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Technologies for Sustainable Wastewater Treatment and Sewage-Sludge Management

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Water Management".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 4726

Special Issue Editor

Faculty of Civil and Environmental Engineering and Architecture, Department of Environmental Engineering and Chemistry, Rzeszow University of Technology, 35-959 Rzeszów, Poland
Interests: wastewater treatment; sequencing batch reactor; aerobic granular sludge technology; phosphorus removal; improvement of activated sludge; powdered materials in wastewater technology; energy efficiency

Special Issue Information

Dear Colleagues,

The decline in water quality and the tightened wastewater discharge standards are posing a considerable challenge in the current global water industry. Thus, innovative technologies are urgently needed for wastewater and sewage-sludge treatment to ensure environmental and economic sustainability. The improvement of collecting and treatment systems for wastewater is increasing annual sludge production, further increasing the problem of sewage-sludge disposal. Sewage-sludge disposal routes should be established according to the circular economy concept to promote sustainable recovery pathways and to overcome the barriers that are now limiting material and energy recovery from sewage sludge.

This Special Issue aims to provide a platform for researchers for disseminating recent technological developments and engineering solutions in the areas of wastewater treatment and sewage-sludge management. Within this context, we would like to invite you to submit original research and review articles to disseminate and share new findings on wastewater treatment and/or sewage-sludge management. The potential topics include but are not limited to the following:

  • New insights into sustainable nutrient removal and energy/resource recovery from wastewater;
  • Advances in the development of innovative wastewater treatment and sewage-sludge technologies in wastewater treatment plants;
  • Technologies for the removal of contaminants of emerging concern such as antibiotic resistance genes and microplastics;
  • The lifecycle analysis of sewage-sludge treatment and reuse pathways;
  • Circular economy and energy efficiency in wastewater treatment plants;

Novel and state-of-the-art processing of sewage sludge to produce high-value products (e.g., fertilizers and biobased feedstocks).

Dr. Adam Masłoń
Guest Editor

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. Sustainability 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 2400 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/sludge treatment technologies
  • innovative treatment technologies
  • energy/resource recovery from wastewater/sludge
  • nutrient removal
  • circular economy
  • energy efficiency in wastewater management
  • contaminants of emerging concern
  • sustainability

Published Papers (2 papers)

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Research

14 pages, 2143 KiB  
Article
Use of Shredded Recycled Plastic as Filter Bed Packing in a Vertical Flow Filter for Onsite Wastewater Treatment Plants: Preliminary Findings
by Krzysztof Chmielowski, Wiktor Halecki, Adam Masłoń, Łukasz Bąk, Marek Kalenik, Marcin Spychała, Arkadiusz Niedziółka, Mariusz Łaciak, Michał Roman and Jakub Mazurkiewicz
Sustainability 2023, 15(3), 1883; https://doi.org/10.3390/su15031883 - 18 Jan 2023
Cited by 3 | Viewed by 2123
Abstract
Household wastewater is a problem, especially in areas with a dispersed settlement where there is no wastewater collection system or wastewater treatment plant. In this case, it is necessary to build a local or onsite wastewater treatment plant. This paper is an attempt [...] Read more.
Household wastewater is a problem, especially in areas with a dispersed settlement where there is no wastewater collection system or wastewater treatment plant. In this case, it is necessary to build a local or onsite wastewater treatment plant. This paper is an attempt to analyse the possibility of using recycled shredded ABS plastic (acrylonitrile butadiene styrene) as packing media in an experimental vertical flow filter for use in on-site wastewater treatment plants. Studies have shown that shredded recycled ABS is a promising filtration material that has several features important in the treatment process, like a large surface area, high mechanical strength and chemical inertness. The system was operated with a hydraulic load of 50 dm3/m2 (3 months). BOD5 (biochemical oxygen demand), COD (chemical oxygen demand), and total suspended solids (TSS) reduction efficiency in the primary effluent was high; 94.4%, 77.8%, and 92.8%, respectively. Full article
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14 pages, 2531 KiB  
Article
Sustainable Utilization of Sewage Sludge through the Synthesis of Liquid Fertilizer
by Yan-Jhang Chen, Li-Pang Wang and Sandhya Babel
Sustainability 2022, 14(1), 387; https://doi.org/10.3390/su14010387 - 30 Dec 2021
Cited by 2 | Viewed by 1815
Abstract
In a world with a growing human population, resources are becoming increasingly scarce. To ensure food supply, fertilizers are often used to accelerate growth when planting agricultural products. Sewage sludge (SS), containing as high as 10–15 wt% Phosphorus (P), can be synthesized into [...] Read more.
In a world with a growing human population, resources are becoming increasingly scarce. To ensure food supply, fertilizers are often used to accelerate growth when planting agricultural products. Sewage sludge (SS), containing as high as 10–15 wt% Phosphorus (P), can be synthesized into liquid fertilizer. P species in SS can generally be classified into four types: inorganic phosphorus (IP), organic phosphorus (OP), nonapatite inorganic phosphorus (NAIP), and apatite phosphorus (AP). However, OP is not leached out by wet chemical methods and NAIP is not bioavailable. This study investigated the P-form conversion (OP and NAIP to AP) in SS by adding 8 wt% CaO at 300 °C. SS through pretreatment can easily leach out P when combined with organic acid. The content of heavy metals is in accordance with fertilizer regulations in a leaching solution. The solution was mixed with potassium and ammonia compounds to synthesize a liquid fertilizer. To ensure the safe and efficient use of liquid fertilizer and undertake an analysis of heavy metals, an aquatic organisms (D. magna) toxicity test, and the growth of plants test were both used. The liquid fertilizer can be demonstrated to accelerate the growth of plants while not causing the death of D. magna in short time, as the liquid fertilizer has enough nutrients to help the D. magna to survive. Full article
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