Innovation in Biological Wastewater Treatment

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 2148

Special Issue Editor


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Guest Editor
Department of Water Supply and Water Removal, Moscow State University of Civil Engineering, Moscow, Russia
Interests: biological wastewater treatment; biofilter; reconstruction of treatment facilities; nitrification; dephosphorization

Special Issue Information

Dear Colleagues,

The modern world is changing rapidly, technology and technology are also changing very quickly. Many changes concern the city, the climatic features of many cities are currently undergoing changes. Naturally, all changes associated with human life are reflected in the waste water that comes to the treatment plant. The quality of the wastewater also changes. This applies to temperature, performance, as well as wastewater treatment processes. Today, many projects for the reconstruction of treatment facilities are being carried out. Reconstruction should be aimed at obtaining a higher quality of treated waste water. Therefore, more and more innovations appear in wastewater treatment plants, which are associated with new technical processes or technologies that are adapted to climate change, new water quality, etc. Many structures that were built in the 20th century must today be reconstructed using old structures ... This way we can make the most of the old materials. At the same time, it is necessary to apply new technologies, breathe new life into old structures. Let's talk about the experience of reconstruction of treatment facilities on the pages of a special issue of the magazine.

Dr. Elena S. Gogina
Guest Editor

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Keywords

  • sustainable development
  • wastewater treatment
  • modernization of water facilities
  • urban wastewater management
  • nitrification
  • dephosphorization

Published Papers (1 paper)

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Research

14 pages, 2355 KiB  
Article
Optimization of Ammonia Nitrogen and Phosphorus Removal Performance and Analysis of Microbial Community Structure in Microbial Fuel Cells
by Jiyuan Li, Jie Zhou, Wenping Cao, Ming Zhang, Xueyu Wei, Wei Zhao, Jingru Zhao, Yu Wu and Taisen Shi
Water 2022, 14(21), 3412; https://doi.org/10.3390/w14213412 - 27 Oct 2022
Viewed by 1542
Abstract
In order to study the effects of operating conditions on the performance of a microbial fuel cell (MFC) for treating ammonia nitrogen (NH4+-N) and phosphate and the changes in the microbial community under optimized conditions, in this study, the response surface [...] Read more.
In order to study the effects of operating conditions on the performance of a microbial fuel cell (MFC) for treating ammonia nitrogen (NH4+-N) and phosphate and the changes in the microbial community under optimized conditions, in this study, the response surface method (RSM) and central composite design (CCD) were used to carry out experiments and construct a model of the system to analyze the influence of the hydraulic retention time (HRT) and initial influent ammonia concentration on NH4+-N and the total phosphorus (TP) removal performance of the MFC, and the changes in the microbial community structure were analyzed. The results showed that: (1) the initial influent ammonia concentration had a greater impact than the HRT; (2) after optimizing the reaction conditions, the actual removal rates of NH4+-N and TP of the system were 94.88% and 59.39% (the predicted values were 90.18% and 56.25%), respectively; and (3) the total number of species in the optimization group decreased, and the richness of the microbial community decreased. The system conducted the orthoselection of the microbial community and optimized the structure of the microbial community. After the optimization, the dominant strains for ammonia and phosphorus removal on the cathode reactor of each system were strengthened at the phylum and genus levels. Under the coaction of the dominant strains, the efficiencies of nitrogen removal and phosphorus removal in the reactor were significantly improved. The performance optimization of and microbial community change in NH4+-N and TP removal in the MFC system were studied using RSM, which was helpful to improve the effect of nitrogen and phosphorus removal. Full article
(This article belongs to the Special Issue Innovation in Biological Wastewater Treatment)
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