制药废水零排放技术应用研究

Research on the application of the zero discharge of the wastewater from pharmacy production

采用混凝、生化、反渗透(RO)和三效蒸发器组合工艺,对某制药企业生产废水进行深度处理。通过混凝沉淀、生化处理去除部分有机物和氮磷,然后利用RO系统去除剩余的有机物、氮磷和盐分,最后采用三效蒸发器对RO系统浓水进行蒸发浓缩。研究结果表明,出水水质可满足企业生产工艺用水水质要求,并达到零排放的目的 。

The wastewater from pharmacy production has been treated in depth by the combined process ,coagulation-biochemical treatment-RO（reverse osmosis）-triple effect evaporator. Part of organic matter,nitrogen and phospho-rus can be removed by coagulation precipitation and biochemical treatment. Then ,the residual organic matter ,phos-phorus,nitrogen and salinity can be removed by the RO System. At the end,the RO system concentrated water can be evaporated and concentrated by the triple-effect evaporator. The result shows that the effluent quality can meet the water quality requirements for enterprise production technologies and reach the goal of zero discharge.