Comparison of Treating Micro-pollution Raw Water before and after Upgrading
LIU Bing
HUANG Jing
LI Qingfei
YU Guozhong
ZHAI Huimin
GAO Hui
ZHAO Chengmei
Abstract：The pollution of source water has been a serious problem in drinking water treatment process.Under the structure unchanged,the original aeration tank was changed to biological pretreatnent,and sand filter was transformed into bio-filter by pilot and full-scale test.The results showed that in the pilot biological pretreatment process,removal of permanganate index and NH4+-N were about 16.4％ and 60.5％,and the highest biomass on packing was 28.6 nmol P/(g filler).By pilot biofilter treating processes,permanganate index and NH4+-N removal reached 33.4％ and 87.5％,and removal of 74.7％ and 24.3％ were turbidity and color.The biomass was 37.8 nmol P/(g filler) on packing.In full-scale biological pretreatment process,permanganate index and NH4+-N removal stabilized at 19.2％ and 68.3％.In full-scale bio-filter and sand filter,30.7％ and 5.6％ of permanganate index could be removed,and the removal of NH4+-N and UV254 were 81.3％,25.6％ and 16.4％,0.03％ repectively.Compared with full-scale sand filter,full-scale bio-filter decreased by 63.8％ of total AOC,and the concentration of total AOC was lower than 100 μg acid carbon/L.
Keywords：micro-pollution raw waterbiological pretreatmentbio-filterupgrading processAOC
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 107-115 )