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According to the waste hierarchy, burning agricultural waste for the sake of energy generation is a less environmentally friendly treatment method than recycling or reusing it. Moreover, incineration for energy generation can be done once, while consumer goods (such as paper made from agricultural waste) can be recycled another seven times. [ 26 ]
Home compost barrel Compost bins at the Evergreen State College organic farm in Washington Materials in a compost pile Food scraps compost heap. Composting is an aerobic method of decomposing organic solid wastes, [8] so it can be used to recycle organic material. The process involves decomposing organic material into a humus-like material ...
Home composting pile with added kitchen waste. There are various types of organic waste that can be used to compost at home. Composting requires two types of organic materials: "green" waste and "brown" waste. [7] This is due to organic waste requiring four elements to decompose: nitrogen, carbon, oxygen, and water.
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Sewage farms use sewage for irrigation and fertilizing agricultural land. The practice is common in warm, arid climates where irrigation is valuable while sources of fresh water are scarce . Suspended solids may be converted to humus by microbes and bacteria in order to supply nitrogen , phosphorus and other plant nutrients for crop growth.
Treatment disposal of human excreta can be categorized into three types: fertilizer use, discharge and biogas use. Discharge is the disposal of human excreta to soil, septic tank or water body. [75] In China, with the impact of the long tradition, human excreta is often used as fertilizer for crops. [76]
Waste management or waste disposal includes the processes and actions required to manage waste from its inception to its final disposal. [1] This includes the collection , transport , treatment , and disposal of waste, together with monitoring and regulation of the waste management process and waste-related laws , technologies, and economic ...
The human sewage and the process waste from the manufacturing industries are the two major sources of the waste water. In Thailand, the total volume of the wastewater from industries is much greater than that of the domestic sewage. [2] As a result, an effective method is needed.