LINDa,ZHAOXun-xia,QINHui.Treatment of Industrial Park Wastewater by Modified Bardenpho, Ozone Oxidation and BAF Process[J].China Water & Wastewater,2022,38(14):89-92.
改良Bardenpho-臭氧-BAF处理工业园区污水
- Title:
- Treatment of Industrial Park Wastewater by Modified Bardenpho, Ozone Oxidation and BAF Process
- Keywords:
- industrial park; hydrolytic acidification; modified Bardenpho; ozone contact oxidation; BAF; denitrification filter
- 摘要:
- 广西某工业园区污水处理厂主要出水指标要求满足《地表水环境质量标准》（GB 3838—2002）Ⅳ类标准（TN≤10 mg/L除外），设计采用“水解酸化+改良Bardenpho +高效沉淀池+臭氧接触氧化+BAF+反硝化滤池+接触消毒”工艺。其中水解酸化池采用脉冲布水方式，水力停留时间8.1 h；改良Bardenpho总停留时间24 h，混合液内回流比150%~250%，污泥龄15 d，采用可提升式曝气系统，气水比9.6∶1；二沉池表面负荷0.75 m3/（m2·h）；高效沉淀池表面负荷9.92 m3/（m2·h），总停留时间60.5 min；臭氧接触池停留时间60 min，投加浓度20 mg/L；曝气生物滤池水力负荷3.04 m3/（m2·h），COD去除负荷1.46 kg/（m2·d）；反硝化滤池正常滤速5.76 m/h，强制滤速7.2 m/h；接触消毒停留时间30 min，次氯酸钠投加浓度8~10 mg/L。实际出水水质满足设计要求。
- Abstract:
- In order to meet the level Ⅳ criteria except TN≤10 mg/L in Environmental Quality Standards for Surface Water (GB 3838-2002) for an industrial park wastewater treatment plant in Guangxi, the combined process of hydrolytic acidification, modified Bardenpho, ozone contact oxidation, biological aerated filter (BAF), denitrification filter and contact disinfection was used. Among them, the hydrolytic acidification tank adopts the pulse water distribution method with the hydraulic retention time of 8.1 h. The hydraulic retention time of modified Bardenpho is 24 h, the reflux ratio in the mixed liquid is 150% to 250%, the sludge retention time (SRT) is 15 d, and the liftable aeration system is adopted with the gas-water ratio of 9.6∶1. The surface load of the secondary sedimentation tank is 0.75 m3/(m2·h), and that of the high-efficiency sedimentation tank is 9.92 m3/(m2·h) with the total residence time of 60.5 min. The residence time of ozone contact tank is 60 min with the O3 dosing concentration of 20 mg/L. The hydraulic load of BAF is 3.04 m3/(m2·h), and the COD removal load is 1.46 kg/(m2·d). The normal filtration rate of denitrification filter is 5.76 m/h, and its mandatory filtration rate is 7.2 m/h. The residence time of contact disinfection is 30 min with the dosing sodium hypochlorite concentration of 8-10 mg/L. The actual effluent quality meets the design requirement.
相似文献/References:
[1]徐俊,张荣社,谢丽,等.工业园区污水处理厂的执行标准与排放模式分析[J].中国给水排水,2021,37(20):16.
XU Jun,ZHANG Rong-she,XIE Li,et al.Analysis on Implementation Standard and Discharge Mode of Industrial Park Wastewater Treatment Plants[J].China Water & Wastewater,2021,37(14):16.
[2]姜鸣,石芳永,顾雪峰,等.工业园区污水厂准Ⅳ类水质提标改造工程设计[J].中国给水排水,2022,38(2):59.
JIANG Ming,SHI Fang?yong,GU Xue?feng,et al.Design of a Wastewater Treatment Plant Upgrading Project in an Industry Park to Meet Quasi?Ⅳ Surface Water Standard[J].China Water & Wastewater,2022,38(14):59.
[3]胡双意,訾茜,邓先涛,等.多元催化氧化+改良A2/O工艺处理工业园区废水[J].中国给水排水,2022,38(18):68.
HUShuang-yi,ZIQian,DENGXian-tao,et al.Application of Multi-element Catalytic Oxidation and Modified A2/O Process in the Treatment of Wastewater from Industrial Park[J].China Water & Wastewater,2022,38(14):68.
[4]周国标,吕银忠,郑望,等.工业园区污水厂出水提至地表水Ⅴ类标准改造工程[J].中国给水排水,2022,38(18):87.
ZHOUGuo-biao,LüYin-zhong,ZHENG Wang,et al.Retrofitting Project of an Industrial Park WWTP to Meet Level Ⅴ Surface Water Standard[J].China Water & Wastewater,2022,38(14):87.
[5]徐家栋,彭孔曙,陈李庆,等.制药废水处理工程调试及运行研究[J].中国给水排水,2023,39(4):96.
XUJia-dong,PENGKong-shu,CHENLi-qing,et al.Commissioning and Operation of a Pharmaceutical Wastewater Treatment Project[J].China Water & Wastewater,2023,39(14):96.