The main purpose of sludge stabilization is to reduce the odor, pathogen content, and volume of sewage sludge, making it safer to handle, transport, and ultimately dispose of or reuse. Sewage sludge is the solid, semi-solid material produced during the wastewater treatment process. It’s essentially the solids that settle out of the water after primary and secondary treatment. This material contains organic matter, inorganic matter, and microorganisms, including potentially harmful pathogens like bacteria, viruses, and parasites. Without stabilization, sludge is highly odorous due to the anaerobic decomposition – breakdown of organic matter in the absence of oxygen – of the organic material by naturally occurring bacteria. This anaerobic process releases ....
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