Download or read book Effect of Mg OH 2 Addition on Odor and Corrosion Associated with H2S and the Effect on Wastewater Treatment Processes written by Ezra M. Yarnell and published by . This book was released on 2000 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Determines the effect of Mg(OH)2 addition to collection systems on odor, corrosion and wastewater treatment performance.
Download or read book The Chemistry and Technology of Magnesia written by Mark A. Shand and published by John Wiley & Sons. This book was released on 2006-06-12 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Complete Guide to Magnesia-From Mining to End Use Often relegated to footnote status in texts, magnesia is nevertheless a valuable substance widely used in applications ranging from wastewater treatment to catalysis. The Chemistry and Technology of Magnesia fills the long-standing gap in the literature with a comprehensive, one-stop reference to "all things magnesia." The book brings together the many strands of information on magnesium compounds, their production, testing and evaluation, technology, applications, and markets. Opening with an introductory history of the chemical, it covers the life cycle of magnesia, natural and synthetic production, and uses in different fields including the environmental, health, and agricultural industries. Readers will find the section on health and safety issues particularly relevant. Chapters include: * The History of Magnesia * Synthetic Magnesia * Pulp Applications * Environmental Applications * Magnesia Cements * Furnaces and Kilns * Post Calcination Processing * Other Magnesia Products * Mining and Processing Magnesite * The Physical and Chemical Properties of Magnesium Oxide * Water and Wastewater Application for Magnesia Products * Magnesia in Polymer Applications * The Role of Magnesium in Animal, Plants, and Human Nutrition * Magnesium Salts and Magnesium Metal * The Formation and Occurrence of Magnesite * Calcination of Magnesium Hydroxide and Carbonate * Miscellaneous Magnesia Applications
Download or read book Odor Corrosion written by Robert P. G. Bowker and published by William Andrew. This book was released on 1989 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Odor & Corrosion Control in Sanit.Sewage
Download or read book Water Environment Technology written by and published by . This book was released on 2003-07 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA 625 1 written by and published by . This book was released on 1976-04 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Odor and Corrosion Control in Sanitary Sewerage Systems and Treatment Plants written by Robert P. G. Bowker and published by CRC Press. This book was released on 1989 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.
Download or read book Odor Control in Wastewater Treatment Plants written by and published by American Society of Civil Engineers. This book was released on 1995-01-01 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mass Transfer of Hydrogen Sulfide in Sewer Drop Structures written by Letian Sun and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen sulfide (H2S) is the primary cause of the widespread odor and corrosion issues in sanitary sewer systems. When wastewater falls in drop structures, the emission of H2S is expected to be significantly enhanced. This study focuses on the mass transfer coefficient, KL, for H2S and other surrogate gases from falling droplets, at turbulent water surface and in drop structures. When wastewater breaks up into small droplets in drop structures, the emission of H2S is expected to be significantly enhanced relative to that of the continuously falling sewage. In this study, laboratory experiments of mass transfer from falling liquid droplets to air were conducted with two gases: H2S and carbon dioxide (CO2). In the testing range of droplet diameter (3.02-4.68 mm) and free-falling height (0.1-1.5 m), the KL value at 20°C was found to be 0.9-4.5 × 10-4 m/s, which increased with the falling height (or velocity) while decreased with the droplet size. A modified equation was proposed to better predict KL. In addition, CO2 was found to be a suitable surrogate for H2S in mass transfer due to the toxicity of H2S. Laboratory experiments were conducted to study the mass transfer at the pool surface with falling water drops or a single jet. In the test range of falling flow rate of 49-223 mm/h and falling velocity of 3.1-5.2 m/s [kinetic energy flux KEF = 0.11-0.80 J/(m2s)], KL for the pool surface was found to be 2.6-14.8 × 10-5 m/s for H2S. KL was found to be 76% larger when the pool surface was impinged by water drops than by a single jet. In addition, KL was 27-47% larger in the half of the water surface directly receiving the drops or jet than the other half. The increase of water depth in the pool promoted the mass transfer, especially for the scenario of a falling jet. Equations were proposed to predict KL under drops or jet. Finally, KL for H2S and for O2 was found almost the same, indicating O2 can be a safe surrogate gas for H2S. Laboratory experiments were conducted using two forms of falling sewage in drop structures: free-falling and attached-falling jets. The results show that KL and concentration deficit ratio, r, increased with an increase of drop height (0.2 - 1.4 m) and a decrease of flow rate (0.9 - 2.0 L/min). Nonlinear correlations between r and the hydraulic parameters were proposed for both jet scenarios, with good agreements with experimental results. The difference between the two jet scenarios appeared to be related to the size of drop structures: in the large drop structure, r of the free-falling jet was larger than that of the attached-falling jet; while in the small drop structure, r was almost the same. Finally, the mass transfer of O2 in a prototype drop structure was estimated. If the drop height is 3 m, almost all the mass transfer happens at the bottom pool of drop structure; if the drop height is 6 m, falling droplets are the main (> 80%) contributor. Field work was carried out in the west area of Edmonton, Alberta, Canada to investigate the wastewater quality and emission of H2S in sewer network. The wastewater samples were collected and analyzed for sulfide and other relevant parameters (e.g., sulfate and COD). Empirical models can predict sulfide generation. The operation of the upstream pump station could cause the sudden increase of H2S in the sewer air of the adjacent discharge manholes. Over 90% of H2S stayed in the liquid phase when wastewater flowed by gravity in the sewer pipes. In the drop structure of 8 m, the H2S concentration in the upstream was 2.6 times of that in downstream and r for H2S was 2.0, which proves the enhancement to the emission of H2S in drop structures. This research provides new insights on the physical processes and modeling of H2S emission in sewer drop structures. The research outcomes are useful for odor and corrosion control in municipal drainage systems.
Download or read book Water Sewage Works written by and published by . This book was released on 1978 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 76 include Reference and data section for 1929 (1929- called Water works and sewerage data section)
Download or read book Operation of Wastewater Treatment Plants written by and published by . This book was released on 2004 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Odours in Wastewater Treatment written by Richard M. Stuetz and published by IWA Publishing. This book was released on 2001-03-01 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wastewater treatment works have the potential to generate unpleasant odours, which can results in annoyance and consequently have a detrimental effect on a local population. As a result 'odour control and prevention' has become an important consideration both in the management of existing facilities and in the design and gaining of planning consent for new works. Odours in Wastewater Treatment provides readers with a detailed discussion on the basic principles involved in the formation of volatile compounds in wastewater treatment. Accounts are given of recent developments in the sampling and measurement of odours, practical examples in the prediction and dispersion of odorous emissions are offered and an overview of the technologies currently used to contain and treat odorous compounds presented. Contents Introduction Odours associated with wastewater treatment Odour sampling and measurement Assessment and prediction of nuisance odours Odour control and treatment
Download or read book Municipal and County Engineering written by and published by . This book was released on 1978 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Methods for the Examination of Water and Wastewater written by American Public Health Association and published by . This book was released on 1981 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Oxidation Processes for Water and Wastewater Treatment written by Simon Parsons and published by IWA Publishing. This book was released on 2004-03-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The suitability of Advanced Oxidation Processes (AOPs) for pollutant degradation was recognised in the early 1970s and much research and development work has been undertaken to commercialise some of these processes. AOPs have shown great potential in treating pollutants at both low and high concentrations and have found applications as diverse as ground water treatment, municipal wastewater sludge destruction and VOCs control. Advanced Oxidation Processes for Water and Wastewater Treatment is an overview of the advanced oxidation processes currently used or proposed for the remediation of water, wastewater, odours and sludge. The book contains two opening chapters which present introductions to advanced oxidation processes and a background to UV photolysis, seven chapters focusing on individual advanced oxidation processes and, finally, three chapters concentrating on selected applications of advanced oxidation processes. Advanced Oxidation Processes for Water and Wastewater Treatment will be invaluable to readers interested in water and wastewater treatment processes, including professionals and suppliers, as well as students and academics studying in this area. Dr Simon Parsons is a Senior Lecturer in Water Sciences at Cranfield University with ten years' experience of industrial and academic research and development.
Download or read book Innovative Wastewater Treatment Resource Recovery Technologies Impacts on Energy Economy and Environment written by Juan M. Lema and published by IWA Publishing. This book was released on 2017-06-15 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the 3R concept applied to wastewater treatment and resource recovery under a double perspective. Firstly, it deals with innovative technologies leading to: Reducing energy requirements, space and impacts; Reusing water and sludge of sufficient quality; and Recovering resources such as energy, nutrients, metals and chemicals, including biopolymers. Besides targeting effective C,N&P removal, other issues such as organic micropollutants, gases and odours emissions are considered. Most of the technologies analysed have been tested at pilot- or at full-scale. Tools and methods for their Economic, Environmental, Legal and Social impact assessment are described. The 3R concept is also applied to Innovative Processes design, considering different levels of innovation: Retrofitting, where novel units are included in more conventional processes; Re-Thinking, which implies a substantial flowsheet modification; and Re-Imagining, with completely new conceptions. Tools are presented for Modelling, Optimising and Selecting the most suitable plant layout for each particular scenario from a holistic technical, economic and environmental point of view.
Download or read book Hydrogen Sulphide Control Manual written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Process Design Manual for Upgrading Existing Wastewater Treatment Plants written by Metcalf & Eddy and published by . This book was released on 1974 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
