The experiment used the phosphoric-acid-ester-amine as a flocculant, and cooperated with liquor of Al2(SO4)3 to dispose waste water of nature gas well in east of Sichuan,and attained available result.

• 以磷酸酯胺盐作为絮凝剂,与Al2(SO4)3溶液复配使用,在对川东天然气钻井废水的絮凝处理实验中获到一定效果。