红薯淀粉生产废水是高浓度有机废水，废水中主要含有糖类、蛋白质、纤维素、脂肪等污染物。
Sweet potato starch industry brings high concentration organic wastewater, it mainly contain sugar, protein, cellulose and fat etc.
乐安河流域目前由于受沿岸工业废水、生活污水等的污染，致使该河的许多污染指标超标。
Presently, many pollutants cannot meeting discharging standard in Le 'an river because of the pollution from industry wastewater and municipal wastewater and so on.
石油的开采、冶炼和运输过程的污染和泄漏及含油废水的排放等已成为土壤污染的重要来源。
The pollution produced in the process of oil exploitation, refining, transporting and waste oily water draining has become an important resource to soil contamination.
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