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Composting (Definition (Biological transformation of biodegradable waste…
Composting
Definition
Biological transformation of biodegradable waste into water, CO2, energy and a composed matter
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For soil amendment, improve soil nutrients, reduces erosion and help suppress plant diseases.
These organic material undergoes microbial decomposition and produces a humus material known as compost
Organic fraction MSW can be composed of protein, amino acids, lipids, celullose, carbohydrate, lignin and ash
Objective
To transform the biodegradability organic materials into a biologically stable material and int he process to reduce the original volume of waste.
To destroy pathogens, insect,eggs, and other unwanted organisms and weed seeds that may present in MSW
To retain the maximum nutrient(nitrogen, phosphorus, and potassium) content.
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Applications
Yard waste such as leaves, small tress branches
Organic fraction of MSW such as food wastes, thin plastic, papers
Partially processed commingled MSW which is waste that are not separated before arriving at the processing site
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Step
Pre processing of MSW
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Adjust the waste properties such as carbon-nitrogen ratio, addition of moisture and nutrients
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