Adsorption performance of trace phosphorus removal by modified active aluminum oxide - Details

Author：

Li, Xing (Li, Xing.) | Fan, Qian (Fan, Qian.) | Yang, Yan-Ling (Yang, Yan-Ling.) (Scholars：杨艳玲) | Chen, Li (Chen, Li.) | Zhang, Lei (Zhang, Lei.)

Indexed by：

EI Scopus PKU CSCD

Abstract：

Performance　of　phosphorus　removal　of　active　aluminum　oxide　(γ-Al2O3)　modified　by　Al2(SO4)3　and　Na2SO4　was　studied　by　static　adsorption　experiment　in　order　to　develop　a　more　effective　method　of　trace　phosphorus　removal　in　water.　Influences　of　adsorbent　dosage,　pH　value　and　water　temperature　on　phosphorus　removal　were　observed,　and　removal　effects　of　different　phosphorus　forms　in　simulated　water　samples　using　γ-Al2O3　before　and　after　modified　were　investigated.　Results　show　that　phosphorus　removal　effects　of　γ-Al2O3　modified　by　Al2(SO4)3　and　Na2SO4　are　improved　remarkably.　Phosphorus　removal　rates　increased　with　18.53　and　14.34　percentage　points　separately.　Phosphorus　removal　efficiency　is　clearly　improved　with　increasing　dosage　of　modified　γ-Al2O3　in　a　certain　dosage　range.　Phosphorus　adsorption　action　of　modified　γ-Al2O3　mainly　relies　on　physical　adsorption.　Phosphorus　removal　effects　decrease　with　the　increases　of　temperature　and　pH　value.　The　γ-Al2O3　modified　by　Al2(SO4)2　displays　better　effects　on　phosphorus　removal　and　better　adaptability　on　water　quality.　The　effects　of　adsorption　phosphorus　removal　are　influenced　greatly　by　turbid　matters　in　water.　Therefore,　the　γ-Al2O3　adapts　better　to　advanced　phosphorus　removal　of　filtered　water.

Keyword：

pH effects Water quality Alumina Aluminum oxide Aluminum sulfate Sodium sulfate Adsorption

Author Community：

[ 1 ] [Li, Xing]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Fan, Qian]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Yang, Yan-Ling]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Chen, Li]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Zhang, Lei]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China