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2022年《国家先进污染防治技术目录》入选技术案例 |（9）模块化装配式污水处理装备

2023-02-07 10:02:51来源：中国环保产业协会 阅读量：11336

导读：鹏凯环境科技股份有限公司、肇庆市鹏凯环保装备有限公司的模块化装配式污水处理装备技术入选2022年《谷国家先进污染防治技术目录》。
　　技术名称：模块化装配式污水处理装备
 
　　技术依托单位：鹏凯环境科技股份有限公司、肇庆市鹏凯环保装备有限公司
 
　　工艺路线：主体设备为高效气升环流式脱氮生物反应器，该反应器将生化曝气区与沉淀区上下高度集成，中间设置特殊的三相分离结构，反应器可利用曝气尾气作为气提动力，驱动内圈-外圈混合液循环。反应器出水经沉淀分离后排放。臭气经处理后达标排放。
 
　　主要技术指标：进水COD≤250mg/L、BOD5≤120mg/L、SS≤150mg/L、氨氮≤30mg/L、TN≤40mg/L、TP≤4mg/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。
 
　　技术特点：采用模块化多级环状结构设计，可有效减少占地面积、降低材料用量、缩短建设周期。
 
　　适用范围：新建村镇污水处理厂和城镇污水处理厂扩建。
 
　　案例名称：肇庆四会市碧海湾装配式污水处理厂项目
 
　　业主单位：四会市住房和城乡建设局
 
　　案例概况
 
　　工程地址：广东肇庆四会市。工程规模：10000m3/d。投运时间：2021年3月。验收情况：验收合格。
 
　　工艺流程
 
　　污水经格栅后，初步筛除粒径较大的悬浮物及其他杂质，然后进入集水井，由污水提升泵提升至模块化装配式污水处理装备进行处理。模块化装配式污水处理装备中含有厌氧区、好氧区和澄清区。主体设备呈环状，设备内圈集成好氧段与澄清段，实现水、气、固有效分离，分离后的气体收集后形成气提，实现泥水混合液在系统内的无动力回流。在厌氧段，聚磷菌释放磷，并吸收低级脂肪酸等易降解的有机物；在缺氧段，反硝化细菌将内回流带入的硝酸盐通过生物反硝化作用，转化成氮气，从而达到脱氮的目的；在好氧段，硝化细菌将氨氮转化成硝酸盐，聚磷菌超量吸收磷，并通过剩余污泥的排放，将磷去除。经处理后的污水进入消毒单元消毒后达标排放。
 
　　污染防治效果和达标情况：出水COD、BOD5、氨氮、TP和pH值均达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准。
 
　　二次污染治理情况：污泥经浓缩、脱水后外运处置。
 
　　主要工艺运行和控制参数：好氧池停留时间5h，厌、缺氧池停留时间4.5h，沉淀区表面负荷1.01m3/(m2·h)，曝气气水比6:1。
 
　　投资费用：基础设施建设及设备投资费用共1497.5万元。
 
　　运行费用：吨水处理费用0.432元。
 
　　能源、资源节约和综合利用情况：项目采用的模块化装配式污水处理装备，具有高度集成的立式结构，占地面积小，建设周期短。
 
　　原标题：2022年《国家先进污染防治技术目录》入选技术案例 |(9)模块化装配式污水处理装备

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