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高密度发酵制药工业不同来源废水污染物含量差异大。设计采用分类处理方式,对产生量小、污染物含量高的发酵废水和污冷凝水混合液通过吹脱除氨、MAP沉淀除氨脱磷及Fenton法除COD后达标排放;对产生量大、污染物含量低的洗涤废水和生活污水混合液通过PAC和PAM混凝沉淀后达标排放。MAP沉淀除氨脱磷药剂选用硫酸镁和磷酸氢二钠,采用pH8～10,投药比采用n(Mg2+):n(PO43-):n(NH4+)=1.4:1.2:1。该工艺废水综合处理成本约为0.79元/m3,费用低、效果可靠,且变氮磷污染物为优质肥MAP,实现变废为宝。
Different sources of high density fermentation pharmaceutical industry wastewater pollutant content differences. Design classification treatment, the amount of small, high pollutant content of fermentation waste water and sewage condensate mixture by blowing ammonia removal, MAP precipitation removal of ammonia dephosphorization and COD removal after COD discharge standards; the amount of large, The low content of pollutant washing wastewater and domestic sewage mixture through PAC and PAM coagulation and sedimentation standards discharge. MAP precipitated ammonia dephosphorylation agent selected magnesium sulfate and disodium hydrogen phosphate, the use of pH8 ~ 10, than the use of n (Mg2 +): n (PO43 -): n (NH4 +) = 1.4: 1.2: The comprehensive cost of the process wastewater is about 0.79 yuan / m3, the cost is low, the effect is reliable, and the change of nitrogen and phosphorus pollutants into high-quality fertilizer MAP, to achieve turning waste into treasure.