全文总字数：5971字
文献综述
医药公司废水处理工艺综述摘要：随着医药工业的发展，制药废水已逐渐成为重要的污染源之一，制药废水成分复杂，药物的生产过程，决定了制药废水的特点。
药物的生产是通过化学合成工艺和药用植物中分离提纯得到原料药，其因药物种类不同，生产工艺不同且流程复杂，原辅材料种类多，生产过程对原料和中间体质量控制严格，物料净收率较低，副产品多，导致 制药废水具有成分差异大，组分复杂，污染物量多，COD 高，BOD5 和 CODcr 比值低且波动大，可生化性很差，难降解物质多，毒性强，间歇排放，水量水质及污染物的种类波动大等特点，给治理带来了极大的困难。
制药废水的处理技术可归纳为以下几种：生物处理法、化学处理法、物理化学处理法、物理处理法等四种，各种处理方法具有各自的优势及不足。
关键字：制药废水，COD，生物处理法，化学处理法，物理化学处理法。
Review of wastewater treatment process in pharmaceutical companiesAbstract: With the development of pharmaceutical industry, pharmaceutical wastewater has gradually become an important source of pollution.The composition of pharmaceutical wastewater is complex, and the production process of drugs determines the characteristics of pharmaceutical wastewater.Drug is made by chemical synthesis process and separation and purification of active pharmaceutical ingredients, medicinal plants from different drugs, production technology and process complex, different types of raw and auxiliary materials, production process of raw materials and intermediates, strict quality control, material net yield is low, the by-product, pharmaceutical wastewater has a large difference of composition, composition is complex, pollutant capacity is much, high COD, BOD5 and CODcr ratio low and shaky and biochemical availability is very poor, refractory material, more strong toxicity, intermittent discharge, water quality and type of pollutant characteristics of volatility, has brought great difficulties to the governance.Pharmaceutical wastewater treatment technology can be summarized as the following: biological treatment method, chemical treatment method, physical chemical treatment method, physical treatment method and so on four kinds, each treatment method has its own advantages and disadvantages.Keywords: pharmaceutical wastewater, COD, biological treatment method, chemical treatment method, physical and chemical external method一、制药废水处理工艺1.导言在制药生产中，该车间所排放的废水量巨大，且排放时间集中，是废水处理的重难点[1]。
制药废水具有高 COD、高氨氮、高盐等特点，其可生化性差，属高浓度难降解有机废水。
[2]随意排放会对环境造成极大危害。
因地制宜的选择最适的改良工艺，改进后的工艺不仅要在原有基础上达到更高的处理标准，还要符合绿色经济的原则。
水生态系统体现了人与水的和谐共存与协调发展，实现一个企业的可持续发展。
