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作 者:伍启文 巢真 王喜昭 徐莹 陈思源 韩红波 文武 田云 WU Qiwen;CHAO Zhen;WANG Xizhao;XU Ying;CHEN Siyuan;HAN Hongbo;WEN Wu;TIAN Yun(Hunan Sanyou Environmental Protection Co.,Ltd.,Changsha 410205,China)
机构地区:[1]湖南三友环保科技有限公司,湖南长沙410205
出 处:《工业水处理》2025年第4期186-193,共8页Industrial Water Treatment
基 金:“揭榜挂帅”重大科技项目(kq2301005)。
摘 要:污水处理厂应急扩建工程一直是水处理行业的难点,尤其是多工艺之间的耦合调控为应急扩建带来更大的风险和不确定性因素。为控制厂外管网溢流污染,湖南某污水处理厂需在90 d内将处理规模从6.0×10^(4) m^(3)/d应急扩建至1.2×10^(5) m^(3)/d,且施工期间不能停产、减产,不能带来次生风险。针对多工艺耦合调控的难点,采用高浓度复合粉末载体生物流化床技术(HPB技术)对现主体工艺AAO进行原池挖潜,并新建一体化二沉池和滤布滤池,通过前后多工艺联动调控,成功实现该污水厂应急扩建翻倍和安全运行。建成后处理水量稳定达到1.20×10^(5) m^(3)/d以上,出水稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准。工程设计、采购、施工和调试共耗时80 d,施工全过程实现不停产、不减产,未带来次生风险,对生产未造成消极影响。The emergency rescue and expansion project of sewage treatment plants has always been a difficult point in the water treatment industry,especially the coupling regulation of multiple processes brings greater risks and un-certainties to emergency rescue.To control the overflow pollution of the external pipeline network,a sewage treat-ment plant in Hunan needs to urgently expand its treatment capacity from 6.0×10^(4) m^(3)/d to 1.2×10^(5) m^(3)/d within 90 days,and production cannot be stopped or reduced during the construction period,which does not bring secondary risks.This project aims to address the difficulties of multi process coupling regulation.The advanced high concentra-tion composite powder carrier bio-fluidized bed technology(HPB technology)was used to explore the potential of the existing main process AAO in the original tank,and a new integrated secondary sedimentation tank and filter cloth filter tank were constructed.Through the linkage regulation of multiple processes before and after,the emergency ex-pansion and safe operation of the sewage treatment plant had been successfully doubled.After completion,the treated water volume would reach a stable level of 1.20×10^(5) m^(3)/d or above,and the effluent would meet the Class A standard of the Pollutant Discharge Standard for Urban Sewage Treatment Plants(GB 18918-2002).The design,pro-curement,construction,and commissioning of this project took a total of 80 days,and the entire construction process was achieved without stopping or reducing production,without bringing any secondary risks and causing negative impact on production.
关 键 词:多工艺耦合 高浓度复合粉末载体生物流化床技术 原池挖潜 一体化设备
分 类 号:X703[环境科学与工程—环境工程]
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