The status of research on waste water treatment with chitosan and the adsorption capacity of heavy metals, organic acid, dye, protein etc. from waste water were summarized in this paper.

介绍了壳聚糖及其衍生物对废水中重金属、有机酸、染料和蛋白质等吸附性能的研究现状。

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Rather, as a consequence of injecting water and sand into the shale formation to crack the rocks so gas and oil will flow, massive amounts of waste water comes back to the surface with significant amounts of contaminants as a result of leaching out salt, heavy metals and trace amounts of radioactive materials from the rock formation itself.

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