摘要
针对兰炭废水高COD、高氨氮、B／C极低以及具有较强生物毒性的特点，采用具有自主知识产权的除油—微电解—吹氨—高效菌种生化技术—混凝沉淀—催化氧化联合工艺对兰炭废水进行处理。试验结果表明：兰炭废水经预处理工序后，B／C由0．1提高至0-3～0．6；生化工序处理后出水的COD和氨氮分别为300、15mg/L；最终通过深度处理后出水水质符合《炼焦化学工业污染物排放标准》（GB16171-2012）中的现有企业直接排放标准，该组合工艺对COD和氨氮的总去除率分别可达99．5％和99％。
Since semi-coking wastewater is characterized by high COD concentration,high NH3-N concentration, low B/C, and strong biological toxicity, the combined process deoil-microelectrolysis-NH3 stripping-dominant bacteria-coagulation-catalytic oxidation has been used for its treatment. The results indicate that its B/C goes up from 0.1 to 0.3-0.6 after the procedure of pretreatment. COD and NH3-N of effluent after biochemical treatment are 300 mg/L and 15 mg/L, respectively. After advanced treatment, the water quality accords with the direct discharge standard for established enterprises in the Emission Standard of Pollutants for Coking Chemical Industry （GB 16171-2012 ）. The total removing rates of COD and NH3-N by the combined processes can reach 99.5% and 99%, respectively.
出处
《工业水处理》
CAS
CSCD
北大核心
2013年第12期35-38,共4页
Industrial Water Treatment
基金
科技部科研院所开发专项资金支持项目(2008EG113044)
关键词
兰炭废水
微电解
生化处理
催化氧化
semi-coking wastewater
microelectrolysis
biochemical treatment
catalytic oxidation
