Download or read book Implementation of Biological Filtration for the Treatment of Cyanobacterial Metabolites written by Emma Sawade and published by IWA Publishing. This book was released on 2015-06-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specific issues investigated in this project were: Identifying the most effective substrate for optimum biofilm formation, and the range of operating conditions for optimum removals to be achieved; developing a standard suite of laboratory tests, both simulated filtration tests and genetic tests, to identify the potential of an existing filter to remove cyanobacterial metabolites; better understanding of the lag period prior to the onset of degradation of several metabolites; and the feasibility of artificially inoculating or “seeding” filters to enhance removal of the cyanobacterial metabolites. This book is co-published with Water Research Australia.
Download or read book Water Treatment for Purification from Cyanobacteria and Cyanotoxins written by Anastasia E. Hiskia and published by John Wiley & Sons. This book was released on 2020-09-28 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive overview of key methods for treating water tainted by cyanobacteria and cyanotoxins Toxigenic cyanobacteria are one of the main health risks associated with water resources. Consequently, the analysis, control, and removal of cyanobacteria and cyanotoxins from water supplies is a high priority research area. This book presents a comprehensive review of the state-of-the-art research on water treatment methods for the removal of cyanobacteria, taste and odor compounds, and cyanotoxins. Starting with an introduction to the subject, Water Treatment for Purification from Cyanobacteria and Cyanotoxins offers chapters on cyanotoxins and human health, conventional physical-chemical treatment for the removal of cyanobacteria/cyanotoxins, removal of cyanobacteria and cyanotoxins by membrane processes, biological treatment for the destruction of cyanotoxins, and conventional disinfection and/or oxidation processes. Other chapters look at advanced oxidation processes, removal/destruction of taste and odour compounds, transformation products of cyanobacterial metabolites during treatment and integrated drinking water processes. Provides a comprehensive overview of key methods for treating water tainted by cyanobacteria and cyanotoxins Bridges the gap between basic knowledge of cyanobacteria/cyanotoxins and practical management guidelines Includes integrated processes case studies and real-life examples Developed within the frame of the European Cooperation in Science and Technology (COST)–funded CYANOCOST A must-have resource for every water treatment plant, Water Treatment for Purification from Cyanobacteria and Cyanotoxins is a valuable resource for all researchers in water chemistry and engineering, environmental chemistry as well as water companies and authorities, water resource engineers and managers, environmental and public health protection organizations.
Download or read book Biological Filtration Processes for the Removal of Algal Metabolites written by and published by . This book was released on 2008 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project has identified biological filtration as a viable water treatment option for the removal of the algal metabolites MIB, geosmin, cylindrosperopsin and the microcystin toxins.
Download or read book Toxic Cyanobacteria in Water written by Ingrid Chorus and published by CRC Press. This book was released on 2021-03-08 with total page 701 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyanobacterial toxins are among the hazardous substances most widely found in water. They occur naturally, but concentrations hazardous to human health are usually due to human activity. Therefore, to protect human health, managing lakes, reservoirs and rivers to prevent cyanobacterial blooms is critical. This second edition of Toxic Cyanobacteria in Water presents the current state of knowledge on the occurrence of cyanobacteria and cyanotoxins as well as their impacts on health through water-related exposure pathways, chiefly drinking-water and recreational activity. It provides scientific and technical background information to support hazard identification, assessment and prioritisation of the risks posed by cyanotoxins, and it outlines approaches for their management at each step of the water-use system. It sets out key practical considerations for developing management strategies, implementing efficient measures and designing monitoring programmes. This enables stakeholders to evaluate whether there is a health risk from toxic cyanobacteria and to mitigate it with appropriate measures. This book is intended for those working on toxic cyanobacteria with a specific focus on public health protection. It intends to empower professionals from different disciplines to communicate and cooperate for sustainable management of toxic cyanobacteria, including public health workers, ecologists, academics, and catchment and waterbody managers. Ingrid Chorus headed the department for Drinking-Water and Swimming-Pool Hygiene at the German Environment Agency. Martin Welker is a limnologist and microbiologist, currently with bioMérieux in Lyon, France.
Download or read book Advances in Gram Negative Oxygenic Photosynthetic Bacteria Research and Application 2012 Edition written by and published by ScholarlyEditions. This book was released on 2012-12-26 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Gram-Negative Oxygenic Photosynthetic Bacteria Research and Application / 2012 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about Gram-Negative Oxygenic Photosynthetic B in a concise format. The editors have built Advances in Gram-Negative Oxygenic Photosynthetic Bacteria Research and Application / 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Gram-Negative Oxygenic Photosynthetic B in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Gram-Negative Oxygenic Photosynthetic Bacteria Research and Application / 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Integrated Membrane Systems for the Removal of Cyanobacterial Toxins and Taste and Odour Compounds written by Mike Dixon and published by . This book was released on 2011 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyanobacteria are a major problem for the water industry as they can produce metabolites toxic to humans in addition to T&O compounds that make drinking water aesthetically displeasing. It is likely that this problem will be intensified by the effects of climate change through reservoir warming. Tropical cyanobacterial species are also becoming more prevalent in more temperate climates. The effective removal of cyanobacterial metabolites is therefore an increasingly important priority for the worldwide water industry. Integrated membrane systems (IMSs) provide a potential water treatment method for the removal of cyanobacteria and their metabolites. The four types of membranes that have been applied for drinking water treatment are microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO). The main parameter controlling the use of membranes for a particular application is normally the pore size. In general, important factors that affect membrane filtration are; pore size of the membrane compared with the size of the particles or molecules, surface chemistry of the membrane (charge, hydrophobicity), flux, recoveries and the degree of fouling. Very few studies have investigated IMS for the removal of extracellular cyanobacterial metabolites and no studies are reported in the literature for these systems for the removal of cyanobacteria. In addition, no published literature is available on the removal of cylindrospermopsin or saxitoxin using membranes. In general, high molecular weight cut-off membranes such as MF and UF may be used to remove cyanobacterial cells and intracellular cyanobacterial metabolites, while low molecular weight cut-off membranes such as NF and RO of the appropriate size range have the potential to remove a range of extracellular cyanobacterial metabolites. For a water supplier to be confident of removing both intracellular and extracellular metabolites, an integrated system with membrane technology paired with another treatment (possibly another membrane) is required. This study assessed the application of IMS including UF and NF membranes, used in conjunction with coagulation and powdered activated carbon (PAC), for the removal cyanobacteria and their metabolites. The cyanobacteria Microcystis aeruginosa, Anabaena circinalis and Cylindrospermopsis raciborskii were studied, and the cyanobacterial metabolites cylindrospermopsin (CYN), microcystins, geosmin (GSM) and 2- methylisoborneol (MIB) were also investigated.
Download or read book Cyanobacteria for Bioremediation of Wastewaters written by Inga Zinicovscaia and published by Springer. This book was released on 2016-01-11 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reflects the use of cyanobacteria for the bioremediation of wastewater through different mechanisms and pathways of transformation and transfer of hazardous substances from one medium to another. The application of microorganisms for bioremediation is determined by their ubiquity, small size, high rate of reproduction and large surface-to-volume cell ratio. Mechanisms of interaction of cyanobacteria with inorganic pollutants include biosorption, bioaccumulation with an opportunity to obtain metal nanoparticles both on the cell surface and inside the cells as well as chelation and inclusion of metals in the composition of certain organic structures. Data presented in the book provides specialists in the field with useful information for bioremediation technologies as well as for obtaining valuable preparations using cyanobacteria.
Download or read book Handbook of Cyanobacterial Monitoring and Cyanotoxin Analysis written by Jussi Meriluoto and published by John Wiley & Sons. This book was released on 2016-12-08 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt: A valuable handbook containing reviews, practical methods and standard operating procedures. A valuable and practical working handbook containing introductory and specialist content that tackles a major and growing field of environmental, microbiological and ecotoxicological monitoring and analysis Includes introductory reviews, practical analytical chapters and a comprehensive listing of almost thirty Standard Operating Procedures (SOPs) For use in the laboratory, in academic and government institutions and industrial settings Those readers will appreciate the research that validates and updates cyanotoxin monitoring and analysis plus adding to approaches for setting standard methods that can be applied worldwide. Wayne Carmichael, Analytical and Bioanalytical Chemistry (2018).
Download or read book Biological Filtration Processes for the Removal of the Cyanobacterial Toxin Cylindrospermopsin written by Shiromani Wasantha Kumari Wijesundara and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cyanotoxin Removal in Drinking Water Treatment Processes written by Verna J. Arnette and published by . This book was released on 2009 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyanobacteria are prokaryotic microorganisms that are present in many environments. The presence of certain genera of cyanobacteria in aquatic systems is of great concern due to potential toxin formation and release. Cyanotoxins have been shown to have undesirable health impacts ranging from acute (skin irritation, gastrointestinal, and neurotoxic) to chronic (liver damage, kidney damage, and possible carcinogenic) effects. The toxins exist in different structural forms, such as alkaloids (anatoxin-a, saxitoxins, cylindrospermopsin) and cyclic peptides (microcystins, nodularin). Current knowledge and occurrence data of cyanotoxins have led to increased regulatory attention for limiting concentrations in water. The purpose of this paper is to review available literature and knowledge on the potential of drinking water treatment processes to remove cyanotoxins. The main mechanisms of contaminant removal in water are: physical (sedimentation, filtration, flotation, adsorption), chemical (oxidation), and biological. These processes may work singularly or in conjunction to accomplish reduction of the target compound. For cyanotoxins, removal efficiency is complicated by the fact that the toxins exist in two forms: intracellular and extracellular (dissolved). If contained within the cell, physical removal processes would likely be the best form of treatment. Once released from the cell, dissolved toxins may require additional treatment. Evaluation of the literature reviewed indicates that many common drinking water treatment processes are capable of removal or degradation of cyanotoxins. A key point when considering treatment for cyanotoxin removal is the form of the toxin (intracellular or extracellular) with respect to the treatment process being utilized. Physical removal of particulate cyanotoxins, either by sedimentation, floatation, or filtration, has been shown to be successful since cyanobacterial cells are generally well removed. However, sedimentation and filtration do not perform well for dissolved toxin removal, except for certain membrane filtration processes. Adsorption on activated carbon has been shown to reduce cyanotoxins, although contact time and competitive natural organic matter (NOM) can affect performance. Chemical processes (ozone, chlorine dioxide, potassium permanganate, chlorine, chloramines) have a tendency towards cell lysis, and may allow free toxin to enter into the water. Depending on the chemical dose applied, residual toxin may or may not be removed. Therefore, the application point of oxidative chemicals and nature of the toxins are extremely important for cyanotoxin reduction. If applied after filtration, ozone and chlorine have been shown to be the most successful in reducing dissolved cyanotoxins. Chlorine dioxide and chloramines have not been shown to reduce toxin levels. Advanced oxidation processes have shown promise for destruction of dissolved toxins, particularly microcystins. Biological treatment via biologically active filtration (either rapid rate or slow sand), has also been shown to be effective for microcystin reduction, although it must be evaluated carefully to avoid incomplete degradation. Additionally, storage of cyanobacterial cells in treatment processes, hydraulic disturbances, pressure gradients, and recycle of waste streams must be considered to avoid lysis of aging cells and subsequent toxin release. Therefore, not only is proper process application important for toxin removal, optimization of plant operations is critical for sustained toxin reduction.
Download or read book Cyanobacterial Harmful Algal Blooms State of the Science and Research Needs written by H. Kenneth Hudnell and published by Springer Science & Business Media. This book was released on 2008-03-13 with total page 955 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the ever-increasing incidence of harmful cyanobacterial algal blooms, this monograph has added urgency and will be essential reading for all sorts of researchers, from neuroscientists to cancer research specialists. The volume contains the proceedings of the 2005 International Symposium on Cyanobacterial Harmful Algal Blooms, and has been edited by H. Kenneth Hudnell, of the US Environmental Protection Agency. It contains much of the most recent research into the subject.
Download or read book Removal of Cyanobacteria and Cyanotoxins in Waters written by Albert Serrà and published by Mdpi AG. This book was released on 2021-10-31 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: In "Removal of Cyanobacteria and Cyanotoxins in Waters" we have attempted to provide readers with a comprehensive overview of the different strategies and alternative treatments currently being studied for the effective removal of cyanobacteria and cyanotoxins from water.
Download or read book Marine Cosmeceuticals written by Se-Kwon Kim and published by CRC Press. This book was released on 2016-04-19 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Cosmeceuticals: Trends and Prospects is a consolidated overview of the marine environment as a productive source of novel cosmeceuticals. It accumulates the latest research in this field from around the globe, highlighting the potential of marine micro and macro flora and fauna as effective agents for the development of novel cosmeceuticals.
Download or read book Management Strategies for Cyanobacteria blue green Algae written by and published by . This book was released on 2010 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monitoring and Regulating Cyanobacterial Metabolites microcystins and Geosmin in Aquatic Systems written by Carlos Joao Pestana and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyanobacterial secondary metabolites can cause serious harm to animals and humans (cyanotoxins) and can have a major financial impact on the potable water and aquaculture industries (taste and odour compounds). Understanding the factors that affect cyanotoxin production can help in exploring means for the control of these secondary metabolites. One of the most prominent cyanotoxins are microcystins and their sister compound nodularin. The biological role of microcystins is poorly understood. A pheromonal effect was observed applying a novel stable isotope labelling eSN) method. Microcystin- LR has been 'shown to stimulate culture growth, limit microcystin synthesis, and affect the distribution of microcystin-LR between the intra- and extra- cellular matrices. Furthermore the control of microcystins in potable water has been explored applying photocatalysis over titanium dioxide. A novel product called Photospheres ' was assessed in its photocatalytic efficiency in the destruction of 12 microcystin analogues and nodularin. The photocatalytic efficiency of the Photospheres ' was further explored in the degradation of four common waste water pollutants (2-chlorophenol, p-cresol, Acid Orange 74, and trichloroethylene) and in a custom built reactor using light emitting diodes as source of irradiation. The monitoring and regulation of cyanobacterial taste and odour compounds, especially geosmin and 2- methylisoborneol is important in the potable water and aquaculture industries. A rapid, robust, sensitive, and cost-effective analysis method using SPE-GC- MS has been developed and is capable of detecting both compounds to sub nano gram levels. The method was successfully applied on spiked laboratory and environmental samples (loch and fishfarm waters). The photocatalytic destruction of both 2-methylisoborneol and geosmin was explored with a custom built flow reactor that was able to degrade> 95 % of both compounds in spiked and environmental samples. Furthermore the application of silicone rubber membranes as passive samplers was explored in spiked and environmental samples, demonstrating that silicone rubber membranes can successfully be used in environmental applications to deliver rapid and accurate determinations of both 2-methylisoborneol and geosmin.
Download or read book Biological Filtration Ozone and Activated Carbon written by and published by . This book was released on 2005 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Treatise on Water Science written by and published by Newnes. This book was released on 2010-09-01 with total page 2131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water quality and management are of great significance globally, as the demand for clean, potable water far exceeds the availability. Water science research brings together the natural and applied sciences, engineering, chemistry, law and policy, and economics, and the Treatise on Water Science seeks to unite these areas through contributions from a global team of author-experts. The 4-volume set examines topics in depth, with an emphasis on innovative research and technologies for those working in applied areas. Published in partnership with and endorsed by the International Water Association (IWA), demonstrating the authority of the content Editor-in-Chief Peter Wilderer, a Stockholm Water Prize recipient, has assembled a world-class team of volume editors and contributing authors Topics related to water resource management, water quality and supply, and handling of wastewater are treated in depth
