表面以下土壤污染的原位生物恢复

In Situ Bioremediation of Contaminated Soil in Subsurface

土壤的不可流动性等特性使得土壤污染的治理难度很大．原位生物恢复技术应用于治理土壤污染，为这一难题的解决提供了可能的途径．原位生物恢复技术通过改善土著微生物的生态条件而提高其生物降解效能，同时也可以引入新的经培育驯化的或者经生物工程等方法获得的特异微生物，在目标土壤环境中建立新的微生物群落，使有效降解其中污染物质的微生物种群成为优势种群．引入外来微生物是该项技术的关键，且受土壤基质、生物特性和操作因素等的影响．

It's impossible to treat contaminated subsurface soil with a bioreactor in large scale. The technique,in situ bioremediation,as a new available way is being applied. It takes consideration to get higher biodegradation by improving ecological factors for indigenous microflora. It's important to introduce new microorganisms to the subsurface environment. Those introduced microorganisms could be specific for degrading target contaminants, and can settle to develop dominant populations. This procedure will be affected by soil matrix properties, organisms properties and operational factors.