organic waste degrader Articles

  • Relative efficacy of two methods of vermicomposting for bio-degradation of organic wastes

    Two methods of vermicomposting were used for the bio-degradation of organic wastes, viz., the pit method and the heap method. The efficacy of these two methods was compared under field conditions over three seasons (winter, summer and rainy) by using one of the most promising composting worm species, Eisenia fetida. One hundred adult earthworms (Eisenia fetida) were released in each pit and heap. ...


    By Inderscience Publishers

  • Anaerobic degradation of carbon capture reclaimer MEA waste

    The anaerobic biodegradation of reclaimer MEA (monoethanolamine) waste (MEAw) with easily degradable co-substrates was investigated in a laboratory-scale bioreactor at room temperature during a 160 d experimental run. The reactor that was constructed with three phases to facilitate attached biofilm and suspended biomass retention for degradation of the complex and challenging MEAw performed ...


    By IWA Publishing

  • Using full-scale duckweed ponds as the finish stage for swine waste treatment with a focus on organic matter degradation

    The rapid increase in the number of swine has caused pronounced environmental impacts worldwide, especially on water resources. As an aggregate, smallholdings have an important role in South American pork production, contributing to the net diffusion of pollution. Thus, duckweed ponds have been successfully used for swine waste polishing, mainly for nutrient removal. Few studies have been ...


    By IWA Publishing

  • Influence of the comminution of organic waste on their biodegradability

    Organic solids are present in very large quantities as products or waste from agriculture, food industry, household and many other fields. The disposal of organic waste can be realised using biological processes like anaerobic digestion or aerobic composting. The anaerobic digestion has advantages in comparison to composting such as a better handling of wet waste, the production of useful ...


    By ORBIT e.V.

  • Changes in geotechnical properties of Municipal Solid Waste (MSW) in bioreactor landfill with degradation

    The objectives of the research described in this paper are to: study the composition of fresh Municipal Solid Waste (MSW); study the effects of decomposition on physical characteristics of MSW in bioreactor landfill. Initially, composition of the fresh MSW constituents was determined based on 14 bag MSW samples. Then, four small-scale bioreactor landfills were simulated in laboratory and samples ...


    By Inderscience Publishers

  • Environmentally Degradable Polymeric Composite Materials

    Abstract The present study was focused on improvement of the competitiveness of Azotobacter chroococcum 23 produced PHB in two directions: 1) seeking for convenient raw materials for PHB biosynthesis; 2) PHB blending with plasticizers in order to obtain PHB composite materials with controllable physical, thermal properties and biodegradability. Corn starch syrup (PHB content 10,2g/l and 9,8g/l, ...


  • Rotary drum composting of different organic waste mixtures

    The effects of three different mixtures of organic waste on composting in a rotary drum were examined by measuring changes in physico-chemical and biological parameters. It was observed that the time courses of the three mixtures: run A (grass cuttings, vegetable waste and food waste), run B (cattle manure, vegetable waste and sawdust) and run C (cattle manure, food waste, vegetable waste, paper ...


    By SAGE Publications

  • Environmental analysis of management systems for organic waste

    Organic waste is generally easily degradable and has a high nutrient content. Thus the risk is large that the handling of such material will generate emissions that affect the environment. New systems have been introduced for managing organic waste fractions from households and industries. These systems are based on source separation and biological treatment, e.g. composting and anaerobic ...


    By ORBIT e.V.

  • Treatment of organic wastes in malaysia . Problems and Prospects

    Solid waste is one of the biggest environmental problems in Malaysia (Hassan et al. 1995). The amount generated continues to increase in response to rapid increase in population and accelerated urbanisation and industrialization processes. Immediate and long-term strategies are required to ensure that the country’s rapid economic growth is not achieved at the expense of massive pollution ...


    By ORBIT e.V.

  • Degradation of biodegradable plastics under controlled composting conditions

    The management of solid waste is a growing concern in many countries. Municipal solid waste is a major component of the total solid waste generated by society, and the fraction of municipal solid waste made up of plastic materials continues to increase. The composting of plastic materials along with organic wastes will help society to usefully recycle more of its solid waste and divert it from ...


    By ORBIT e.V.

  • Determining anaerobic degradation kinetics from batch tests

    Data obtained from a biomethane potential (BMP) test were used in order to obtain the parameters of a kinetic model of solid wastes anaerobic degradation. The proposed model considers a hydrolysis step with a first order kinetic, a Monod kinetic for the soluble organic substrate degradation and a first order decay of microorganisms. The instantaneous release of methane was assumed. The ...


    By IWA Publishing

  • Compost Tumbler to make Bio-Degradable substance

    It’s better to use the garbage in a proper way rather than waste it in vain. Generally, people litter the unpleasant materials and make the place dirty. Now they can use the garbage to prepare effective and useful products for plants. This garbage includes food items, papers, different packets, lavage, home appliances, wooden items, etc. These food items can be used to make compost ...


    By Biofinch Ltd.

  • Management of organic wastes by earthworms: dual benefit for environment and society

    In the present study, two earthworm species, Eisenia fetida and Eudrilus eugeniae were employed to degrade the vegetable wastes and agro-residues. Chemical analysis of the vermicomposts derived from vegetable wastes showed that the quantity of organic carbon was reduced from 42.1% to 31.19 and 30.19% by E. fetida and E. eugeniae, respectively. The level of nitrogen, phosphorus, potassium and ...


    By Inderscience Publishers

  • Effect of organic loading rate on the performance of two-stage anaerobic digestion of the organic fraction of municipal solid waste (OFMSW)

    Two-stage anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) was carried out: hydrolysis and acidogenesis in a continuous anaerobic hydrolytic leach bed (AHLB) reactor loaded at different rates (Bv = 3.8–7 gVSSL−1d−1) and methanogenesis of leachates, diluted with municipal wastewater in an upflow anaerobic ...


    By IWA Publishing

  • Characterisation of the recalcitrant organic compounds in leachates formed during the anaerobic biodegradation of waste

    This study investigates the use of UV absorption and fluorescence spectroscopy to assess the early development of recalcitrant organic compounds in leachates formed during the anaerobic biodegradation of municipal solid waste. Biochemical methane potential tests were carried out on fresh waste (FW) and composted waste (CW) over a period of 150 days and leachates produced from the degradation of ...


    By IWA Publishing

  • The relevance of moisture control in organic municipal Solid waste windrow composting process

    The valorisation of the Municipal Solid Waste composting fraction assumes importance in management strategies of the MSW and constitutes a way of producing an organic material such as humus to improve the soil aeration, the water holding capacity and valuable product when used as soil amendment because it is a source of nutrients (N, P, K) and useful for recovery of poor and degraded soils. It is ...


    By ORBIT e.V.

  • Bio-conversion of organic waste using composting technologies – a review

    Composting is nowadays evolving as a highly technical process for processing organic waste separately replacing landfilling along with municipal solid waste. Vegetable waste with high organic content can be composted to produce nutrient rich material that can work as soil conditioner instead of dumping in open landfills. Various studies reveal that due to high organic content of vegetable waste ...


    By Inderscience Publishers

  • Kinetics of batch microbial degradation of phenols by indigenous Pseudomonas fluorescence

    The potential of various organisms to metabolize organic compounds has been observed to be a potentially effective means in disposing of hazardous and toxic wastes. Phenols and their compounds have long been recognized as one of the most recalcitrant and persistent organic chemicals in the environment. The bioremediation potential of an indigenous Pseudomonas fluorescence was studied in batch ...

  • Methane production and hydrolysis kinetics in the anaerobic degradation of wastewater screenings

    Anaerobic biodegradability and hydrolysis rates of wastewater screenings were determined using the biochemical methane potential test at 37 °C. The extent and rate of screenings conversion to methane of this complex and particulate substrate were investigated and since two stages of hydrolysis were identified, corresponding to the different types of materials in screenings, a linear and ...


    By IWA Publishing

  • Decomposition of major organic components during mechanical-biological pretreatment of residual municipal solid waste

    Landfilling of untreated municipal solid waste (MSW) generates environmentally hazardous gas and leachate emissions (El-Fadel et al., 1997). The aim of mechanical-biological waste pretreatment (MBP) is to anticipate this process in a controlled system and to avoid later emissions in the landfill (Leikam and Stegmann, 1997). Main source of these emissions is the microbial metabolism of the easily ...


    By ORBIT e.V.

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