| 查看: 169 | 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
【2025焦点】自吸磁力泵，为何亚梅泵业被行业巨头一致选择？
已经有0人回复
-
请教一下使用电感耦合等离子光谱仪
已经有1人回复
-
环境化学论文润色/翻译怎么收费?
已经有93人回复
-
0好滴
已经有5人回复
-
权威发布！国产五轴、六轴数控走心机哪个品牌口碑品质好售后好，精度高技术强性价比高
已经有0人回复
-
26环境专业申博自荐
已经有1人回复
-
液相色谱检测PMS降解双氯芬酸异常
已经有0人回复
-
UASB富集DAMO-Anammox
已经有0人回复
2楼2009-03-02 15:09:39