Nitrobenzenes compound is the high poisonous substance which is difficult to be biodegraded and can inhibit and poison biochemical reaction.
摘要硝基苯类化合物是高毒性物质，难以生物降解且对生化反应有抑制和毒害作用。
These former papers show that nitroaromatics and azo dyes are strong electron attracting, which make them difficult to be biodegraded in aerobic conditions.
回顾了硝基芳香化合物和偶氮化合物在厌氧条件下的生物脱毒、转化和矿化作用的研究成果。
Because coke sewage contains lots of hard-biodegraded and toxicant substances, It is considered to be one of the most difficult industrial wastewater to purify.
由于焦化废水中含有大量的难生物降解以及一些有毒还对微生物有害的物质，而且其可生化性差，因而焦化废水成为公认难处理工业废水之一。
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