Improving Nitrogen and Phosphorus Removal from Reclaimed Water Using a Novel Sulfur/Iron Composite Filler - Details

Author：

Zhou, Yan-Qing (Zhou, Yan-Qing.) | Hao, Rui-Xia (Hao, Rui-Xia.) | Liu, Si-Yuan (Liu, Si-Yuan.) | Wang, Li-Sha (Wang, Li-Sha.)

Indexed by：

EI Scopus PKU PubMed CSCD

Abstract：

In　order　to　improve　the　ability　of　denitrification　and　phosphorus　removal　from　reclaimed　water,　a　novel　composite　filler　was　prepared　using　sulfur　powder　and　sponge　iron　powder,　and　a　comparative　experiment　was　constructed　at　different　HRT(hydraulic　retention　time)　and　C/N(carbon-nitrogen　ratio)　conditions　between　the　novel　filler　and　the　composite　filler.　The　results　showed　that　the　efficiency　of　nitrogen　and　phosphorus　removal　on　the　novel　filler　was　higher　than　that　on　the　grain　filler　(more　than　30%　higher　at　HRT=4　h　and　C/N=1).　Moreover,　based　on　the　16S　rRNA　gene　clone　library,　the　denitrification　system　in　the　two　reactors　included　sulfur　autotrophic　denitrification　bacteria　and　heterotrophic　denitrification　bacteria,　while　the　proportion　of　sulfur　autotrophic　denitrification　bacteria　in　the　novel　filler　system　was　higher.　The　dominant　bacteria　in　the　novel　filler　and　composite　filler　were　Sulfurimonas　and　Acinetobacter,　respectively.　©　2017,　Science　Press.　All　right　reserved.

Keyword：

Cloning Chemicals removal (water treatment) Nitrogen removal Sulfur Phosphorus Sponge iron RNA Nitrogen Genes Bacteria Denitrification Fillers

Author Community：

[ 1 ] [Zhou, Yan-Qing]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Hao, Rui-Xia]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Liu, Si-Yuan]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Wang, Li-Sha]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China

Reprint Author's Address：

[hao, rui-xia]key laboratory of beijing for water quality science and water environmental recovery engineering, college of architecture and civil engineering, beijing university of technology, beijing; 100124, china

Email：

haoruixia@bjut.edu.cn

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