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Lianghu Su
Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China

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Journal article
Published: 01 June 2021 in Sustainability
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As a potential adsorbent material, loose, porous livestock manure biochar provides a new approach to livestock manure resource utilization. In this study, coconut husks (CH) and livestock manure, i.e., cow dung (CD), pig manure (PM), and chicken manure (CM) were used as biomass precursors for preparation of biochar via high-temperature pyrolysis and CO2 activation. Characterization technologies, such as scanning electron microscopy, Fourier transform infrared spectroscopy, adsorption–desorption isotherms, and pore size distributions, were used to study the microscopic morphologies and physicochemical properties of unactivated and activated biochar materials. The results showed that CD biochar provides better adsorption performance (up to 29.81 mg H2S/g) than CM or PM biochar. After activation at 650° for 1 h, the best adsorption performance was 38.23 mg H2S/g. For comparison, the CH biochar removal performance was 30.44 mg H2S/g. Its best performance was 38.73 mg H2S/g after 1 h of activation at 750 °C. Its best removal performance is equivalent to that of CH biochar activated at a temperature that is 100 °C higher. Further material characterization indicates that the H2S removal performance of livestock-manure–derived biochar is not entirely dependent on the specific surface area, but is closely related to the pore size distribution.

ACS Style

Lianghu Su; Mei Chen; Guihua Zhuo; Rongting Ji; Saier Wang; Longjiang Zhang; Mingzhu Zhang; Haidong Li. Comparison of Biochar Materials Derived from Coconut Husks and Various Types of Livestock Manure, and Their Potential for Use in Removal of H2S from Biogas. Sustainability 2021, 13, 6262 .

AMA Style

Lianghu Su, Mei Chen, Guihua Zhuo, Rongting Ji, Saier Wang, Longjiang Zhang, Mingzhu Zhang, Haidong Li. Comparison of Biochar Materials Derived from Coconut Husks and Various Types of Livestock Manure, and Their Potential for Use in Removal of H2S from Biogas. Sustainability. 2021; 13 (11):6262.

Chicago/Turabian Style

Lianghu Su; Mei Chen; Guihua Zhuo; Rongting Ji; Saier Wang; Longjiang Zhang; Mingzhu Zhang; Haidong Li. 2021. "Comparison of Biochar Materials Derived from Coconut Husks and Various Types of Livestock Manure, and Their Potential for Use in Removal of H2S from Biogas." Sustainability 13, no. 11: 6262.

Paper
Published: 16 April 2021 in RSC Advances
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Characterizing DOM during the anaerobic digestion process of crop straw by EEM-PARAFAC, fluorescence indices and Stokes shift.

ACS Style

Lianghu Su; Mei Chen; Saier Wang; Rongting Ji; Chenwei Liu; Xueqin Lu; Guangyin Zhen; Longjiang Zhang. Fluorescence characteristics of dissolved organic matter during anaerobic digestion of oil crop straw inoculated with rumen liquid. RSC Advances 2021, 11, 14347 -14356.

AMA Style

Lianghu Su, Mei Chen, Saier Wang, Rongting Ji, Chenwei Liu, Xueqin Lu, Guangyin Zhen, Longjiang Zhang. Fluorescence characteristics of dissolved organic matter during anaerobic digestion of oil crop straw inoculated with rumen liquid. RSC Advances. 2021; 11 (24):14347-14356.

Chicago/Turabian Style

Lianghu Su; Mei Chen; Saier Wang; Rongting Ji; Chenwei Liu; Xueqin Lu; Guangyin Zhen; Longjiang Zhang. 2021. "Fluorescence characteristics of dissolved organic matter during anaerobic digestion of oil crop straw inoculated with rumen liquid." RSC Advances 11, no. 24: 14347-14356.

Research article
Published: 11 November 2020 in Archaea
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Thermophilic solid-state anaerobic digestion (SS-AD) of agricultural wastes, i.e., corn straw, cattle manure, and vegetable waste, was carried out in this study. The effects of temperature (40-60°C), initial solid content (ISC, 17.5-32.5%), and C/N ratio (15-32 : 1) on biogas production were evaluated using a Box-Behnken experimental design (BBD) combined with response surface methodology (RSM). The results showed that optimization of process parameters is important to promote the SS-AD performance. All the factors, including interactive terms (except the ISC), were significant in the quadratic model for biogas production with SS-AD. Among the three operation parameters, the C/N ratio had the largest effect on biogas production, followed by temperature, and a maximum biogas yield of 241.4 mL gVS-1 could be achieved at 47.3°C, ISC = 24.81 % , and C / N = 22.35 . After 20 d of SS-AD, the microbial community structure under different conditions was characterized by high-throughput sequencing, showing that Firmicutes, Bacteroidetes, Chloroflexi, Synergistetes, and Proteobacteria dominated the bacterial community, and that Firmicutes had a competitive advantage over Bacteroidetes at elevated temperatures. The biogas production values and relative abundance of OPB54 and Bacteroidia after 20 d of SS-AD can be fitted well using a quadratic model, implying that OPB54 and Bacteroidia play important roles in the methanogenic metabolism for agricultural waste thermophilic SS-AD.

ACS Style

Lianghu Su; Xu Sun; Chenwei Liu; Rongting Ji; Guangyin Zhen; Mei Chen; Longjiang Zhang. Thermophilic Solid-State Anaerobic Digestion of Corn Straw, Cattle Manure, and Vegetable Waste: Effect of Temperature, Total Solid Content, and C/N Ratio. Archaea 2020, 2020, 1 -10.

AMA Style

Lianghu Su, Xu Sun, Chenwei Liu, Rongting Ji, Guangyin Zhen, Mei Chen, Longjiang Zhang. Thermophilic Solid-State Anaerobic Digestion of Corn Straw, Cattle Manure, and Vegetable Waste: Effect of Temperature, Total Solid Content, and C/N Ratio. Archaea. 2020; 2020 ():1-10.

Chicago/Turabian Style

Lianghu Su; Xu Sun; Chenwei Liu; Rongting Ji; Guangyin Zhen; Mei Chen; Longjiang Zhang. 2020. "Thermophilic Solid-State Anaerobic Digestion of Corn Straw, Cattle Manure, and Vegetable Waste: Effect of Temperature, Total Solid Content, and C/N Ratio." Archaea 2020, no. : 1-10.

Journal article
Published: 20 August 2018 in Environmental Technology
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Dark tea-iron nanoparticles (DT-Fe NPs) were prepared using extracts of dark tea leaves as a reducing agent, and further underwent thermal treatment in air. The H2S removal performances of thermal-treated DT-Fe NPs for biogas were further evaluated using a custom-designed fixed-bed reactor (reaction temperature of 250°C, H2S content of 1%). Significant morphology and chemical composition differences were observed when DT-Fe NPs were treated at different temperatures (300-800oC). X-ray diffractometer analysis revealed that a phase transition from γ-Fe2O3 to α-Fe2O3 occurred under heat treatment. When the thermal treatment temperature was 300°C, only α-Fe2O3 was detected. Both α-Fe2O3 and γ-Fe2O3 were present in the sample treated at 400°C. When the thermal treatment temperature was 500-800°C, γ-Fe2O3 in the sample was completely converted to α-Fe2O3. The H2S removal capacity is 14.72 mg H2S/g for DT-Fe NPs without treatment. However, the value increased significantly to 408.30 mg H2S/g after 400°C thermal treatment, which can be explained by the formation of highly active γ-Fe2O3. The reaction product of thermal-treated DT-Fe NPs at 400°C and H2S were further characterized by X-ray diffractometer and X-ray photoelectron spectroscopy. The results showed that it is composed of FeS2 and FeS, in which 72.6% of the sulphur existed as disulphide and 27.4% as monosulphide.

ACS Style

Xiaolin Li; Yongxing Zhan; Lianghu Su; Yudong Chen; Mei Chen; Longjiang Zhang; Guangyin Zhen; Zhihua Han; Xiaoli Chai. Sequestration of Sulphide from Biogas by thermal-treated iron nanoparticles synthesized using tea polyphenols. Environmental Technology 2018, 41, 741 -750.

AMA Style

Xiaolin Li, Yongxing Zhan, Lianghu Su, Yudong Chen, Mei Chen, Longjiang Zhang, Guangyin Zhen, Zhihua Han, Xiaoli Chai. Sequestration of Sulphide from Biogas by thermal-treated iron nanoparticles synthesized using tea polyphenols. Environmental Technology. 2018; 41 (6):741-750.

Chicago/Turabian Style

Xiaolin Li; Yongxing Zhan; Lianghu Su; Yudong Chen; Mei Chen; Longjiang Zhang; Guangyin Zhen; Zhihua Han; Xiaoli Chai. 2018. "Sequestration of Sulphide from Biogas by thermal-treated iron nanoparticles synthesized using tea polyphenols." Environmental Technology 41, no. 6: 741-750.

Journal article
Published: 01 August 2018 in Chemical Engineering Journal
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Phosphate removal is an important measure required to control eutrophication of water bodies as it inhibits excessive algal growth. Currently available phosphate removal methods have various limitations and function poorly under wide pH ranges. This study successfully prepared and characterized a novel nanocomposite adsorbent, [email protected], which has high capacity and specific affinity towards phosphate. The [email protected] constituted of nanostructured hydrated ferric oxide and hydrated zirconium oxide loaded on the surface and inside the pores of a polymeric anion exchanger. Batch experiments were conducted to investigate the effects of varied conditions on phosphate adsorption. The results demonstrated that [email protected] achieved high phosphate removal efficiencies over a wide pH range (4–11), which indicates higher adaptability towards varying environmental conditions. In addition, [email protected] exhibited enhanced phosphate adsorption capacity regardless of coexisting anions (chloride, nitrate, sulfate, and carbonate) at different concentrations. Kinetic analysis suggested that the adsorption process best-fitted with the pseudo-second-order kinetic model, suggesting chemical sorption mechanism. Furthermore, the underlying mechanism of phosphate adsorption by [email protected] was assessing through XPS analysis. Phosphate removal was effected by the replacement of hydroxyl groups by phosphate species and interaction between ammonium groups and phosphate. In general, these results indicated that [email protected] is a highly efficient adsorbent for phosphate removal with excellent adaptability to varying and undesirable environmental conditions.

ACS Style

Kun Zhou; Boran Wu; Lianghu Su; Wenshu Xin; Xiaoli Chai. Enhanced phosphate removal using nanostructured hydrated ferric-zirconium binary oxide confined in a polymeric anion exchanger. Chemical Engineering Journal 2018, 345, 640 -647.

AMA Style

Kun Zhou, Boran Wu, Lianghu Su, Wenshu Xin, Xiaoli Chai. Enhanced phosphate removal using nanostructured hydrated ferric-zirconium binary oxide confined in a polymeric anion exchanger. Chemical Engineering Journal. 2018; 345 ():640-647.

Chicago/Turabian Style

Kun Zhou; Boran Wu; Lianghu Su; Wenshu Xin; Xiaoli Chai. 2018. "Enhanced phosphate removal using nanostructured hydrated ferric-zirconium binary oxide confined in a polymeric anion exchanger." Chemical Engineering Journal 345, no. : 640-647.

Journal article
Published: 01 May 2018 in Water Research
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Dewatering of waste activated sludge (WAS) is of major interest in its volume reduction, transportation and ultimate disposal. Persulfate-based oxidation process is a newly developed option for enhancing WAS dewaterability through the generation of powerful sulfate radicals (SO·). However, the enhancement in WAS dewaterability by persulfate differs with the species of iron catalysts used. In this study, two types of iron catalysts (i.e. Fe vs. Fe) were employed to initiate the persulfate (SO), and the catalyzing behaviors and the underlying principles in enhancing WAS dewaterability were investigated and compared. The Fe exhibited the high effectiveness in catalyzing the decomposition of persulfate to sulfate radicals (SO·), inducing the greater improvement in WAS dewatering. The WAS dewaterability (indicated by dry solids content after filtration) increased with the added SO/Fe dosages, with the dry solids content reaching up to 5.1 ± 0.8 wt% at SO/Fe dosages of 1.2/1.5 mmol/g-VS after only 30 s' filtration, roughly 1.8-fold increase than raw WAS (1.8 ± 0.1 wt%). In contrast, the influence of the persulfate oxidation when activated with Fe on WAS dewaterability was statistically insignificant. The WAS dewaterability remained nearly unchanged (i.e. dry solids content of 2.0 ± 0.0 wt%), irrespective of the employed SO/Fe dosages. Further analysis demonstrated that the WAS dewaterability negatively corresponded to loosely bound extracellular polymeric substances (LB-EPS) and tightly bound EPS (TB-EPS). The abundant SO· from SO/Fe system could effectively disrupt the gel-like EPS matrix, break apart the cells and subsequently arouse the release of the water inside EPS and cells, facilitating water-solid separation. In the case of SO/Fe, the dissolution of Fe particles was the rate-limiting step, due to the formation of oxide iron layer near Fe metallic surface, which resulted in the slow SO· production and thus hardly promoted WAS dewaterability. The pH adjustment could accelerate Fe dissolution and enhance the dewatering performance of SO/Fe process to a certain degree, but the effect was unsatisfactory. Additionally, the observations regarding the dissolved organic matters and ammonium collectively revealed that except for enhancing WAS dewatering, SO/Fe oxidation could concurrently degrade COD and ammonia from WAS filtrate, lighten the burden of the subsequent sewage treatment facilities and reduce operational expense. Hence, from an environmental and economic perspective, the SO/Fe system possesses much greater promise for WAS dewatering.

ACS Style

Guangyin Zhen; Xueqin Lu; Lianghu Su; Takuro Kobayashi; Gopalakrishnan Kumar; Tao Zhou; Zhu Xuefeng; Yu-You Li; Xuefeng Zhu; Youcai Zhao. Unraveling the catalyzing behaviors of different iron species (Fe2+ vs. Fe0) in activating persulfate-based oxidation process with implications to waste activated sludge dewaterability. Water Research 2018, 134, 101 -114.

AMA Style

Guangyin Zhen, Xueqin Lu, Lianghu Su, Takuro Kobayashi, Gopalakrishnan Kumar, Tao Zhou, Zhu Xuefeng, Yu-You Li, Xuefeng Zhu, Youcai Zhao. Unraveling the catalyzing behaviors of different iron species (Fe2+ vs. Fe0) in activating persulfate-based oxidation process with implications to waste activated sludge dewaterability. Water Research. 2018; 134 ():101-114.

Chicago/Turabian Style

Guangyin Zhen; Xueqin Lu; Lianghu Su; Takuro Kobayashi; Gopalakrishnan Kumar; Tao Zhou; Zhu Xuefeng; Yu-You Li; Xuefeng Zhu; Youcai Zhao. 2018. "Unraveling the catalyzing behaviors of different iron species (Fe2+ vs. Fe0) in activating persulfate-based oxidation process with implications to waste activated sludge dewaterability." Water Research 134, no. : 101-114.

Journal article
Published: 12 April 2018 in RSC Advances
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Performances of zero-valent iron nanoparticles for high-concentration H2S removal from biogas at different temperatures were evaluated.

ACS Style

Lianghu Su; Chenwei Liu; Kangkang Liang; Yudong Chen; Longjiang Zhang; Xiaolin Li; Zhihua Han; Guangyin Zhen; Xiaoli Chai; Xu Sun. Performance evaluation of zero-valent iron nanoparticles (NZVI) for high-concentration H2S removal from biogas at different temperatures. RSC Advances 2018, 8, 13798 -13805.

AMA Style

Lianghu Su, Chenwei Liu, Kangkang Liang, Yudong Chen, Longjiang Zhang, Xiaolin Li, Zhihua Han, Guangyin Zhen, Xiaoli Chai, Xu Sun. Performance evaluation of zero-valent iron nanoparticles (NZVI) for high-concentration H2S removal from biogas at different temperatures. RSC Advances. 2018; 8 (25):13798-13805.

Chicago/Turabian Style

Lianghu Su; Chenwei Liu; Kangkang Liang; Yudong Chen; Longjiang Zhang; Xiaolin Li; Zhihua Han; Guangyin Zhen; Xiaoli Chai; Xu Sun. 2018. "Performance evaluation of zero-valent iron nanoparticles (NZVI) for high-concentration H2S removal from biogas at different temperatures." RSC Advances 8, no. 25: 13798-13805.

Research article
Published: 19 March 2018 in ACS Sustainable Chemistry & Engineering
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Humic substances produced during the microbial degradation of biomolecules and should be recycled due to being an abundant source of carbon, hydrogen, oxygen, and nitrogen. Herein, the (3-aminopropyl)triethoxysilane (APTES) was first used to recover carbon-rich water-soluble humic acid (HA) from wastewater; and the operational parameters (i.e. pH, solution temperature, APTES dosage, reaction time, and initial HA concentration) were optimized for separation efficiency. The results showed that the optimal HA separation efficiency (96.7%) could be achieved at an initial HA concentration of 250 mg/L, APTES dosage 4 mL/L, equilibration time 10 min, pH 3.0, and temperature 35 °C. Furthermore, cations (Mg2+ and Ca2+ ) led to a remarkable separation of HA, while anions (CO32- and SO42-) weakened the aggregation and deposition of HA. Mechanism analysis unveiled that ladder-like oligomeric aminosilanes (LAOAs) was generated by the hydrolysis, condensation, and self-assembly of APTES. The LAOAs was involved in adsorption bridging action with HA, thus efficiently promoting the precipitation of humic substances. The described carbon separation technique (converting dissolved matter into insoluble substances) can be a promising option for the efficient recovery and reutilization of carbon resources in high-concentration organic wastewater.

ACS Style

Tao Zhou; Sheng Huang; Dongjie Niu; Lianghu Su; Guangyin Zhen; Youcai Zhao. Efficient Separation of Water-Soluble Humic Acid Using (3-Aminopropyl)triethoxysilane (APTES) for Carbon Resource Recovery from Wastewater. ACS Sustainable Chemistry & Engineering 2018, 6, 5981 -5989.

AMA Style

Tao Zhou, Sheng Huang, Dongjie Niu, Lianghu Su, Guangyin Zhen, Youcai Zhao. Efficient Separation of Water-Soluble Humic Acid Using (3-Aminopropyl)triethoxysilane (APTES) for Carbon Resource Recovery from Wastewater. ACS Sustainable Chemistry & Engineering. 2018; 6 (5):5981-5989.

Chicago/Turabian Style

Tao Zhou; Sheng Huang; Dongjie Niu; Lianghu Su; Guangyin Zhen; Youcai Zhao. 2018. "Efficient Separation of Water-Soluble Humic Acid Using (3-Aminopropyl)triethoxysilane (APTES) for Carbon Resource Recovery from Wastewater." ACS Sustainable Chemistry & Engineering 6, no. 5: 5981-5989.

Journal article
Published: 01 March 2018 in Chemical Engineering Journal
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ACS Style

Boran Wu; Lianghu Su; Xiaohu Dai; Xiaoli Chai. Development of sludge-derived mesoporous material with loaded nano CaO2 and doped Fe for re-utilization of dewatered waste-activated sludge as dewatering aids. Chemical Engineering Journal 2018, 335, 161 -168.

AMA Style

Boran Wu, Lianghu Su, Xiaohu Dai, Xiaoli Chai. Development of sludge-derived mesoporous material with loaded nano CaO2 and doped Fe for re-utilization of dewatered waste-activated sludge as dewatering aids. Chemical Engineering Journal. 2018; 335 ():161-168.

Chicago/Turabian Style

Boran Wu; Lianghu Su; Xiaohu Dai; Xiaoli Chai. 2018. "Development of sludge-derived mesoporous material with loaded nano CaO2 and doped Fe for re-utilization of dewatered waste-activated sludge as dewatering aids." Chemical Engineering Journal 335, no. : 161-168.

Journal article
Published: 01 November 2017 in Chemical Engineering Journal
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ACS Style

Kun Zhou; Boran Wu; Lianghu Su; Xiaofeng Gao; Xiaoli Chai; Xiaohu Dai. Development of nano-CaO2-coated clinoptilolite for enhanced phosphorus adsorption and simultaneous removal of COD and nitrogen from sewage. Chemical Engineering Journal 2017, 328, 35 -43.

AMA Style

Kun Zhou, Boran Wu, Lianghu Su, Xiaofeng Gao, Xiaoli Chai, Xiaohu Dai. Development of nano-CaO2-coated clinoptilolite for enhanced phosphorus adsorption and simultaneous removal of COD and nitrogen from sewage. Chemical Engineering Journal. 2017; 328 ():35-43.

Chicago/Turabian Style

Kun Zhou; Boran Wu; Lianghu Su; Xiaofeng Gao; Xiaoli Chai; Xiaohu Dai. 2017. "Development of nano-CaO2-coated clinoptilolite for enhanced phosphorus adsorption and simultaneous removal of COD and nitrogen from sewage." Chemical Engineering Journal 328, no. : 35-43.

Journal article
Published: 01 August 2017 in Chemosphere
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The dispersion of granules in upflow anaerobic sludge blanket (UASB) reactor represents a critical technical issue in methanolic wastewater treatment. In this study, the potentials of coupling a microbial electrolysis cell (MEC) into an UASB reactor for improving methanolic wastewater biodegradation, long-term process stability and biomethane recovery were evaluated. The results indicated that coupling a MEC system was capable of improving the overall performance of UASB reactor for methanolic wastewater treatment. The combined system maintained the comparatively higher methane yield and COD removal efficiency over the single UASB process through the entire process, with the methane production at the steady-state conditions approaching 1504.7 ± 92.2 mL-CH L-reactor d, around 10.1% higher than the control UASB (i.e. 1366.4 ± 71.0 mL-CH L-reactor d). The further characterizations verified that the input of external power source could stimulate the metabolic activity of microbes and reinforced the EPS secretion. The produced EPS interacted with Fe liberated during anodic corrosion of iron electrode to create a gel-like three-dimensional [-Fe-EPS-] matrix, which promoted cell-cell cohesion and maintained the structural integrity of granules. Further observations via SEM and FISH analysis demonstrated that the use of bioelectrochemical stimulation promoted the growth and proliferation of microorganisms, which diversified the degradation routes of methanol, convert the wasted CO into methane and accordingly increased the process stability and methane productivity.

ACS Style

Guangyin Zhen; Xueqin Lu; Takuro Kobayashi; Lianghu Su; Gopalakrishnan Kumar; Péter Bakonyi; Yan He; Periyasamy Sivagurunathan; Nandor Nemestothy; Kaiqin Xu; Youcai Zhao. Continuous micro-current stimulation to upgrade methanolic wastewater biodegradation and biomethane recovery in an upflow anaerobic sludge blanket (UASB) reactor. Chemosphere 2017, 180, 229 -238.

AMA Style

Guangyin Zhen, Xueqin Lu, Takuro Kobayashi, Lianghu Su, Gopalakrishnan Kumar, Péter Bakonyi, Yan He, Periyasamy Sivagurunathan, Nandor Nemestothy, Kaiqin Xu, Youcai Zhao. Continuous micro-current stimulation to upgrade methanolic wastewater biodegradation and biomethane recovery in an upflow anaerobic sludge blanket (UASB) reactor. Chemosphere. 2017; 180 ():229-238.

Chicago/Turabian Style

Guangyin Zhen; Xueqin Lu; Takuro Kobayashi; Lianghu Su; Gopalakrishnan Kumar; Péter Bakonyi; Yan He; Periyasamy Sivagurunathan; Nandor Nemestothy; Kaiqin Xu; Youcai Zhao. 2017. "Continuous micro-current stimulation to upgrade methanolic wastewater biodegradation and biomethane recovery in an upflow anaerobic sludge blanket (UASB) reactor." Chemosphere 180, no. : 229-238.

Journal article
Published: 01 May 2017 in Chemosphere
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In this work, the performance of dual-chamber microbial fuel cells (MFCs) constructed either with commonly used Nafion proton exchange membrane or supported ionic liquid membranes (SILMs) was assessed. The behavior of MFCs was followed and analyzed by taking the polarization curves and besides, their efficiency was characterized by measuring the electricity generation using various substrates such as acetate and glucose. By using the SILMs containing either [Cmim][PF] or [Bmim][NTf] ionic liquids, the energy production of these MFCs from glucose was comparable to that obtained with the MFC employing polymeric Nafion and the same substrate. Furthermore, the MFC operated with [Bmim][NTf]-based SILM demonstrated higher energy yield in case of low acetate loading (80.1 J g COD m h) than the one with the polymeric Nafion N115 (59 J g COD m h). Significant difference was observed between the two SILM-MFCs, however, the characteristics of the system was similar based on the cell polarization measurements. The results suggest that membrane-engineering applying ionic liquids can be an interesting subject field for bioelectrochemical system research.

ACS Style

László Koók; Nandor Nemestothy; Péter Bakonyi; Guangyin Zhen; Gopalakrishnan Kumar; Xueqin Lu; Lianghu Su; Ganesh Dattatraya Saratale; Sang-Hyoun Kim; László Gubicza. Performance evaluation of microbial electrochemical systems operated with Nafion and supported ionic liquid membranes. Chemosphere 2017, 175, 350 -355.

AMA Style

László Koók, Nandor Nemestothy, Péter Bakonyi, Guangyin Zhen, Gopalakrishnan Kumar, Xueqin Lu, Lianghu Su, Ganesh Dattatraya Saratale, Sang-Hyoun Kim, László Gubicza. Performance evaluation of microbial electrochemical systems operated with Nafion and supported ionic liquid membranes. Chemosphere. 2017; 175 ():350-355.

Chicago/Turabian Style

László Koók; Nandor Nemestothy; Péter Bakonyi; Guangyin Zhen; Gopalakrishnan Kumar; Xueqin Lu; Lianghu Su; Ganesh Dattatraya Saratale; Sang-Hyoun Kim; László Gubicza. 2017. "Performance evaluation of microbial electrochemical systems operated with Nafion and supported ionic liquid membranes." Chemosphere 175, no. : 350-355.

Journal article
Published: 01 February 2017 in Bioresource Technology
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To characterize the transformation of extracellular proteins extracted from raw and enzyme-disintegrated waste activated sludge (WAS), extracts of extracellular polymeric substances (EPS) were subject to isobaric tags for relative and absolute quantitation (iTRAQ) proteomics analysis. 209 proteins were identified and categorized into three Gene Ontology classifications: "cellular components", "molecular function", and "biological processes". Most identified proteins originated from intracellular components, organelles, or cytoplasm, suggesting that cell decline and lysis represent the main sources of extracellular proteins in WAS. The major protein functions comprised "transporter binding activity", "macromolecule metabolic process", and "biosynthesis enzyme catalytic activity". In total, 15 proteins categorized as "membrane part" and "biological adhesion" and 10 as "organelle" were down- or up-regulated, respectively, implying that the enzyme-disintegration mainly induced WAS floc-structure disintegration via membrane structure and corresponding biological adhesion disruption. The proteomics study will provide valuable clues to better understand EPS changes associated with enzymatic treatment at molecular levels.

ACS Style

Boran Wu; Lianghu Su; Liyan Song; Xiaohu Dai; Xiaoli Chai. Exploring the potential of iTRAQ proteomics for tracking the transformation of extracellular proteins from enzyme-disintegrated waste activated sludge. Bioresource Technology 2017, 225, 75 -83.

AMA Style

Boran Wu, Lianghu Su, Liyan Song, Xiaohu Dai, Xiaoli Chai. Exploring the potential of iTRAQ proteomics for tracking the transformation of extracellular proteins from enzyme-disintegrated waste activated sludge. Bioresource Technology. 2017; 225 ():75-83.

Chicago/Turabian Style

Boran Wu; Lianghu Su; Liyan Song; Xiaohu Dai; Xiaoli Chai. 2017. "Exploring the potential of iTRAQ proteomics for tracking the transformation of extracellular proteins from enzyme-disintegrated waste activated sludge." Bioresource Technology 225, no. : 75-83.

Journal article
Published: 01 January 2017 in Chemical Engineering Journal
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ACS Style

Boran Wu; Lianghu Su; Xiaohu Dai; Xiaoli Chai. Development of montmorillonite-supported nano CaO2 for enhanced dewatering of waste-activated sludge by synergistic effects of filtration aid and peroxidation. Chemical Engineering Journal 2017, 307, 418 -426.

AMA Style

Boran Wu, Lianghu Su, Xiaohu Dai, Xiaoli Chai. Development of montmorillonite-supported nano CaO2 for enhanced dewatering of waste-activated sludge by synergistic effects of filtration aid and peroxidation. Chemical Engineering Journal. 2017; 307 ():418-426.

Chicago/Turabian Style

Boran Wu; Lianghu Su; Xiaohu Dai; Xiaoli Chai. 2017. "Development of montmorillonite-supported nano CaO2 for enhanced dewatering of waste-activated sludge by synergistic effects of filtration aid and peroxidation." Chemical Engineering Journal 307, no. : 418-426.

Journals
Published: 15 January 2016 in RSC Advances
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Shaped insoluble PLA/P(3HB-co-4HB) blends were applied as slow-release carbon sources to promote the removal of nutrients and facilitate the control of eutrophication in lake water.

ACS Style

Jingjing Mai; Xiaoli Chai; Lianghu Su; Qiang Li; Xin Zhao. Enhanced nutrient removal from lake water via biodegradation of poly(l-lactide)/poly(3-hydroxybutyrate-co-4-hydroxybutyrate) blends. RSC Advances 2016, 6, 6528 -6539.

AMA Style

Jingjing Mai, Xiaoli Chai, Lianghu Su, Qiang Li, Xin Zhao. Enhanced nutrient removal from lake water via biodegradation of poly(l-lactide)/poly(3-hydroxybutyrate-co-4-hydroxybutyrate) blends. RSC Advances. 2016; 6 (8):6528-6539.

Chicago/Turabian Style

Jingjing Mai; Xiaoli Chai; Lianghu Su; Qiang Li; Xin Zhao. 2016. "Enhanced nutrient removal from lake water via biodegradation of poly(l-lactide)/poly(3-hydroxybutyrate-co-4-hydroxybutyrate) blends." RSC Advances 6, no. 8: 6528-6539.

Journals
Published: 11 November 2015 in Environmental Science: Processes & Impacts
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The long-term effects of NZVI on hydrogen sulphide removal in an anaerobic sludge digester were investigated.

ACS Style

Lianghu Su; Guangyin Zhen; Longjiang Zhang; Youcai Zhao; Dongjie Niu; Xiaoli Chai. The use of the core–shell structure of zero-valent iron nanoparticles (NZVI) for long-term removal of sulphide in sludge during anaerobic digestion. Environmental Science: Processes & Impacts 2015, 17, 2013 -2021.

AMA Style

Lianghu Su, Guangyin Zhen, Longjiang Zhang, Youcai Zhao, Dongjie Niu, Xiaoli Chai. The use of the core–shell structure of zero-valent iron nanoparticles (NZVI) for long-term removal of sulphide in sludge during anaerobic digestion. Environmental Science: Processes & Impacts. 2015; 17 (12):2013-2021.

Chicago/Turabian Style

Lianghu Su; Guangyin Zhen; Longjiang Zhang; Youcai Zhao; Dongjie Niu; Xiaoli Chai. 2015. "The use of the core–shell structure of zero-valent iron nanoparticles (NZVI) for long-term removal of sulphide in sludge during anaerobic digestion." Environmental Science: Processes & Impacts 17, no. 12: 2013-2021.

Journal article
Published: 01 November 2013 in Chemical Engineering Journal
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ACS Style

Guangyin Zhen; Xueqin Lu; Jing Niu; Lianghu Su; Xiaoli Chai; Youcai Zhao; Yu-You Li; Yu Song; Dongjie Niu. Inhibitory effects of a shock load of Fe(II)-mediated persulfate oxidation on waste activated sludge anaerobic digestion. Chemical Engineering Journal 2013, 233, 274 -281.

AMA Style

Guangyin Zhen, Xueqin Lu, Jing Niu, Lianghu Su, Xiaoli Chai, Youcai Zhao, Yu-You Li, Yu Song, Dongjie Niu. Inhibitory effects of a shock load of Fe(II)-mediated persulfate oxidation on waste activated sludge anaerobic digestion. Chemical Engineering Journal. 2013; 233 ():274-281.

Chicago/Turabian Style

Guangyin Zhen; Xueqin Lu; Jing Niu; Lianghu Su; Xiaoli Chai; Youcai Zhao; Yu-You Li; Yu Song; Dongjie Niu. 2013. "Inhibitory effects of a shock load of Fe(II)-mediated persulfate oxidation on waste activated sludge anaerobic digestion." Chemical Engineering Journal 233, no. : 274-281.

Evaluation study
Published: 01 November 2013 in Journal of Environmental Management
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Potential reuse of dewatered sludge (DS) and municipal solid waste incineration (MSWI) bottom ash as components to develop controlled low-strength material (CLSM) was explored. The effects of DS:MSWI bottom ash:calcium sulfoaluminate (CS¯A) cement ratio and thermal treatment of MSWI bottom ash at 900 °C on the mechanical and microstructural properties of CLSM were intensively studied to optimize the process. Results showed DS and MSWI bottom ash could be utilized for making CLSM. The CLSM prepared with milled MSWI bottom ash gave higher unconfined compressive strength (UCS) of 2.0-6.2 MPa following 1 year of curing at 1.0:0.1:0.9 ≤ DS:MSWI bottom ash:CS¯A ≤ 1.0:0.8:0.2. However, the corresponding strengths for CLSM containing thermally treated MSWI bottom ash ranged from 0.7 to 4.6 MPa, decreasing 26-65%. The microstructural analysis by X-ray powder diffraction (XRD), Fourier transforms infrared spectroscopy (FT-IR), as well as scanning electron microscopy (SEM) combined with an energy dispersive X-ray spectroscopy (EDS) revealed that ettringite (C3A·3CS¯·H32, or AFt) crystals were the most important strength-producing constituents which grew into and filled the CLSM matrix pores. Milled MSWI bottom ash addition favored the formation of highly crystalline AFt phases and accordingly enhanced compressive strengths of CLSM specimens. In contrast, thermal treatment at 900 °C produced new phases such as gehlenite (Ca2Al2SiO7) and hydroxylapatite (Ca5(PO4)3(OH)), which deteriorated the pozzolanic activity of bottom ash and caused the strengths to decrease. Leaching tests evidenced that leachable substances from CLSM samples exhibited negligible health and environmental risks. The results of this study suggested that MSWI bottom ash can be effectively recycled together with DS in developing CLSM mixtures with restricted use of CS¯A cement.

ACS Style

Guangyin Zhen; Xueqin Lu; Youcai Zhao; Jing Niu; Xiaoli Chai; Lianghu Su; Yu-You Li; Yuan Liu; Jingru Du; Toshimasa Hojo; Yong Hu. Characterization of controlled low-strength material obtained from dewatered sludge and refuse incineration bottom ash: Mechanical and microstructural perspectives. Journal of Environmental Management 2013, 129, 183 -189.

AMA Style

Guangyin Zhen, Xueqin Lu, Youcai Zhao, Jing Niu, Xiaoli Chai, Lianghu Su, Yu-You Li, Yuan Liu, Jingru Du, Toshimasa Hojo, Yong Hu. Characterization of controlled low-strength material obtained from dewatered sludge and refuse incineration bottom ash: Mechanical and microstructural perspectives. Journal of Environmental Management. 2013; 129 ():183-189.

Chicago/Turabian Style

Guangyin Zhen; Xueqin Lu; Youcai Zhao; Jing Niu; Xiaoli Chai; Lianghu Su; Yu-You Li; Yuan Liu; Jingru Du; Toshimasa Hojo; Yong Hu. 2013. "Characterization of controlled low-strength material obtained from dewatered sludge and refuse incineration bottom ash: Mechanical and microstructural perspectives." Journal of Environmental Management 129, no. : 183-189.

Journal article
Published: 20 June 2013 in Journal of Material Cycles and Waste Management
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The potential benefits of nanoscale zero-valent iron (nZVI) on sludge stabilization, either the abatement of odor or the improvement of biogas production, were investigated in this study. Two commercial-grade microscale iron powders were also utilized for comparison. Adding 0.10 wt% of nZVI in sludge during anaerobic incubation significantly reduced the concentration of H2S in biogas by 98.0 % (96.2–98.9 %), probably attributed by reactions between sulfides and the neo-formed hydrous Fe(II)/Fe(III) oxides layer at the surface of ZVI nanoparticles. Meanwhile, the percentage of P in bioavailable fractions decreased from 76.8 to 52.5 %, possibly due to the formation of vivianite [Fe3(PO4)2]. Furthermore, 0.10 wt% of nZVI in anaerobic digestion for 17 days enhanced the concentration of CH4 in biogas by 5.1–13.2 % and improved the production of biogas and methane by 30.4 and 40.4 %, respectively. The amendment of iron nanoparticles during anaerobic digestion can not only effectively reduce H2S in biogas, but also potentially boost methane production significantly.

ACS Style

Lianghu Su; Xinlong Shi; Guangzhai Guo; Aihua Zhao; Youcai Zhao. Stabilization of sewage sludge in the presence of nanoscale zero-valent iron (nZVI): abatement of odor and improvement of biogas production. Journal of Material Cycles and Waste Management 2013, 15, 461 -468.

AMA Style

Lianghu Su, Xinlong Shi, Guangzhai Guo, Aihua Zhao, Youcai Zhao. Stabilization of sewage sludge in the presence of nanoscale zero-valent iron (nZVI): abatement of odor and improvement of biogas production. Journal of Material Cycles and Waste Management. 2013; 15 (4):461-468.

Chicago/Turabian Style

Lianghu Su; Xinlong Shi; Guangzhai Guo; Aihua Zhao; Youcai Zhao. 2013. "Stabilization of sewage sludge in the presence of nanoscale zero-valent iron (nZVI): abatement of odor and improvement of biogas production." Journal of Material Cycles and Waste Management 15, no. 4: 461-468.

Journal article
Published: 01 June 2013 in Waste Management
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Co-disposal of refuse with municipal solid waste incinerator (MSWI) bottom ash (IBA) either multi-layered as landfill cover or mixed with refuse could pose additional risk to the environment because of enhanced leaching of heavy metals, especially Cu. This study applied short-term accelerated weathering to IBA, and monitored the mineralogical and chemical properties of IBA during the weathering process. Cu extractability of the weathered IBA was then evaluated using standard leaching protocols (i.e. SPLP and TCLP) and co-disposal leaching procedure. The results showed that weathering had little or no beneficial effect on Cu leaching in SPLP and TCLP, which can be explained by the adsorption and complexation of Cu with DOM. However, the Cu leaching of weathered IBA was reduced significantly when situated in fresh simulated landfill leachate. This was attributed to weakening Cu complexation with fulvic acid or hydrophilic fractions and/or intensifying Cu absorption to neoformed hydr(oxide) minerals in weathered IBA. The amount of total leaching Cu and Cu in free or labile complex fraction (the fraction with the highest mobility and bio-toxicity) of the 408-h weathered IBA were remarkably decreased by 86.3% and 97.6% in the 15-day co-disposal leaching test. Accelerated weathering of IBA may be an effective pretreatment method to decrease Cu leaching prior to its co-disposal with refuse.

ACS Style

Lianghu Su; Guangzhai Guo; Xinlong Shi; Minyu Zuo; Dongjie Niu; Aihua Zhao; Youcai Zhao. Copper leaching of MSWI bottom ash co-disposed with refuse: Effect of short-term accelerated weathering. Waste Management 2013, 33, 1411 -1417.

AMA Style

Lianghu Su, Guangzhai Guo, Xinlong Shi, Minyu Zuo, Dongjie Niu, Aihua Zhao, Youcai Zhao. Copper leaching of MSWI bottom ash co-disposed with refuse: Effect of short-term accelerated weathering. Waste Management. 2013; 33 (6):1411-1417.

Chicago/Turabian Style

Lianghu Su; Guangzhai Guo; Xinlong Shi; Minyu Zuo; Dongjie Niu; Aihua Zhao; Youcai Zhao. 2013. "Copper leaching of MSWI bottom ash co-disposed with refuse: Effect of short-term accelerated weathering." Waste Management 33, no. 6: 1411-1417.