制药综合废水的处理

针对甲红霉素、盐酸环丙沙星等医药中间体生产排放废水污染物浓度高,部分车间的ρ(CODCr)高达2.7×104mg/L,ρ(NH3-N)高达1.1×103mg/L的特点,采用含氨废水单独处理,废水浓缩结晶后回收铵盐;有机废水分质处理,高浓度废水预先气提、催化氧化,再与低浓度废水混合,采用铁炭-微电解-厌氧-好氧-气浮联合处理工艺,处理后出水达到国家污水综合排放一级标准。

Treatment of Synthetic Wastewater from Pharmaceuticals Production

In view of the feature of the wastewater discharged from the production of methyl erythromycin,ciprofloxacin hydrochloride capsule and other intermediates of pharmaceuticals that it has high content of pollutants in it(theρ(COD Cr )andρ(NH 3 -N)in some workshops were as high as2.7 × 10 4 mg / L and1.1 × 10 3 mg/L respectively),the ammonia-containing wastewater was treated separately and ammonium salt was recovered after the wastewater was concentrated and crystallized;while organic wastewater was treated separately depending on quality differences,i.e.,the high-concentration wastewater was stripped and catalytically oxidized before mixed with low-concentration wastewater,which was followed by the use of a combined treatment process consisting of ferrocarbon micro electrolysis-anaerobic-aerobic-air floatation.The quality of the outlet water after the treatment reached the national class-I standard for the comprehensive discharging of wastewater.