Pilot-study of micro-polluted water treatment by UF membrane at different fluxes - Details

Author：

Lu, Shu (Lu, Shu.) | Li, Xing (Li, Xing.) | Tian, Jian Yu (Tian, Jian Yu.)

Indexed by：

EI Scopus

Abstract：

A　pilot-scale　ultrafiltration　(UF)　experiment　was　conducted　to　determine　the　effect　of　membrane　flux　on　pollutants　removal　performance　and　membrane　fouling.　The　study　results　showed　that　with　the　increase　of　the　membrane　flux　(20,　30　and　40　LMH　respectively),　the　removal　of　turbidity,　CODMn　and　UV254　were　slightly　decreased.　Every　10　LMH　more　flux　increased,　the　UV254　removal　was　reduced　double.　The　growth　rate　of　the　trans-membrane　pressure　(TMP)　became　faster　when　the　membrane　flux　increased,　and　20　LMH　could　be　considered　as　the　critical　flux　in　the　raw　water　quality　and　working　conditions.　Membrane　fouling　rate　could　be　delayed　by　air　bubbling　and　backwashing.　The　larger　the　membrane　flux　was,　the　more　TMP　could　be　reduced.　Furthermore,　the　effect　of　delaying　the　membrane　fouling　by　backwashing　was　better　than　by　air　bubbling.　©　(2014)　Trans　Tech　Publications,　Switzerland.

Keyword：

Water pollution Environmental technology Fouling Membrane fouling Water quality Thermomechanical pulping process Membranes Air

Author Community：

[ 1 ] [Lu, Shu]State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Science Research, Beijing 100041, China
[ 2 ] [Lu, Shu]Beijing Key Laboratory of water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Li, Xing]Beijing Key Laboratory of water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Tian, Jian Yu]State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China