| 查看: 172 | 回复: 1 | ||
| 【奖励】 本帖被评价1次，作者snoopyzhao增加金币 1 个 | ||
| 当前主题已经存档。 | ||
[资源]
[Ebook] Environmental Biodegradation Research Focus
|
||
 Environmental Biodegradation Research Focus by B.Y. Wang Publisher: Nova Science Publishers | ISBN: 1600219047 | edition 2008 | PDF | 320 pages | 9,39 mb This new book is devoted to leading-edge research on environmental biodegradation which is the destruction of organic compounds by microorganisms. Microorganisms, particularly bacteria, are responsible for the decomposition of both natural and synthetic organic compounds in nature.Mineralisation results in complete conversion of a compound to its inorganic mineral constituents (for example, carbon dioxide from carbon, sulphate or sulphide from organic sulphur, nitrate or ammonium from organic nitrogen, phosphate from organophosphates, or chloride from organochlorine). Since carbon comprises the greatest mass of organic compounds, mineralisation can be considered in terms of CO2 evolution. Radioactive carbon-14 (14C) isotopes enable scientists to distinguish between mineralisation arising from contaminants and soil organic matter. However, mineralization of any compound is never 100 per cent because some of it (10-40 per cent of the total amount degraded) is incorporated into the cell mass or products that become part of the amorphous soil organic matter, commonly referred to as humus.Thus, biodegradation comprises mineralisation and conversion to innocuous products, namely biomass and humus. Primary biodegradation is more limited in scope and refers to the disappearance of the compound as a result of its biotransformation to another product. Compounds that are readily biodegradable are generally utilised as growth substrates by single microorganisms. Many of the components of petroleum products (and frequent ground-water contaminants), such as benzene, toluene, ethylbenzene, and xylene, are utilised by many genera of bacteria as sole carbon sources for growth and energy. [DOWNLOAD] |
回复此楼» 猜你喜欢
浙江大学徐腾飞研究员招聘环境污染与健康、组学分析、生信、模拟计算等背景博士后
已经有6人回复
-
浙江大学徐腾飞研究员招聘环境科学、组学分析、生信、环境科学、模拟计算等背景博士后
已经有1人回复
-
建筑环境与结构工程论文润色/翻译怎么收费?
已经有245人回复
-
浙江大学徐腾飞研究员招聘代谢组学、蛋白组学、生信、环境科学、模拟计算等背景博士后
已经有2人回复
-
深圳市新联兴精密压铸有限公司迁扩建项目竣工环境保护验收公示
已经有0人回复
-
2026年第七届人工智能与计算机应用国际会议(ICAICA 2026)
已经有6人回复
2楼2009-03-02 15:09:39