Cometabolic Bioremediation
Cometabolic Bioremediation
复制标题
DOI：
10.1007/978-3-319-44535-9_5-1
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
T. Hazen
中科院分区：
文献类型：
--
作者：
T. Hazen
代谢生物修复可能是目前最不被重视的生物修复策略。共代谢策略只刺激具有降解污染物和共底物（如甲烷、丙烷、甲苯等）能力的本地微生物。这种高度针对性的增产措施确保了只有那些能够降解污染物的微生物才能成为目标，从而降低了改造成本、井和地层堵塞等问题。com代谢性生物修复已被用于一些最顽固的污染物，如PCE、TCE、MTBE、TNT、二恶烷、阿特拉津等。甲烷氧化菌已经被证明可以产生甲烷单氧，一种可以降解300多种化合物的氧化酶。由于生物降解剂不依赖于污染物的碳或能量，生物代谢生物修复还具有能够将污染物降解到痕量浓度的优势。我们越来越多地发现，为了保护人类健康和环境，我们必须使其浓度越来越低，特别是像内分泌干扰物这样的化合物，因此共同代谢可能是最好的，也许是唯一的可能，我们必须对一些污染物进行生物修复。
Cometabolic bioremediation is probably the most under appreciated bioremediation strategy currently available. Cometabolism strategies stimulate only indigenous microbes with the ability to degrade the contaminant and cosubstrate eg methane, propane, toluene and others. This highly targeted stimulation insures that only those microbes that can degrade the contaminant are targeted, thus reducing amendment costs, well and formation plugging, etc. Cometabolic bioremediation has been used on some of the most recalcitrant contaminants, eg PCE, TCE, MTBE, TNT, dioxane, atrazine, etc. Methanotrophs have been demonstrated to produce methane monooxygense, an oxidase that can degrade over 300 compounds. Cometabolic bioremediation also has the advantage of being able to degrade contaminants to trace concentrations, since the biodegrader is not dependent on the contaminant for carbon or energy. Increasingly we are finding that in order to protect human health and the environment that we must remediate to lower and lower concentrations, especially for compounds like endocrine disrupters, thus cometabolism may be the best and maybe the only possibility that we have to bioremediate some contaminants.