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Applied Sciences
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Water and Wastewater Treatment: Applied Research on Traditional and Emerging...
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Water and Wastewater Treatment: Applied Research on Traditional and Emerging Contaminants

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Environmental Sciences".

Deadline for manuscript submissions: 20 June 2024 | Viewed by 5363

Special Issue Editors

Prof. Dr. Charles Humphrey

E-Mail Website
Guest Editor
Environmental Health Sciences Program, Department of Health Education and Promotion, College of Health and Human Performance, East Carolina University, Greenville, NC 27858, USA
Interests: on-site wastewater systems; pollutant transport through groundwater and surface water; stormwater management; land use impacts on water quality
Special Issues, Collections and Topics in MDPI journals
Dr. Guy Iverson

E-Mail Website
Assistant Guest Editor
Environmental Health Program, East Carolina University, Greenville, NC 27858, USA
Interests: wastewater management; fate and transport of pollutants in water resources; land-use impacts on water quality; geospatial analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We welcome you to submit your manuscript to this Special Issue of Applied Sciences. This issue focuses on the monitoring and/or treatment of traditional (e.g., nutrients, pathogens, sediment, heavy metals) and emerging (e.g., SARS-CoV-2, pharmaceuticals and personal care products, perfluorinated compounds) contaminants in the water environment. We are soliciting experimental and observational studies documenting concentration or mass reductions in these chemicals in drinking water supplies, groundwater, surface water, and wastewater treatment systems. Short communications and full-length, completed studies describing monitoring techniques and/or treatment processes and technologies will be considered. 

Prof. Dr. Charles Humphrey
Guest Editor

Dr. Guy Iverson
Assistant 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. Applied Sciences 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
  • water quality
  • pollutant
  • traditional and emerging contaminants

Published Papers (3 papers)

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Research

15 pages, 5083 KiB  
Article
Amoxicillin Degradation by TiO2 P25 Solar Heterogeneous Photocatalysis: Influence of pH and Oxidizing Agent H2O2 Addition
by Tania L. Alcázar-Medina, Isaías Chairez-Hernández, Ana A. Lemus-Santana, Cynthia M. Núñez-Núñez and José B. Proal-Nájera
Appl. Sci. 2023, 13(13), 7857; https://doi.org/10.3390/app13137857 - 04 Jul 2023
Cited by 1 | Viewed by 887
Abstract
Over the years, there has been an increase in the consumption of drugs, particularly antibiotics. Amoxicillin (AMX) is considered one of the most widely used antibiotics, causing resistance in microorganisms in the ecosystem where it is found. Additionally, it has been cataloged among [...] Read more.
Over the years, there has been an increase in the consumption of drugs, particularly antibiotics. Amoxicillin (AMX) is considered one of the most widely used antibiotics, causing resistance in microorganisms in the ecosystem where it is found. Additionally, it has been cataloged among the drugs under surveillance by the European Commission since 2020. The present work studies the efficiency of AMX degradation by photolysis and heterogeneous solar photocatalysis processes under different reaction pH levels (3.5, 4.15, 7 and 9) and observing the influence of different doses of H2O2 (nil and 4 mM), as an oxidizing agent. TiO2 P25 was used as photocatalyst, impregnated in glass supports of 0.1 and 1 m2 in flat plate reactors (FPR). A 2 × 2 × 4 statistical analysis carried out after repeated measurements to determine the relationship between the different parameters involved (process, H2O2 dose, and pH). The kinetics of the AMX degradation reaction showed the best rate constant (KphC = 0.10 min−1) under acidic medium conditions (pH 4.15), without addition of H2O2, and by heterogeneous photocatalysis when using a 1 m2 FPR to achieve 100% COD removal. ANCOVA showed significant differences (p < 0.05) in the use of H2O2 for the first minutes of the reaction and in the different FPR surfaces. Full article
(This article belongs to the Special Issue Water and Wastewater Treatment: Applied Research on Traditional and Emerging Contaminants)
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16 pages, 4110 KiB  
Article
The Response of Runoff Pollution Control to Initial Runoff Volume Capture in Sponge City Construction Using SWMM
by Shuai Si, Junqi Li, Yucheng Jiang, Yuzhen Wang and Lian Liu
Appl. Sci. 2022, 12(11), 5617; https://doi.org/10.3390/app12115617 - 01 Jun 2022
Cited by 7 | Viewed by 1567
Abstract
Source facilities can manage stormwater runoff pollutants while also limiting runoff volume in China’s sponge city construction. However, there is no apparent link between source volume control and runoff pollution reduction. This research uses SWMM to develop a model based on the basic [...] Read more.
Source facilities can manage stormwater runoff pollutants while also limiting runoff volume in China’s sponge city construction. However, there is no apparent link between source volume control and runoff pollution reduction. This research uses SWMM to develop a model based on the basic data of a city’s catchment zone in northern China in order to statistically examine the response relationship between the initial runoff volume capture of sponge city construction and the reduction effect of stormwater runoff pollution. Based on the dimensionless constant of the runoff pollution control curve, we suggested a novel approach for evaluating runoff pollution control effectiveness. This method was used to examine the response relationship between runoff volume control and runoff pollution control in three typical initial runoff volume capture facilities in the study area, namely bioretention, permeable pavement, rain barrels, and terminal storage tanks, under various design rainfall conditions. The dimensionless constant (Dc) has good practical application value and can quantitatively quantify the control effect of various facilities on stormwater runoff pollution. The Dc value of the source facilities is higher than that of the terminal control facilities, indicating that the source facilities have a higher ability to reduce rainwater runoff pollution than the terminal facilities, particularly the infiltration facilities. The research ideas and evaluation methods proposed in this paper provide an alternative approach for selecting and optimizing facilities during the planning and designing stages of sponge city construction, which can also be used in the monitoring and evaluation stage after completion to carry out a more effective evaluation of sponge facilities’ effects. Full article
(This article belongs to the Special Issue Water and Wastewater Treatment: Applied Research on Traditional and Emerging Contaminants)
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21 pages, 1077 KiB  
Article
Quantifying Total Phosphorus and Heavy Metals in Residential Septage
by Guy Iverson, Charles P. Humphrey, Jr., Michael O’Driscoll, Jordan Jernigan, Brent Serozi and Christa Sanderford
Appl. Sci. 2022, 12(7), 3336; https://doi.org/10.3390/app12073336 - 25 Mar 2022
Cited by 1 | Viewed by 2392
Abstract
Septic systems are used for wastewater treatment in rural areas. Septic tanks promote stratification of wastewater into solid (sludge and scum) and liquid layers. Pollutant concentrations in the layers of residential septic tanks may be highly variable, and thus septage pumped from tanks [...] Read more.
Septic systems are used for wastewater treatment in rural areas. Septic tanks promote stratification of wastewater into solid (sludge and scum) and liquid layers. Pollutant concentrations in the layers of residential septic tanks may be highly variable, and thus septage pumped from tanks with different layer thicknesses may also be variable. The goal of this study was to quantify the total phosphorus (TP) and heavy metal concentrations and masses of residential septage. The solid and liquid layer thicknesses were measured in 37 septic tanks. Samples were collected from each layer for pollutant concentration analysis. The median TP concentration (10.6 mg L−1) was greatest in the sludge layer, followed by the scum (5.3 mg L−1) and liquid (1.8 mg L−1) layers. Concentrations of heavy metals were highly variable for each layer type. The masses of the TP, cadmium, copper, lead, nickel, and zinc contained median (range) values of 19.4 g (0.9–1041 g), <0.01 g (<0.01–1.99 g), 1.3 g (0.1–520 g), 1.8 g (<0.01–44.2 g), 1.3 g (<0.01–4.3 g), and 13.8 g (0.3–788 g), respectively. Since septage is typically applied on land as a soil amendment for crop growth, it is important that representative composite samples are collected to prevent excess buildup of TP and metals, which may harm yields or environmental health. Full article
(This article belongs to the Special Issue Water and Wastewater Treatment: Applied Research on Traditional and Emerging Contaminants)
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