Thiss is how people here dispose of waste water.
这是当地人处理废水的方法。
Since the wastewater contains large amount of degreasing cleaners, directly dispose will lead to the waste of detergent and the overburden of water treatment.
被排放的废水中仍然含有大量脱脂剂，如果直接排放将造成试剂的浪费，同时也为水处理增加了负担。
Then they was used as flocculation agent in dispose of waste water of paper-ma de plant. And its mechanism of flocculation was discussed.
并以取自唐山造纸厂的污水为研究对象，用所制备的水溶性壳聚糖进行污水处理，探索其絮凝作用和机理。
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