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Water
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Low-Carbon and Green Biotechnologies for Nutrient Removal and Resource Recovery...
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Low-Carbon and Green Biotechnologies for Nutrient Removal and Resource Recovery from Wastewaters

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

Deadline for manuscript submissions: closed (11 April 2022) | Viewed by 11219

Special Issue Editors

Prof. Dr. Chuan Chen

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Guest Editor
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
Interests: wastewater treatment biotechnologies; resource and energy recovery from sewage sludge
Dr. Lei Zhao

E-Mail Website
Guest Editor
School of Environment, Harbin Institute of Technology, Harbin, China
Interests: fermentation; biohydrogen; biofuel; biomass
Special Issues, Collections and Topics in MDPI journals
Dr. Xu Zhou

E-Mail Website
Guest Editor
School of Civil and Environmental Engineering, Shenzhen Campus, Harbin Institute of Technology, Shenzhen 518055, China
Interests: innovative technologies for wastewater treatment processes and sludge reduction processes; bioenergy recovery from urban wastewater; waste management; anaerobic/aerobic digestion processes

Special Issue Information

Dear Colleagues,

This Special Issue focuses on the advanced biotechnologies for nutrient treatment (nitrogen, phosphorus or sulfur) and resource recovery of wastewaters or aquatic systems. Original research and review articles published in this issue will be freely available under open access, and the research content of each submission should include the “low-carbon” and “green” characteristics in terms of the level of science and technology.

We look forward to receiving your submissions and feel confident that this Special Issue will represent a significant step in promoting wastewater treatment technologies and the development of low-carbon and green technologies.

Prof. Dr. Chuan Chen
Dr. Lei Zhao
Dr. Xu Zhou
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

  • low carbon
  • green technology
  • nitrogen removal
  • phosphorus removal
  • sulfur removal
  • nutrient recovery
  • autotrophic denitrification
  • methane oxidation
  • anaerobic ammonium oxidation

Published Papers (4 papers)

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Research

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15 pages, 5306 KiB  
Article
Mixotrophic Denitrification of Glucose Polymer-Based Pyrite Tailings for Enhanced Nitrogen and Phosphorus Removal of Municipal Tailwater
by Jie Mao, Haojie Che, Xinyu Wang, Mengqi He, Chun Cheng, Meng Wang, Bai Sun and Shuguang Zhu
Water 2022, 14(12), 1868; https://0-doi-org.brum.beds.ac.uk/10.3390/w14121868 - 10 Jun 2022
Cited by 2 | Viewed by 1761
Abstract
In order to improve the removal ability of nitrogen and phosphorus pollutants from sewage with low C/N ratio, this study prepared the glucose polymer-based pyrite tailings with core-shell structure through glucose polymerizing on the surface of pyrite tailings particles and constructed a heterotrophic-sulfur [...] Read more.
In order to improve the removal ability of nitrogen and phosphorus pollutants from sewage with low C/N ratio, this study prepared the glucose polymer-based pyrite tailings with core-shell structure through glucose polymerizing on the surface of pyrite tailings particles and constructed a heterotrophic-sulfur autotrophic mixed-denitrification system. The experimental results show that compared with ordinary pyrite tailings, pyrite tailings modified by glucose polymer can improve the water quality of pH, enhance the ability to remove NO3− in water, and prolong the ability of mineral to continuously treat sewage, which also has a good removal effect on PO43− in water. The results of this study are of great significance to solve the excessive nitrogen and phosphorus in the secondary effluent and alleviate the eutrophication of the natural water. Full article
(This article belongs to the Special Issue Low-Carbon and Green Biotechnologies for Nutrient Removal and Resource Recovery from Wastewaters)
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11 pages, 3705 KiB  
Article
Heterogeneous Photo-Fenton Removal of Methyl Orange Using the Sludge Generated in Dyeing Wastewater as Catalysts
by Xu Liu, Hui-Lai Liu, Kang-Ping Cui, Zheng-Liang Dai, Bei Wang and Xing Chen
Water 2022, 14(4), 629; https://0-doi-org.brum.beds.ac.uk/10.3390/w14040629 - 18 Feb 2022
Cited by 5 | Viewed by 1615
Abstract
The disposal process of iron-containing sludge often leads to secondary pollution. Pyrolysis of sludge appears to be less polluting than conventional methods. Herein, the heterogeneous photo-Fenton catalysts were prepared using sludge generated in the dyeing wastewater through a simple one-step pyrolysis route. The [...] Read more.
The disposal process of iron-containing sludge often leads to secondary pollution. Pyrolysis of sludge appears to be less polluting than conventional methods. Herein, the heterogeneous photo-Fenton catalysts were prepared using sludge generated in the dyeing wastewater through a simple one-step pyrolysis route. The catalysts were characterized by XRD, FT-IR, XPS, EDS, BET, and SEM. The batch experiments for methyl orange (MO) degradation were performed to evaluate the efficiency and stability of the catalysts. Among the catalysts prepared, FeCN-300 exhibited the best degradation efficiency with 92% removal of the pollutant and good stability, with approximately 90% removal of the pollutant after five cycles. The •OH was identified as the dominant reactive species. This work provides a reasonable resource utilization of iron-containing sludge. Full article
(This article belongs to the Special Issue Low-Carbon and Green Biotechnologies for Nutrient Removal and Resource Recovery from Wastewaters)
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13 pages, 3698 KiB  
Article
A Comparative Study of Scenedesmus dimorphus Cultured with Synthetic and Actual Wastewater
by Liang Li and Kun Chi
Water 2021, 13(21), 3060; https://0-doi-org.brum.beds.ac.uk/10.3390/w13213060 - 02 Nov 2021
Cited by 5 | Viewed by 2387
Abstract
This study compared the growth of the microalgae Scenedesmus dimorphus in synthetic wastewater and actual wastewater under different cultivation conditions, in terms of nitrogen and phosphorus availability, wastewater quality, light condition and CO2 addition. The results show that the form of nitrogen [...] Read more.
This study compared the growth of the microalgae Scenedesmus dimorphus in synthetic wastewater and actual wastewater under different cultivation conditions, in terms of nitrogen and phosphorus availability, wastewater quality, light condition and CO2 addition. The results show that the form of nitrogen source had a significant effect on the growth of microalgae. Urea as a nitrogen source increased the growth rate of S. dimorphus significantly, while the high concentration of inorganic nitrogen inhibited the growth. When phosphate was 4 mg/L and pH was 7, the growth of S. dimorphus was the greatest. The bacteria in actual wastewater not only promote the growth of microalgae but also facilitate the formation of flocs, which is conducive to biomass harvest. With the increase in light intensity and light duration, S. dimorphus showed primarily an increasing and then a decreasing trend. Higher light intensity was required in actual wastewater than in synthetic wastewater, which may be due to the barrier effect of wastewater turbidity. S. dimorphus grew well in both kinds of wastewater with the addition of 2% CO2. Full article
(This article belongs to the Special Issue Low-Carbon and Green Biotechnologies for Nutrient Removal and Resource Recovery from Wastewaters)
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Review

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19 pages, 2278 KiB  
Review
Recent Advances in Autotrophic Biological Nitrogen Removal for Low Carbon Wastewater: A Review
by Quan Zhang, Xijun Xu, Xu Zhou and Chuan Chen
Water 2022, 14(7), 1101; https://0-doi-org.brum.beds.ac.uk/10.3390/w14071101 - 30 Mar 2022
Cited by 18 | Viewed by 4764
Abstract
Due to carbon source dependence, conventional biological nitrogen removal (BNR) processes based on heterotrophic denitrification are suffering from great bottlenecks. The autotrophic BNR process represented by sulfur-driven autotrophic denitrification (SDAD) and anaerobic ammonium oxidation (anammox) provides a viable alternative for addressing low carbon [...] Read more.
Due to carbon source dependence, conventional biological nitrogen removal (BNR) processes based on heterotrophic denitrification are suffering from great bottlenecks. The autotrophic BNR process represented by sulfur-driven autotrophic denitrification (SDAD) and anaerobic ammonium oxidation (anammox) provides a viable alternative for addressing low carbon wastewater. Whether for low carbon municipal wastewater or industrial wastewater with high nitrogen, the SDAD and anammox process can be suitably positioned accordingly. Herein, the recent advances and challenges to autotrophic BNR process guided by SDAD and anammox are systematically reviewed. Specifically, the present applications and crucial operation factors were discussed in detail. Besides, the microscopic interpretation of the process was deepened in the viewpoint of functional microbial species and their physiological characteristics. Furthermore, the current limitations and some future research priorities over the applications were identified and discussed from multiple perspectives. The obtained knowledge would provide insights into the application and optimization of the autotrophic BNR process, which will contribute to the establishment of a new generation of efficient and energy-saving wastewater nitrogen removal systems. Full article
(This article belongs to the Special Issue Low-Carbon and Green Biotechnologies for Nutrient Removal and Resource Recovery from Wastewaters)
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