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Journals
Processes
Special Issues
Recent Advances in Pollutant Biosorption Processes
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Recent Advances in Pollutant Biosorption Processes

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Environmental and Green Processes".

Deadline for manuscript submissions: closed (30 May 2023) | Viewed by 9694

Special Issue Editor

Prof. Dr. Jose Enrique Torres Vaamonde

E-Mail Website
Guest Editor
Department of Biology, Faculty of Sciences, Universidade da Coruña, 15008 A Coruña, Spain
Interests: biosorption; bioremediation; microalgae; toxicity
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The pollution of natural environments is a problem that concerns society as a whole, and for this reason, the development of technologies that make it possible to eliminate pollutants from natural environments is an essential practice. At present, biosorption is an effective technology for the removal of pollutants, and it is considered to be environmentally friendly. For this reason, it is one of the main tools used in environmental technologies. The development of this technology is booming, and numerous papers have been published on biosorption and its related processes. In recent years, a large number of materials have been evaluated for their possible applications as biosorbents, from dead biomass to living biomass, both free and immobilized; even different patents have been developed. However, there is still much research to be conducted in this field to develop new, cheap, and efficient materials that can improve the potential of this technology. For this reason, it is both interesting and necessary to dedicate a Special Issue to these processes, in which recent information on this technology can be compiled, and the latest research advances developed can be presented. In this Special Issue on "Recent Advances in Pollutant Biosorption Processes", researchers on this topic can publish their contributions. Topics for this Special Issue include, but are not limited to, the following:

  • General laboratory studies on biosorption. Revisions are also welcome;
  • The development of new materials (composite materials) for use in biosorption;
  • Application of biosorption in bioremediation methodologies.

Prof. Dr. Jose Enrique Torres Vaamonde
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. Processes is an international peer-reviewed open access monthly 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

  • biosorption
  • bioaccumulation
  • bioremediation
  • living biomass
  • immobilized biomass
  • composite materials

Published Papers (4 papers)

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Research

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12 pages, 3212 KiB  
Article
Limited Phosphorous Supply Improved Lipid Content of Chlorella vulgaris That Increased Phenol and 2-Chlorophenol Adsorption from Contaminated Water with Acid Treatment
by Sidra Javed, Cyrus Raza Mirza, Aqib Hassan Ali Khan, Walid Khalifa, Belkacem Achour, Rocio Barros, Sohail Yousaf, Tayyab Ashfaq Butt and Mazhar Iqbal
Processes 2022, 10(11), 2435; https://doi.org/10.3390/pr10112435 - 17 Nov 2022
Cited by 6 | Viewed by 1983
Abstract
Phenolic compounds are toxic and ominously present in industrial effluents, which can end up in water bodies, causing potential damage to living organisms. This study employed the dried biomass of freshwater green microalgae Chlorella vulgaris to remove phenol and 2-chlorophenol from an aqueous [...] Read more.
Phenolic compounds are toxic and ominously present in industrial effluents, which can end up in water bodies, causing potential damage to living organisms. This study employed the dried biomass of freshwater green microalgae Chlorella vulgaris to remove phenol and 2-chlorophenol from an aqueous environment. C. vulgaris was grown under different phosphorus- (P) starved conditions, and biomass was treated with sulfuric acid. It was observed that reducing the P level enhanced the lipid content by 7.8 times while decreasing protein by 7.2 times. P-starved C. vulgaris dried biomass removed phenol and 2-chlorophenol by 69 and 57%, respectively, after 180 min from the contaminated water. Acid-treated P-starved C. vulgaris dried biomass removed phenol and 2-chlorophenol by 77 and 75%, respectively, after 180 min. Thus, an economical and eco-friendly P-starved and acid treated C. vulgaris biomass has better potential to remove phenol and 2-chlorophenol from contaminated ground water and industrial wastewater. Full article
(This article belongs to the Special Issue Recent Advances in Pollutant Biosorption Processes)
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30 pages, 21552 KiB  
Article
Waste Derived Biocomposite for Simultaneous Biosorption of Organic Matter and Nutrients from Green Straw Biorefinery Effluent in Continuous Mode Activated Sludge Systems
by Ahmad Hussaini Jagaba, Shamsul Rahman Mohamed Kutty, Lavania Baloo, Gasim Hayder, Abdullahi Haruna Birniwa, Abubakr Taha Bakheit Taha, Mohammed Mnzool and Ibrahim Mohammed Lawal
Processes 2022, 10(11), 2262; https://doi.org/10.3390/pr10112262 - 2 Nov 2022
Cited by 24 | Viewed by 1871
Abstract
The conventional disposal of green straws through burning can be eliminated in a biorefinery that converts them into a range of sustainable commercial products. However, this leads to the generation of green straw biorefinery effluent (GSBE). Green straw biorefineries discharge wastewater into the [...] Read more.
The conventional disposal of green straws through burning can be eliminated in a biorefinery that converts them into a range of sustainable commercial products. However, this leads to the generation of green straw biorefinery effluent (GSBE). Green straw biorefineries discharge wastewater into the ecosystem that contains high concentrations of COD and NH4+−N. It is one of the most notable sources of visual pollution and disruption of aquatic life as well as public health that requires treatment prior to discharge. To improve the GSBE quality for environmental sustainability, the attainment of sustainable development goals 6, 9, and 14, “clean water and sanitation”, “inorganic and organic waste utilization for added values from material”, and “life below water” is very important. Therefore, the effectiveness of the continuous mode activated sludge (CMAS) system and the biocomposite-based–continuous mode activated sludge (SB-CMAS) system in the treatment of GSBE was investigated in this study. Response surface methodology (RSM) was used to optimize the process variables. At their optimized conditions, the performances of CMAS and SB-CMAS were analyzed in terms of COD and NH4+−N. Findings showed 81.21% and 95.50% COD and 78.31% and 87.34% NH4+−N reduction in concentration for CMAS and SB-CMAS, respectively. The high COD and NH4+−N removal efficiencies indicate the better performance of CMAS and SB-CMAS. The first- and second-order models and the modified Stover–Kincannon biokinetic models were utilized to analyze substrate removal rates. It was discovered that the modified Stover models were ideal for the measured data with R2 values 0.99646 and 0.91236 attained for COD and NH4+−N, respectively, in CMAS. The SB-CMAS had 0.99932 and 0.99533 for COD and NH4+−N, respectively. Maximum contaminant elimination was attained at 60% GSBE and 2-day HRT. Thus, to achieve the UN SDGs for 2030, findings from this study have the potential to answer goals 6, 9, and 14. Full article
(This article belongs to the Special Issue Recent Advances in Pollutant Biosorption Processes)
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14 pages, 2899 KiB  
Article
Removal of Dye (Methylene Blue) from Wastewater Using Bio-Char Derived from Agricultural Residues in Palestine: Performance and Isotherm Analysis
by Hassan Sawalha, Aseel Bader, Jinan Sarsour, Maher Al-Jabari and Eldon R. Rene
Processes 2022, 10(10), 2039; https://doi.org/10.3390/pr10102039 - 9 Oct 2022
Cited by 13 | Viewed by 2716
Abstract
The main aim of this study was to perform a parametric study for treating a model dye containing wastewater (i.e., methylene blue, MB) using locally available biomass wastes in Palestine as the adsorbent. Eight different types of biomasses were investigated in batch adsorption [...] Read more.
The main aim of this study was to perform a parametric study for treating a model dye containing wastewater (i.e., methylene blue, MB) using locally available biomass wastes in Palestine as the adsorbent. Eight different types of biomasses were investigated in batch adsorption tests, including coffee grains, almond shells, pistachio shells, date pits, jute sticks, sunflower shells, peanut shells, and grapevine sticks. The experiments were conducted on three different phases of processing for these materials: as natural adsorbents, biochar, and activated carbon. The biochar was prepared by pyrolysis, while ZnCl2 was used to chemically activate the materials for obtaining activated carbon. The influences of pH, initial MB concentration, and adsorbent dosage on the adsorption capacity and kinetics were investigated for activated carbon obtained from sunflower shells. The results indicate that the adsorption efficiency of natural adsorbents and biochar is highly dependent on the biomass type. As a natural adsorbent, peanut hulls demonstrated the maximum efficiency (>95%) for removing MB, whereas date pits showed the lowest efficiency (20%). In terms of biochar, jute sticks provide the highest removal efficiency. After activation with ZnCl2, a considerable increase in their adsorption efficiency (>95%) was obtained for most of the adsorbents, with sunflower shells being the most efficient adsorbent. The results confirm the technical feasibility of the adsorption technology to treat dye containing wastewater using locally available biomass wastes. Full article
(This article belongs to the Special Issue Recent Advances in Pollutant Biosorption Processes)
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Review

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13 pages, 931 KiB  
Review
Microbial Biosensors for Wastewater Monitoring: Mini-Review
by Walter Rojas-Villacorta, Segundo Rojas-Flores, Magaly De La Cruz-Noriega, Héctor Chinchay Espino, Felix Diaz and Moises Gallozzo Cardenas
Processes 2022, 10(10), 2002; https://doi.org/10.3390/pr10102002 - 4 Oct 2022
Cited by 7 | Viewed by 2515
Abstract
Research on the use of microbial biosensors for monitoring wastewater contaminants is a topic that covers few publications compared to their applicability in other fields, such as biomedical research. For this reason, a systematic analysis of the topic was carried out, for which [...] Read more.
Research on the use of microbial biosensors for monitoring wastewater contaminants is a topic that covers few publications compared to their applicability in other fields, such as biomedical research. For this reason, a systematic analysis of the topic was carried out, for which research-type articles were reviewed during the period 2012 to September 2022. For this, different search platforms were used, including PubMed, ScienceDirect, Springer Link, and Scopus, and through the use of search equations a relevant bibliography was located. After that, the research articles were selected based on exclusion criteria. As a result, it was found that, of the 126 articles, only 16 articles were strictly related to the topic, since there was a duplication of articles among the different databases. It was possible to demonstrate the usefulness of microorganisms as components of biosensors to monitor BOD, heavy metals, and inorganic contaminants in wastewater that also had a high sensitivity. Additionally, recombinant DNA techniques were shown to improve the performance of this type of biosensor and can finally be coupled to other emerging technologies, such as microbial fuel cells (MFCs). In conclusion, it was established that microbial biosensors have high acceptability and monitoring characteristics that make them a useful tool to detect low concentrations of pollutants in wastewater that can also provide results in real-time, thus generating forms of ecological safety and social responsibility in companies where wastewater is generated. Full article
(This article belongs to the Special Issue Recent Advances in Pollutant Biosorption Processes)
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