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Water
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Utilization and Treatment of Sewage Sludge
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Utilization and Treatment of Sewage Sludge

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 November 2022) | Viewed by 2242

Special Issue Editor

Prof. Dr. Jurand Bień

E-Mail Website
Guest Editor
Faculty of Infrastructure and Environment, Częstochowa University Of Technology, Czestochowa, Poland
Interests: waste management; sludge treatment and utilization; thermal processes; resource recovery

Special Issue Information

Dear Colleagues,

With the increase in the number of wastewater treatment plants and the improvement of wastewater treatment technology and efficiency, the total amount of municipal sludge has increased year on year. Therefore, it is necessary to treat and dispose of the sludge in a reasonable way, taking into account environmental, social, technical and economic factors.

This Special Issue welcomes innovative studies related to sludge treatment and final utilization. This includes the following broad topics: estimating sludge amount, infrastructure adjustments, agricultural use, compost production, thermal utilization methods (incineration, oxy-combustion, gasification, pyrolysis, carbonization processes, wet conversion techniques, hydrogen production, etc.), cement and aggregate substitutes, construction materials, nutrient potentials and phosphorus recovery, and legislative and environmental issues.

Manuscripts should contribute to the current knowledge on the municipal sewage sludge treatment and utilization methods, providing novel insights into technologies and methods, increasing treatment efficiency, or reducing the impact of current techniques and processes on the environment.

Prof. Dr. Jurand Bień
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. 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

  • municipal sewage sludge
  • sludge characteristics
  • sludge treatment
  • sludge disposal strategies
  • sludge utilization
  • sludge management
  • nutrient recovery

Published Papers (1 paper)

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Research

22 pages, 1084 KiB  
Article
Environmental and Economic Performance of Sludge Composting Optimization Alternatives: A Case Study for Thermally Hydrolyzed Anaerobically Digested Sludge
by Irina Kliopova, Edgaras Stunžėnas, Jolita Kruopienė and Rimas Pranas Budrys
Water 2022, 14(24), 4102; https://doi.org/10.3390/w14244102 - 15 Dec 2022
Cited by 1 | Viewed by 1758
Abstract
Composting is one of the ways to return sewage sludge nutrients to the soil and thus keep them in the economic cycle. This well-known technique is still being developed in search of more advanced, optimal solutions. This study presents the results of an [...] Read more.
Composting is one of the ways to return sewage sludge nutrients to the soil and thus keep them in the economic cycle. This well-known technique is still being developed in search of more advanced, optimal solutions. This study presents the results of an environmental and economic analysis of the sludge treatment processes used in a municipal wastewater treatment plant. The sludge (up to 4700 m3 per day) is subjected to thermal hydrolysis before anaerobic treatment. The energy produced is lower than consumed, mainly since 59% of the digested sludge is also dried. An even bigger problem is that the treated sludge does not meet the criteria for fertilizing products and can only be used for energy forests. Thus, three alternatives for composting thermally hydrolyzed anaerobically treated dewatered sludge with green waste from public areas were researched. The analysis revealed the environmental and economic benefits of such a decision, especially when using microbial inoculants in open composting and maintaining semi-anaerobic conditions. An increase in humic acids (by 63.4%) and total nitrogen (by 21.8%) concentrations, a minimization of NH3 emissions (by 26.6%), and the lowest cost price (53 EUR tonne−1 of sludge dry matter) are among the benefits. Full article
(This article belongs to the Special Issue Utilization and Treatment of Sewage Sludge)
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