Microbubble size distribution in multiphase pump dissolved air flotation cells - 文章详情页

作者：

Kong, H. (Kong, H..) | Zhu, Y.-Y. (Zhu, Y.-Y..) | Chen, J.-Q. (Chen, J.-Q..) | Yang, H. (Yang, H..) (学者：杨宏)

收录：

Scopus PKU CSCD

摘要：

To　study　the　size　distribution　of　microbubbles　generated　from　the　multiphase　pump　dissolved　air　flotation　process,　the　laser　diffraction　technology　was　used.　The　influence　of　pressure,　salinity,　coagulant,　frother　and　oil　content　on　bubble　size　was　investigated.　Results　showed　that　increasing　air　pressure　had　a　positive　effect　on　bubble　size;　higher　salinity　could　decrease　the　bubble　size　distribution　but　no　effect　when　it　was　higher　than　0.5%;　polyaluminum　chloride　(PAC)　less　than　the　critical　micelle　concentration　signiflcantly　inhibited　bubble　coalescence,　and　higher　concentrations　of　the　reagents　could　reduce　the　mean　bubble　diameter　by　36%;　frother　could　steady　bubbles,　but　no　effect　on　bubble　size　improvement;　and　oily　water　with　small　surface　tension　reduced　the　bubble　size.

关键词：

Flotation reagents; Microbubble; Multiphase pump; Size distribution

作者机构：

[ 1 ] [Kong, H.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Kong, H.]Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
[ 3 ] [Zhu, Y.-Y.]Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
[ 4 ] [Chen, J.-Q.]Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
[ 5 ] [Yang, H.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

杨宏
[Yang, H.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

jiaqing@bipt.edu.cn

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