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Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion. [7] Swiss Kompogas and the Danish AIKAN process are examples of anaerobic digestion of biodegradable waste.
Biodegradable and compostable materials have been developed to ensure more of human waste is able to breakdown and return to its previous state, or in the case of composting even add nutrients to the ground. [45] When a compostable product is thrown out as opposed to composted and sent to a landfill, these inventions and efforts are wasted.
A resident adds kitchen food scraps to yard debris in a roll cart as part of the community's source separated organics (SSO) program. Source-separated organics (SSO) is the system by which waste generators segregate compostable materials from other waste streams at the source for separate collection.
Composting toilet at Activism Festival 2010 in the mountains outside Jerusalem. A composting toilet is a type of dry toilet that treats human waste by a biological process called composting. This process leads to the decomposition of organic matter and turns human waste into compost-like material.
Green waste does not include things such as dried leaves, pine straw, or hay. Such materials are rich in carbon and considered "brown wastes," while green wastes contain high concentrations of nitrogen. Green waste can be used to increase the efficiency of many composting operations and can be added to soil to sustain local nutrient cycling.
The current method of processing food waste into fertilizer, animal feed and biogas followed several failed experiments such as feeding raw food waste to ducks or composting it on large-scale ...
The city of L.A. is providing free kitchen waste pails to store food scraps for composting, although a plastic container with a lid will also work. (Jason Armond / Los Angeles Times)
Waste comes in many different forms and may be categorized in a variety of ways. The types listed here are not necessarily exclusive and there may be considerable overlap so that one waste entity may fall into one to many types.
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