發佈日期 2021-12-01
Hach應用實績>英國泰晤士河畔污水處理廠之活性污泥廠程序控制的效能提升與節能
Thames Water: Enhanced Process Control & Energy Savings in ASP's
 
位於東倫敦泰晤士河畔的Beckton STW (Beckton Sewage Treatment Works) 貝克頓污水處理廠為歐洲最大的污水處理廠之一,平均處理流量為1,150,000 立方米/天。
 
其中一個活性污泥廠(activated sludge plant) - ASP4,負責處理30% 的廠區流量,面臨處理程序問題。由於最初之效能表現未達預期目標,因此以“節約開支”目標調整活性污泥廠以優化處理和降低能源消耗。
 
解決方案包含泰晤士水務公司的技術更新以及安裝Hach公司的 N-RTC 系統(Real Time Nitrification Control即時硝化控制)來測量進水口和排放口的銨濃度並確保以最低成本達到符合法規標準。
 
成果
完整的解決方案將銨去除率從 5.3 提高到 3.8 kwhr/kg Ammonium,相當於整體節省28%,約每年50萬英鎊,重要的是專案投資僅略超過1年即回收。
 
詳閱原始文章全文 HERE
(發表於 the Institute of Water Magazine 2021春季版)
 
November 12, 2021
 
Thames Water’s Beckton STW in East London is one of Europe’s largest wastewater plants, treating an average flow of 1,150,000 m3/d.
 
One of the activated sludge plants, ASP4, treating 30% of the site’s flow was identified to have process issues. Initial performance was disappointing and the decision was taken to modify the ASP under a “spend to save initiative” to optimise treatment and to reduce energy consumption.
 
The solution involved process changes by Thames Water and the installation of Hach's N-RTC system (real time nitrification control) measuring inlet and outlet ammonium concentrations and ensuring that the permit conditions were being met at least cost.
 
Results achieved
The complete solution improved the Ammonium removal rate from 5.3 to 3.8 kwhr/kg Ammonium equal to a 28% overall saving which amounts to approx. £0.5 million per annum and importantly a project payback period of just over 1 year.
 
Read the full story HERE
(published in the Institute of Water Magazine spring 2021 edition)