MEIHui-rui,WANGChi,FUXian-song,et al.An Engineering Example of Aerobic Granular Sludge Technology for Treating Industrial Wastewater[J].China Water & Wastewater,2024,40(4):84-88.
好氧颗粒污泥技术的工业废水处理工程实例
- Title:
- An Engineering Example of Aerobic Granular Sludge Technology for Treating Industrial Wastewater
- Keywords:
- aerobic granular sludge technology; industrial wastewater; simultaneous nitrogen and phosphorus removal; high efficiency and energy-saving
- 摘要:
- 浙江某工业园区新建污水厂设计规模为2×104 m3/d，基于用地紧张、水质排放标准提高的现状，确定以生物池（以SBR为基础的好氧颗粒污泥技术）+高效澄清池+反硝化深床滤池为主体工艺的设计方案。相较原污水厂的活性污泥法（一、二期分别采用CASS、A2O工艺），本工艺节省占地约40%、降低运行费用30%以上。启动调试期间，在进水COD、氨氮、总氮、总磷分别为360~660、20~42、35~55、1.65~3.66 mg/L波动的情况下，出水COD、氨氮、总氮、总磷分别保持在38、1.9、10.5、0.3 mg/L以下，满足浙江省《城镇污水处理厂主要水污染物排放标准》（DB 33/2169—2018）要求。后期培养出的颗粒污泥粒径达到1.4 mm以上，污泥体积指数（SVI）保持在30 mL/g以下，混合液悬浮固体浓度（MLSS）由4.28 g/L增加至10.64 g/L。该项目为好氧颗粒污泥技术在国内首次大型工程化的成功案例，对该技术的应用具有指导意义。
- Abstract:
- The design scale of a new wastewater treatment plant in an industrial park in Zhejiang Province is 2×104 m3/d. The main process consisting of biological tank (aerobic granular sludge technology based on SBR), high-efficiency clarifier and denitrification deep-bed filter was designed because of the shortage of land and the stricter effluent discharge standards. Compared with the activated sludge process used in the original wastewater treatment plant (the phase Ⅰ and Ⅱ adopted CASS and A2O process respectively), the process saved approximately 40% of the footprint area and reduced the operating cost by more than 30%. During the start-up and commissioning period, the influent COD, ammonia nitrogen, total nitrogen and total phosphorus fluctuated in the ranges of 360-660 mg/L, 20-42 mg/L, 35-55 mg/L and 1.65-3.66 mg/L respectively, while the effluent COD, ammonia nitrogen, total nitrogen and total phosphorus remained below 38 mg/L, 1.9 mg/L, 10.5 mg/L and 0.3 mg/L respectively, which met the limits specified in Discharge Standard for Major Water Pollutants for Municipal Wastewater Treatment Plant (DB 33/2169-2018) of Zhejiang Province. In the later period, the particle size of the cultured granular sludge reached 1.4 mm or more, the sludge volume index (SVI) remained below 30 mL/g, and the mixed liquid suspended solid concentration (MLSS) increased from 4.28 g/L to 10.64 g/L. This project has become the first successful case of large-scale aerobic granular sludge process in China, and has guiding significance for the application of aerobic granular sludge technology.
相似文献/References:
[1]林旭,刘彩虹,刘乾亮,等.膜蒸馏技术处理工业废水研究进展[J].中国给水排水,2022,38(10):46.
LINXu,LIUCai-hong,LIUQian-liang,et al.Research Progress on Membrane Distillation Technology in Industrial Wastewater Treatment[J].China Water & Wastewater,2022,38(4):46.
[2]肖宁,唐国卿,周家中,等.纯膜MBBR+A/O双泥系统用于制药废水脱氮工程[J].中国给水排水,2022,38(14):93.
XIAONing,TANG Guo-qing,ZHOUJia-zhong,et al.Application of Pure MBBR and A/O Double Sludge System in Pharmaceutical Wastewater Denitrification Project[J].China Water & Wastewater,2022,38(4):93.
[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(4):68.
[4]蓝伊淼,石明岩,林劭楠,等.类施氏矿物对工业废水中Cr(Ⅵ)的去除[J].中国给水排水,2023,39(19):101.
LANYi-miao,SHIMing-yan,LINShao-nan,et al.Schwertmannite-like Mineral Materials for Removal of Cr(Ⅵ) from Industrial Wastewater[J].China Water & Wastewater,2023,39(4):101.