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Water
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Water Pollution and Bioremediation
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Water Pollution and Bioremediation

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

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 4898

Special Issue Editor

Prof. Dr. Hrudayanath Thatoi

E-Mail Website
Guest Editor
Department of Biotechnology, Maharaja Sriram Chandra Bhanja Deo University, Baripada 757003, Odisha, India
Interests: microbiology; biofuel; enzymology; mushroom; mangrove; bioactivity; bioremediation; bioinformatics

Special Issue Information

Dear Colleagues,

Water pollution is an issue of great concern worldwide. Human activity is primarily responsible for water pollution, although natural phenomena can also contribute to water pollution to some extent. Water pollution can be broadly divided into three main categories, such as (1) contamination by organic compounds (2) contamination by inorganic compounds (e.g., heavy metals), (3) contamination by microorganisms. The main causes of water pollution include mining activities, discharge of untreated sewage from industries, agricultural run-off, which contain imbalance pH, toxic heavy metals and oxides, pathogens, harmful blooms, oil spills, pesticides,  dyes, etc., which contaminate both surface and groundwater. It has a very negative effect on public health as it causes a lot of diseases such as diarrhea, cholera, typhoid, dysentery or skin infections due to drinking or using contaminated water. An increase in the number of minerals in polluted water is responsible for eutrophication – a condition that has a bad impact on life in water. Water pollution badly harms the biodiversity of aquatic ecosystems. Wastewater treatment consists of removing pollutants from wastewater through a variety of approaches such as conventional, microbial, plant-based and nanomaterials. The microorganisms are used in bioremediation processes due to their natural capacity to biosorb/transform toxic heavy metal ions. In recent years, the use of bioremediation processes for the removal of toxic metals from aqueous solutions is gaining considerable attention.

Prof. Dr. Hrudayanath Thatoi
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

  • polluted water
  • industrial effluents
  • heavy metals
  • phytoremediation
  • bioremediation
  • microbial remediation
  • nanotechnology-based bioremediation

Published Papers (2 papers)

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Research

16 pages, 15714 KiB  
Article
Assessment of Water Resources Pollution Associated with Mining Activities in the Parac Subbasin of the Rimac River
by Julio Cesar Minga, Francisco Javier Elorza, Ramon Rodriguez, Alfredo Iglesias and Doris Esenarro
Water 2023, 15(5), 965; https://doi.org/10.3390/w15050965 - 2 Mar 2023
Cited by 5 | Viewed by 3401
Abstract
The objective of this study is to evaluate the contamination of water resources in the Parac subbasin. The existing contamination by heavy metals due to the presence of mining companies is of great concern to the population that inhabits the area since health [...] Read more.
The objective of this study is to evaluate the contamination of water resources in the Parac subbasin. The existing contamination by heavy metals due to the presence of mining companies is of great concern to the population that inhabits the area since health is being affected. A methodology has been used as an integrated approach based on pollution assessment indices. Five surface water samples and seven groundwater samples were collected in the Parac subbasin, in the vicinity of the Tamboraque tailings. Physicochemical parameters and heavy metals (Al, As, Br, Pb, Fe, Cd, Mn, Hg, B, Ni, Cu, and Se) were analyzed. The mean concentrations of Al, As, Ba, Cu, Fe, Pb, and Zn were 0.3 mg/L, 0.02 mg/L, 0.02 mg/L, 0.05 mg/L, 0.8 mg/L, 0.04 mg/L, and 0.12 mg/L respectively. HPI, HEI, and Cd indices were averaged around 1378.5, 134.5, and 126.5 respectively, HPI and Cd values were above 100 as a critical contamination index value, which indicates that the water samples are critically contaminated with respect to the heavy metals studied. The total variance was 88.11% of the water quality with two components according to the ACP analysis. Al, As, Cu, Fe, Pb, Zn, and Mn showed a high positive charge on PC1 (69.68%) while Ba and Mo had a high positive charge on PC2 (18.12%). The intensity of distribution of metals As, Fe, Mn, and Pb in surface and groundwater is an environmental concern and a more complete monitoring network is needed for the sustainable management of water resources. Full article
(This article belongs to the Special Issue Water Pollution and Bioremediation)
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13 pages, 3514 KiB  
Article
Ultraviolet Radiation-Assisted Preparation of a Novel Biomass Fiber to Remove Cadmium from Wastewater
by Hao Xue, Min Xu, Yueyang Yu, Jiancheng Wan, Chen Liu and Fansheng Meng
Water 2023, 15(4), 811; https://doi.org/10.3390/w15040811 - 19 Feb 2023
Cited by 1 | Viewed by 1205
Abstract
The heavy metal adsorbents developed based on biomass resources have valuable application prospects due to the characteristics of rich sources, renewability and low cost. In the present work, a carboxyl functioned loofah fiber (LF@AA) was synthesized via UV-induced polymerization, and its adsorption capacity [...] Read more.
The heavy metal adsorbents developed based on biomass resources have valuable application prospects due to the characteristics of rich sources, renewability and low cost. In the present work, a carboxyl functioned loofah fiber (LF@AA) was synthesized via UV-induced polymerization, and its adsorption capacity for cadmium (Cd2+) was investigated systematically. This modification resulted in the effective combination of a loofah fiber template and polyacrylic acid (PAA), which promoted its adsorption of Cd2+ to significantly increase to 339.3 mg·g−1, and the applicable pH range was 4.0~7.0. Furthermore, the adsorbability of LF@AA remained stable at a high level after eight consecutive cycles. The adsorption kinetics and isotherm parameters revealed that the adsorption characteristics of cadmium conformed to the Weber–Morris and pseudo-second-order kinetics equations, and the adsorption process of cadmium conformed to Redlich–Peterson and Langmuir models. In addition, consequences of EDS, FTIR, and Zeta potential analysis reflected that the main adsorption mechanism should be ion exchange. Cd2+ was drawn to the adsorbent surface by electrostatic binding, and ion exchange occurred to form a bidentate chelate. This study suggests that it is reasonable and feasible to use natural biomass materials to develop efficient adsorbents to treat heavy metal pollution in wastewater. Full article
(This article belongs to the Special Issue Water Pollution and Bioremediation)
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