Pilot-scale experimental study of micropolluted raw water with zeolite-sand biofilter - Details

Author：

Yang, Yan-Ling (Yang, Yan-Ling.) (Scholars：杨艳玲) | Li, Xing (Li, Xing.) | Zhang, Ye (Zhang, Ye.) | Li, Gui-Bai (Li, Gui-Bai.)

Indexed by：

EI Scopus PKU CSCD

Abstract：

The　operational　performance　of　zeolite-sand　double-layer　biofilter　is　studied　to　treat　micropolluted　raw　water　on　an　experimental　scale.　The　feasibility　of　the　micropolluted　raw　water　treated　by　the　biofilter　is　examined.　The　results　show　that　the　treated　water　quality　can　be　obviously　improved　and　the　removal　rate　of　turbidity,　CODMn,　UV254,　NH3-N　and　NO2--N　has　reached　to　93.5%,　38%,　40%,　95%　and　100%　respectively.　The　removal　is　handled　mostly　on　the　top　layer　of　30　cm　in　the　biofilter.　Backwashing　process　of　the　biofilter　has　little　influence　on　the　biofilm,　which　can　be　recovered　within　one　to　two　hours　after　the　back-washing.　It　is　feasible　to　replace　an　ordinary　filter　with　zeolite-sand　double-layer　biofilter　in　the　process　of　micropolluted　raw　water　treatment.

Keyword：

Turbidity Water quality Zeolites Biofilters Removal Potable water Biofilms Water treatment

Author Community：

[ 1 ] [Yang, Yan-Ling]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Li, Xing]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Zhang, Ye]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Li, Gui-Bai]School of Municipal and Environment Engineering, Harbin Institute of Technology, Harbin 150090, China