Study of Sewerage Silts Characteristics in Urban Drainage Network System of Mountain City
Chongqing is a mountain city withcomplexlandform which has imperfecturban drainage networksystem,which brings plenty of silts into the sewerage.The silts will lead to severe wear of equipment and pipe networkblocked.It affects the efficiency of wastewater treatmentseverely.This article investigated the particles size distribution,surface morphology and composition of silts.The results prove that: mountain city sewerage silt particles size distribution in the form of normally distributedroughly,91.43% particles belong to ultra-fine sandwith the size less than 250μm ; the average area of silt particles are enlarged form 303.31 μm2 to 904.56μm2 under the packaging of organics,and the average shape factor of these particles is 0.56; sewerage silts consist of C,O,Mg,Al,Si,Ca and Fe,and the package of organics is severe.
mountain city sewerage silts characteristics particle size
JIANG Lijin LIU Qingcai GUO Fuqiang YANG Jian REN Shan LI Lin FANG Shihui
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
国际会议
2015 International Symposium on Environmental Science and Technology (2015 ISEST)(2015环境科学与技术国际会议)
重庆
英文
167-171
2015-11-18（万方平台首次上网日期，不代表论文的发表时间）