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催化臭氧化-MBR工艺深度处理制药废水实验研究.pdf

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第50卷第3期 应用化工 Vol- 50 No- 3 2021年3月 Appeoed ChemocaeIndustey Mar- 2021 催化臭氧化-MBR工艺深度处理制药 废水实验研究 杨文玲,王坦 (河北科技大学化工学院,河北石家庄050018) 摘要:采用臭氧催化氧化耦合膜生物反应器 (MBR)处理工业高浓度制药废水 。考察了臭氧催化氧化不同停留时 间的影响,非均相臭氧催化剂的稳定性以及经过臭氧催化氧化后进行生化处理性能%结果表明,臭氧催化氧化停 留时间90 mO ,污泥浓度 (MLSS )为10.00 /B,COD处理负荷为1.2 k/( m3 - d),HRT为18 h条件下,非均相臭氧 催化剂对该制药废水具有稳定的COD去除率,经过连续运行50 d每天运行8 h ,臭氧催化剂展现出较好的稳定性, COD去除率基本可以稳定在45%左右 。臭氧催化氧化耦合MBR组合工艺相比单独MBR工艺其COD去除率提高 26%左右、氨氮提高36%左右,其中氨氮满足GB 21903—2008排放要求% 关键词:催化臭氧化;臭氧;MBR ;制药废水 中图分类号:TQ 032.41 ;TQ 123.1 ;X 703- 1 文献标识码:A 文章编号:1671 -3206 (2021)03 -0708 -04 Advanced treatmept of pharmaceutical wastewater by catalytic ozonation-MBR combined process YANG Wee-ling,WANG Tan (School of Chemical and Pharmaceutical EngineeOng, Hebei Univeoity of Science and Technolo/, Shoeoaehuang050018, Chona) Absera-e :Th+ondusteoaehogh-conc+nteatoon phaemac+utocaewastwatewaste+atd byan oeon+cataeytoc oxiOation coupling membrane bio/xctoO MBR) - The effects of dOerent residence tioe of ozone catalytic oiodatoon ,thestaboeotyoeheteeogeneousoeonecataeystand thepeeeoemanceoeboochemocaeteeatmentaetee oeonecataeytocoiodatoon weeeonvestogated.Theeesuetsshowed thattheeetentoon tomeoeoeonecataeytoc oxiOation was 90 min, the sludge concentration ( MLSS ) was 10. 00 /L, the COD tolni/it load was 1.2 k/( m3 + d) , and tie HRT was 18 h. The heterogeneous ozone catalyst had a stable COD removcl rate for the pha/naceutical wastewater. After 50 d of continuous operation for 8 h eve- day, the ozone cat­ alyst showed a good stability, and tie COD re
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