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The accumulation of floatable litter load captured in gross pollutant trap (GPT) due to the hydrological runoff has become challenging due to rapid development and alteration of land use changes. The application of soil conservation service curve number (SCS-CN) method has been widely used to estimate the direct runoff from the given rainfall especially when there is no runoff measured within the catchment. The results found that there was enormous variation on floatable litter load between different months and individual GPT. There was a high accumulation of floatable litter load on August 2015 with 495 kg/month and at K17 with 510 kg. Both of these conditions was significantly influenced by rainfall depth, hydrological parameters such as initial abstraction, potential maximum retention, and average weighted curve number (CNaw) values from different types of land use within their respective catchment area for individual GPT. Thus, the outcomes from this study can be very useful and beneficial for related government agencies and various stakeholders in ameliorating this critical and challenging environmental issue in terms of operation and management; technical operation; the selection of GPT prior to installation in other areas including the design, costs and maintenance.
Nur Khaliesah Abdul Malik; Latifah Abd Manaf; Nor Rohaizah Jamil; Mohd Hafiz Rosli; Zulfa Hanan Ash’Aari; Mohamad Al-Ekhwan Othman. Influence of hydrological runoff and catchment characteristics on accumulation floatable litter load in gross pollutant trap (GPT). Journal of Material Cycles and Waste Management 2021, 23, 1289 -1302.
AMA StyleNur Khaliesah Abdul Malik, Latifah Abd Manaf, Nor Rohaizah Jamil, Mohd Hafiz Rosli, Zulfa Hanan Ash’Aari, Mohamad Al-Ekhwan Othman. Influence of hydrological runoff and catchment characteristics on accumulation floatable litter load in gross pollutant trap (GPT). Journal of Material Cycles and Waste Management. 2021; 23 (4):1289-1302.
Chicago/Turabian StyleNur Khaliesah Abdul Malik; Latifah Abd Manaf; Nor Rohaizah Jamil; Mohd Hafiz Rosli; Zulfa Hanan Ash’Aari; Mohamad Al-Ekhwan Othman. 2021. "Influence of hydrological runoff and catchment characteristics on accumulation floatable litter load in gross pollutant trap (GPT)." Journal of Material Cycles and Waste Management 23, no. 4: 1289-1302.
While the total amount of municipal solid waste (MSW) in Dammam city was about 13 million tons in 2013, it is expected to reach about 18.4 million tons in 2025. Although the main problem in Dammam city is an increase in solid waste production without any formal treatment except landfilling, the lack of waste segregation greatly affects the residents’ handling practices of solid waste due to incorrect disposing practices. The objective of this study explored the possibility of Dammam residents’ participation in sorting and recycling to improve MSW handling and to measure the influence of psychological factors which affecting residents’ willingness to participate in waste handling regarding socioeconomic levels and moderating effects. This study also examined various respondents’ perspectives on sorting and recycling sustainable waste and the handling of waste generation. This study covered most Dammam communities, with a gender distribution of 56% males and 44% females and the monthly income ranging from SR700 to SR12,000. The descriptive analysis showed that of the 450 participants, 170 (37.8%) were in the middle-income levels, 199 (44.2%) were in the high-income levels and 81 (18%) were in the low-income levels. The moderating effect of income was observed between attitude and willingness to sort and recycle waste in the low-income levels and high-income levels groups. Additionally, an association was found between market incentives and willingness to sort and recycle waste in the low-income levels and high-income levels groups. The gender status of the participants had a moderating effect on the relationship between market incentives and willingness to sort and recycle waste in males and females. Additionally, the moderating effect of social influence on households’ willingness to sort and recycle waste was moderated by gender in males and females.
Ossama Labib; Latifah Manaf; Amir Sharaai; Siti Zaid. Moderating Effects on Residents’ Willingness in Waste Sorting to Improve Waste Handling in Dammam City, Saudi Arabia. Recycling 2021, 6, 24 .
AMA StyleOssama Labib, Latifah Manaf, Amir Sharaai, Siti Zaid. Moderating Effects on Residents’ Willingness in Waste Sorting to Improve Waste Handling in Dammam City, Saudi Arabia. Recycling. 2021; 6 (2):24.
Chicago/Turabian StyleOssama Labib; Latifah Manaf; Amir Sharaai; Siti Zaid. 2021. "Moderating Effects on Residents’ Willingness in Waste Sorting to Improve Waste Handling in Dammam City, Saudi Arabia." Recycling 6, no. 2: 24.
Urbanization is a pressing issue of concern especially in Africa where it is expected to continue and increasingly, threaten the efficiency of natural carbon sinks and sustainability of cities. This paper assessed the diversity and carbon storage of trees in Zaria metropolis, North-western Nigeria through fieldwork and allometric equations. A total of 200 assessment plots were randomly generated using Idrisi Terrset software. Quadrats of 30 × 30 m dimension were established and all trees, ≥5 cm diameter were identified and enumerated. Diameter was measured at breast height while tree height was measured with Suunto clinometer. The study recorded 836 stems, belonging to 51 species in 21 families. Species diversity and evenness were considerably high (H’ = 3.30, J = 0.8) with more exotic than native stems. The trees stored 657.05t carbon with the highest proportion contributed by Azadirachta indica, Mangifera indica and Khaya senegalensis. One-way ANOVA revealed significant difference in tree diameter (p < 0.020), basal area (p < 0.008) and height (p < 0.001) across the different land use/cover types but no significant difference in carbon stock (p > 0.657). This study demonstrates the contribution of urban trees in reducing global atmospheric carbon which largely varies with tree species and diameter.
Murtala Dangulla; Latifah Abd Manaf; Mohammad Firuz Ramli; Mohd Rusli Yacob; Sanusi Namadi. Exploring urban tree diversity and carbon stocks in Zaria Metropolis, North Western Nigeria. Applied Geography 2021, 127, 102385 .
AMA StyleMurtala Dangulla, Latifah Abd Manaf, Mohammad Firuz Ramli, Mohd Rusli Yacob, Sanusi Namadi. Exploring urban tree diversity and carbon stocks in Zaria Metropolis, North Western Nigeria. Applied Geography. 2021; 127 ():102385.
Chicago/Turabian StyleMurtala Dangulla; Latifah Abd Manaf; Mohammad Firuz Ramli; Mohd Rusli Yacob; Sanusi Namadi. 2021. "Exploring urban tree diversity and carbon stocks in Zaria Metropolis, North Western Nigeria." Applied Geography 127, no. : 102385.
The outbreak of a neurological disorder was first discovered as a new coronavirus (2019-nCoV) in Wuhan, China. The infection spread rapidly in China and throughout the world, including Malaysia. Malaysia recorded its initial case on 25 January 2020 with intensifying numbers since March 2020. Due to this uncertain circumstance, Malaysia has introduced the Movement Control Order (MCO) with the main aim of isolating the source of the COVID-19 outbreak, which was effective from 18 March 2020. The restriction has observed fewer vehicles on the road with industrial and commercial activities being suspended. The objective of the study is to quantify the effects of MCO to food waste generation in town and district areas of Klang Valley, Malaysia. Food waste generation data was derived from the Project Delivery Department, KDEB Waste Management on a daily basis before (19 February–17 March 2020) and during the MCO (18 March–14 April 2020) at 12 local authorities in Selangor, Malaysia. The data was obtained with the limitation of assumption that there is no waste compositional analysis to be conducted in 2020. Despite the stay-at-home order, food waste data showed a descriptive reduction of up to 15.1% during the MCO. Statistical analysis of food waste generation from one-way variance has shown that municipal and district local authorities recorded a significant reduction (p < 0.50) during the MCO. The food waste reduction during the MCO will deliver as the evidence-based results to push the need for policies in Malaysia as per the goals outlined in Sustainable Development Goals of global food loss and waste.
Muhammad Heikal Ismail; Tinia Ghazi; Muhammad Hamzah; Latifah Manaf; Ramli Tahir; Ahadi Mohd Nasir; Ammar Ehsan Omar. Impact of Movement Control Order (MCO) due to Coronavirus Disease (COVID-19) on Food Waste Generation: A Case Study in Klang Valley, Malaysia. Sustainability 2020, 12, 8848 .
AMA StyleMuhammad Heikal Ismail, Tinia Ghazi, Muhammad Hamzah, Latifah Manaf, Ramli Tahir, Ahadi Mohd Nasir, Ammar Ehsan Omar. Impact of Movement Control Order (MCO) due to Coronavirus Disease (COVID-19) on Food Waste Generation: A Case Study in Klang Valley, Malaysia. Sustainability. 2020; 12 (21):8848.
Chicago/Turabian StyleMuhammad Heikal Ismail; Tinia Ghazi; Muhammad Hamzah; Latifah Manaf; Ramli Tahir; Ahadi Mohd Nasir; Ammar Ehsan Omar. 2020. "Impact of Movement Control Order (MCO) due to Coronavirus Disease (COVID-19) on Food Waste Generation: A Case Study in Klang Valley, Malaysia." Sustainability 12, no. 21: 8848.
This study developed hybrid briquettes using corncobs and the bark of oil palm trunk (OPTB). The objective was to assess the performance of the briquettes in a cooking application as a potential fuel source for domestic utilization. Corncob was mixed with OPTB in ratios of 100:0, 75:25, 50:50, 25:75 and 0:100 by weight, and wastepaper pulp (10% by weight) was added to each mixture as the binder. The mixtures were densified manually at room temperature using a 20-tonne hydraulic piston press under a ≤7 MPa compaction pressure. The calorific value of the briquettes was determined by a bomb calorimeter, while other fuel properties were determined by proximate and ultimate analysis. The briquettes’ performance was evaluated by a water boiling test, and gaseous emission was determined and reported based carbon-dioxide equivalent (CO2e). Results showed that the volatile matter, ash content, and calorific value increased with the increase in OPTB in the ratios while fixed carbon decreased. Additionally, briquettes produced from ratios 50:50 and 25:75 were similar in values based on the total time taken to ignite briquettes and boil 1 L of water (17.54 min and 17.13 min), fuel burning rate (0.69 kg/h and 0.70 kg/h) and specific fuel consumption (0.16 kg/l and 0.15 kg/l). However, ratio 50:50 performed better in terms of thermal fuel efficiency (17.25%) and produced less ash during combustion and thus, is considered the optimum combination. Greenhouse gas emission of all briquettes ranged from 241 to 281 gCO2e. The results suggest the possibility of producing briquettes with adequate fuel properties for combustion from a blend of corncobs and OPTB. The calorific value and performance of the hybrid briquettes have confirmed and justified the use of OPTB, which have previously not been used for briquette production, thus making a novel contribution to biomass options. The study shows a means of reducing waste, energy shortages, and indoor air pollution in rural communities in Nigeria. Overall, the hybrid briquettes are sustainable, environmentally friendly and cost-efficient compared to fossil fuels.
Sunday Yusuf Kpalo; Mohamad Faiz Zainuddin; Latifah Abd Manaf; Ahmad Muhaimin Roslan. Evaluation of hybrid briquettes from corncob and oil palm trunk bark in a domestic cooking application for rural communities in Nigeria. Journal of Cleaner Production 2020, 284, 124745 .
AMA StyleSunday Yusuf Kpalo, Mohamad Faiz Zainuddin, Latifah Abd Manaf, Ahmad Muhaimin Roslan. Evaluation of hybrid briquettes from corncob and oil palm trunk bark in a domestic cooking application for rural communities in Nigeria. Journal of Cleaner Production. 2020; 284 ():124745.
Chicago/Turabian StyleSunday Yusuf Kpalo; Mohamad Faiz Zainuddin; Latifah Abd Manaf; Ahmad Muhaimin Roslan. 2020. "Evaluation of hybrid briquettes from corncob and oil palm trunk bark in a domestic cooking application for rural communities in Nigeria." Journal of Cleaner Production 284, no. : 124745.
Hydrological runoff impacts on the accumulation of floatable litter in river system have not been extensively studied in Malaysia. Thus, the aim of this paper was to identify the variation on the accumulation of floatable litter load and its composition at floating debris boom (FDB) structure through the process of hydrological runoff. 14 days of passive sampling was performed periodically using the bucket conveyer machine. The rainfall event prior to the sampling date was used in Soil Conservation Service curve number (SCS-CN) method to generate the runoff volume. The results revealed that the highest accumulation of floatable litter load was 4654.60 kg/day during the first sampling. The plastic and organic waste load were recorded as the highest composition load with 881.50 kg/day during first sampling and 501.00 kg/day during second sampling, respectively. The floatable litter transport was demonstrated through the relationship between cumulative floatable litter loads and cumulative hydrological runoff during the first sampling with R2 = 0.9572, r = 0.978 (p < 0.01); and second sampling with R2 = 0.9806, r = 0.990 (p < 0.01). Such data will contribute to knowledge and serve as baseline data information for the relevant agencies in ameliorating this environmental issue in long term planning.
Nur Khaliesah Abdul Malik; Latifah Abd Manaf; Nor Rohaizah Jamil; Mohd Hafiz Rosli; Zulfa Hanan Ash’Aari; Amy Syafinaz Mohamad Adhar. Variation of floatable litter load and its compositions captured at floating debris boom (FDB) structure. Journal of Material Cycles and Waste Management 2020, 22, 1744 -1767.
AMA StyleNur Khaliesah Abdul Malik, Latifah Abd Manaf, Nor Rohaizah Jamil, Mohd Hafiz Rosli, Zulfa Hanan Ash’Aari, Amy Syafinaz Mohamad Adhar. Variation of floatable litter load and its compositions captured at floating debris boom (FDB) structure. Journal of Material Cycles and Waste Management. 2020; 22 (6):1744-1767.
Chicago/Turabian StyleNur Khaliesah Abdul Malik; Latifah Abd Manaf; Nor Rohaizah Jamil; Mohd Hafiz Rosli; Zulfa Hanan Ash’Aari; Amy Syafinaz Mohamad Adhar. 2020. "Variation of floatable litter load and its compositions captured at floating debris boom (FDB) structure." Journal of Material Cycles and Waste Management 22, no. 6: 1744-1767.
Growing global demand and utilization of fossil fuels has elevated wealth creation, increased adverse impacts of climate change from greenhouse gases (GHGs) emissions, and endangered public health. In most developing countries, biomass wastes, which include but are not limited to agricultural residues, are produced in large quantities annually. They are either inefficiently used or disposed of indiscriminately, which threatens the environment. It is possible to convert these wastes, through densification, into high-density and energy-efficient briquettes. Densification of biomass into briquettes presents a renewable energy option as an alternative to fossil fuels. This paper reviews biomass briquetting with reference to biomass resources, feedstock pre-processing, briquetting process parameters, briquetting technology, and briquettes quality evaluation parameters. The review also includes the economic aspect of briquetting relating to costs and feasibility.
Sunday Yusuf Kpalo; Mohamad Faiz Zainuddin; Latifah Abd Manaf; Ahmad Muhaimin Roslan. A Review of Technical and Economic Aspects of Biomass Briquetting. Sustainability 2020, 12, 4609 .
AMA StyleSunday Yusuf Kpalo, Mohamad Faiz Zainuddin, Latifah Abd Manaf, Ahmad Muhaimin Roslan. A Review of Technical and Economic Aspects of Biomass Briquetting. Sustainability. 2020; 12 (11):4609.
Chicago/Turabian StyleSunday Yusuf Kpalo; Mohamad Faiz Zainuddin; Latifah Abd Manaf; Ahmad Muhaimin Roslan. 2020. "A Review of Technical and Economic Aspects of Biomass Briquetting." Sustainability 12, no. 11: 4609.
The objective of this research was to investigate the quality of hybrid briquettes developed from corncobs (CC) and oil palm trunk bark (OPTB) under a low-pressure densification technique. The materials were combined in varying ratios of CC to OPTB (100:0, 75:25, 50:50, 25:75, 0:100) and wastepaper pulp (10% by weight) was added to each mixture as a binder. The briquettes were produced using a manually operated 20-tonne hydraulic piston press at 28 °C temperature and ≤7 MPa compaction pressure. The mechanical strength of the briquettes was determined by the drop test and compression test methods, while a bomb calorimeter was used to determine the calorific values. The results showed that the physical properties of hybrid briquettes ranged from 9.24–10.00% moisture content, 0.38–0.40 g/cm3 density, and 87.60%–92.00% water resistance. Mechanical strength showed a 98.28%–99.08% shatter index and 18.47–21.75 MPa compressive strength, while calorific values ranged from 16.54–16.91 MJ/kg. The hybrid briquettes fared better than the CC briquettes. The significance of this study lies in the production of briquettes with suitable physical, mechanical and thermal properties by utilizing OPTB which have hitherto not been used, mixed with corncobs. This could bring substantial environmental and socio-economic benefits to rural communities of the developing countries.
Sunday Yusuf Kpalo; Mohamad Faiz Zainuddin; Latifah Abd Manaf; Ahmad Muhaimin Roslan. Production and Characterization of Hybrid Briquettes from Corncobs and Oil Palm Trunk Bark under a Low Pressure Densification Technique. Sustainability 2020, 12, 2468 .
AMA StyleSunday Yusuf Kpalo, Mohamad Faiz Zainuddin, Latifah Abd Manaf, Ahmad Muhaimin Roslan. Production and Characterization of Hybrid Briquettes from Corncobs and Oil Palm Trunk Bark under a Low Pressure Densification Technique. Sustainability. 2020; 12 (6):2468.
Chicago/Turabian StyleSunday Yusuf Kpalo; Mohamad Faiz Zainuddin; Latifah Abd Manaf; Ahmad Muhaimin Roslan. 2020. "Production and Characterization of Hybrid Briquettes from Corncobs and Oil Palm Trunk Bark under a Low Pressure Densification Technique." Sustainability 12, no. 6: 2468.
Urban trees composition and diversity are gaining more relevance for academic, urban planning and sustainability purposes. Despite their free ecosystem services, little is documented on urban trees especially in developing countries such as Nigeria. This study assessed the composition, diversity, structural characteristics and provenance of trees in two cities of North-western Nigeria. Landsat images for 2015 were used to classify each city into five broad land cover classes to facilitate stratified sampling. Data on tree species, height, Diameter at Breast Height (DBH) and provenance was collected from a total of 373 plots of 30 × 30 m dimension. A total of 1558 trees belonging to 56 species in 46 genera and 22 families were assessed with generally more categories of native than exotic species but higher populations of exotic stems. Azadirachta indica and Mangifera indica were the most dominant species in both cities while Meliaceae, Anacardiaceae, Fabaceae, Moraceae and Combretaceae were the dominant families. Lower diversity (H’ = 1.8), lower evenness (J = 0.53) and lower mean density (42.4 trees/ha) were recorded in Sokoto compared to Zaria (H’ = 3.30, J = 0.84 and density = 50.48 trees/ha). A one-way ANOVA revealed significant difference in these parameters across the land cover types within the cities except mean height which was not significantly different in Sokoto. An independent samples t-test also revealed significantly different mean height, diameter and Basal Area (BA) but similar plot densities between the cities. Urban tree composition, diversity and structural characteristics vary significantly between these two cities in North-western Nigeria and though exotic species have fewer categories, their stems are gradually dominating the cities. This may cause alterations in tree species composition and diversity and possibly, biotic homogenization. This calls for expanded tree planting with more emphasis on the native species.
Murtala Dangulla; Latifah Abd Manaf; Mohammad Firuz Ramli; Mohd Rusli Yacob. Urban tree composition, diversity and structural characteristics in North-western Nigeria. Urban Forestry & Urban Greening 2019, 48, 126512 .
AMA StyleMurtala Dangulla, Latifah Abd Manaf, Mohammad Firuz Ramli, Mohd Rusli Yacob. Urban tree composition, diversity and structural characteristics in North-western Nigeria. Urban Forestry & Urban Greening. 2019; 48 ():126512.
Chicago/Turabian StyleMurtala Dangulla; Latifah Abd Manaf; Mohammad Firuz Ramli; Mohd Rusli Yacob. 2019. "Urban tree composition, diversity and structural characteristics in North-western Nigeria." Urban Forestry & Urban Greening 48, no. : 126512.
The massive amount of urban litter in Malaysia is influenced by rapid population growth, development, economic growth and unsustainable lifestyles. Few studies have assessed the amount of urban litter load and its composition at gross pollutant trap (GPT), significantly contributing to lack of historical data. This study is aimed to assess the amount of urban litter load in wet basis condition at individual GPTs along Sungai Batu, Selangor in 2015. The urban litter collection data at each GPT in 2015 were sourced from Department of Irrigation and Drainage (DID). Samples were manually collected once a month, stored in plastic bag and immediately weighed and recorded by following the ASCE standard method. The result shows that the total amount of urban litter load in 2015 was 3761.72 kg/year (Mean ± SD; 313.4767 ± 141.9105 kg/year). In such situations, further study on urban litter load and its composition trapped at GPTs is urgently required as it is crucial to establish baseline data information during the decision making process, holistically improving stormwater management and urban litter management in Malaysia.
Nur Khaliesah Abdul Malik; Latifah Abd Manaf; Nor Rohaizah Jamil; Mohd Hafiz Rosli; Fasihah Mohd Yusof; Zulfa Hanan Ashaari. THE QUANTIFICATION OF URBAN LITTER LOAD AT GROSS POLLUTANT TRAP ALONG SUNGAI BATU, SELANGOR. PLANNING MALAYSIA 2019, 17, 1 .
AMA StyleNur Khaliesah Abdul Malik, Latifah Abd Manaf, Nor Rohaizah Jamil, Mohd Hafiz Rosli, Fasihah Mohd Yusof, Zulfa Hanan Ashaari. THE QUANTIFICATION OF URBAN LITTER LOAD AT GROSS POLLUTANT TRAP ALONG SUNGAI BATU, SELANGOR. PLANNING MALAYSIA. 2019; 17 (10):1.
Chicago/Turabian StyleNur Khaliesah Abdul Malik; Latifah Abd Manaf; Nor Rohaizah Jamil; Mohd Hafiz Rosli; Fasihah Mohd Yusof; Zulfa Hanan Ashaari. 2019. "THE QUANTIFICATION OF URBAN LITTER LOAD AT GROSS POLLUTANT TRAP ALONG SUNGAI BATU, SELANGOR." PLANNING MALAYSIA 17, no. 10: 1.
The global waste generation keeps increasing over the years and it requires innovative solutions to minimize its impacts on environmental quality and public health. A strategic plan must be ascertained to overcome the future challenges of Municipal solid waste (MSW) locally and globally. Universiti Putra Malaysia (UPM) coined an initiative to demonstrate a showcase pilot plant for green energy production from MSW. The data was obtained from the survey and actual sampling within the UPM compound shows that UPM has generated 5.0–7.0 t/d of MSW generated consist of 30–35% organic fraction. Restaurants are the main source of the organic fraction. Upon separation, the organic fractions were digested into biogas. At a maximum conversion of the organic fraction, 715 kWh of electricity might be generated from the 2.2 t/d of organic waste generated in UPM. In this study, organic components from UPM were proposed to be subsequently used as a substrate via anaerobic digestion to produce green energy in the form of electricity or flammable fuels.
Ahmad Aiman Zulkifli; Mohd Zulkhairi Mohd Yusoff; Latifah Abd Manaf; Mohd Rafein Zakaria; Ahmad Muhaimin Roslan; Hidayah Ariffin; Yoshihito Shirai; Mohd Ali Hassan. Assessment of Municipal Solid Waste Generation in Universiti Putra Malaysia and Its Potential for Green Energy Production. Sustainability 2019, 11, 3909 .
AMA StyleAhmad Aiman Zulkifli, Mohd Zulkhairi Mohd Yusoff, Latifah Abd Manaf, Mohd Rafein Zakaria, Ahmad Muhaimin Roslan, Hidayah Ariffin, Yoshihito Shirai, Mohd Ali Hassan. Assessment of Municipal Solid Waste Generation in Universiti Putra Malaysia and Its Potential for Green Energy Production. Sustainability. 2019; 11 (14):3909.
Chicago/Turabian StyleAhmad Aiman Zulkifli; Mohd Zulkhairi Mohd Yusoff; Latifah Abd Manaf; Mohd Rafein Zakaria; Ahmad Muhaimin Roslan; Hidayah Ariffin; Yoshihito Shirai; Mohd Ali Hassan. 2019. "Assessment of Municipal Solid Waste Generation in Universiti Putra Malaysia and Its Potential for Green Energy Production." Sustainability 11, no. 14: 3909.
The accumulation of floatable litter in the river is mainly influenced by the increasing number of human population, rapid urbanization and development which indirectly lead to the changes of hydrological processes in river discharge, decreasing the water quality and aesthetical value of the river. The main objective of this paper is to determine the cumulative floatable litter load captured at the log boom during the extreme events by using the Gumbel distribution method for frequency analysis in river discharge of Sungai Batu. The annual maximum river discharge for a period of 35 years (1982 to 2016) was used in Gumbel distribution method to obtain the discharge for different return period (2, 5, 10, 25, 50, 100, and 200). The result shows that the estimated discharge (103.17 m³/s) can estimate the cumulative floatable litter load (53267.27 kg/day) at 50 years return period. The R2 value obtained from non – linear regression analysis is 0.9986 indicate that Gumbel distribution is suitable to predict the expected discharge of the river. This study is very crucial for the related agencies in highlighting this environmental issues for their future references which can be used as a guidelines during the decision making process in making better improvement.
Nur Khaliesah Abdul Malik; Nor Rohaizah Jamil; Latifah Abd Manaf; Mohd Hafiz Rosli; Zulfa Hanan Ash’Aari; Fasihah Mohd Yusof. Application of Frequency Analysis on Peak River Discharge toward the Cumulative Floatable Litter Load at Log Boom Sungai Batu. MATEC Web of Conferences 2019, 266, 02002 .
AMA StyleNur Khaliesah Abdul Malik, Nor Rohaizah Jamil, Latifah Abd Manaf, Mohd Hafiz Rosli, Zulfa Hanan Ash’Aari, Fasihah Mohd Yusof. Application of Frequency Analysis on Peak River Discharge toward the Cumulative Floatable Litter Load at Log Boom Sungai Batu. MATEC Web of Conferences. 2019; 266 ():02002.
Chicago/Turabian StyleNur Khaliesah Abdul Malik; Nor Rohaizah Jamil; Latifah Abd Manaf; Mohd Hafiz Rosli; Zulfa Hanan Ash’Aari; Fasihah Mohd Yusof. 2019. "Application of Frequency Analysis on Peak River Discharge toward the Cumulative Floatable Litter Load at Log Boom Sungai Batu." MATEC Web of Conferences 266, no. : 02002.
Environmental policies should be developed in a contextual decision-making process regarding local environmental concerns emphasizing the economic, technical, social and institutional considerations. Establishing emission limit levels, especially in the industrial sector, is one of the most problematic environmental issues in developing countries, for which it is essential to include several criteria that reflect their country-specific constraints and capacities. Since Best Available Technology (BAT) is acknowledged to be the reference element for sustainable development and a basis for Emissions Limit Values (ELVs), the objective of this study is to present a reliable methodology for establishing ELVs thresholds with an emphasis on the BAT concept for national regulation at the sector level. A hybrid fuzzy multiple-criteria decision-making (FMCDM) process, consisting of the Analytic Hierarchy Process (AHP) and fuzzy Technique for Order of Preference by Similarity to Ideal Solution (fuzzy TOPSIS) method, is structured to aggregate the different criteria and rank different ELV alternatives in this complicated evaluation. In order to use the most profound knowledge and judgment of a professional expert team, this qualitative assessment highlights the importance of supportive information. The results obtained indicate that experts have considered the country-specific information as a reliable reference in their decisions. Among different key evaluation criteria in effluent standard setting, the highest experts' priority is "Environmental protection". For both the conventional and toxic pollutants, the influence of all other criteria namely "Economic feasibility", "Technology viability" and "Institutional capacity", as constraining criteria in developing countries, have not reduced the responsibility towards the environmental objectives. In ELVs ranking, experts have made their decisions with respect to the specific characteristics of each pollutant and the existing capacities and constraints of the country, without emphasizing on any specific reference. This systematic and transparent approach has resulted in defensible country-specific ELVs for the Iron and Steel industry, which can be developed for other sectors. As the main conclusion, this paper demonstrates that FMCDM is a robust tool for this comprehensive assessment especially regarding the data availability limitations in developing countries.
Maryam Mahjouri; Mohd Bakri Ishak; Ali Torabian; Latifah Abd Manaf; Normala Halimoon. An integrated methodology for establishing industrial effluent limits in developing countries: Iran as a case study. Journal of Environmental Health Science and Engineering 2018, 16, 181 -192.
AMA StyleMaryam Mahjouri, Mohd Bakri Ishak, Ali Torabian, Latifah Abd Manaf, Normala Halimoon. An integrated methodology for establishing industrial effluent limits in developing countries: Iran as a case study. Journal of Environmental Health Science and Engineering. 2018; 16 (2):181-192.
Chicago/Turabian StyleMaryam Mahjouri; Mohd Bakri Ishak; Ali Torabian; Latifah Abd Manaf; Normala Halimoon. 2018. "An integrated methodology for establishing industrial effluent limits in developing countries: Iran as a case study." Journal of Environmental Health Science and Engineering 16, no. 2: 181-192.
Improper handling of household solid waste causes problems that affect public health and the environment, as well as the aesthetic nature of cities. This paper aims to determine if the theory of planned behavior (TPB), and its extended version can be used to predict household recycling intention (RI), and whether perceived lack of facilitating conditions have a moderating role on households’ RI in Nigeria. Data from a sample of 393 households from Kano metropolis Nigeria were analyzed using structural equation modeling. The result reveals that the TPB Model predicts households RI in Nigeria and explains 42% of the variance in RI. Attitude is the most important predictor of RI in the TPB model (β = 0.593, p = 0.000). However, after personal norm (PN) was added into the model, the variance in RI increases to 58% and PN becomes the most important predictor of RI in the extended TPB model (β = 0.496, p = 0.000). Perceived lack of facilitating condition was found to have a significant moderating effect on households’ RI. Finally, our findings show that providing households with recycling facilities and local collections holds great promise for improving households’ intention to recycle.
Muhammad Salisu Khalil; Sabrina Ho Abdullah; Latifah Abd Manaf; Amir Hamzah Sharaai; Aliyu Baba Nabegu. Examining the Moderating Role of Perceived Lack of Facilitating Conditions on Household Recycling Intention in Kano, Nigeria. Recycling 2017, 2, 18 .
AMA StyleMuhammad Salisu Khalil, Sabrina Ho Abdullah, Latifah Abd Manaf, Amir Hamzah Sharaai, Aliyu Baba Nabegu. Examining the Moderating Role of Perceived Lack of Facilitating Conditions on Household Recycling Intention in Kano, Nigeria. Recycling. 2017; 2 (4):18.
Chicago/Turabian StyleMuhammad Salisu Khalil; Sabrina Ho Abdullah; Latifah Abd Manaf; Amir Hamzah Sharaai; Aliyu Baba Nabegu. 2017. "Examining the Moderating Role of Perceived Lack of Facilitating Conditions on Household Recycling Intention in Kano, Nigeria." Recycling 2, no. 4: 18.
Monitoring the riverine litter was essential for the aesthetical value and reducing the negative impacts toward the human health, environment and socio-economic aspects. Riverine litter is mainly made up from the land-based sources. The lack of historical data on riverine litter generation and composition can affect the efficiency of policy makers in making any decision on riverine litter management plan. The purpose of this study is to assess the quantification of types and abundance of riverine litter at log boom Sungai Batu in Kuala Lumpur. The field sampling has been conducted for 14 days of operation day at log boom Sungai Batu, Kuala Lumpur, within the period month of March until April. The quantification of riverine litter and its composition was based on the time interval during the operation day. The result shows that the Event 3 has recorded the high abundance of riverine litter with 4654.6 kg/operation day. This study also shows that the river is highly dominated with plastic waste with 39% (62.96 ± 15.38 kg/operation day). This study provides the baseline information for the local authority and relevant agencies in reducing the riverine litter which subsequently provide a sustainable environmental and socio-economic condition.
Nur Khaliesah Abdul Malik; Latifah Abd Manaf. Potential recyclable materials derived from riverine litter at log boom Sungai Batu in Kuala Lumpur. Journal of Material Cycles and Waste Management 2017, 20, 1063 -1072.
AMA StyleNur Khaliesah Abdul Malik, Latifah Abd Manaf. Potential recyclable materials derived from riverine litter at log boom Sungai Batu in Kuala Lumpur. Journal of Material Cycles and Waste Management. 2017; 20 (2):1063-1072.
Chicago/Turabian StyleNur Khaliesah Abdul Malik; Latifah Abd Manaf. 2017. "Potential recyclable materials derived from riverine litter at log boom Sungai Batu in Kuala Lumpur." Journal of Material Cycles and Waste Management 20, no. 2: 1063-1072.
Recycling programmes have been conducted by various stakeholders including Government sector and private sector to reduce waste generation from being disposed into the landfill. The objectives of this study was identifying the correlation between the community participation in recycling programme and community attitude and their knowledge on solid waste segregation. The fully structured questionnaires were filled in by 382 respondents through random sampling. The result shows that there was a weak and positive correlation between community participation in recycling programme with community attitude on solid waste segregation, r = 0.343; and community knowledge on solid waste segregation, r = 0.251. Policy review by Government is highly recommended to identify the factors that can influence more community participation in recycling programmes
Nur Khaliesah Abdul Malik; Sabrina Ho Abdullah; Latifah Abd Manaf. Community Participation on Solid Waste Segregation Through Recycling Programmes in Putrajaya. Procedia Environmental Sciences 2015, 30, 10 -14.
AMA StyleNur Khaliesah Abdul Malik, Sabrina Ho Abdullah, Latifah Abd Manaf. Community Participation on Solid Waste Segregation Through Recycling Programmes in Putrajaya. Procedia Environmental Sciences. 2015; 30 ():10-14.
Chicago/Turabian StyleNur Khaliesah Abdul Malik; Sabrina Ho Abdullah; Latifah Abd Manaf. 2015. "Community Participation on Solid Waste Segregation Through Recycling Programmes in Putrajaya." Procedia Environmental Sciences 30, no. : 10-14.