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Funerary urns (also called cinerary urns and burial urns) have been used by many civilizations. After death, corpses are cremated , and the ashes are collected and put in an urn. Pottery urns, dating from about 7000 BC, have been found in an early Jiahu site in China, where a total of 32 burial urns are found, [ 1 ] and another early finds are ...
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 ...
A plastic is considered biodegradable if it can degrade into water, carbon dioxide, and biomass in a given time frame (dependent on different standards). Thus, the terms are not synonymous. Not all bioplastics are biodegradable. [44] An example of a non-biodegradable bioplastic is bio-based PET. PET is a petrochemical plastic, derived from ...
In typical parlance, the word biodegradable is distinct in meaning from compostable.While biodegradable simply means an object is capable of being decomposed by bacteria or other living organisms, "compostable" in the plastic industry is defined as able to decompose in aerobic environments that are maintained under specific controlled temperature and humidity conditions.
It uses high temperature water mixed with potassium hydroxide to dissolve human remains. [26] During this process, the body is put into an enclosed, stainless steel chamber. The chamber fills with the chemical and water solution and is then lightly circulated. After a couple of hours, the body is worn down and bone is the only thing that remains.
A wall mounted cigarette receptacle in Broadstairs, England. A cigarette receptacle is a container or device for extinguishing and disposing of cigarette waste. Other common names for cigarette receptacles include: ash urns, ash pans, cigarette butt receptacles, butt bins, butt holders, snuffers, smokers poles, cigarette waste receptacles, smokers waste receptacles, and ash/trash combinations.
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