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remove this template message ) ( learn how and when to remove this template message ) pumpkin seedlings planted out on windrows of composted biosolids biosolids is a term used for several types of treated sewage sludges that can be used as soil conditioner . [ ] treated sewage sludge has long been used in...
a type of wastewater that is produced by a community of people. it is characterized by volume or rate of flow , physical condition, chemical and toxic constituents, and its bacteriologic status (which organisms it contains and in what quantities). it consists mostly of greywater (from sinks, tubs, showers...