It has been proved that the recovery and utilization of the sludge and recycling of the treated waste water are highly important.
研究结果也表明，污泥的回收利用以及处理过的废水循环回用至关重要。
The fields of application are dewatering and thickening of sewage sludge in municipalities and industries, treatment of drinking water and recovery of valuable materials from production streams.
主要应用在市政废水和工业废水的脱水和浓缩处理、饮用水加工以及在生产加工过程中回收有用物料等处理环节中所需的脱水和浓缩处理。
The activated sludge from waste water treatment plants in oilfields and oil refining factories was used to increase oil recovery.
本研究利用油田污水处理站和炼油厂的活性污泥来提高原油采收率。
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