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Removing such waste from the rest of the waste stream substantially reduces waste volumes for disposal and also allows biodegradable waste to be composted. Biodegradable waste can be used for composting or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion. [7]
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.
Potential sources of compostable materials, or feedstocks, include residential, agricultural, and commercial waste streams. Residential food or yard waste can be composted at home, [27] or collected for inclusion in a large-scale municipal composting facility. In some regions, it could also be included in a local or neighborhood composting project.
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 sewage farm in Hampshire, England. The resources available in wastewater and human excreta include water, plant nutrients, organic matter and energy content. Sanitation systems that are designed for safe and effective recovery of resources can play an important role in a community's overall resource management.
Modern society has has a big problem when it comes to plastic -- and it's contributing heavily to pollution and climate change. Globally, 400 million metric tons of plastic are produced each year ...
STORY: In Gloria Molina's household goods store in the Philippine capital Manila, toothpaste, instant coffee and laundry detergent go by the handful. A regular bottle of shampoo costs around $2 ...
A group of recyclers in the Philippines is trying to ease the country's worsening plastic waste crisis by turning bottles, single-use sachets and snack food wrappers that clog rivers and spoil ...