solid municipal waste Articles
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Effect on maturity and nutritional parameters during vermicomposting of Municipal Solid Waste
Municipal solid wastes are the residue facing restrictive legislation with respect to landfill disposal of the biodegradable fraction. One of the frequent problem is that the compost maturity of these residues are not achieved due to the high C : N ratio. The present research work shows the effect on compost maturity and nutritional parameters of compost, during vermicomposting. The various ...
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Confirming decentralised composting as a definite option in urban waste management
As unrestricted landfilling of Municipal Solid Waste is being progressively abandoned, separation and processing of biodegradable material is becoming a basic component of urban waste management. The principal processing technology available is composting in its two basic forms and applications, namely centralised and decentralised composting. The centralised scheme targets biological ...
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Economic insight into municipal solid waste management in Mumbai: a critical analysis
Mumbai generates 6256 tonnes of waste every day, of which 17.20% is recyclable, but only a fraction of this is retrieved by rag-pickers. The economic value of the retrieved material is not considered by the Municipal Corporation of Greater Mumbai in valuing the waste management system as there is no retrieval mechanism except the informal rag-picking activity. Moreover, the cost of land used for ...
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Overview of solid waste management in economically developing countries
Recently, protection of public health and of the environment by utilizing proper methods for the management of municipal solid wastes is gaining importance in economically developing countries (DCs). Inefficient collection methods, insufficient coverage of the collection system, combined with improper disposal of municipal solid wastes and contaminated sources of water supply, are major threats ...
By ORBIT e.V.
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Socio–environmental responses to solid waste management in urban areas: the case of Atonsu suburban in Kumasi Metropolis, Ghana
In urban Ghana, solid waste problem has been worsened by the increasing rate of urbanisation and the alteration of urban consumption pattern towards packaging, which tends to produce large amounts of solid waste. This paper examines the social and environmental responses to solid waste management of urban dwellers in Atonsu in Ghana. Mixed method was employed for the study. A total of 115 ...
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Municipal Solid Waste Recycling Methods
Biological or thermal treatment of municipal solid waste can result in recovery of useful products such as compost or energy. Biological Processes Biological treatment involves using micro-organisms to decompose the biodegradable components of waste. Two types of processes are used, namely: Aerobic processes: Windrow composting, aerated static pile composting and in-vessel composting; ...
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Self-sustained vermicomposting plant at municipal solid waste generation point
The increase in quantum of Municipal Solid Waste (MSW) generation puts additional burden on MSW and energy management. Out of all the wastes, the biodegradable waste is the worst waste regarding heat generation due to anaerobic conditions of the waste. The expenditure on collection, transportation and disposal of MSW are very high and environmentally unhygienic. The waste can be converted into ...
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Solid waste characterisation and the assessment of the effect of dumping site leachate on groundwater quality: a case study
In this study, the characterisation of the solid waste and the effect of the leachate from the major dumping site in Perungudi, Chennai city, on groundwater is investigated. Various physical and chemical parameters were estimated: this includes pH, total hardness, electrical conductivity, and total dissolved solids, major cations such as Ca2+, Mg2+, Na+, and K+, major anions such as NO32−, Cl−, ...
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Utilisation of Municipal Solid Waste Compost as landfill cover soil for reducing greenhouse gas emission
Municipal Solid Waste Compost (MSW-C) was introduced for improving landfill cover soil properties and enhancing methane oxidation. The landfill cover soil was irrigated with leachate for maintaining appropriate moisture content for methane oxidation reaction. It was found that MSW-C was an effective landfill cover material for landfill gas emission control exhibiting the highest Methane Oxidation ...
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Assessing Municipal Solid Wastes (MSWs) for composting programmes in rapidly urbanising areas: a case study from Accra, Ghana
A complete understanding of all physico-chemical and biochemical attributes of waste stream materials is necessary for successful implementation of waste management programmes in given context because of their influence on the behaviour of these materials in the natural environment. This paper discusses these properties of Municipal Solid Waste (MSW) to gauge its suitability for sustainable ...
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Status of municipal solid waste management system in India
Municipal solid waste management (MSWM) has become a worldwide concern and is a major issue especially in developing countries due to environmental problems, such as air, soil and water pollution and generation of greenhouse gases from open dumping sites. The MSW management is going through a critical phase due to the non–availability of suitable facilities to treat and dispose of the increasing ...
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What is Boiler MACT & CISWI MACT? - Case study
Boiler MACT regulates production of carbon monoxide (CO). If CO is managed by combustion conditions, NOx production increases. The best strategy for Boiler MACT compliance is to control CO in the boiler and allow the UltraCat Catalytic Filter System to remove NOx in the flue gas. CISWI MACT regulates air pollutants from commercial and industrial solid waste incineration units, for: ...
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MSW management strategies for the city of Rome: a comparative assessment
In this paper, on the basis of a detailed characterisation of the Municipal Solid Waste (MSW) generated in the city of Rome, different integrated management strategies regarding both source separation of selected fractions and the treatment and disposal of the residual commingled waste were compared and discussed in terms of achievable material and energy recovery. The main findings of this ...
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New guidelines for characterization of municipal solid waste: the Portuguese case
This report proposes a new set of guidelines for the characterization of municipal solid waste. It is based on an analysis of reference methodologies, used internationally, and a case study of Valorsul (a company that handles recovery and treatment of solid waste in the North Lisbon Metropolitan Area). In particular, the suggested guidelines present a new definition of the waste to be analysed, ...
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Geochemistry of sediments and water with a health risk assessment of heavy metal contaminated vegetables grown in Dhapa, a waste disposal site in Kolkata, India
Dhapa, is a well known municipal solid waste (MSW) disposal site in the eastern part of the city of Kolkata. Geochemical study reported here shows that in its sediments, the concentration of Zn, Cu and Pb greatly exceed the average worldwide shale concentration. The water samples collected from tubewells, dugwells, pond and canals have elevated concentrations of Zn, Mn, Cr, Cu, Ni and Pb. The ...
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Municipal solid waste management
Management of Municipal Solid Waste (MSW) is one of the most basic obligatory functions of the Urban Local Bodies. In most of the cities, however, the standard of waste management needs improvement. The environmental and health hazards caused by the unsanitary conditions in the cities were epitomised by the episode of plague in Surat in 1994. That triggered public interest litigation in the ...
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Project Fiberight Pilot Plant Demonstration Facility in Lawrenceville, VA
Fiberight purchased the plant in 2010 for the sole purpose of integrating various pieces of equipment and operating conditions necessary to fully realize the Fiberight vision – maximizing resource recovery from Municipal Solid Waste (MSW). Since then, Fiberight has logged over 10,000 hours operating the plant. The nature of the demonstration facility has enabled a continuous optimization ...
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Dual role of hydrolysis coefficient in modelling of bioreactors
To the authors' knowledge, there is no published work, relating biodegradation and settlement of municipal solid waste (MSW) in bioreactor landfills together. The present mathematical model is developed to simulate the biodegradation of MSW in anaerobic bioreactor landfills and predict the strength of leachate in terms of volatile fatty acid (VFA). The hydrolysis rate constant (kh) has been found ...
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Comparative assessment of anaerobic digestion of municipal solid waste at mesophilic and thermophilic temperatures
Anaerobic digestion is an environmentally sound treatment option for the organic fraction of municipal solid waste (OFMSW) and simultaneously producing methane gas which is a source of renewable energy. The COD reduction of the substrate was 72% for the mesophilic condition and 72.3% for the thermophilic condition. 1200 cm³ of methane was produced in the mesophilic condition and 1260 cm³ in the ...
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Contingent Valuation of improved waste management: the case of a tourist town in a developing country
This paper reports on a Contingent Valuation (CV) study of improved solid waste management in Boca Chica, Dominican Republic. CV is a survey-based method of economic valuation of public services, and it was applied to assess residents' Willingness-To-Pay (WTP) for two alternative improvement plans. Three hundred heads of household were interviewed. After responding to questions about the actual ...
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