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CHAPTER 6 COMPOSTING, Biological decomposition of the biodegradable…
CHAPTER 6 COMPOSTING
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FACILITY DESIGN
Compost Systems
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In-Vessel
Type
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Open, horizontal, rectangular tank
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Plug-flow, horizontal tank
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ENVIRONMENTAL, PUBLIC & INDUSTRIAL HEALTH
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OBJECTIVES
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Destroy pathogens, insect eggs & other unwanted organims and weed seeds that may be present in MSW
Retain the maximum nutrients (Nitrogen, Phosphorus, Potassium) content
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Biological decomposition of the biodegradable organic fraction of Municipal Solid Waste (MSW) under controlled conditions to a state sufficiently stable for nuisance-free storage and handling and for safe use in land applications.
These organic material undergoes aerobic microbial decomposition and produce a humus material known as compost
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Water quality may adversely affected due to contamination from either leachate from raw, composting or composted refuse, or with runoff from compost operation
Biological & nonbiological agents may enter the environment from compost operation by way of dust particles or aerosols
foul odors from raw waste, generated from composting stages due to improper management of the composting process
Fly and rodent attraction due to the nature of organic residues, long time interval between reception of raw mat and the composting stages
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