球状颗粒多孔介质喉道算法及应用  

Throat algorithm of spherical particle porous media and application

作　　者：罗莉涛 张鸿涛[1,3] 魏云云[2] 陈兆林[1,3] 常风民[1,3] Luo Litao;Zhang Hongtao;Wei Yunyun;Chen Zhaolin;Chang Fengmin(School of Environment,Tsinghua University,Beijing 1 0 0 0 8 4,China;Institute of Porous Flow and Fluid Mechanics,Chinese Academy of Science,Langfang 065007,China;Beijing Guohuan Tsinghua Environment Engineering Design ＆ Research Institute Co.,Ltd.,Beijing 100084,China)

机构地区：[1]清华大学环境学院,北京100084 [2]中国科学院渗流流体力学研究所,河北廊坊065007 [3]北京国环清华环境工程设计研究院有限公司,北京100084

出　　处：《工业水处理》2018年第7期18-22,共5页Industrial Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2018ZX07110-006;2014ZX07211-001)

摘　　要：建立了一种球状颗粒多孔介质喉道算法。结合油田污水中悬浮物粒径特征,通过该算法筛选出合适的石英砂颗粒滤料粒径及占比,并人为调控石英砂颗粒滤料的平均喉道,以增强石英砂颗粒滤料对悬浮物的拦截卡堵功效,使油田污水处理工艺对悬浮物的去除率由62.33%提升到94.50%,二次过滤环节的悬浮物去除贡献率由10.86%提升至41.20%。A kind of throat algorithm of spherical particle porous media has been established. Based on the particle size characteristics of suspended substances in the oil-bearing wastewater in oilfields,the algorithm has been used,so as to figure out appropriate particle size and mass percentage of the quartz sand particle filter,adjust the average throat of quartz sand particle filter artificially,and enhance the intercept jam effect of quartz sand particle filter on suspended substances. As a result,the removing rate of suspended substances treated by the oil field wastewater treatment process is increased from 62.33% to 94.50%,and the removing contribution rate of suspended substances in the secondary filtration step is increased from 10.86% to 41.20%.

关 键 词：球状颗粒 多孔介质 喉道 算法 石英砂 

分 类 号：X703[环境科学与工程—环境工程]