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Oecd Guidelines For The Testing Of Chemicals Section 2 Test No 209 Activated Sludge Respiration Inhibition Test Carbon And Ammonium Oxidation
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Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 209: Activated Sludge, Respiration Inhibition Test (Carbon and Ammonium Oxidation) by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 209: Activated Sludge, Respiration Inhibition Test (Carbon and Ammonium Oxidation) written by OECD and published by OECD Publishing. This book was released on 2010-07-23 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline is designed to assess the effects of a substance on micro-organisms from activated sludge of waste-water treatment plants by measuring their respiration rate (carbon and/or ammonium oxidation) as oxygen consumption. The test ...
Book Synopsis Test No. 209: Activated Sludge, Respiration Inhibition Test (Carbon and Ammonium Oxidation) by : Organisation for Economic Co-operation and Development
Download or read book Test No. 209: Activated Sludge, Respiration Inhibition Test (Carbon and Ammonium Oxidation) written by Organisation for Economic Co-operation and Development and published by . This book was released on 2010 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline is designed to assess the effects of a substance on micro-organisms from activated sludge of waste-water treatment plants by measuring their respiration rate (carbon and/or ammonium oxidation) as oxygen consumption. The test results may also serve as an indicator of suitable non-inhibitory concentrations of test substances to be used in biodegradability tests. The test allows the determination of ECx and/or NOEC values of the test substance. The inhibition of three different oxygen uptakes may be determined, i.e. total, heterotrophic only, and that due to nitrification in the absence and presence of N-allylthiourea, a specific nitrification inhibitor. For obtaining both NOEC and ECx, six controls and five treatment concentrations in a geometric series with five replicates are recommended. In each test vessel, test mixtures containing water, synthetic sewage feed and the test substance are incubated at the pH of 7.5 ±0.5 and the temperature within 20±2°C under forced aeration to keep the dissolved oxygen concentration above 60-70% saturation. The oxygen consumption is measured after 3 hours of exposure and additional measurements at 30 minutes of exposure can be performed in the case that the test substance is rapidly degraded.
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 244: Protozoan Activated Sludge Inhibition Test by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 244: Protozoan Activated Sludge Inhibition Test written by OECD and published by OECD Publishing. This book was released on 2017-10-09 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes a method to assess effects of a test chemical on the phagocytotic activity of activated sludge containing protozoan organisms under defined conditions in the presence of different concentrations of the test chemical. The principle of biological sewage-treatment ...
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 3 Test No. 320: Determining Anaerobic Transformation of Chemicals in Liquid Manure by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 3 Test No. 320: Determining Anaerobic Transformation of Chemicals in Liquid Manure written by OECD and published by OECD Publishing. This book was released on 2022-06-30 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes a standardised method to examine the transformation of chemicals in pig and cattle liquid manure under anaerobic conditions.
Book Synopsis OECD Guidelines for the Testing of Chemicals / Section 2: Effects on Biotic Systems Summary of Considerations in the Report from the OECD Expert Group on Ecotoxicology by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals / Section 2: Effects on Biotic Systems Summary of Considerations in the Report from the OECD Expert Group on Ecotoxicology written by OECD and published by OECD Publishing. This book was released on 2006-09-11 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 246: Bumblebee, Acute Contact Toxicity Test by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 246: Bumblebee, Acute Contact Toxicity Test written by OECD and published by OECD Publishing. This book was released on 2017-10-09 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes a method to assess effects of a test chemical on the phagocytotic activity of activated sludge containing protozoan organisms under defined conditions in the presence of different concentrations of the test chemical. The principle of biological sewage-treatment ...
Book Synopsis Advances in Applied Microbiology by :
Download or read book Advances in Applied Microbiology written by and published by Academic Press. This book was released on 2021-06-15 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Applied Microbiology, Volume 115 continues the comprehensive reach of this widely read and authoritative review source in microbiology. Users will find invaluable references and information on a variety of areas relating to the topic of microbiology, with this release focusing on the preparation of functional oligosaccharides using microbial coupling fermentation. Contains contributions from leading authorities in the field Informs and updates on the latest developments in the field of microbiology Includes discussions on the role of specific molecules in pathogen life stages, interactions, and much more
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 210: Fish, Early-life Stage Toxicity Test by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 210: Fish, Early-life Stage Toxicity Test written by OECD and published by OECD Publishing. This book was released on 2013-07-26 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The test method described in this Test Guideline, is intended to define the lethal and sub-lethal effects of chemicals on the early life stages of the species tested. The early-life stages of fish are exposed to five concentrations of the test ...
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 3 Test No. 303: Simulation Test - Aerobic Sewage Treatment -- A: Activated Sludge Units; B: Biofilms by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 3 Test No. 303: Simulation Test - Aerobic Sewage Treatment -- A: Activated Sludge Units; B: Biofilms written by OECD and published by OECD Publishing. This book was released on 2001-01-22 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes two simulations tests used in the aerobic sewage treatment. Activated Sludge Units are designed to determine the elimination and the primary and/or ultimate biodegradation of water-soluble organic compounds by aerobic ...
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 3 Test No. 301: Ready Biodegradability by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 3 Test No. 301: Ready Biodegradability written by OECD and published by OECD Publishing. This book was released on 1992-07-17 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes six methods that permit the screening of chemicals for ready biodegradability in an aerobic aqueous medium. The methods are: the DOC Die-Away, the CO2 Evolution (Modified Sturm Test), the MITI (I) (Ministry of ...
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 3 Test No. 302A: Inherent Biodegradability: Modified SCAS Test by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 3 Test No. 302A: Inherent Biodegradability: Modified SCAS Test written by OECD and published by OECD Publishing. This book was released on 1981-05-12 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes a method which is an adaptation of the Soap and Detergent Association semi-continuous activated sludge (SCAS) procedure for assessing the primary biodegradation of alkyl benzene sulphonate. The test does not simulate ...
Book Synopsis Environmentally Friendly and Biobased Lubricants by : Brajendra K. Sharma
Download or read book Environmentally Friendly and Biobased Lubricants written by Brajendra K. Sharma and published by CRC Press. This book was released on 2016-09-19 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Comprehensive Review of Developing Environmentally Friendly Lubricants A push from environmentally savvy consumers along with recent changes in governmental regulations have paved the way for a marketplace of products with high levels of environmental performance. Fueled by the growing demand for biobased lubricants, Environmentally Friendly and Biobased Lubricants highlights the development of environmentally friendly additives that are compatible with environmental regulations and describes the approaches being used in this emerging area. Derived from research topics shared over the years at various technical sessions of the Society of Tribologists and Lubrication Engineers (STLE) Annual Meetings, the book includes a critical assessment of gaps and weaknesses in the field of environmentally friendly fluids and biobased lubricants. Each chapter is written by authors selected from the environmentally friendly fluids and biobased lubricants sessions of STLE and also incorporates input from prominent researchers invited to take part in the book. Expert contributors discuss the control, production, usage, and disposal of lubricants; factor in related policies, laws, and regulations around the world; and include case studies demonstrating the uses and values of commercially viable biobased lubricants. The book is divided into five sections that cover advanced environmentally friendly base oils and feedstocks, biobased hydraulic lubricants and biodegradability, chemically/enzymatically modified environmentally friendly base oils, vegetable oil–based environmentally friendly fluids, and additives for environmentally friendly fluids.
Book Synopsis Chemometrics and Cheminformatics in Aquatic Toxicology by : Kunal Roy
Download or read book Chemometrics and Cheminformatics in Aquatic Toxicology written by Kunal Roy and published by John Wiley & Sons. This book was released on 2021-12-01 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Das Buch Chemometrics and Cheminformatics in Aquatic Toxicology befasst sich mit den bestehenden und neu auftretenden Problemen der Verschmutzung der aquatischen Umwelt durch verschiedene metallische und organische Schadstoffe, insbesondere Industriechemikalien, Pharmazeutika, Kosmetika, Biozide, Nanomaterialien, Pestizide, Tenside, Farbstoffe und viele weitere. Es werden verschiedene chemometrische und cheminformatische Instrumente für Laien beschrieben mitsamt ihrer Anwendung auf die Analyse und Modellierung der Toxizitätsdaten von Chemikalien in Bezug auf unterschiedliche aquatische Organismen. Eine Reihe von Datenbanken zur aquatischen Toxizität sowie chemometrische Softwaretools und Webserver werden vorgestellt und praktische Beispiele für die Modellentwicklung gegeben, einschließlich der entsprechenden Abbildungen. Darüber hinaus enthält das Werk Fallstudien und Literaturberichte, um das Verständnis des Themas abzurunden. Außerdem lernen die Leserinnen und Leser Werkzeuge und Protokolle wie maschinelles Lernen, Data Mining sowie Methoden des QSAR-basierten und ligandenbasierten chemischen Designs kennen. Darüber hinaus bietet das Werk: * Eine umfassende Einführung in chemometrische und cheminformatische Instrumente und Techniken, insbesondere maschinelles Lernen und Data Mining * Eine Darstellung von Datenbanken zur aquatischen Toxizität, chemometrischen Softwaretools und Webservern * Praktische Beispiele und Fallstudien zur Verdeutlichung und Veranschaulichung der im Buch enthaltenen Konzepte * Eine kompakte Erläuterung der chemometrischen und cheminformatischen Instrumente sowie ihrer Anwendung auf die Analyse und Modellierung von Toxizitätsdaten Chemometrics and Cheminformatics in Aquatic Toxicology ist ideal für Forschende und Studierende der Chemie sowie der Umwelt- und Pharmawissenschaften und sollte auch in den Bibliotheken von Fachleuten in der chemischen Industrie sowie Aufsichtsbehörden, die sich mit Chemometrie beschäftigen, einen Platz finden.
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 217: Soil Microorganisms: Carbon Transformation Test by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 217: Soil Microorganisms: Carbon Transformation Test written by OECD and published by OECD Publishing. This book was released on 2000-01-21 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes a laboratory test method designed to investigate long term potential effects of a single exposure of agrochemicals/non agrochemicals on carbon transformation activity of soil microorganisms. A minimum of two test ...
Book Synopsis Water Science and Technology by : Nicholas Gray
Download or read book Water Science and Technology written by Nicholas Gray and published by CRC Press. This book was released on 2017-04-07 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water has become one of the most important issues of our time intertwined with global warming and population expansion. The management of water supplies and the conservation of water resources remains one of the most challenging yet exciting issues of our time. Water and wastewater treatment technologies are constantly evolving creating an increasingly sustainable industry that is one of the world's largest and most interdisciplinary sectors, employing chemists, microbiologists, botanists, zoologists as well as engineers, computer specialists and a range of different management professionals. This accessible student textbook introduces the reader to the key concepts of water science and technology by explaining the fundamentals of hydrobiology, aquatic ecosystems, water treatment and supply, wastewater treatment and integrated catchment management. This fourth edition is extensively changed throughout, with new coverage of the effects of climate change, environmental assessment, sustainability and the threat to biodiversity. The text serves as a primer for both undergraduate and graduate students in either science or engineering who have an interested in freshwater biology/hydrobiology or environmental engineering. It is also useful as a unified transitional course for those who want to span the traditional areas of engineering, biology, chemistry, microbiology or business. Professionals and consultants will also find the book a useful reference.
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 201: Freshwater Alga and Cyanobacteria, Growth Inhibition Test by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 201: Freshwater Alga and Cyanobacteria, Growth Inhibition Test written by OECD and published by OECD Publishing. This book was released on 2011-07-28 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this test is to determine the effects of a substance on the growth of freshwater microalgae and/or cyanobacteria. Exponentially growing test organisms are exposed to the test substance in batch cultures over a period of normally 72 ...
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 204: Fish, Prolonged Toxicity Test: 14-Day Study by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 204: Fish, Prolonged Toxicity Test: 14-Day Study written by OECD and published by OECD Publishing. This book was released on 1984-04-04 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline presents guidance for measurement of lethal and other observed effects in fish exposed to test substances. It may be used in place of Test Guideline 203 if a longer observation period is considered useful and appropriate and the ...
