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Wastewater Pollution and Control

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Special Issue Editors

Special Issue Information

Dear Colleagues,

It is a great pleasure to greet you from the Water (ISSN: 2073-4441). We are inviting manuscripts for the journal’s Special Issue in the form of original research, reviews, case reports, short reports, etc.

Wastewater contains many pollutants and is discharged by various sources in large amounts. The control technology and health effect of wastewater and water environment is a continuous research focus, and meanwhile, a lot of novel methods, materials, and understandings are investigated and analyzed. The aim of the Special Issue is to report the research and engineering practice progress in wastewater pollution, risk, and treatment. We are pleased to invite you to submit your manuscript on the topics of WASTEWATER and WATER ENVIRONMENT.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but not limited to) the following: wastewater pollution and ecological risk, wastewater health effect, new pollutants in wastewater, novel treatment technologies of wastewater, and wastewater management strategy.

We look forward to receiving your contributions.

You may choose our Joint Special Issue in IJERPH.

Dr. Tan Chen
Dr. Zhengyu Jin
Dr. Ting Yang
Dr. Bing Zhang
Dr. Xue Xia
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

wastewater treatment
sewage sludge treatment and disposal
wastewater pollution
industrial wastewater treatment
reclamation and utilization of sewage
denitrification, phosphorus removal, and desalination
microbiology of water treatment
water advanced treatment
water environment and surface sediments.

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Research

14 pages, 4368 KiB

Open AccessArticle

The Relationship between Ribosomal RNA Operon Copy Number and Ecological Characteristics of Activated Sludge Microbial Communities across China

by Jiaying Li, Yunwei Zhao, Ruisi Ye, Jingyue Zhang, Qianhui Chen, Ting Yang, Tan Chen and Bing Zhang

Water 2024, 16(16), 2246; https://doi.org/10.3390/w16162246 - 9 Aug 2024

Viewed by 1768

Abstract

It is well accepted that the high performance of wastewater treatment plants (WWTPs) relies on the microbial community in activated sludge (AS). Hence, it is crucial to illuminate the geographic distributions and influencing factors of the ecological strategies employed by the AS microbial community. Here, we investigated how the ecological strategies of AS microbial communities influenced their ecological characteristics in 60 WWTPs across 15 cities in China. Our study showed that the average rrn copy number of the whole AS microbial community across China was 2.25 ± 0.12. The highest average rrn copy number of the core community indicated that core members tend to be r-strategists with an advantage in rapid pollutant removal and recovery of the community after environmental disturbances. High nutrient availability promoted microorganisms with higher average rrn copy numbers, while long sludge retention time (SRT) was preferred to the microorganisms with lower average rrn copy numbers. Homogenous selection and dispersal limitation were the predominant assembling processes at the city level, with a shift from deterministic to stochastic processes with increasing average rrn copy numbers. Furthermore, more r-strategists participated in chemoheterotrophic functions, while more K-strategists were related to the nitrification processes. Overall, our findings enrich the knowledge of AS microbial ecology and lay the theoretical foundation for the precise regulation of WWTPs. Full article

(This article belongs to the Special Issue Wastewater Pollution and Control)

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