摘要
采用内电解预处理,研究组合工艺上流式厌氧污泥床(UASB)A/O2下污染物转化降解特性.结果表明:最佳工况条件下,当进水化学需氧量(COD)和酚质量浓度分别为2 500mg.L-1和320.0mg.L-1时,最终出水COD低于150mg.L-1,酚质量浓度小于0.1 mg.L-1.气质联仪(GCMS)分析表明:内电解预处理可降解杂环化合物、降低废水的毒性,有利于后续生化处理;UASB能有效地将焦化废水中的多支链酚类转化为结构相对简单的酚类,对喹啉类化合物有较高的去除率;经过缺氧和接触氧化处理后,出水有机物种类大量减少.
A study was conducted in treating coking wastewater by inner electrolysis-UASB （upflow analerobic sludge bed） A/O process, with electrolysis as the pretreatment technology. The results show that on optimal operation condition, the chemical oxygen demand （COD） and phenol concentration pretreated by inner electrolysis, can decrease from 2 500 mg·L-1 and 320.0 mg·L-1 in influent to below 150 mg ·L-1 and 0. 1 mg ·L-1 in effluent, respectively. According to gas chromatography-mass spectrometer （GC-MS） analysis, the inner electrolysis pretreatment can degrade heterocyclic compounds, which contributes to the biodegradability improvement of the units followed, while the UASB can effectively change multibranched phenol into a relatively simple structure and it is of a high removal rate of quinolone. The GC-MS analysis also indicates that the effluent has a sharp reduction in its organic categories by adopting the A/O2 process.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第1期110-115,共6页
Journal of Tongji University:Natural Science
基金
"十一五"国家科技支撑计划(2006BAJ04A09)
