Garmerwolde污水处理厂提标改造--新增好氧颗粒污泥系统、旁侧流SHARON  

Upgrading and Reconstruction of Garmerwolde WWTP in Application of Newly Constructed Aerobic Granular Sludge System and Enhanced SHARON

作　　者：陈涛[1] 门晓欣 李军 m.c.m.van loosdrecht mario pronk 

机构地区：[1]浙江工业大学环境学院,浙江杭州310014 [2]LX Environmental L.L.C.,Richboro,PA18954,USA [3]Department of Biotechnology,Delft University of Technology,Delft2601,the Netherlands

出　　处：《净水技术》2016年第5期11-16,共6页Water Purification Technology

基　　金：国家自然科学基金资助(51478433)

摘　　要：Garmerwolde污水处理厂原主体工艺采用AB法。为应对不断增加的污水量和更加严格的排放标准,该厂进行了提标改造。2005年主要通过增加旁侧SHARON（2400 kgN/d）以解决污泥消化液处理问题,氨氮去除率95%以上,达到硝化阶段节约能耗25%、反硝化阶段节约外加碳源40%,减少50%的污泥产量。2013年新增独立运行的SBR好氧颗粒污泥系统（Nereda）,增加产能2.86万m3/d,好氧污泥颗粒化后60%颗粒〉1 mm、生物量可稳定达到8 g/L以上、SVI5值稳定在45 mL/g左右,出水TN≤7 mg/L,TP≤1 mg/L,比传统活性污泥系统能耗降低58%-63%、占地减少33%、运行费用节省50%。Garmerwolde WWTP used the two-stage activated sludge process（so-called AB-process）as mainstream wastewater treatment process. Due to ever-increased flow and discharge regulations,the plant implemented the side-stream SHARON system to handle increased nitrogen load over 30% from rejected water in 2005. Since then the NH4^＋ -N removal efficiency can reach more than 95% . SHARON saves 25% energy consumption,40% external carbon cost for denitrification and 50% sludge reduction. In 2013 an SBR Aerobic granular sludge system （so-called Nereda process）is brought into operation with a capacity of 28 600 m^3 / d,which is an independent system parallel to the previous AB process and the previously implemented SHARON system. It operates at a biomass of 8 g / L steadily and SVI5 of 45 mL / g. The granular sludge size is more than 60% larger than 1 mm. The effluent consistently meet the discharge requirement of TN at 7 mg / L and TP at 1 mg / L. Compared to traditional activated sludge,the aerobic granular sludge system consumed 58% 63% less energy,33% less land and 50% savings on operating cost.

关 键 词：城镇污水处理厂 提标改造 好氧颗粒污泥 SHARON Nereda 

分 类 号：TU992.9[建筑科学—市政工程]