CAJ | 학술논문

偶氮染料废水具有高CODCr、高色度、有机物成分复杂等特点。根据清污分流的原则，确定处理工艺方案为：首先对高浓度偶氮染料工艺废水采用中和—电解—臭氧氧化进行预处理后，再与低浓度废水按比例混合混凝处理。经大量工艺实验确定全流程工艺条件为：废水pH中性、电解电压10 V、电流密度0.018 A/cm2、电解时间2 h,O3氧化时间为2 h，混凝剂环保1#和3#浓度各为250 mg/L。CODCr、色度的去除率分别可以达到99.6%，99.9%。可以达标排放。
우담염료폐수구유고CODCr、고색도、유궤물성분복잡등특점。근거청오분류적원칙，학정처리공예방안위：수선대고농도우담염료공예폐수채용중화—전해—취양양화진행예처리후，재여저농도폐수안비례혼합혼응처리。경대량공예실험학정전류정공예조건위：폐수pH중성、전해전압10 V、전류밀도0.018 A/cm2、전해시간2 h,O3양화시간위2 h，혼응제배보1#화3#농도각위250 mg/L。CODCr、색도적거제솔분별가이체도99.6%，99.9%。가이체표배방。
he wastewater of azo dye is characterized with high CODCr,high colority and complication of organic components. According to the characteristic of the wastewater, the high concentration wastewater of azo dye was firstly pre-treated by neutralization-electrolysis-ozonization process,then was compounded with low concentration wastewater in proportion,and treated by coagulating process.The whole process optimum conditions were determined as follows:pH of neutrality,10 V of electrolysis voltage,0.018 A/cm2 of electrical current density,2 h of ozonization, 250 mg/L of environment-protecting coagulant 1#,3#.The removal rates of CODCr and colority are 99.6% and 99.9% respectively. The effluent quality can reach requirements of wastewater discharge standards.