Review of municipal solid waste management options in Malaysia, with an emphasis on sustainable waste-to-energy options

Aja, Ogboo Chikere; Al-Kayiem, Hussain H.

doi:10.1007/s10163-013-0220-z

Cited by 80 publications

(33 citation statements)

References 46 publications

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“…A high moisture content (≥ 60%) of compost usually required post-treatment such as further drying. Post-treatment with thermophilic aerobic composting usually leads to a reduction in the volume of feed (Aja and Al-Kayiem 2014). The temperature of the composting was mesophilic.…”

Section: Physiochemical Characteristics Of the Substrate And Compostmentioning

confidence: 99%

Biodegradation by composting of municipal organic solid waste into organic fertilizer using the black soldier fly (Hermetia illucens) (Diptera: Stratiomyidae) larvae

Sarpong

Oduro–Kwarteng

Gyasi

et al. 2019

Int J Recycl Org Waste Agricult

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Purpose The objectives of this study were to assess the black soldier fly larvae (BSFL) composting potential and to analyse the quality of organic fertilizer produced for agricultural purposes. Methods The waste biodegradation was determined by varying waste feed treatment (2, 2.5, 3.0, 3.5, to 4 kg) and control treatment of (2 kg) of heterogeneous mixture of municipal organic solid waste from market, restaurant and households. Each of the setups received equal number of viable larvae (i.e. 2000) which were 5-6 days old. To analyse the nutrient concentration of the compost residues with BSFL, the substrate and final compost were evaluated based on the levels of NPK as well as the C:N ratio. To evaluate the toxic levels of the final compost in terms of heavy metals, the presence and levels of As, Cd, Fe, Pb and Ni were investigated. Results The analysis showed that there was high percentage increase of nitrogen, phosphorus and potassium levels, i.e. 41.2% (SD ± 0.71%), 32.4% (SE ± 0.2%) and 77.1% (SE ± 0.19%), respectively. It was found that the larvae degraded more than half of the total substrate within 2 weeks. The study showed a decrease in heavy metal concentrations after larvae composting. Conclusion The study revealed that the concentration of NPK increased significantly among the treatment groups. The study further revealed that some of the heavy metals under investigation had reduced to an acceptable level according to the standards of both local and international regulatory bodies.

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Section: Physiochemical Characteristics Of the Substrate And Compostmentioning

confidence: 99%

Biodegradation by composting of municipal organic solid waste into organic fertilizer using the black soldier fly (Hermetia illucens) (Diptera: Stratiomyidae) larvae

Sarpong

Oduro–Kwarteng

Gyasi

et al. 2019

Int J Recycl Org Waste Agricult

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“…The study of the relationships between the environment, the economy, and industrial policies is usually focused on identifying the impact of individual factors on the environment, including anthropogenic influences outlined in References [13,16], the growth of urbanization outlined in Reference [10], and changes in technological standards outlined in References [11,12]. While this approach permits a determination of the level of emerging risks for the environment, it does not help us to understand how to make the transition from an economic model that develops linearly to one that develops as a closed-loop system written by D'Amato et al [59].…”

Section: Discussionmentioning

confidence: 99%

“…There is a large number of works providing an analysis of environmental problems and possible approaches to their solution from the perspective of a linear economy shown in References [3][4][5][6][7][8][9][10][11][12][13]. Researchers analyzing data on industrial emissions of CO 2 -the main greenhouse gas-have coalesced around the Global Carbon Project to study the main sources of atmospheric pollution, i.e., fuel and energy enterprises as well as manufacturing and transport industries.…”

Section: Introductionmentioning

confidence: 99%

Ecological Criteria for Comparing Linear and Circular Economies

2018

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In the present article, the main principles of the circular economy are outlined in contradistinction with the existing and traditional linear economic model. An econometric model describing the influence of the linear economy on the environment is presented. The environment is characterized by seven key processes: change in global temperature; emissions of greenhouse gases from industry to the environment; emissions of greenhouse gases from agriculture to the environment; CO2 emissions into the environment; depletion of fresh water supplies; reduction of forest cover; and economic damage from climatological disasters. The model describing the impact of the traditional linear economy on the environment consists of seven interdependent econometric equations, each comprising an autoregressive distributed lag (ADL)-model. The proposed econometric model is used to analyze the environmental effects of the present linear economy. Methodological provisions for a transformational transition of the traditional linear economic model to the closed-loop systems, which also permit the impact of the closed-loop systems on the environment to be analyzed, are set out. Seven ecological indicators are proposed as criteria for comparing the traditional linear economy and the closed-loop systems. The manuscript presents a new approach for the determination of ecological criteria for comparing linear and circular economies. The results of the study could be interesting to address circular processes, which can be used as a criterion to establish ecological management according to the status of natural resources.

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“…Landfilling is regarded as an environmentally unsustainable solution due to its high energy requirement and large land space utilization (Moh and Manaf 2014;Chew et al 2018). In Malaysia, FW is classified under municipal solid waste, which accounts for 45% of the total waste produced (Manaf et al 2009;Aja and Al-Kayiem 2014). Landfilling has been the most preferred technique for handling 80-95% of the municipal solid waste in Malaysia (Aja and Al-Kayiem 2014).…”

Section: Introductionmentioning

confidence: 99%

“…In Malaysia, FW is classified under municipal solid waste, which accounts for 45% of the total waste produced (Manaf et al 2009;Aja and Al-Kayiem 2014). Landfilling has been the most preferred technique for handling 80-95% of the municipal solid waste in Malaysia (Aja and Al-Kayiem 2014). According to Jereme et al (2013), Malaysians end up throwing up to 930 tons of unconsumed food daily, and most of these food wastes are generated by households, wet and night markets, restaurants, hotels, and others.…”

Section: Introductionmentioning

confidence: 99%

Growth performance of roselle (Hibiscus sabdariffa) under application of food waste compost and Fe3O4 nanoparticle treatment

Shuhaimi

Kanakaraju

Nori

2019

Int J Recycl Org Waste Agricult

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Purpose Utilization of food waste as composting materials offers a sustainable solution to manage waste and reduce reliance on fertilizers. Method This study is focused on the efficiency of food waste compost and the effect of the addition of magnetite (Fe 3 O 4 ) nanoparticles on the growth and heavy metals uptake by roselle (Hibiscus sabdariffa) for the cultivation period of 127 days. Five different treatments were applied, namely soil (S), food waste compost (F), a mixture of soil and Fe 3 O 4 (SM), a mixture of soil and food waste compost (SF), and a mixture of soil, food waste compost, and Fe 3 O 4 (SFM). Results After 127 days of cultivation, the plant height averaged at 803 mm with 26 leaves produced across all treatments. Total leaf area, fruit production, and biomass yield were different (P < 0.05) among the treatments. Roselle crops grown under soil and food waste (SF) media produced the highest yield (12.15 g/plant), the most number of fruits (11 fruits/plant), and the highest leaf area (1200 cm 2 /plant). The accumulation of heavy metals in plant tissues was lower than the toxicity levels. There was no difference in the heavy metal content in all growing media, except for Ni, Mn, and Pb. Roselle crops applied with Fe 3 O 4 showed no difference (P > 0.05) from its control (without Fe 3 O 4 ) in relation to growth performance. Conclusion The findings of this study showed that food waste can be applied in composting to promote plant growth. Therefore, it can be considered as a substitute for chemical fertilizers. Meanwhile, the application of Fe 3 O 4 appeared to be experimental-condition dependent.

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Review of municipal solid waste management options in Malaysia, with an emphasis on sustainable waste-to-energy options

Cited by 80 publications

References 46 publications

Biodegradation by composting of municipal organic solid waste into organic fertilizer using the black soldier fly (Hermetia illucens) (Diptera: Stratiomyidae) larvae

Biodegradation by composting of municipal organic solid waste into organic fertilizer using the black soldier fly (Hermetia illucens) (Diptera: Stratiomyidae) larvae

Ecological Criteria for Comparing Linear and Circular Economies

Growth performance of roselle (Hibiscus sabdariffa) under application of food waste compost and Fe3O4 nanoparticle treatment

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