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Contaminants Of Emerging Concern In Water And Wastewater

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Contaminants of Emerging Concern in Water and Wastewater

Contaminants of Emerging Concern in Water and Wastewater Book
Author : Arturo Hernandez-Maldonado,Lee Blaney
Publisher : Butterworth-Heinemann
Release : 2019-09-15
ISBN : 9780128135617
Language : En, Es, Fr & De

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Book Description :

Contaminants of Emerging Concern in Water and Wastewater: Advanced Treatment Processes presents the state-of-the-art in the design and use of adsorbents, membranes, and UV/oxidation processes, along with the challenges that will need to be addressed to close the gap between development and implementation in water/wastewater treatment applications. Chapters cover adsorbent and membrane design and performance, direct comparison of performance data between new (inorganic and metal organic nanoporous materials) and classic adsorbents and membranes, a list of advantages, disadvantages, and challenges related to performance limitations, regenerability, and upscaling. In addition, users will find sections on the identification of potential site and off-site applications that are listed according to adsorbent and membrane types, transformation of CECs in low- and/or medium-pressure UV irradiation processes used for disinfection, the oxidation of CECs by chlorine and ozone, and a comparison of advanced oxidation processes for the treatment of a variety of CECs in water and wastewater. Addresses the advantages/disadvantages of select technologies, including energy resource needs and waste management issues of reverse osmosis, amongst other issues Presents information on the advancements of technology within the realm of Engineered Treatments of CECs Focuses on the inherent science and technology of advanced treatment processes

Contaminants of Emerging Concern in Water and Wastewater

Contaminants of Emerging Concern in Water and Wastewater Book
Author : Arturo Hernandez-Maldonado,Lee Blaney
Publisher : Butterworth-Heinemann
Release : 2019-10-19
ISBN : 012813562X
Language : En, Es, Fr & De

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Book Description :

Contaminants of Emerging Concern in Water and Wastewater: Advanced Treatment Processes presents the state-of-the-art in the design and use of adsorbents, membranes, and UV/oxidation processes, along with the challenges that will need to be addressed to close the gap between development and implementation in water/wastewater treatment applications. Chapters cover adsorbent and membrane design and performance, direct comparison of performance data between new (inorganic and metal organic nanoporous materials) and classic adsorbents and membranes, a list of advantages, disadvantages, and challenges related to performance limitations, regenerability, and upscaling. In addition, users will find sections on the identification of potential site and off-site applications that are listed according to adsorbent and membrane types, transformation of CECs in low- and/or medium-pressure UV irradiation processes used for disinfection, the oxidation of CECs by chlorine and ozone, and a comparison of advanced oxidation processes for the treatment of a variety of CECs in water and wastewater. Addresses the advantages/disadvantages of select technologies, including energy resource needs and waste management issues of reverse osmosis, amongst other issues Presents information on the advancements of technology within the realm of Engineered Treatments of CECs Focuses on the inherent science and technology of advanced treatment processes

Contaminants of Emerging Concern in Water Treatment

Contaminants of Emerging Concern in Water Treatment Book
Author : Michael Donagher
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Contaminants of Emerging Concern in Water Treatment book written by Michael Donagher, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Contaminants in Drinking and Wastewater Sources

Contaminants in Drinking and Wastewater Sources Book
Author : Manish Kumar,Daniel D. Snow,Ryo Honda,Santanu Mukherjee
Publisher : Springer Nature
Release : 2020-06-29
ISBN : 9811545995
Language : En, Es, Fr & De

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Book Description :

This volume takes a multidisciplinary approach to study and evaluate the global human vulnerability to the exposure of contaminants of emerging concern (CECs) in the natural environment. It provides a comprehensive resource on structurally diverse groups of chemical compounds that have adverse effects on the aquatic environment. It explores the global strength, environmental status, chemical risk assessment and management strategies of CECs with relevant modern techniques. The principle focus is on concurrent emerging water quality issues. It defines the impacts of the environmental exposure of trace concentrations of CECs and/or their metabolites and discusses possible technological advances to combat the emerging pollutants. It will be useful to researchers, multi-stakeholder expert groups, policymakers, and graduate students.

Occurrence and Levels of Typical Contaminants of Emerging Concern CECs in Wastewater from Selected Sewage Treatment Plants STPs in Oman

Occurrence and Levels of Typical Contaminants of Emerging Concern  CECs  in Wastewater from Selected Sewage Treatment Plants  STPs  in Oman Book
Author : Ahmad Rashid Al-Rabaiai
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Occurrence and Levels of Typical Contaminants of Emerging Concern CECs in Wastewater from Selected Sewage Treatment Plants STPs in Oman book written by Ahmad Rashid Al-Rabaiai, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Wastewater Treatment and Reuse Lessons Learned in Technological Developments and Management Issues

Wastewater Treatment and Reuse   Lessons Learned in Technological Developments and Management Issues Book
Author : Anonim
Publisher : Academic Press
Release : 2020-11-01
ISBN : 0323856853
Language : En, Es, Fr & De

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Book Description :

Wastewater Treatment and Reuse - Lessons Learned in Technological Developments and Management Issues, Volume 6, explores a wide breadth of emerging and state-of-the-art technologies. Covers a wide breadth of emerging and state-of-the-art technologies Includes contributions from an international board of authors Provides a comprehensive set of reviews

Emerging Compounds Removal from Wastewater

Emerging Compounds Removal from Wastewater Book
Author : Giusy Lofrano
Publisher : Springer Science & Business Media
Release : 2012-03-31
ISBN : 940073915X
Language : En, Es, Fr & De

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Book Description :

In the last years the release of emerging pollutants such as Endocrine Disruptors (EDCs), Pharmaceuticals and Personal Care Products (PPCPs) into the environment has raised great concern. While investigating how to treat emerging pollutants from water and wastewater, researchers have drawn attention on the implementation of more environmentally friendly technologies able to achieve high removal efficiency at low costs. Emerging Compounds Removal from Wastewater by Green Technologies: Natural and Solar Based Treatments introduces green chemistry in relation to these treatment technologies. More specifically, this volume: • Reviews the suitability of alternative adsorption processes that use natural adsorbents natural materials or agricultural waste in light of the inefficiency of conventional wastewater treatment plants; • Evaluates the potential of constructed wetlands for the removal of some categories of trace contaminant of worldwide relevance in view of their application as decentralized systems; • Highlights the promising role of a special class of oxidation techniques defined as Advanced Oxidation Processes (AOPs) supported by sunlight. This volume will be of great interest to students, technicians, and academics alike who are interested in evaluating and selecting the technologies that lead to better and more sustainable treatment of this huge class of pollutants.

Treating Contaminants of Emerging Concern

Treating Contaminants of Emerging Concern Book
Author : United States. Environmental Protection Agency
Publisher : Unknown
Release : 2010
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

CECs include alkylphenols, flame retardants, hormones, personal care products, pharmaceuticals, steroids, and pesticides. Many CECs enter municipal wastewater through bathing, cleaning, laundry, and the disposal of human waste and unused pharmaceuticals.

Emerging Contaminants in U S Waters

Emerging Contaminants in U S  Waters Book
Author : United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment
Publisher : Unknown
Release : 2008
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Emerging Contaminants in U S Waters book written by United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Wasterwater Reuse Applications and Contaminants of Emerging Concern WRA CEC 2012

Wasterwater Reuse Applications and Contaminants of Emerging Concern  WRA   CEC 2012  Book
Author : Despo Fatta-Kassinos
Publisher : Unknown
Release : 2013
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Wasterwater Reuse Applications and Contaminants of Emerging Concern WRA CEC 2012 book written by Despo Fatta-Kassinos, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

An Examination of Analytical Methods Towards the Complete Analysis of Contaminants of Emerging Concern in Wastewater and Wastewater Impacted Surface Water Soils and Crops

An Examination of Analytical Methods Towards the Complete Analysis of Contaminants of Emerging Concern in Wastewater and Wastewater Impacted Surface Water  Soils  and Crops Book
Author : Kyra Murrell
Publisher : Unknown
Release : 2020
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The presence of contaminants of emerging concern (CECs) in the environment is a growing field of research for analytical environmental scientists. CECs are a class of anthropogenic pollutants not regulated by governmental agencies, and their potential deleterious environmental and human impacts are largely unknown. One of the main sources of CEC entry into the aquatic environment is wastewater treatment plant (WWTP) effluent as the treated water is often released into bodies of water, such as river and streams. Because most WWTPs were not designed to remove organic micropollutants, many CECs are poorly removed in traditional WWTPs and persist in the treated effluent waters. As a model system for study, the University Park WWTP treats the wastewater from the Penn State main campus. Following primary and secondary treatment, effluent water is then disinfected using sodium hypochlorite ("chlorine contact") and pumped for spray irrigation of over 500 acres of agricultural and forested lands called the Living Filter. The full characterization of CECs in environmental matrices requires the use of both targeted and non-targeted analysis employing a variety of advanced analytical techniques and multi-residue extraction methods. Comprehensive two-dimensional gas chromatography (GCxGC) coupled to time of flight mass spectrometry (TOFMS) is utilized for the separation and analysis of complex samples, such as wastewater. In these studies, GCxGC-TOFMS has been utilized for the non-targeted analysis of wastewater influent, effluent, and Living Filter irrigation water. Over the course of three years, these samples were investigated for CECs, revealing a new class of benzotriazole corrosion inhibitors and their transformation products. The tentatively identified chloromethyl-benzotriazole isomers were detected at higher concentrations in the effluent and irrigation water than the influent. Upon further investigation with a lab-scale synthesis, it was determined that the methyl-benzotriazoles in the influent react with sodium hypochlorite during chlorine disinfection to form previously unidentified chloromethyl-benzotriazoles. These compounds were not detected in the groundwater below the Living Filter. Traditionally, the extraction of wastewater and aqueous environmental samples is performed using liquid-liquid extraction (LLE). This method is time consuming and solvent intensive therefore a microextraction method, stir bar sorptive extraction (SBSE) was investigated. SBSE and LLE were compared for their application to multiclass organic contaminants in the University Park wastewater with GCxGC-TOFMS. LLE was found to be a better method for the quantitative analysis of a broader range of contaminants. SBSE was determined to be a more sensitive method for the non-targeted analysis of trace contaminants in effluent samples. These extraction methods were further tested and verified using wastewater from the Bellefonte, PA municipal WWTP as well as surface waters downstream of the WWTP outfall. 32 CECs, including a variety of pharmaceuticals and personal care products, were detected and tentatively identified in the samples. To further explore the fate and transport of CECs in the University Park wastewater, the soil and crops at the Living Filter were investigated. Specifically, corn roots, leaves, and grain were examined separately to determine the uptake and translocation of contaminants throughout the plant. The Living Filter samples were also compared to a corn crop control site at the agricultural research center at Rock Springs because it is not irrigated with the WWTP effluent. Target compounds detected in the soil and corn samples include herbicides, phthalates, and polycyclic aromatic hydrocarbons. Non-targeted principal component analysis of each sample type showed chemical differences between the control and Living Filter samples attributed to the treated wastewater irrigation. In addition, new chloro-dimethyl-benzotriazole compounds were tentatively identified in the wastewater as well as the Living Filter soil and corn root samples. Lastly, another class of CEC, microplastic particles (MPs), was investigated using a different set of analytical techniques. The surface characteristics and chemical composition of neat MP standards were compared to those extracted from personal care products and effluent water from the University Park WWTP. Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy, and Optical Profilometry were all utilized for a more comprehensive view of the MP samples. This proof-of-concept study is the first to combine the three methods for MP analysis and demonstrate that MPs extracted from personal care products and WWTP effluent differ greatly from neat microsphere standards of similar sizes. The following research presented in chapters 2-6 has been published or submitted for publication in peer reviewed journals. Chapter 2 has been published in Science of the Total Environment and chapter 6 was published in Analytical Methods. Chapter 3 has been accepted for publication in Talanta. Chapter 4 has been submitted for publication in Analytical Methods and chapter 5 has been submitted to Chemosphere. I am first author on all five of these publications.

Pharmaceuticals in Marine and Coastal Environments

Pharmaceuticals in Marine and Coastal Environments Book
Author : Juan Carlos Duran-Alvarez,Blanca Jimenez-Cisneros
Publisher : Elsevier
Release : 2021-01-18
ISBN : 9780081029718
Language : En, Es, Fr & De

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Book Description :

Pharmaceuticals in Marine and Coastal Environments: Occurrence, Effects and Challenges in a Changing World is divided into three sections which address a) coastal areas as the main entrance of pharmaceuticals into the ocean, b) the occurrence and distribution of pharmaceuticals in the environmental compartments of the ocean media, and c) the effects that such pollutants may cause to the exposed marine organisms. This book is intended to be a building block in the construction of real and enduring solutions for this kind of pollution. Pharmaceuticals in Marine and Coastal Environments gathers reliable information on the occurrence, distribution, fate and effects of pharmaceuticals in marine systems around the world, with the purpose of providing a wide depiction of the current state of the art on these topics, in order to open new sources of investigation and find suitable solutions to revert this problem from the most factual diagnosis. Includes maps edited by the Water Information Network System of the International Hydrological Program (IHP-WINS) Provides a compilation of information regarding the occurrence and distribution of pharmaceuticals in the marine environment which will help establish new and more efficient monitoring programmes and new research lines on the environmental fate and effects of these pollutants in marine environments Depicts the most important results of environmental risk assessments, which can be used as a first step for further toxicological studies

Measuring and Predicting the Fate of Contaminants of Emerging Concern During Wastewater Treatment

Measuring and Predicting the Fate of Contaminants of Emerging Concern During Wastewater Treatment Book
Author : Zeina Baalbaki
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

"The presence of contaminants of emerging concern (CECs) in the aquatic environment and the associated proven toxic impacts have increasingly alarmed researchers. The discharge of wastewater into surface water was identified as the major source for the release of CECs into the environment. Despite the available data on the removal of CECs in wastewater treatment plants (WWTPs) in the literature, previous studies had several shortcomings, resulting in an inaccurate prediction of the CEC fate. This PhD project aimed at monitoring the fate of CECs in different treatment steps with special consideration to the hydrodynamics of the treatment units and adsorption to sludge. The project also aimed at developing and calibrating a model to predict the fate of target CECs in the most widespread secondary treatment technology: the activated sludge process. Among the various classes of CECs, this thesis focused on the widely consumed pharmaceuticals, personal care products, drugs of abuse, hormones, stimulants and artificial sweeteners based on evidences of their presence in treated wastewater implying their inefficient removal during treatment. Recently, the hydraulic characteristics of WWTPs were demonstrated to bias the calculations of CEC removal if not accounted for. To address this issue, the fractionated approach that integrates hydraulic modelling and improved sampling strategies was recently proposed. In order to verify the capability of the fractionated approach at capturing the hydraulic differences, the temperature and electric conductivity of wastewater were used as tracers to model the hydraulics of two full-scale WWTPs. Results demonstrated that a distinctive model was necessary to describe the hydraulics in each WWTP, requiring different number of days for sampling, as well as different CEC removal calculations.In order to explore the contribution of the different fate pathways to the removal of CEC during wastewater treatment, a sampling campaign was performed in a WWTP using an optimized sampling strategy based on the fractionated approach to collect and chemically analyze both wastewater and sludge samples. This allowed performing a mass balance on the incoming load of CECs, which was carried out for the first time with consideration to the hydraulic characteristics. Results indicated that for 21 out of 24 investigated CECs, degradation was the major removal process, with sorption accounting for

LuminoTox as a Tool to Monitor Contaminants of Emerging Concern in Municipal Secondary Effluent and Their Removal During Treatment by Ozone

LuminoTox as a Tool to Monitor Contaminants of Emerging Concern in Municipal Secondary Effluent and Their Removal During Treatment by Ozone Book
Author : Meghan Marshall
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

"Conventional wastewater treatment plants were not designed to remove contaminants of emerging concern (CECs), and hence these chemicals have been shown to contribute to contamination into the environment, where CECs ultimately exist in the parts per trillion to parts per million concentration range. CECs have been shown to induce toxicity in aquatic life which has led to concern from researchers, governments and more recently the general public. Consequently, there is a pressing need for technologies to remove CECs and their associated toxicity, and for wastewater quality measurement methods to monitor these contaminants. Treatment of wastewater by ozone has been shown to reduce or remove many CECs; while many studies have demonstrated a decrease in the toxicity associated with their removal, some have reported a toxicity increase. This highlights the need to monitor the success of wastewater treatment by ozone using bioassays. The LuminoTox bioassay, which measures photosynthetic inhibition, was proposed as a tool for this application. While the LuminoTox has been used for different types of water analysis, there is limited research on its applicability for wastewater monitoring, and in particular, in municipal secondary effluents (SEs). In this PhD project, the LuminoTox was explored as a tool for the detection of CECs in wastewater and for monitoring the removal of CEC-associated toxicity during treatment by ozone. Two current LuminoTox biosensors were explored: Photosynthetic Enzyme Complexes (PECs), and Stabilized Aqueous Photosynthetic Systems I (SAPS I), as well as a new biosensor, SAPS II. In this PhD, the LuminoTox proved to be a good monitoring tool for toxicity of SEs and demonstrated the ability to detect and distinguish changes in CECs in wastewater mixtures. Furthermore, it proved to be excellent at monitoring wastewater during treatment by ozone. The LuminoTox, however, demonstrated limited CEC sensitivity at environmentally relevant concentrations. The LuminoTox pre-concentration method increased the sensitivity of the LuminoTox into the range applicable to native CECs in SE but further development of the sample preparation method is required prior to implementing the technology for wastewater monitoring. " --

Contaminants of Emerging Concern

Contaminants of Emerging Concern Book
Author : Vibhuti Matta
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Emerging contaminants such as pharmaceuticals and personal care products (PPCPs), herbicides, pesticides, plasticizers, fire retardants, polycyclic aromatic hydrocarbons (PAHs), and other organic waste are increasingly being detected in surface water and ground water. These contaminants can enter into the environment through wastewater treatment plant effluent and agriculture runoff. Many of these emerging contaminants tend to be biologically active at very low concentrations, typically occur in water as part of complex mixtures, and may impact biota at concentrations not detected using traditional toxicity tests (e.g. LC 50 tests). This study focuses on utilizing novel Daphnid optical bioassays to examine the toxicity of selected emerging contaminants. The chemicals selected for this study are found in surface water. Chemicals that are known neuroactive agents were selected. Anticholineesterase, physostigmine(drug) and diazinon(insecticides)[cholinergic system], and the antidepressant, fluoxetine[serotonergic system]. Triclosan and triclocarban are antibiotics that are used in antibacterial soaps and a number of other products, and these chemicals and their transformation products resulting form photodegredation. They do not have any known biological targets within Daphni. Two different optical tracking assays were used to evaluate changes in Daphnid swimming behavior Daphnid cardio-respiratory function as a result of exposure to diazinon, fluoxetine, triclosan, triclocarban and photodegredates of the two antibiotics.

Removal of Contaminants of Emerging Concern CECs from Wastewater Using Pilot Ozonation Technology

Removal of Contaminants of Emerging Concern  CECs  from Wastewater Using Pilot Ozonation Technology Book
Author : Melissa Djap
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

"There is a growing concern about contaminants of emerging concern (CECs) found in the environment. These CECs include pharmaceuticals, personal care products and illicit drugs that are often not easily removed using conventional treatment technologies. Aclarus has developed a low-cost, low energy ozonation system that may be applied to the treatment of wastewater. The objective of this thesis was to test the potential of the ozonation used as a disinfection technology, to remove CECs and reduce toxicity. The evaluation was performed using the Aclarus AOWWT-10 pilot ozonation unit applied to the secondary effluent at the wastewater treatment plant in Peterborough, Ontario. The unit was operated in parallel to a full-scale ultraviolet (UV) disinfection unit. A suite of illicit drugs and indicator compound were selected as a representative sample of CECs in wastewater. Wastewater samples collected prior to and after ozone or UV treatment were extracted using solid-phase extraction, and thereafter quantified for target compounds using LC/MS-MS (Orbitrap XL, Thermo) and subjected to toxicity testing. From experimental results, ozonation treatment led to disinfection levels comparable to the level obtained in the full-scale UV treatment system (>99% disinfection based on Escherichia coli counts), but yielded much higher CEC removals for a large variety of target compounds, with an average of 86% for ozonation compared to an average of 7% for UV. Statistical analysis showed that both flow rate of water through the ozonation system, as well as the level of ozone generation (i.e. ozone dose) significantly affected the removal of CECs, while the interaction between the two factors, and also system pressure had no significant effects. Based on the results of a factorial design experimental plan, optimal CEC removal can be obtained by running the Aclarus system at a flow rate of 5 gal/min, with the use of two ozone generators fed by oxygen, corresponding to an ozone dose of 5.3 mg/L. Flow rates lower than 5 gal/min were found to cause no significant additional removal of CECs.Toxicity analysis of the samples using the Microtox systems indicated that ozone-treated samples had decreased toxicity as compared to pre-treated water (secondary effluent), whilst post-UV treated water were shown to have increased toxicity after UV treatment. These results confirm our hypothesis that ozonation has additional benefits, CEC removal and decreased toxicity, even when used as a disinfection unit." --

Catalytic Ozonation for the Removal of Contaminants of Emerging Concern and Disinfection of Wastewater

Catalytic Ozonation for the Removal of Contaminants of Emerging Concern and Disinfection of Wastewater Book
Author : Petr Kolosov
Publisher : Unknown
Release : 2019
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

"The increasingly more stringent regulations related to wastewater quality and the inability of conventional wastewater treatment to adequately eliminate contaminants of emerging concern (CECs) make it essential to develop novel treatment approaches to upgrade existing treatment train. Catalytic ozonation is one of the newest advanced oxidation processes (AOPs) investigated as a strategy to improve the quality of wastewater prior to discharge in the environment. The present Ph.D. thesis focused on expending the knowledge about catalytic ozonation and identify novel materials as efficient catalysts for CECs removal and wastewater disinfection. The results of this research are presented in two manuscripts. The first manuscript reports on the screening of the potential catalysts, on the apparent reaction kinetics, and on the reusability of the most promising catalysts. The screening was conducted in a semi-batch reactor in MilliQ water (MQW) and synthetic wastewater. TiO2/Al2O3, AL-1010S (Al2O3-based catalyst), and Polonite® were shown to enhance the efficiency of catalytic treatment for the CECs removal and disinfection of E. coli. The apparent kinetic reaction between oxidative species (ozone and hydroxyl radicals) and atrazine (ATZ) was studied in a batch reactor in MQW with the addition of scavengers. The reusability experiments demonstrated that TiO2/Al2O3 and AL-1010S maintained their efficiency over four consecutive days, with removal of ATZ at the level of more than 90% and disinfection efficiency exceeding the one obtained using non-catalytic ozonation by more than 1.5 MPN Log units. Polonite® provided the least stable efficiency as a function of time but provided significant increase in disinfection. The second manuscript reports on the effect of wastewater characteristics (chemical oxygen demand (COD) and nitrite (NO2) concentration) and operating conditions (ozone to catalysts ratio, ozone concentration, and hydraulic retention time (HRT)) on process efficiency using the two most promising materials identified, Polonite® and AL-1010S. The optimal parameters for disinfection and ATZ removal were defined to be 8 g-O3 nm3 of ozone gas concentration, 10 minutes of HRT and a ratio of 0.11 of ozone gas concentration to catalyst loading. Both NO2 and COD concentrations greatly impacted the efficiency of treatment but the use of AL-1010S or Polonite® rendered the process less sensitive to variations of these wastewater characteristics. The benefits of catalytic ozonation using AL-1010S or Polonite® were verified for the disinfection of effluent wastewaters collected from two municipal wastewater treatment plants but analytical challenges limited the information available to conclude on the potential for improved CEC removal." --

The Secret Handbook of the Blue Circle

The Secret Handbook of the Blue Circle Book
Author : Antonis Papatheodoulou
Publisher : IWA Publishing
Release : 2019-12-15
ISBN : 9781789061086
Language : En, Es, Fr & De

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Book Description :

Concept Development and Scientific Editing: Despo Fatta-Kassinos The book was inspired by the scientific work carried out by the research group of Nireas International Water Research Center (Nireas-IWRC) at the University of Cyprus in the field of wastewater treatment and reuse. The work is led by Dr. Despo Fatta-Kassinos, who is an Associate Professor at the Department of Civil and Environmental Engineering and Director of Nireas-IWRC. The group worked together with Antonis Papatheodoulou, one of the Greece’s best children’s storytellers, and developed an interesting educational adventure through which children can understand the vital role of water in life. There is increasing recognition of the power of children’s early thinking and learning, as well as a belief that science may be of particular importance in early childhood, contributing not only to the future scientific understanding of children, but also to building important skills and attitudes for learning, establishing high levels of scientific literacy and strengthening scientific inquiry. Educating the young generation and increasing awareness on various aspects of the water cycle and wastewater reuse was the motivation for the development of ‘The Secret Handbook of the Blue Circle’. Six Water Scientists, who are defenders and protectors of the most important substance on the planet (i.e. water), Dr. Tom Atom, Dr. Celia Circle, Dr. Scot Water, Dr. Glow McCrystal, General Claire Clean and Dr. André Antib, are looking for helpers to become new members of their ‘Eternal Blue Circle Society’. The eight Secret Chapters of the book, include among others: knowledge on what water is, its chemical structure and properties, its cycle, its uses and its significance, water scarcity, a historical retrospective of a city's water supply from antiquity to date, the typical treatment processes applied for the production of drinking water, the water pollution caused by traditional pollutants and contaminants of emerging concern, the processes applied in wastewater treatment plants, and the presence of such contaminants in the environment. The mission of the members of the ‘Eternal Blue Circle Society’ is to carefully study contaminants of emerging concern and protect water and nature. Suitable for children of six years and upwards, the book also outlines simple ways in which the children can contribute to the protection of water quantity and quality and raise awareness on the topic themselves.

A Review of Emerging Pollutants of Concern in Drinking Water and Wastewater

A Review of Emerging Pollutants of Concern in Drinking Water and Wastewater Book
Author : Rebekah Corinne Guill
Publisher : Unknown
Release : 2010
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The purpose of this project is to identify emerging pollutants of concern in wastewater and drinking water and the challenges associated with their discovery. The most frequently detected contaminants taking the spotlight included pharmacueticals, personal care products, and endocrine disprupting chemicals at ultra trace levels.