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Other biodegradable wastes include human waste, manure, sewage, sewage sludge and slaughterhouse waste. In the absence of oxygen, much of this waste will decay to methane by anaerobic digestion. [4] In the UK, 7.4 million tonnes of biodegradable waste was sent to landfill in 2018 having reduced from 7.8 million tonnes in 2017. [5]
Paintball artillery ranges from howitzers, through mortars to anti-tank guns. These paintball weapons are usually made of PVC and wood combination, but heavy-metal steel replicas do sometimes appear. Their ammunition ranges from firing a cluster of paintballs, small water balloons, through small pyro-grenades (used in some mortars) to foam rockets.
Manufacturers and distributors have been making the effort to move away from the traditional oil-based paints and compressed CO 2 gas propellant, to a more friendly water-based formula and compressed air in an effort to become more "eco-friendly". Paintballs come in a variety of sizes, including of 13mm (0.50 in) and 17mm (0.68 in). [10]
Disposable plastic cups made from biodegradable plastic. Biodegradable plastics are plastics that can be decomposed by the action of living organisms, usually microbes, into water, carbon dioxide, and biomass. [1] Biodegradable plastics are commonly produced with renewable raw materials, micro-organisms, petrochemicals, or combinations of all ...
Biodegradable polymers are of great interest in the field of drug delivery and nanomedicine. The great benefit of a biodegradable drug delivery system is the ability of the drug carrier to target the release of its payload to a specific site in the body and then degrade into nontoxic materials that are then eliminated from the body via natural ...
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Biodegradable additives can convert the plastic degradation process to one of biodegradation. Instead of being degraded simply by environmental factors, such as sunlight ( photo-oxidation ) or heat ( thermal degradation ), biodegradable additives allow polymers to be degraded by microorganisms and bacteria through direct or indirect attack.
Ohio State quarterback Will Howard (18) holds a rose in his mouth as he poses with the trophy after the team won the quarterfinals of the Rose Bowl College Football Playoff against Oregon ...