municipal solid waste treatment Articles
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Shredder Machine for Municipal Solid Waste
If you need to deal with municipal solid waste, then you need an industrial shredder (usually dual-shaft shredder), which is used to shred the mixed waste stream into small pieces for subsequent processing. There are many treatment methods for municipal solid waste, usually bio-mechanical treatment or mechanical treatment, organic matter is fermented, combustible waste is made into RDF, and metal ...
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Effect of co-managing organic waste using municipal wastewater and solid waste treatment systems in megacities
A model was developed to calculate the mass and heat balances of wastewater and municipal solid waste treatment plants when these plants operate either separately or together with a mutual dependence on mass and energy. Then the energy consumption, life cycle costs (LCCs), greenhouse gas (GHG) emissions and effluent quality were evaluated under various scenarios to identify the most effective ...
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Removal and transformation of dissolved organic matter (DOM) during the treatment of partially stabilized leachate in membrane bioreactor
The removal of dissolved organic matter (DOM) during municipal solid waste leachate treatment in a membrane bioreactor (MBR) was investigated. The MBR was operated with fouled and cleaned membranes, at a time. DOM, mixed liquor, and effluent were characterized by fractionation and fluorescence excitation–emission matrix (EEM) spectroscopy. Results showed DOM removals of 82% during ...
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Alternative stabilisation options of mechanically sorted organic fraction from municipal solid waste prior to landfill disposal
In order to foresee the measures of the Directive 1999/31/EC, waste management policies are focused on the reduction of organic matter landfill disposal, through the recovering of the organic waste stream or the pre-treatment of residual wastes before landfilling. This paper discusses the advantages and disadvantages of possible stabilisation treatments of the mechanically sorted organic fraction ...
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How To Decide On A Perfect Solid Waste Management Plant Design
Choosing the right design for a new solid waste management plant is an issue of knowing your priorities and also making sure that your equipment can process all kinds of waste. Here are several tips and guidelines to assist you select the ideal layout for your personal plant as well as the right machines for the job. To start with, you have to know that there are four main kinds of solid waste: ...
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On the pre–treatment of municipal organic waste towards fuel production: a review
Lignocelluloses are the main constituents of municipal organic waste (MOW). In order to increase the production of fuels, via fermentations, the enzymatic hydrolysis is the first step towards a valorisation process. It is well–known that the hydrolysis of lignocelluloses is not very effective because of the high stability of the constituents. In this respect the pre–treatment of MOW is necessary ...
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Effect of microwave temperature, intensity and moisture content on solubilisation of organic fraction of municipal solid waste
High temperature and pressure microwave (MW) pre-treatment of the Organic Fraction of Municipal Solid Waste (OFMSW) enhanced solubilisation prior to Anaerobic Digestion (AD). Three temperatures (175°C, 145°C and 115°C), three MW intensities based on temperature ramp times (20, 40 and 60 minutes) and two Supplemental Water Additions (SWA) of 20% and 30% were evaluated. MW irradiation resulted in ...
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Polyhydroxyalkanoate (PHA) production from sludge and municipal wastewater treatment
Polyhydroxyalkanoates (PHAs) are biodegradable polyesters with comparable properties to some petroleum-based polyolefins. PHA production can be achieved in open, mixed microbial cultures and thereby coupled to wastewater and solid residual treatment. In this context, waste organic matter is utilised as a carbon source in activated sludge biological treatment for biopolymer synthesis. Within the ...
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Efficiencies of select vector repellents during composting of Municipal Solid Waste
Presently, most preferred mode of treatment of Municipal Solid Wastes (MSW) is composting. However, this may lead to health hazard because of the potential presence of pathogens, and vector borne insects, rodents etc., in the compost. Field studies were undertaken towards use of Folidol (organophosphate) and Celrich (biopesticide) as repellents of vectors while composting of MSW. At 0.05 kg m−2 ...
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Quality standards of the output fractions after the material specific treatment
The modern era of waste management did not begin in Germany until the mid-1960s. At that time the federal government established the legal basis for proper waste disposal which designated local communities responsible for the disposal of waste. In October 1965 the “Central Office for Waste Disposal” was founded by the federal government and the states (BILITEWSKI et al. 1997). Until the end of ...
By ORBIT e.V.
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Evaluation of a sequential aerobic?anaerobic treatment of municipal solid waste in a bioreactor landfill
A sequential aerobic-anaerobic bioreactor landfill was operated and monitored over a period of 184 days. The bioreactor was filled with 120 kg of organic fraction of Municipal Solid Waste. Leachate recirculation was applied. The results showed rapid degradation of organic matter with rapid settlement during the aerobic period. The initial COD and BOD5 were reduced from 46,500 and 41,500 mg/L to ...
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Perspectives of composting and anaerobic digestion technologies for the treatment of organic fraction of municipal solid waste in Europe and Asia
The development and implementation level of composting and anaerobic digestion technologies for municipal biowaste management in Europe and Asia are different in many aspects. The progress of these technologies generally depends on the lifestyle, waste generation rate, waste characteristics, awareness level, acceptability, market value and other economic factors. In Europe, regulatory directives ...
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Anaerobic digestion of Organic Fraction of Municipal Solid Waste (OFMSW) in two-phase system
In view of recovering energy resource from the treatment of Organic Fraction of Municipal Solid Waste (OFMSW), anaerobic digestion of OFMSW prior to aerobic composting as post-treatment was considered. This study aimed to determine the operational characteristics and efficiency of a two-phase system composed of a fed-batch hydrolysis reactor (phase I) and a methanogenic Upflow Anaerobic Sludge ...
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