Influence of volume ratio on the modified four step-feed technology to treat weak wastewater - Details

Author：

Cao, G.-H. (Cao, G.-H..) | Wang, S.-Y. (Wang, S.-Y..) (Scholars：王淑莹) | Peng, Y.-Z. (Peng, Y.-Z..) (Scholars：彭永臻) | Miao, Z.-J. (Miao, Z.-J..)

Indexed by：

Scopus PKU CSCD

Abstract：

The　influence　of　different　volume　ratio　on　pollutants　removal　was　studied.　The　optimal　effluent　performance　of　COD,　NH4+-N,　TN　and　TP　were　28.12,　0.58,　9.26　and　0.43　mg/L,　respectively,　with　anaerobic/anoxic/oxic　volume　ratio　of　4:8:10.　More　than　72%　of　carbon　sources　were　utilized　effectively　for　phosphorus　release　and　denitrification,　and　about　12.6%　of　TN　was　removed　through　simultaneous　nitrification　and　denitrification　(SND)　in　oxic　zones.　The　experimental　results　also　indicated　that　the　volume　ratio　had　no　distinct　effect　on　COD　and　NH4+-N　removal,　but　had　distinct　impact　on　TN　and　TP　removal.　At　the　same　time,　with　the　strategy　that　reduce　the　volume　of　the　aerobic　zone　to　improve　the　anoxic　volume,　the　autotrophic　bacteria　could　take　full　advantage　of　more　carbon　sources　for　denitrification　and　phosphorus　release　in　each　anoxic　or　anaerobic　zone,　and　which　was　also　conducive　to　enrich　denitrifying　poly-phosphate　accumulating　organisms　(DPAOs).　The　highest　proportion　of　DPAOs　was　20.9%.

Keyword：

Effective utilization of carbon sources; Nitrogen and phosphorus removal; Step-feed process; Volume ratio; Wastewater

Author Community：

[ 1 ] [Cao, G.-H.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Wang, S.-Y.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Peng, Y.-Z.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Miao, Z.-J.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China

Reprint Author's Address：

王淑莹
[Wang, S.-Y.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China

Email：

wsy@bjut.edu.cn

Show more details

Related Keywords：

Source ：

Journal of Beijing University of Technology

ISSN： 0254-0037

Year： 2014

Issue： 3

Volume： 40

Page： 428-435,465

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 4

Affiliated Colleges：

化学与生命科学学院本学院/部未明确归属的数据

建筑与城市规划学院本学院/部未明确归属的数据

Get Fulltext

Library Discovery Baidu Scholar Search SCOPUS

Type
Departments

All Years Choose Year From to