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Dr. Elsayed Elbeshbishy
Department of Civil Engineering, Faculty of Engineering, Architecture and Science, Ryerson University, 350 Victoria Street, Toronto M5B 2K3, ON, Canada

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Research Keywords & Expertise

0 Anaerobic Digestion
0 co-digestion
0 Biohydrogen and biomethane production
0 Pretreatment of municipal solid wastes
0 Volatile fatty acid production from waste

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Anaerobic Digestion
co-digestion
Volatile fatty acid production from waste

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Review
Published: 30 August 2021 in Water Environment Research
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Anaerobic co-digestion (AnCoD), has attracted attention owing to its advantages over conventional anaerobic digestion and attempts are still going on to develop methods for improving the efficiency of this technology. Mostly, addition of co-substrates without applying a proper pretreatment cannot adequately enhance the performance of the digestion. However, there is a lack of a comprehensive study on different pretreatment methods specific to the wide range of co-substrates. This review aimed to: i. categorize pretreatment techniques that have been developed for improving AnCoD; ii. present the results of the studies on the effect of pretreatment on improving AnCoD; iii. provide a comparison between pretreatment methods and their application for different types of co-substrates. The findings primarily validated the influence of pretreatment to enhance the process by increasing biodegradability, improved hydrolysis, reduced HRT and improved methane production. The five main categories of pretreatment employed in co-digestion included: mechanical, thermal, chemical, biological and hybrid pretreatment. Among them, mechanical and biological pretreatment have the most and least application in co-digestion, respectively. Greater efforts are required on the application of biological pretreatment and cost-benefit analysis of different pretreatment options on the variety of the co-substrates.

ACS Style

Anahita Rabii; Ehssan Hosseini Koupaie; Saad Aldin; Yaser Dahman; Elsayed Elbeshbishy. Methods of Pretreatment and their Impacts on Anaerobic Co‐digestion of Multi Feedstocks‐ A Review. Water Environment Research 2021, 1 .

AMA Style

Anahita Rabii, Ehssan Hosseini Koupaie, Saad Aldin, Yaser Dahman, Elsayed Elbeshbishy. Methods of Pretreatment and their Impacts on Anaerobic Co‐digestion of Multi Feedstocks‐ A Review. Water Environment Research. 2021; ():1.

Chicago/Turabian Style

Anahita Rabii; Ehssan Hosseini Koupaie; Saad Aldin; Yaser Dahman; Elsayed Elbeshbishy. 2021. "Methods of Pretreatment and their Impacts on Anaerobic Co‐digestion of Multi Feedstocks‐ A Review." Water Environment Research , no. : 1.

Journal article
Published: 07 July 2021 in Waste Management
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This study focused on investigating the effect of combined chemical and hydrothermal pretreatment (HTP) on the anaerobic digestibility of thickened waste activated sludge (TWAS). Three different combined pretreatment conditions of HTP + free nitrous acid (FNA), HTP + Acid, and HTP + Alkaline were applied to TWAS. To control and compare the effect of combined pretreatments and a single pretreatment, Acid, Alkaline, FNA and HTP pretreatments were applied done prior to AD. The results of this study revealed that combined pretreatments have higher potential to improve methane production yield and rate but not in the solubilization of COD. The highest methane yield of 275 mL CH4/g TCOD added was achieved for the combined pretreatment with FNA and HTP. HTP + FNA pretreatment was found to produce higher methane yields compared to the combination of other typical acid and alkaline reagents with hydrothermal pretreatment. Methane yields of 594, 527, and 544 L CH4/g VSS added, were achieved for HTP + FNA, HTP + ALK, and HTP + ACID pretreatments, respectively. The preliminary economic analysis showed that out of the combined pretreatment, only combining HTP with FNA is economically feasible.

ACS Style

Farokh Laqa Kakar; Neha Purohit; Frances Okoye; Steven N. Liss; Elsayed Elbeshbishy. Combined hydrothermal and free nitrous acid, alkali and acid pretreatment for biomethane recovery from municipal sludge. Waste Management 2021, 131, 376 -385.

AMA Style

Farokh Laqa Kakar, Neha Purohit, Frances Okoye, Steven N. Liss, Elsayed Elbeshbishy. Combined hydrothermal and free nitrous acid, alkali and acid pretreatment for biomethane recovery from municipal sludge. Waste Management. 2021; 131 ():376-385.

Chicago/Turabian Style

Farokh Laqa Kakar; Neha Purohit; Frances Okoye; Steven N. Liss; Elsayed Elbeshbishy. 2021. "Combined hydrothermal and free nitrous acid, alkali and acid pretreatment for biomethane recovery from municipal sludge." Waste Management 131, no. : 376-385.

Journal article
Published: 20 February 2021 in Renewable and Sustainable Energy Reviews
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This research aims to provide new insights into the performance and the microbial dynamics of the sludge fermentation process coupled with thermal hydrolysis. Two semi-continuous fermenters were operated under the mesophilic and thermophilic conditions at the retention time of three days. Thermal hydrolysis (TH) was applied either before (pre-hydrolysis) or after (post-hydrolysis) the fermentation process at a temperature, pressure, and stationary time of 170 °C, 115 psi, and 30 min, respectively. The process incorporating pre-hydrolysis achieved 10–16% higher solubilization and volatile fatty acids (VFAs) production than that of post-hydrolysis. Acetate and propionate prevailed in both process schemes. However, significantly higher iso-butyrate and lower butyrate were recovered through the fermentation of pre-hydrolyzed sludge. Pre-hydrolysis stimulated the growth of more kinetically efficient fermentative bacteria such as Bacteroidetes and Firmicutes due to the abundance of soluble organic matters; however, it reduced the overall microbial diversity. The findings of this research suggest that coupling TH and acidogenic fermentation can provide an opportunity to enhance the production of soluble organics (e.g., VFAs) from wastewater sludge, which can be utilized for various applications including as an external carbon source for the on-site biological nutrient removal.

ACS Style

E. Hosseini Koupaie; L. Lin; A.A. Bazyar Lakeh; A. Azizi; B.R. Dhar; H. Hafez; E. Elbeshbishy. Performance evaluation and microbial community analysis of mesophilic and thermophilic sludge fermentation processes coupled with thermal hydrolysis. Renewable and Sustainable Energy Reviews 2021, 141, 110832 .

AMA Style

E. Hosseini Koupaie, L. Lin, A.A. Bazyar Lakeh, A. Azizi, B.R. Dhar, H. Hafez, E. Elbeshbishy. Performance evaluation and microbial community analysis of mesophilic and thermophilic sludge fermentation processes coupled with thermal hydrolysis. Renewable and Sustainable Energy Reviews. 2021; 141 ():110832.

Chicago/Turabian Style

E. Hosseini Koupaie; L. Lin; A.A. Bazyar Lakeh; A. Azizi; B.R. Dhar; H. Hafez; E. Elbeshbishy. 2021. "Performance evaluation and microbial community analysis of mesophilic and thermophilic sludge fermentation processes coupled with thermal hydrolysis." Renewable and Sustainable Energy Reviews 141, no. : 110832.

Journal article
Published: 16 December 2020 in Water Science and Technology
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This study evaluated the impact of hydrothermal pretreatment on thickened waste activated sludge (TWAS) for solubilization enhancement and biomethane production improvement through the mesophilic anaerobic digestion process. In order to assess the effect of temperature, retention time and severity index (SI) of the hydrothermal pretreatment, TWAS was exposed to fifteen different pretreatment conditions within a combination of 10 different pretreatment temperature range (150–240 °C), five different retention times (5–30 min) and five different severity indexes (SI = 3, 3.5, 4, 4.5 and 5). The solubilization enhancement was observed in all hydrothermally pretreated samples with the highest solubilization efficiency of 49% in pretreatment conditions of 200 °C and 10 min retention time within the corresponding SI = 4. Biomethane production was not improved in all fifteen pretreatment conditions, pretreatment with SI beyond 4 decreased the biodegradability of TWAS. The highest biomethane production was observed in the pretreatment condition of 170 °C and 10 min with a 40% increase compared to non-pretreated TWAS.

ACS Style

Ahmad Shabir Razavi; Farokhlaqa Kakar; Ehssan Hosseini Koupaie; Hisham Hafez; Elsayed Elbeshbishy. Biomethane production improvement by hydrothermal pretreatment of thickened waste activated sludge. Water Science and Technology 2020, 83, 487 -500.

AMA Style

Ahmad Shabir Razavi, Farokhlaqa Kakar, Ehssan Hosseini Koupaie, Hisham Hafez, Elsayed Elbeshbishy. Biomethane production improvement by hydrothermal pretreatment of thickened waste activated sludge. Water Science and Technology. 2020; 83 (2):487-500.

Chicago/Turabian Style

Ahmad Shabir Razavi; Farokhlaqa Kakar; Ehssan Hosseini Koupaie; Hisham Hafez; Elsayed Elbeshbishy. 2020. "Biomethane production improvement by hydrothermal pretreatment of thickened waste activated sludge." Water Science and Technology 83, no. 2: 487-500.

Journal article
Published: 30 November 2020 in Processes
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The main objective of this study was to evaluate the hydrothermal pretreatment’s retention time influence on the volatile fatty acids and biomethane production from thickened waste activated sludge under mesophilic conditions. Six different retention times of 10, 20, 30, 40, 50, and 60 min were investigated while the hydrothermal pretreatment temperature was kept at 170 °C. The results showed that the chemical oxygen demand (COD) solubilization increased by increasing the hydrothermal pretreatment retention time up to 30 min and stabilized afterwards. The highest COD solubilization of 48% was observed for the sample pretreated at 170 °C for 30 min. Similarly, the sample pretreated at 170 °C for 30 min demonstrated the highest volatile fatty acids yield of 14.5 g COD/Lsubstrate added and a methane yield of 225 mL CH4/g TCODadded compared to 4.3 g COD/Lsubstrate added and 163 mL CH4/g TCODadded for the raw sample, respectively. The outcome of this study revealed that the optimum conditions for solubilization are not necessarily associated with the best fermentation and/or digestion performance.

ACS Style

Farokh Kakar; Ahmed El Sayed; Neha Purohit; Elsayed Elbeshbishy. Volatile Fatty Acids and Biomethane Recovery from Thickened Waste Activated Sludge: Hydrothermal Pretreatment’s Retention Time Impact. Processes 2020, 8, 1580 .

AMA Style

Farokh Kakar, Ahmed El Sayed, Neha Purohit, Elsayed Elbeshbishy. Volatile Fatty Acids and Biomethane Recovery from Thickened Waste Activated Sludge: Hydrothermal Pretreatment’s Retention Time Impact. Processes. 2020; 8 (12):1580.

Chicago/Turabian Style

Farokh Kakar; Ahmed El Sayed; Neha Purohit; Elsayed Elbeshbishy. 2020. "Volatile Fatty Acids and Biomethane Recovery from Thickened Waste Activated Sludge: Hydrothermal Pretreatment’s Retention Time Impact." Processes 8, no. 12: 1580.

Editorial
Published: 18 August 2020 in Processes
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The increasing quantity of biowaste generation and the requirements governing their ultimate

ACS Style

Elsayed Elbeshbishy; Bipro Ranjan Dhar. Processes for Bioenergy and Resources Recovery from Biowaste. Processes 2020, 8, 1005 .

AMA Style

Elsayed Elbeshbishy, Bipro Ranjan Dhar. Processes for Bioenergy and Resources Recovery from Biowaste. Processes. 2020; 8 (8):1005.

Chicago/Turabian Style

Elsayed Elbeshbishy; Bipro Ranjan Dhar. 2020. "Processes for Bioenergy and Resources Recovery from Biowaste." Processes 8, no. 8: 1005.

Article
Published: 23 October 2019 in BioEnergy Research
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Investigating the impact of hydrothermal pretreatment (HTP) on organic solubilization and anaerobic acidification of thickened waste activated sludge (TWAS) was the objective of this study. For this purpose, 15 different hydrothermal pretreatment scenarios were investigated. The HTP temperature, retention time, and pressure for this study extended from 150 to 240 °C, 5 to 30 min, and 69 to 488 psi respectively. Mesophilic batch acidification tests were conducted for all pretreated and raw samples. The highest solubilization percentage after HTP and acidification was observed at HTP condition of “200 °C–10 min–225 psi” and “180 °C–15 min–145 psi” accounting for 48% and 40% respectively. Moreover, The HTP condition of “190 °C–10 min–181 psi” indicated the highest volatile fatty acid (VFA) production yield of 5.38 g/L or 1076.6 mgVFAs/gVSSadded. For all hydrothermally pretreated samples, acetic acid was determined to be the most abundant VFA. There was no significant hydrogen produced during the acidification process.

ACS Style

Farokh Laqa Kakar; Ehssan Hosseini Koupaie; Ahmed Shabir Razavi; Hisham Hafez; Elsayed Elbeshbishy. Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Thickened Waste Activated Sludge. BioEnergy Research 2019, 13, 591 -604.

AMA Style

Farokh Laqa Kakar, Ehssan Hosseini Koupaie, Ahmed Shabir Razavi, Hisham Hafez, Elsayed Elbeshbishy. Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Thickened Waste Activated Sludge. BioEnergy Research. 2019; 13 (2):591-604.

Chicago/Turabian Style

Farokh Laqa Kakar; Ehssan Hosseini Koupaie; Ahmed Shabir Razavi; Hisham Hafez; Elsayed Elbeshbishy. 2019. "Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Thickened Waste Activated Sludge." BioEnergy Research 13, no. 2: 591-604.

Journal article
Published: 01 September 2019 in Processes
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The current study investigates the effect of hydrothermal pretreatment (HTP) on acidification of source-separated organics (SSO) in terms of volatile fatty acids (VFAs) production and solubilization. Temperature and retention time for HTP of SSO ranged from 150 to 240 °C and 5 to 30 min, respectively. The soluble substance after hydrothermal pretreatment initially increased, reaching its peak at 210 °C and then declined gradually. The highest overall chemical oxygen demand (COD) solubilization of 63% was observed at “210 °C-20 min” compared to 17% for raw SSO. The highest VFAs yield of 1536 mg VFAs/g VSS added was observed at “210 °C-20 min” compared to 768 mg VFAs/g VSS for raw SSO. Intensification of hydrothermal pretreatment temperature beyond 210 °C resulted in the mineralization of the organics and adversely affected the process.

ACS Style

Farokh Laqa Kakar; Ehssan Hosseini Koupaie; Hisham Hafez; Elsayed Elbeshbishy. Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Source-Separated Organics. Processes 2019, 7, 576 .

AMA Style

Farokh Laqa Kakar, Ehssan Hosseini Koupaie, Hisham Hafez, Elsayed Elbeshbishy. Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Source-Separated Organics. Processes. 2019; 7 (9):576.

Chicago/Turabian Style

Farokh Laqa Kakar; Ehssan Hosseini Koupaie; Hisham Hafez; Elsayed Elbeshbishy. 2019. "Effect of Hydrothermal Pretreatment on Volatile Fatty Acids Production from Source-Separated Organics." Processes 7, no. 9: 576.

Book chapter
Published: 24 July 2019 in Municipal Solid Waste Management
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Household hazardous waste (HHW) is not always separated for proper handling before disposal. When disposed improperly to landfills and municipal treatment plants, these products can have significant impact on the environment. Although HHW is a small portion of municipal solid waste, the presence of HHW in solid management facilities that are not equipped to handle them can have problematic effects, resulting in environmental pollution, damage to facilities, and even injury to workers. In many countries, HHW is not subject to legislation unless separated from other household waste because of its small percentage and the challenge in enforcement. In addition, there is no standard definition of HHW globally; therefore, what constitutes to HHW in one country may not be in another. Government legislation and schemes such as Extended Producer Responsibility play a vital role in encouraging proper disposal among consumers, especially when they are convenient and accessible. In this chapter, hazardous household products in different countries are considered along with common improper and acceptable disposal methods. Furthermore, the impacts of improper disposal on the environment are explored with an emphasis on landfill leachate and wastewater treatment plant effluent. Finally, current legislation and programs that encourage proper disposal are discussed.

ACS Style

Elsayed Elbeshbishy; Frances Okoye. Improper Disposal of Household Hazardous Waste: Landfill/Municipal Wastewater Treatment Plant. Municipal Solid Waste Management 2019, 1 .

AMA Style

Elsayed Elbeshbishy, Frances Okoye. Improper Disposal of Household Hazardous Waste: Landfill/Municipal Wastewater Treatment Plant. Municipal Solid Waste Management. 2019; ():1.

Chicago/Turabian Style

Elsayed Elbeshbishy; Frances Okoye. 2019. "Improper Disposal of Household Hazardous Waste: Landfill/Municipal Wastewater Treatment Plant." Municipal Solid Waste Management , no. : 1.

Journal article
Published: 02 May 2019 in Biochemical Engineering Journal
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This study aimed to investigate the effect of hydrothermal pretreatment (HTP) on single- and two-stage anaerobic digestion (AD) of source separated organics (SSO). The single stage AD was conducted in a batch mode. For the two-stage AD, the first stage (acidogenic fermentation) was perfromed under the semi-continuous flow regime, while, the second stage (methanogenesis) was conducted in a batch condition. The HTP was applied either before or after the acidogenic fermentation stage of the two-stage AD process at a temperature and pressure of 170 °C and 115 psi for 30 min. Thermal hydrolysis of SSO resulted in 32% suspended solids reduction, which was more than that of the acidogenic fermentation process (16-22%). Of all the investigated scenarios, the implementation of the two-stage AD fed with thermally pretreated SSO revealed the highest degree of COD solubilization (36%) and VFAs production (19,700 mg/L). This scenario also resulted in an ultimate biomethane recovery of 314 mL/g TCODadded, which was 35% higher than that of the single-stage AD of raw SSO (232 mL/g TCODadded). Considering the outcomes of this research, the combined HTP/two-stage AD can be suggested as an effective technique for enhanced bioconversion of SSO.

ACS Style

A. Azizi; E. Hosseini Koupaie; H. Hafez; E. Elbeshbishy. Improving single- and two-stage anaerobic digestion of source separated organics by hydrothermal pretreatment. Biochemical Engineering Journal 2019, 148, 77 -86.

AMA Style

A. Azizi, E. Hosseini Koupaie, H. Hafez, E. Elbeshbishy. Improving single- and two-stage anaerobic digestion of source separated organics by hydrothermal pretreatment. Biochemical Engineering Journal. 2019; 148 ():77-86.

Chicago/Turabian Style

A. Azizi; E. Hosseini Koupaie; H. Hafez; E. Elbeshbishy. 2019. "Improving single- and two-stage anaerobic digestion of source separated organics by hydrothermal pretreatment." Biochemical Engineering Journal 148, no. : 77-86.

Journal article
Published: 23 April 2019 in Journal of Cleaner Production
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In this research, the physiochemical characteristics of source separated organics (SSO) throughout a long-term period, along with their possible effects on anaerobic digestion (AD), acidogenic fermentation, and hydrolysis processes were investigated. Seasonal characteristics of SSO revealed significant differences in some factors demonstrating that eating habits, waste handling, and collection techniques would lead to the variation in SSO characteristics. The SSO collected during the summer months revealed a significantly higher yield for soluble COD based on the mass of volatile suspended solids (VSS) (428 mg/g-VSS) and volatile fatty acids (VFAs) production (292 mg COD VFAs/g-VSS) compared to those of the winter samples. The results revealed that 65–68% of the produced SCOD during the acidogenic fermentation process belonged to VFAs. It was also revealed that 85% of the VFAs was produced during the first two days of the fermentation process. The mesophilic batch AD process achieved based on the mass of volatile solids (VS) an average methane yield of 555 mL CH4/g VS, which was significantly higher than the range of 350–480 mL CH4/g-VS reported for food waste in the literature. Considering the results of the present study, the SSO has a significant potential to produce biomethane and VFAs at the industrial scale. The cost-benefit analysis of a full-scale AD plant with a capacity of processing 76,000 tonnes SSO/year revealed that the revenue from selling the SSO-derived CH4 (∼400,000 $/year) could compensate for about 20% of the operating cost of the plant.

ACS Style

A.A. Bazyar Lakeh; A. Azizi; E. Hosseini Koupaie; V. Bekmuradov; H. Hafez; E. Elbeshbishy. A comprehensive study for characteristics, acidogenic fermentation, and anaerobic digestion of source separated organics. Journal of Cleaner Production 2019, 228, 73 -85.

AMA Style

A.A. Bazyar Lakeh, A. Azizi, E. Hosseini Koupaie, V. Bekmuradov, H. Hafez, E. Elbeshbishy. A comprehensive study for characteristics, acidogenic fermentation, and anaerobic digestion of source separated organics. Journal of Cleaner Production. 2019; 228 ():73-85.

Chicago/Turabian Style

A.A. Bazyar Lakeh; A. Azizi; E. Hosseini Koupaie; V. Bekmuradov; H. Hafez; E. Elbeshbishy. 2019. "A comprehensive study for characteristics, acidogenic fermentation, and anaerobic digestion of source separated organics." Journal of Cleaner Production 228, no. : 73-85.

Journal article
Published: 13 April 2019 in Molecules
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This study compares the effects of pre- and post-hydrothermal treatment of source- separated organics (SSO) on solubilization of particulate organics and acidogenic fermentation for volatile fatty acids (VFAs) production. The overall COD solubilization and solids removal efficiencies from both schemes were comparable. However, the pre-hydrolysis of SSO followed by acidogenic fermentation resulted in a relatively higher VFA yield of 433 mg/g VSS, which was 18% higher than that of a process scheme with a post-hydrolysis of dewatered solids from the fermentation process. Regarding the composition of VFA, the dominance of acetate and butyrate was comparable in both process schemes, while propionate concentration considerably increased in the process with pre-hydrolysis of SSO. The microbial community results showed that the relative abundance of Firmicutes increased substantially in the fermentation of pretreated SSO, indicating that there might be different metabolic pathways for production of VFAs in fermentation process operated with pre-treated SSO. The possible reason might be that the abundance of soluble organic matters due to pre-hydrolysis might stimulate the growth of more kinetically efficient fermentative bacteria as indicated by the increase in Firmicutes percentage.

ACS Style

Long Lin; Ehssan Hosseini Koupaie; Armineh Azizi; Amir Abbas Bazyar Lakeh; Bipro R. Dhar; Hisham Hafez; Elsayed Elbeshbishy. Comparison of Two Process Schemes Combining Hydrothermal Treatment and Acidogenic Fermentation of Source-Separated Organics. Molecules 2019, 24, 1466 .

AMA Style

Long Lin, Ehssan Hosseini Koupaie, Armineh Azizi, Amir Abbas Bazyar Lakeh, Bipro R. Dhar, Hisham Hafez, Elsayed Elbeshbishy. Comparison of Two Process Schemes Combining Hydrothermal Treatment and Acidogenic Fermentation of Source-Separated Organics. Molecules. 2019; 24 (8):1466.

Chicago/Turabian Style

Long Lin; Ehssan Hosseini Koupaie; Armineh Azizi; Amir Abbas Bazyar Lakeh; Bipro R. Dhar; Hisham Hafez; Elsayed Elbeshbishy. 2019. "Comparison of Two Process Schemes Combining Hydrothermal Treatment and Acidogenic Fermentation of Source-Separated Organics." Molecules 24, no. 8: 1466.

Data article
Published: 11 April 2019 in Data in Brief
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The dataset reported in this article provides quantitative data on anaerobic digestion of cattle manure, source separated organics (SSO), primary sludge (PS), and thickened waste activated sludge (TWAS) using different inoculum sources. The discussion and interpretation of the data are provided in another publication entitled “Comparison of liquid and dewatered digestate as inoculum for anaerobic digestion of organic solid wastes” [1]. The data presented in this article include 1) the gas chromatography (GC) procedure of determining the biogas composition, 2) the procedure of converting the daily biogas/methane production data from the experimental condition (mesophilic temperature of 38 °C and room pressure) to the standard temperature (0 °C) and pressure (1 atm) condition, 3) the specific methanogenic activity data, and 4) the methane daily production rate data, and 5) the organics biodegradation kinetic rates.

ACS Style

E. Hosseini Koupaie; A. Azizi; A.A. Bazyar Lakeh; H. Hafez; E. Elbeshbishy. A comprehensive dataset on anaerobic digestion of cattle manure, source separated organics, and municipal sludge using different inoculum sources. Data in Brief 2019, 24, 103913 .

AMA Style

E. Hosseini Koupaie, A. Azizi, A.A. Bazyar Lakeh, H. Hafez, E. Elbeshbishy. A comprehensive dataset on anaerobic digestion of cattle manure, source separated organics, and municipal sludge using different inoculum sources. Data in Brief. 2019; 24 ():103913.

Chicago/Turabian Style

E. Hosseini Koupaie; A. Azizi; A.A. Bazyar Lakeh; H. Hafez; E. Elbeshbishy. 2019. "A comprehensive dataset on anaerobic digestion of cattle manure, source separated organics, and municipal sludge using different inoculum sources." Data in Brief 24, no. : 103913.

Review
Published: 21 March 2019 in Energies
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Recent studies have shown that anaerobic co-digestion (AnCoD) is superior to conventional anaerobic digestion (AD). The benefits of enhanced bioenergy production and solids reduction using co-substrates have attracted researchers to study the co-digestion technology and to better understand the effect of multi substrates on digester performance. This review will discuss the results of such studies with the main focus on: (1) generally the advantages of co-digestion over mono-digestion in terms of system stability, bioenergy, and solids reduction; (2) microbial consortia diversity and their synergistic impact on biogas improvement; (3) the effect of digester mode, i.e., multi-stage versus single stage digestion on AnCoD. It is essential to note that the studies reported improvement in the synergy and diverse microbial consortia when using co-digestion technologies, in addition to higher biomethane yield when using two-stage mode. A good example would be the co-digestion of biodiesel waste and glycerin with municipal waste sludge in a two-stage reactor resulting in 100% increase of biogas and 120% increase in the methane content of the produced biogas with microbial population dominated by Methanosaeta and Methanomicrobium.

ACS Style

Anahita Rabii; Saad Aldin; Yaser Dahman; Elsayed Elbeshbishy. A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration. Energies 2019, 12, 1106 .

AMA Style

Anahita Rabii, Saad Aldin, Yaser Dahman, Elsayed Elbeshbishy. A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration. Energies. 2019; 12 (6):1106.

Chicago/Turabian Style

Anahita Rabii; Saad Aldin; Yaser Dahman; Elsayed Elbeshbishy. 2019. "A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration." Energies 12, no. 6: 1106.

Journal article
Published: 10 February 2019 in Waste Management
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In this study, the application of liquid and dewatered digestate was compared for the inoculation of the anaerobic digestion (AD) process. In addition to the specific methanogenic activity and biohydrogen potential tests, biochemical methane potential assay was also conducted using four different types of municipal and industrial waste streams (primary sludge, thickened waste activated sludge, source separated organics, and cattle manure). The specific methanogenic activity of the digestate cake (5.0 ± 0.5 mL-CH4/g-VSS.d) was higher than that of the liquid digestate (3.4 ± 0.2 mL-CH4/g-VSS.d) for the food to microorganism ratio of 0.5. The BMP results also revealed that regardless of the type of the substrate used, the application of the digestate cake as inoculum achieved statistically significantly higher methane production rate compared to the utilization of liquid digestate, most likely due to the lower concentration of dissolved contents (i.e., ammonia, soluble organic matter, heavy metals, etc.) in the diluted digestate cake. Despite the increased process rate, no statistically significant effect of the type of the inoculum was observed on the ultimate methane yield. The biohydrogen potential test revealed the similar performance of the digestate- and digestate cake-inoculated digesters in terms of biohydrogen and volatile fatty acids production. The findings of this study suggest that the digestate cake can be used as an effective alternative to the liquid digestate for the inoculation of full-scale anaerobic digesters, reducing the transportation volume by up to 90%.

ACS Style

E. Hosseini Koupaie; A. Azizi; A.A. Bazyar Lakeh; H. Hafez; E. Elbeshbishy. Comparison of liquid and dewatered digestate as inoculum for anaerobic digestion of organic solid wastes. Waste Management 2019, 87, 228 -236.

AMA Style

E. Hosseini Koupaie, A. Azizi, A.A. Bazyar Lakeh, H. Hafez, E. Elbeshbishy. Comparison of liquid and dewatered digestate as inoculum for anaerobic digestion of organic solid wastes. Waste Management. 2019; 87 ():228-236.

Chicago/Turabian Style

E. Hosseini Koupaie; A. Azizi; A.A. Bazyar Lakeh; H. Hafez; E. Elbeshbishy. 2019. "Comparison of liquid and dewatered digestate as inoculum for anaerobic digestion of organic solid wastes." Waste Management 87, no. : 228-236.

Data article
Published: 14 January 2019 in Data in Brief
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The presented dataset in this data article provides quantitative data on the production of bioenergy (biogas and biomethane) from mesophilic batch anaerobic digestion (AD) of thermally hydrolyzed organic fraction of municipal solid waste (OFMSW). The discussion and interpretation of the data are provided in another publication entitled "Hydrothermal Pretreatment of Source Separated Organics for Enhanced Solubilization and Biomethane Recovery" (Razavi et al., 2019). The data and information presented in the current data article include (1) the ratio of soluble to particulate chemical oxygen demand (COD) under different thermal hydrolysis condition, (2) the daily measured biogas and biomethane data, (3) the cumulative methane yield data in terms of mL CH4 produced per gram of volatile suspended solids (VSS) as well as feedstock added, (4) the ultimate methane yield data as well as the relative improvement in methane recovery compared to the control (non-hydrolyzed) digester, (5) the data of first-order organics biodegradation rate constants, (6) the procedure of measuring biogas composition via gas chromatography, (7) the procedure of converting the biogas/methane volume data acquired under the actual experimental condition (mesophilic temperature of 38 °C and atmospheric pressure) to the standard temperature (0 °C) and pressure (1 atm) condition, and (8) the procedure of determining the first-order kinetic rate constants.

ACS Style

A.S. Razavi; E. Hosseini Koupaie; A. Azizi; H. Hafez; E. Elbeshbishy. Bioenergy production data from anaerobic digestion of thermally hydrolyzed organic fraction of municipal solid waste. Data in Brief 2019, 22, 1018 -1026.

AMA Style

A.S. Razavi, E. Hosseini Koupaie, A. Azizi, H. Hafez, E. Elbeshbishy. Bioenergy production data from anaerobic digestion of thermally hydrolyzed organic fraction of municipal solid waste. Data in Brief. 2019; 22 ():1018-1026.

Chicago/Turabian Style

A.S. Razavi; E. Hosseini Koupaie; A. Azizi; H. Hafez; E. Elbeshbishy. 2019. "Bioenergy production data from anaerobic digestion of thermally hydrolyzed organic fraction of municipal solid waste." Data in Brief 22, no. : 1018-1026.

Journal article
Published: 10 December 2018 in Bioresource Technology
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The objective of this research was to evaluate the effect of the hydrothermal pretreatment on the solubilization of source separated organics (SSO) as well as the biomethane recovery through the mesophilic batch anaerobic digestion process. For this purpose, the SSO was subjected to fifteen different pretreatment conditions within five different severity index (SI) values (3, 3.5, 4, 4.5, and 5). The pretreatment temperature, holding time, and pressure ranged from 150 to 240°C, 5 to 30 min, and 476 to 3367 kPa, respectively. The highest solubilization improvement of ∼50% was achieved under the pretreatment condition of “220°C-10 min-2323 kPa” corresponding to the SI value of 4.5. However, the maximum biomethane production yield of 280 mL/g TCODadded and biomethane production rate of 30 mL/g TCODadded were obtained under the less intense pretreatment conditions of “190°C-20 min-1247 kPa” and “170°C-30 min-786 kPa”, respectively.

ACS Style

A.S. Razavi; E. Hosseini Koupaie; A. Azizi; H. Hafez; E. Elbeshbishy. Hydrothermal pretreatment of source separated organics for enhanced solubilization and biomethane recovery. Bioresource Technology 2018, 274, 502 -511.

AMA Style

A.S. Razavi, E. Hosseini Koupaie, A. Azizi, H. Hafez, E. Elbeshbishy. Hydrothermal pretreatment of source separated organics for enhanced solubilization and biomethane recovery. Bioresource Technology. 2018; 274 ():502-511.

Chicago/Turabian Style

A.S. Razavi; E. Hosseini Koupaie; A. Azizi; H. Hafez; E. Elbeshbishy. 2018. "Hydrothermal pretreatment of source separated organics for enhanced solubilization and biomethane recovery." Bioresource Technology 274, no. : 502-511.

Review
Published: 09 October 2018 in Journal of Environmental Management
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The rapid depletion of natural resources and the environmental concerns associated with the use of fossil fuels as the main source of global energy is leading to an increased interest in alternative and renewable energy sources. Particular interest has been given to the lignocellulosic biomass as the most abundant source of organic matter with a potential of being utilized for energy recovery. Different approaches have been applied to convert the lignocellulosic biomass to energy products including anaerobic digestion (AD), fermentation, combustion, pyrolysis, and gasification. The AD process has been proven as an effective technology for converting organic material into energy in the form of methane-rich biogas. However, the complex structure of the lignocellulosic biomass comprised of cellulose, hemicelluloses, and lignin hinders the ability of microorganisms in an AD process to degrade and convert these compounds to biogas. Therefore, a pretreatment step is essential to improve the degradability of the lignocellulosic biomass to achieve higher biogas rate and yield. A system that uses pretreatment and AD is known as advanced AD. Several pretreatment methods have been studied over the past few years including physical, thermal, chemical and biological pretreatment. This paper reviews the enzymatic pretreatment as one of the biological pretreatment methods which has received less attention in the literature than the other pretreatment methods. This paper includes a review of lignocellulosic biomass composition, AD process, challenges in degrading lignocellulosic materials, the current status of research to improve the biogas rate and yield from the AD of lignocellulosic biomass via enzymatic pretreatment, and the future trend in research for the reduction of enzymatic pretreatment cost.

ACS Style

E. Hosseini Koupaie; S. Dahadha; A.A. Bazyar Lakeh; A. Azizi; E. Elbeshbishy. Enzymatic pretreatment of lignocellulosic biomass for enhanced biomethane production-A review. Journal of Environmental Management 2018, 233, 774 -784.

AMA Style

E. Hosseini Koupaie, S. Dahadha, A.A. Bazyar Lakeh, A. Azizi, E. Elbeshbishy. Enzymatic pretreatment of lignocellulosic biomass for enhanced biomethane production-A review. Journal of Environmental Management. 2018; 233 ():774-784.

Chicago/Turabian Style

E. Hosseini Koupaie; S. Dahadha; A.A. Bazyar Lakeh; A. Azizi; E. Elbeshbishy. 2018. "Enzymatic pretreatment of lignocellulosic biomass for enhanced biomethane production-A review." Journal of Environmental Management 233, no. : 774-784.

Review article
Published: 26 September 2017 in Energy & Fuels
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Lignocellulosic biomass is the most abundant source of organic materials available, yet it remains highly underutilized as a source of renewable energy products. The complex and rigid properties of lignocellulosic materials make the biomass difficult to digest, and thus it does not offer a significant energy yield once digested through anaerobic digestion (AD). Several pretreatment methods have been developed over the past years to improve the digestibility of lignocellulosic biomass and enhance its energy yield potential. This Review examines the latest technologies and methods used in the pretreatment of lignocellulosic biomass for more efficient AD and energy yield in the form of methane gas. Such pretreatment processes include mechanical, irradiation, thermal, chemical, biological, and combined pretreatment. A comparison between the different types of available pretreatment methods shows that the different methods have been successful in achieving an improvement in the methane yield from lignocellulosic substrates on a laboratory scale. There is a clear variation in the energy requirements, reaction times, and methane improvement for each method. However, more research is necessary to assess the applicability and feasibility of such methods on full-scale facilities. In addition, the optimum choice of a pretreatment process will remain highly dependent on the substrate type and economic feasibility.

ACS Style

Samer Dahadha; Zeid Amin; Amir Abbas Bazyar Lakeh; Elsayed Elbeshbishy. Evaluation of Different Pretreatment Processes of Lignocellulosic Biomass for Enhanced Biomethane Production. Energy & Fuels 2017, 31, 10335 -10347.

AMA Style

Samer Dahadha, Zeid Amin, Amir Abbas Bazyar Lakeh, Elsayed Elbeshbishy. Evaluation of Different Pretreatment Processes of Lignocellulosic Biomass for Enhanced Biomethane Production. Energy & Fuels. 2017; 31 (10):10335-10347.

Chicago/Turabian Style

Samer Dahadha; Zeid Amin; Amir Abbas Bazyar Lakeh; Elsayed Elbeshbishy. 2017. "Evaluation of Different Pretreatment Processes of Lignocellulosic Biomass for Enhanced Biomethane Production." Energy & Fuels 31, no. 10: 10335-10347.

Journal article
Published: 01 August 2015 in Bioresource Technology
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This study investigates the potential of using a novel integrated biohydrogen reactor clarifier system (IBRCS) for acetone-butanol-ethanol (ABE) production using a mixed culture at different organic loading rates (OLRs). The results of this study showed that using a setting tank after the fermenter and recycle the settled biomass to the fermenter is a practical option to achieve high biomass concentration in the fermenter and thus sustainable ABE fermentation in continuous mode. The average ABE concentrations of 2.3, 7.0, and 14.6gABE/L which were corresponding to ABE production rates of 0.4, 1.4, and 2.8gABE/Lreactorh were achieved at OLRs of 21, 64, and 128gCOD/Lreactord, respectively. The main volatile fatty acids components in the effluent were acetic, propionic, and butyric acids. Acetic acid was the predominant component in the OLR-1, while butyric acid was the predominant acid in OLRs 2 and 3.

ACS Style

Elsayed Elbeshbishy; Bipro Ranjan Dhar; Hisham Hafez; Hyung-Sool Lee. Acetone–butanol–ethanol production in a novel continuous flow system. Bioresource Technology 2015, 190, 315 -320.

AMA Style

Elsayed Elbeshbishy, Bipro Ranjan Dhar, Hisham Hafez, Hyung-Sool Lee. Acetone–butanol–ethanol production in a novel continuous flow system. Bioresource Technology. 2015; 190 ():315-320.

Chicago/Turabian Style

Elsayed Elbeshbishy; Bipro Ranjan Dhar; Hisham Hafez; Hyung-Sool Lee. 2015. "Acetone–butanol–ethanol production in a novel continuous flow system." Bioresource Technology 190, no. : 315-320.