Characteristics of Tertiary Treatment on Complex Chemical Secondary Wastewater
Biochemical characteristics of chemical secondary effluent in tertiary treatment were studied with a piloted system of biological contact aerators to meet limits of national discharge. The results showed that biochemical characteristics of the secondary effluent had higher concentrations of residual COD and NH3-N, as well as lower residual concentrations of BOD5 and alkalinity. Residual COD in the effluent consisted mainly of three parts included the non-biodegradable COD presented by organic matter of toxicity, the soluble COD presented by BOD5, and the participate COD presented by SS. Under conditions of most nonbiodegradable COD concentration of 132.70 mg/L and less alkality of 1.50mmol/L, COD concentration was decreased less than 100 mg/L, and NHj-N effluent concentrations were decreased from 30.44 mg/L to 14.79 mg/L, and a scientific basis of reference was provided for reforming the pulse flocculated clarifier system which can meet limits of national discharge.
biochemical characteristic chemical secondary effluent non-biodegradable COD paniculate COD soluble COD
Jingming Liu Yanyan Chen Hui Liu Le Shi Zhirong Zhu Ji Ma
School of Chemical Engineering, Northeast Dianli University,Jilin, Jilin 132012,China Post-doctoral School of Chemical Engineering, Northeast Dianli University,Jilin, Jilin 132012,China Department of Chemistry,Tongji University, Shanghai 200092, China Post-doctoral scientific research Station,Jiangsu Suzhou Purification Group Co.,Ltd, Suzhou 215122,
国际会议
2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)
长沙
英文
383-386
2010-12-18（万方平台首次上网日期，不代表论文的发表时间）