chlorination chemical Articles
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Indoor Air Quality Guideline - Chlorinated Chemicals in your Home
Several chlorinated chemicals can cause cancer and other serious health problems. These chemicals can come from consumer products you buy in the store, dry-cleaned clothes, and treated municipal water. Air levels of these chemicals, therefore, are generally higher in your home than outdoors. This indoor air quality guideline can help you identify possible sources of six common chlorinated ...
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Chlorination by-products of fenitrothion
The mutagens produced through chemical reaction between chlorine and the insecticide fenitrothion were studied by using a quadrupole GC-MS. The mutagenicity and the mutagen formation potential (MFP) of the identified by-products were evaluated by the Ames assay (preincubation method) using Salmonella typhimurium TA100 without exogenous activation by S9 mix (TA100-S9). Before conducting GC/MS ...
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Bioremediation Accelerates Brownfield Cleanup
Untitled Document Bioremediation, using CL-out microbes, clears the obstacles to Brownfield redevelopment by reducing wells contaminant concentrations in groundwater and removing the environmental stigma from the property. The CL-out bacteria were selected for their ability to degrade a wide range of organic chemicals under aerobic conditions. CL-out bioremediation of chlorinated solvents does ...
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Lake Josephine Community, FL Hydrogen Sulfide Removal System - Case study
In January 2010, AdEdge Water Technologies, LLC was contacted by Aqua Utilities Florida to provide a hydrogen sulfide removal system for the Lake Josephine Community located in Highlands County, Florida. The existing water system consisted of two wells feeding into a centralized distribution system with a maximum capacity of 230 gpm being consumed by a population of 1,250 persons. The raw water ...
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Lake Josephine Community, Florida - Case Study
In January 2010, AdEdge Water Technologies, LLC was contacted by Aqua Utilities Florida to provide a hydrogen sulfide removal system for the Lake Josephine Community located in Highlands County, Florida. The existing water system consisted of two wells feeding into a centralized distribution system with a maximum capacity of 230 gpm being consumed by a population of 1,250 persons. The raw water ...
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Evaluation of the Aqua-Stream™ Side Stream Filter with Pathex® Antimicrobial Filter Media Part 7: Conclusions
Summary of Study: Beginning in October 2016, AS Filtration, LLC conducted a year-long study to document the effectiveness of a non-oxidizing biocide within a side stream filter on the cooling tower system of a four-story office building in Chattanooga, Tennessee. AS Filtration installed an Aqua-Stream™ side stream filter, utilizing their unique Pathex® antimicrobial filter media, on the ...
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Recent Papers in Adsorption and Ion Exchange Processes
Italian drinking water treatment plants (DWTP) generally use chlorine-based chemicals to achieve the oxidation/disinfection phases of their treatment trains. The main problem related to the application of such disinfectants consists in the formation of disinfection by-products (DBPs) as a result of the reaction with organic substances in the water. Italian regulations set very strict limits for ...
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Remediation of dissolved-phase chlorinated hydrocarbons in fractured bedrock
At a former chlorinated hydrocarbon chemical transfer facility in Buffalo, NY, an approximately one-year pilot study was implemented under the New York State Superfund program to evaluate the impact of emulsified vegetable oil, in particular, EOS, on a concentration of chlorinated hydrocarbons in the offsite dissolved phase groundwater plume within a fractured bedrock aquifer and, if successful, ...
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Drinking Water Treatment Process
Most drinking water comes from a surface water source, such as a lake or river, or a groundwater source, such as a well or spring. This water requires treatment before it can be safely consumed; the level to which the water is treated depends on the source of the water and also on federal regulations. In the United States, for example, the Safe Drinking Water Act was created by the Environmental ...
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Advances in String-Wound Sediment Filter Cartridges
In the mid-1930s, the first string-wound depth filter cartridge entered the U.S. market. It was made from a woven wire mesh core surrounded by a cotton yarn, which was wound to form the depth filtration medium. The yarn itself was a tightly twisted medium and the major filtration essentially took place at the points of crossings of the yarns- which formed a diamond-shaped pat-tern-rather than ...
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Effect of wastewater chlorination on endocrine disruptor removal
Endocrine disrupting chemicals (EDCs) are compounds of mainly anthropogenic origin that interfere with the endocrine system of animals and humans thus causing a series of disorders. Wastewater treatment plants are one of the major routes for transporting such chemicals to the water courses. In the context of this study, several chlorination batch tests were performed in order to assess the ...
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Developments in string wound filter cartridges
String wound filter cartridges are the most commonly used filtration media for reducing contamination in water and other liquids. Filtration applications include reverse osmosis and water softening prefiltration, boiler feed water for steam generation, cooling towers and heat exchangers, bottled water, edible oils, oil and gas production, process water for textiles, electroplating and anodizing ...
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Cable Mgmt: Chlor-Alkali Facility - Case Study
Project Name Westlake Chemicals Chlor-Alkali Expansion Engineering Firms CDI Engineering Chlorine Engineers Corp. LTD Contractor MMR Group Distributor Wholesale Electric Supply in Prairieville, LA Value $1 Million Enduro Products Used Ladder Tray Cable Tray ...
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9 key parameters for the Chlorine and Soda production industry
Large-scale production of chlorine involves several steps and many pieces of equipment. The plant also simultaneously produces sodium hydroxide (caustic soda)hydrogen gas. A typical plant consists of brine production/treatment, cell operations, chlorine cooling & drying, chlorine compression & liquefaction, liquid chlorine storage & loading, caustic handling, evaporation, storage ...
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Spatial diversity of chlorine residual in a drinking water distribution system: application of an integrated fuzzy logic technique
A reduction in the concentration of chlorine, which is used as a chemical disinfectant for water in drinking water distribution systems, can be considered to be an index of the progressive deterioration of water quality. In this work, attention is given to the spatial distribution of the residual chlorine in drinking water distribution systems. The criterion for grouping the water-quality ...
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Photocatalytic and photoelectrochemical inactivation of
Escherichia coli andStaphylococcus aureus Water disinfection usually requires expensive chemicals or equipment. Chlorination is a common disinfection method, although it is not able to inactivate all pathogens. High concentrations of residual chlorine also cause an unpleasant taste and smell in drinking water. As an alternative, photocatalysis and photoelectrochemical treatment has a high disinfection potential in drinking water by ...
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Kinetic modelling approach as a decision support tool for chloraminated distribution systems
Disinfection and distribution system management of chloraminated systems can be a challenging task for water operators due to the complexity of chloramine chemistry. Formation of chloramines and maintenance of a suitable disinfection environment requires careful control of several operational parameters at the plant and at different locations along the distribution system. A mathematical model ...
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Physico-chemical analysis of the sediment samples collected from Thane Creek of Maharashtra, India
Thane Creek is one of the most important ecosystems around Mumbai and Thane, and the mangroves surrounding the ecosystem form the vital green lung for the residents. It is also an important feeding and breeding ground for fishes. Locals have been living in harmony amidst this ecosystem for ages, but in recent past, man has misused this ecosystem by way of releasing sewage, dumping solid waste, ...
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Pulp and Paper Mills Industry - Pollution Prevention Guidelines
Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum emissions ...
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Gas scrubbing using V-texTM technology - Case Studies
Pharmaceuticals GlaxoSmithKline Removal of Acetic Acid vapour from 1000 ppm to below limit of detection Gas flow range 50 to 1000Nm3/hr Maintenance free operation since installation in 1997 Optical Fibres Optical Fibre Manufacturer in Denmark Removal of HCl and SiO2 Five 2 stages units Scrub liquor contained up to 5% weight SiO2 with no blockage Petrochemicals Major ...
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