Removal Effect of Strengthened Ecological Floating Beds on the Nitrogen and Phosphorus of Urban Sewage

Probe - Environmental Science and Technology

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Field Value
 
Title Removal Effect of Strengthened Ecological Floating Beds on the Nitrogen and Phosphorus of Urban Sewage
 
Creator Yu, Lijie
Zhang, Zhi
Pan, Ao
Sun, Lei
Zhang, Linfang
 
Subject Municipal Engineering; Strengthened Ecological Floating Beds; Urban Sewage; Removal of Ammonium and Phosphate; Microbial Community
 
Description In order to explore the strengthened effect of aquatic animal, plant and substrate on nitrogen and phosphorus removal from floating bed and the influence on microbial community, the intensive floating bed was studied for urban sewage is worse than grade V : NH4+-N: 7.50±2.00mg/L, TN: 8.50 ±2.00mg/L, TP: 0.55±0.10 mg/L. Through the experiments, it can be concluded that: in the aspect of nitrogen removal capacity, CSFB group can show obvious advantages of it, and the effluent water quality in summer can reach the grade III; in terms of phosphorus removal, the CSFB phosphorus removal capacity is as high as 83.83%, and the effluent phosphorus concentration 0.11 mg / L in summer, and the phosphorus removal rate of the group containing zeolite was higher than 64%. The removal of nitrogen is mainly based on microbial degradation, followed by the matrix. In terms of the removal of phosphorus, the matrix can significantly increase the removal rate of phosphorus, and the contribution rate of purification of plants and benthic animals is relatively small. Moreover, canna and snails can improve microbial abundance and community diversity. And may affect the abundance of matrix denitrifying bacteria. The denitrifyi ng bacteria enriched in the zeolite floating beds are mostly heterotrophic denitrifying bacteria, among which Acinetobacter, Pseudomonas and Bacillus play a big role in the process of TN removal.
 
Publisher Universe Scientific Publishing Pte. Ltd.
 
Contributor
 
Date 2020-03-20
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://probe.usp-pl.com/index.php/PES/article/view/1310
10.18686/pes.v2i1.1310
 
Source Probe - Environmental Science and Technology; Vol 2, No 1 (2020); 22-27
2661-3948
 
Language eng
 
Relation http://probe.usp-pl.com/index.php/PES/article/view/1310/1159
 
Rights Copyright (c) 2020 Zhi Zhang
http://creativecommons.org/licenses/by-nc/4.0
 

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