[1]陈娟娟,晁伟翔,陈功,等.珠三角市政污水处理厂除砂效率评估及优化[J].中国给水排水,2026,42(1):91-98.
　CHENJuanjuan,CHAOWeixiang,CHENGong,et al.Evaluation and Optimization of Grit Removal Efficiency in Municipal Wastewater Treatment Plants in the Pearl River Delta[J].China Water & Wastewater,2026,42(1):91-98.

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珠三角市政污水处理厂除砂效率评估及优化

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷期数: 2026年第1期页码: 91-98 栏目: 出版日期: 2026-01-01

Title:: Evaluation and Optimization of Grit Removal Efficiency in Municipal Wastewater Treatment Plants in the Pearl River Delta

作者:: 陈娟娟^1,2，晁伟翔¹，陈功²，简羡婷³，刘梁⁴，任南琪¹，路璐¹; （1.哈尔滨工业大学<深圳> 土木与环境工程学院，广东深圳 518055；2.北京市市政工程设计研究总院有限公司广东分院，广东广州 510075；3.广州市番禺污水治理有限公司，广东广州 511400；4.智汇流体<北京>科技有限公司，北京 102218）

Author(s):: CHEN　Juanjuan^1，2， CHAO　Weixiang¹， CHEN　Gong²， JIAN　Xianting³， LIU　Liang⁴， REN　Nanqi¹， LU　Lu¹; （1. School of Civil and Environmental Engineering， Harbin Institute of Technology ， Shenzhen 518055， China； 2. Guangdong Branch， Beijing Municipal Engineering Design & Research Institute Co. Ltd.， Guangzhou 510075， China； 3. Guangzhou Panyu Wastewater Treatment Co. Ltd.， Guangzhou 511400， China； 4. SmartFlow Beijing Science & Technology Co. Ltd.， Beijing 102218， China）

关键词:: 除砂效率; 曝气沉砂; 多层旋流沉砂; 停留时间; 气水比

Keywords:: grit removal efficiency; aerated grit removal; multi?layer hydro?cyclone grit removal; retention time; air-to-water ratio

摘要:: 针对珠三角地区污水处理厂除砂效率较低的问题，对6 座污水处理厂的除砂工艺进行了分析。结果显示，传统除砂工艺的加权平均除砂率仅为39.42%~88.55%，对细小砂砾（粒径≤212 μm）的去除效果较差，其中对（75，106］ μm砂砾的去除率仅为13.78%~76.14%，对（106，212］ μm砂砾的去除率为20.70%~87.81%。研究发现，停留时间和气水比是影响除砂效率的关键因素，延长停留时间可将粒径>380 μm砂砾的去除率提高至96.35%~99.16%，而当气水比增至0.10~0.18（部分厂达到0.25以上）时，可将（106，212］ μm砂砾的去除率提高至32.27%~37.35%。针对细小砂砾去除效率低的问题，提出了一种新型多层旋流沉砂工艺，通过增加旋流层数和优化水流路径，提高了对全尺寸粒径范围内砂砾的去除效果，显著优于传统工艺。

Abstract:: The grit removal processes of six facilities were systematically analyzed to address the issue of low grit removal efficiency in wastewater treatment plants within the Pearl River Delta region. The weighted average grit removal efficiency of the traditional grit removal process ranged from 39.42% to 88.55%, with limited effectiveness in removing fine grit (particle size ≤212 μm). Specifically, the removal efficiency for grit sized (75,106] μm ranged from 13.78% to 76.14%, while that for grit sized (106,212] μm ranged from 20.70% to 87.81%. Retention time and air-to-water ratio were critical factors influencing grit removal efficiency. Extending the retention time could enhance the removal efficiency of grit with a particle size greater than 380 μm to between 96.35% and 99.16%. Furthermore, when the air-to-water ratio increased to the range of 0.10-0.18 (exceeded 0.25 in certain facilities), the removal efficiency for grit sized (106,212] μm could reach 32.27%-37.35%. To address the issue of low removal efficiency for fine grit, a novel multi-layer hydro-cyclone grit removal process was proposed. By increasing the number of cyclone stages and optimizing the hydraulic flow path, the system achieved enhanced removal performance across the entire particle size range, demonstrating a significant improvement compared to conventional methods.

更新日期/Last Update: 2026-01-01