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污泥处理

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摘要 污泥泛指由水处理各单元产生的固液混合物,其固含量一般在0.25-12%之间。由于环保标准日益提高,污水必须经过处理才能排放,因此污泥产生量日益增加。污泥组成成份十分复杂,变异性大,水份比例极高而不易脱水,增加了处理难度。废水中所含的有机物、重金属、致病微生物等有害物质被浓缩在污泥中,如果处理不当,有可能对环境造成更严重的污染。
作者 李娟
出处 《城镇供水》 2006年第3期28-30,共3页 CITY AND TOWN WATER SUPPLY
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