solid waste management Articles
-
Multi-Criteria Decision Making and composting of waste in the municipality of Bacoor in the Philippines
Choosing the most appropriate and practical strategy for solid waste management is a complex undertaking. It requires the identification of relevant perspectives, meaningful criteria, and sound evaluation method. The municipality of Bacoor in the Philippines used Multi-Criteria Decision Making (MCDM) method to arrive at a chosen waste management strategy ? composting ? from a holistic set of ...
-
Sustainability and replication potential of community-based composting: a case study of Bangladesh
Composting is one of the potential waste reduction strategies of solid waste management. It represents waste not as a problem but as a potential resource in the sustainable development paradigm. A number of community-based composting projects are being piloted in the cities. Some projects are successful to produce lasting impacts; however, many projects could not support themselves or expand ...
-
Removal of phenols from aqueous solutions of treated rice husk ash
In the present study, Rice Husk Ash (RHA), a rice mill industry waste, was used as a low–cost adsorbent for the adsorptive removal of phenol from aqueous solutions. Batch experiments were carried out to obtain adsorption kinetics and equilibrium isotherms with phenol spiked synthetic solutions. The desorption tests along with the effects of solution pH and dosages of adsorbent on removal of ...
-
Management of water hyacinth (Eichhornia crassipes), an aquatic weed waste, by vermicomposting technology
Water hyacinth has become a menace in Sambhaji tank, Solapur city, Maharashtra, India. An attempt has been made to convert this water hyacinth into a nutrient rich vermicompost using the earthworm Eudrilus eugeniae. The macronutrient and microbial analysis of vermicompost at various intervals of time has been studied and compared with decomposing water hyacinth. It was found that nitrogen, ...
-
Salvage as a recession hedge: green jobs and other economic stimuli
Two projects combine selective deconstruction with job training. Beyond financial savings, training is a huge bonus during recession. Scarcity shows us opportunity. Waste is an unneeded expense, and deconstruction offers savings and jobs. We illustrate material donor and recipient economics. The road between includes contractors spending labour to lower the material 'price' and refurbishers who ...
-
Biodegradation of water hyacinth, sugarcane bagasse and rice husk through vermicomposting
Water hyacinth, sugarcane bagasse and rice husk are major bio-organic wastes causing severe environmental problems. For their biodegradation, Eisenia fetida was used as a vermicomposting worm in outdoor open field conditions. The above wastes were mixed separately with fresh cow dung in the ratio 1 : 5 (by weight). The mixtures were vermicomposted for 90 days in pits of size 2 × 0.5 × 0.6 m (l × ...
-
Characterisation of humic acid maturation by fluorescence spectroscopy and thermal analysis during composting of olive mill waste
Humic acids isolated from different stages of olive mill waste composting were investigated by Elemental analysis, Fluorescence spectroscopy and by Differential Scanning Calorimetry (DSC). The Elemental composition of these humic acids indicates an increase in aromatic structures during the composting. Indeed, the fluorescence results showed an increase in condensed aromatic ring systems. ...
-
Does substrate quality affect earthworm growth and reproduction patterns in vermicomposting systems? A study using three popular composting earthworms
Efforts were made to evaluate the impact of substrate materials (crop residues + sheep manure, cowshed manure, and kitchen waste + leaf litter) on growth and reproduction performance of composting earthworms: Eudrilus eugeniae, Perionyx excavatus and Perionyx sansibaricus, under laboratory conditions. Results indicated that earthworm biomass and cocoon production rate was directly related to the ...
-
Microbial characterisation of vermicompost and compost of urban waste processed by three earthworm species - Eudrilus eugeniae, Eisenia fetida and Perionyx excavatus
Species diversity of bacteria, fungi and actinomyctes of vermicompost and compost of the organic fraction of municipal solid waste, vegetable market waste and flower waste were assessed using pour plate technique. Of the total 91 entities, 62 were bacteria and 29 were actinomycetes in MW, followed by that of MSW and FW, with 59 and 55 bacterial; 25 and 22 actinomycetes entities, respectively. The ...
-
Application of household compost bin for diversion of organic wastes in small communities of Thailand
Natural ventilated and aerated composting units were developed for household, fresh market and restaurant wastes. Household wastes required 8-10 weeks of composting period. The final compost product contained N : P : K content higher than organic compost standard. In aerated unit, the composting period was 30-40 days. Economical analysis suggested Benefit-Cost (B/C) ratio and Economical Internal ...
-
Effects of C/N ratio on mixed organic waste composting in a rotary drum composter
Effects of Carbon to Nitrogen (C/N) ratio on the rotary drum composting of organic waste were examined by measuring changes in various parameters. It was observed that time courses of four C/N ratios: 16, 22, 30 and 38 were different. Initial C/N ratio 22 produced high-quality compost (total nitrogen-2.1%, total phosphorus-4.3 g/kg) within 20 days. While in case of C/N 16, compost yields 1.8% ...
-
A systematic overview of urban agriculture in developing countries from an environmental point of view
Urban agriculture can contribute to food security and poverty alleviation in developing countries. It can also help to improve public health and resource management by reusing excreta, wastewater and organic solid waste. This paper presents a systematic overview of urban agriculture in low and middle-income countries and identifies research needs. The cross-cutting issues, especially between ...
-
Mixed organic waste composting using rotary drum composter
A combination of vegetable waste, cattle manure and saw dust was utilised for high rate composting in a household rotary drum composter. It was found that temperature remained above 55?C for a period of two days, Faecal Coliforms and Faecal Streptococci decrease from 7.5 ? 108 to 5 ? 102 and 1.5 ? 107 to 5 ? 103 bacteria/g, respectively. Negligible VFAs production indicated full aerobic ...
-
Home composting of organic waste - part 2: effect of management practices
Home composting (HC) can produce safe compost if properly managed, while reducing municipal disposal costs. This project investigated the sanitary and safety impact of HC management (with/without bulking agent, batch/weekly feeding, with/without regular mixing) using the Plastic (P) and Wood (W) bins, the Rotary Drum (RD) and the Ground Pile (GP) filled with equal wet volumes of food waste (FW) ...
-
Combining primary collection with decentralised composting - a solution?
The environmental problems of urban areas extend over a wide range of spatial scales; i.e., the household, the place of work, the neighbourhood, the city, the wider region, and the world. In rapidly growing cities of the developing world, urban solid waste management (SWM) is currently regarded as one of the most immediate and serious problems faced by urban governments. Inadequate or unavailable ...
By ORBIT e.V.
-
Integrated composting and vermicomposting: a boon to industry for waste clearance
The industrial bio-solid waste management is a global problem which has become even more challenging due to rise in population, industrialisation as well as changes in standard of living. Different waste management options, particularly landfill and incineration have potential adverse effects on environment, health, soil and biodiversity. There are little potential problems of environmental ...
-
Co–composting as a management strategy to reuse the white–rot fungus Trametes versicolor after its use in a biotechnological process
White–rot fungi are extensively used in biotechnological processes but little is known about the disposal of fungal biomass after its use. Final products stability parameters (self–heating test and respiration index) indicate that co–composting of the white–rot fungus Trametes versicolor with Organic Fraction of Municipal Solid Wastes (OFMSW) ensure a higher stable final ...
-
Calabria 01 - ZE-175-LT - Pruning Residues - Case Study
Plant: 1 x ZE-175-LT Low-Temperature Organic Rankine Cycle (ORC) Module, nominal output 175 kWe Nominal output: 175 kWe Application: Power generation in combination with a boiler burning biomass (pruning residues) Location: Province of Cosenza, Calabria,Italy) Manager: Private Italian firm The client who commissioned us this plant is an authorized solid waste manager, which started in 1993 ...
-
Waste composting as a component of ecological waste management in the Philippines
Ecological waste management (EWM) is a system of analyzing solid waste concerns and coming up with solutions that would not pose any harm to the environment. This would imply the use of technologies that are environmentally sound such as waste segregation, waste reduction at source, composting and recycling. Furthermore, this system ought to comply with the vision of sustainable development - ...
By ORBIT e.V.
-
Composting and biogasification for senna pod waste stabilization
A medical factory in Finland extracts sennocid from pods of a senna plant with a solvent containing methanol and water. Sennocid is the active compound in some constipation medicines (Otavan Iso Kasvitietosanankirja, 1981). The extraction process produces 50 m3 of pod waste weekly. In 1998, 757 tons of pod waste was produced. The water and methanol contents of the waste are approximately 25 w/w-% ...
By ORBIT e.V.
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you