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Advances in Water Pollution Control Theory and Industrial Wastewater Treatment Technology

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

Deadline for manuscript submissions: 25 August 2024 | Viewed by 671

Special Issue Editor


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Guest Editor
Department of Environmental Engineering and Management, Cristofor Simionescu Faculty of Chemical Engineering and Environmental Protection, "Gheorghe Asachi" Technical University of Iasi, 700050 Iași, Romania
Interests: environmental engineering and management; water and wastewater treatment technology and management
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Special Issue Information

Dear Colleagues,

Globally, environmental quality management is a key issue in all economic sectors and environmental policies. Some key targets are the fulfillment of the corresponding environmental limitative norms registered in company compliance plans, especially on sites with intense economic activity; the control of the environmental pollution status; and quality maintenance by understanding the fundamental chemical, physical, and biological mechanisms involved in the sustainable development and change of the local environment (especially the aquatic environment). Specialists are capable of making reliable mid- and long-term predictions of environmental change rates in response to various external pressures (e.g., prolonged emission/discharge/evacuation of polluting loads in the natural environment, changes in land use and management practices, responses to climate change, etc.). Special attention is accorded to advances in industrial wastewater treatment technologies for sustainable company development, treated effluent recycling/reuse, or safe discharge into natural receptors.

Dr. Carmen Zaharia
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

  • pollution control
  • environmental quality and risk assessment
  • modeling and optimization of environmental treatments
  • wastewater treatment technologies and systems
  • polluting species
  • quality indicators
  • effluent treatment efficiency

Published Papers (1 paper)

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Research

20 pages, 7262 KiB  
Article
Optimization of Coagulation to Remove Turbidity from Surface Water Using Novel Nature-Based Plant Coagulant and Response Surface Methodology
by Fakhara Shahzadi, Sajjad Haydar and Shamas Tabraiz
Sustainability 2024, 16(7), 2941; https://doi.org/10.3390/su16072941 - 01 Apr 2024
Viewed by 512
Abstract
Plant-based natural coagulants are considered potential alternatives to chemical coagulants. These are eco-friendly, non-toxic, and produce less sludge compared to chemical coagulants. This study aims to evaluate the coagulation potential of a novel plant-based coagulant Sorghum for canal water treatment. In addition, a [...] Read more.
Plant-based natural coagulants are considered potential alternatives to chemical coagulants. These are eco-friendly, non-toxic, and produce less sludge compared to chemical coagulants. This study aims to evaluate the coagulation potential of a novel plant-based coagulant Sorghum for canal water treatment. In addition, a coagulant aid, i.e., Aloe Vera, was also tested to examine any further increase in turbidity removal through a jar test apparatus. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) were used to characterize the coagulants. The experiment was designed using response surface methodology (RSM). When used alone, Sorghum resulted in a maximum turbidity removal of 87.73% at pH 2 and a dose of 40 mg/L, while the combination of Sorghum and Aloe Vera resulted in a turbidity removal of 84.2% at pH 2.7, and the doses of Sorghum and Aloe Vera were 17.1 mg/L and 0.9% (v/v), respectively. Thus, the Sorghum dose was significantly reduced when Aloe Vera was used in combination. At a pH of 7, Sorghum achieved 54% turbidity removal at a dose of 55.7 mg/L. Analyses of variance revealed that pH plays a more vital role in the removal of turbidity than the coagulant dose. FTIR and SEM analyses revealed that adsorption is the dominant coagulation mechanism for plant-based coagulants. The Sorghum powder exhibited carboxylic, amine, and carbonyl groups that functioned as active adsorption sites for suspended solids. In a similar vein, the coagulant aid Aloe Vera gel facilitated the adsorption process by fostering intermolecular hydrogen bonding between suspended particles and amine groups present within the gel. Full article
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