Method and apparatus for destroying organic contaminants in aqueous
liquids
    2.
    发明授权
    Method and apparatus for destroying organic contaminants in aqueous liquids 失效
    用于破坏含水液体中有机污染物的方法和装置

    公开(公告)号:US5246584A

    公开(公告)日:1993-09-21

    申请号:US920961

    申请日:1992-07-28

    摘要: A method and apparatus for destroying organic contaminants, such as trichloroethylene, in aqueous liquids, such as groundwater, utilizing steam stripping integrated with biodegradation. The contaminated aqueous liquid is fed into a steam stripper causing the volatilization of essentially all of the organic contaminants and a portion of the aqueous liquid. The majority of the aqueous liquid is discharged from the steam stripper. The volatilized vapors are then condensed to the liquid phase and introduced into a bioreactor. The bioreactor contains methanotrophic microorganisms which convert the organic contaminants into mainly carbon dioxide. The effluent from the bioreactor is then recycled back to the steam stripper for further processing.

    摘要翻译: 一种用于在含水液体如地下水中破坏有机污染物如三氯乙烯的方法和装置,利用与生物降解相结合的汽提。 将污染的含水液体进料到蒸汽汽提器中,导致基本上所有的有机污染物和一部分含水液体的挥发。 大部分含水液体从蒸汽汽提器排出。 然后将挥发的蒸汽冷凝至液相并引入生物反应器。 生物反应器含有将有机污染物转化为主要二氧化碳的甲烷营养微生物。 然后将来自生物反应器的流出物再循环回蒸汽汽提塔进行进一步处理。