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2022年《国家先进污染防治技术目录》入选技术案例丨耦合沉淀矩形气升环流生物反应器污水处理技术

2023-01-14 09:35:58来源:中国环保产业协会 阅读量:13253

导读:耦合沉淀矩形气升环流生物反应器污水处理技术,采用标准规格的气升循环生化装置,组合生化与沉淀功能,高效截留活性污泥,结合脱氮除磷工艺,实现污水高效处理。
  导 读
 
  日前,生态环境部办公厅印发了2022年《国家先进污染防治技术目录(水污染防治领域)》(环办科财函〔2022〕500 号)(以下简称“目录”)。为便于各相关方使用目录,我会编制了目录典型应用案例,将陆续在微信平台上发布。所有案例均来自目录入选技术的申报材料,案例内容经业主单位和申报单位盖章确认。
 
  技术名称
 
  耦合沉淀矩形气升环流生物反应器污水处理技术
 
  技术依托单位
 
  清研环境科技股份有限公司
 
  工艺路线
 
  污水经预处理后进入厌氧池完成释磷,然后进入缺氧池与回流的硝化液进行反硝化脱氮,缺氧池出水进入矩形气升环流生物反应器去除氨氮等污染物,反应器出水进入深度处理单元进一步去除SS和TP,出水经消毒后达标排放。系统产生的污泥经脱水后外运处置。
 
  主要技术指标
 
  进水COD≤400mg/L、BOD5≤200mg/L、SS≤200mg/L、氨氮≤40mg/L、TN≤50mg/L、TP≤5mg/L,出水达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准要求,其中COD、BOD5、氨氮、TP可达到《地表水环境质量标准》(GB 3838-2002)中IV类标准限值要求。
 
  技术特点
 
  采用标准规格的气升循环生化装置,组合生化与沉淀功能,高效截留活性污泥,结合脱氮除磷工艺,实现污水高效处理。
 
  适用范围
 
  城镇污水处理厂新建和改造。
 
  案例名称
 
  固戍水质净化厂(一期)水量提升扩容工程
 
  业主单位
 
  深圳市瀚洋水质净化有限公司
 
  案例概况
 
  工程地址:深圳市宝安区宝源路。
 
  工程规模:60000m3/d(水量最大变化系数1.33)。
 
  投运时间:2019年9月。
 
  验收情况:验收合格。
 
  工艺流程
 
  污水依次经粗格栅及提升泵房、细格栅及旋流沉砂池预处理后,进入厌氧池、缺氧池和耦合沉淀矩形气升环流生物反应器进行生化处理,出水经精细格栅并通过反硝化滤池进一步脱氮,再经紫外线消毒渠消毒后达标排放。
 
  污染防治效果和达标情况
 
  出水的各项主要指标稳定达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)中的一级A标准。
 
  二次污染治理情况
 
  臭气经收集后输送至生物除臭系统处理达标后排放;污泥经脱水后外运处置。
 
  主要工艺运行和控制参数
 
  水量变化系数1.33,总生化停留时间13.9h,反应沉淀模块表面负荷1.11m3/(m2·h)。
 
  投资费用
 
  工程总投资14725.62万元,其中工程费用11406.46万元,工程建设其他费用1580.14万元,预备费701.22万元。
 
  运行费用
 
  吨水处理费用0.847元。
 
  能源、资源节约和综合利用情况
 
  本工艺因节省了二沉池,有效节约了占地面积;此外,本工艺无外回流系统,能耗得到降低。
 
  《国家先进污染防治技术目录》
 
  《国家先进污染防治技术目录》是生态环境部的年度技术推广工作,目录紧密结合当年环境污染治理的重点领域,推出经工程实践证明技术水平先进、环境效益明显、经济可行的污染防治技术,供企业和管理部门参考使用。目录发布后,我会配套公布目录技术对应的典型应用案例。
 
  原标题:2022年《国家先进污染防治技术目录》入选技术案例 |(6)耦合沉淀矩形气升环流生物反应器污水处理技术

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