gas chlorine system Articles

Application As part of a scheme to bring safe drinking water to 1.5 million people in Omdurman City, part of Greater Khartoum, Biwater International was appointed by the Government of Sudan to undertake a major turnkey design and construction project. Chlorine is the conventional means of water disinfection, so Biwater brought in ERG to design and manufacture the emergency gas ...

Feb. 15, 2012

By ERG (Air Pollution Control) Ltd

Introduction Some years agoago, the bleaching process in the paper industry was changed from using Chlorine (Cl2) as bleaching agent to Chlorine dioxide (ClO2). This was a challenge forThis posed a major challenge to industrial hygienists, as there were no sensors or detectors available that were specific to Chlorine dioxide: There was no sensor technology for gas detectors available that ...

Jan. 22, 2015

By Compur Monitors GmbH & Co. KG

Abstract A number of wastewater treatment facilities using gas disinfection have decided to convert to liquid disinfection for several reasons including safety, regulatory, security, and economic factors. An optimal technology plan should be developed to facilitate the conversion. This presentation provides a case study of a large chlorine disinfection system, and demonstrates key issues of ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Project: CHLORINE HEADERS AND TRANSFER DUCT REPLACEMENT Client: Major chlor-alkali plant in the Middle East General Scope: All four chlorine gas collection headers, each one 24” through 42” diameter, and all 54” diameter chlorine gas transfer duct from headers to chlorine coolers was installed in ...

Mar. 22, 2016

By Fibrex Corporation

By designing a 70-foot deep barrier wall, Black & Veatch was able to cut off contaminant source areas from a creek near New Castle, Delaware. The groundwater treatment system that Black & Veatch designed prevents site contamination from reaching the underlying drinking water aquifer. The Standard Chlorine of Delaware Site is a 65 acre area including an abandoned chlorobenzene ...

Apr. 11, 2007

By Black & Veatch Corporation

The most widespread disinfectant used in the treatment of drinking water is chlorine, which can be applied in a variety of ways. History has taught us that, in bacteriological terms, chlorinating water is a proven way of disinfecting drinking water. After all, more than 75 years have passed since chlorine was used to disinfect drinking water for the first time. Many years of experience have shown ...

Oct. 28, 2008

Chlorine, dissolved in liquid is one of the most effective and economical semi-killers for the treatment of water to make it potable or safe to drink. Chlorine's powerful disinfectant qualities come from its ability to bond with and destroy the outer surfaces of bacteria and viruses. Drinking water chlorination is one of the most widely used methods to safeguard chinking water supplies. In ...

Jan. 1, 2005

By IC Controls Ltd.

There are several methods for controlling the addition of chlorine into a process. These methods include flow proportional injection, ORP (oxidation reduction potential) or a residual chlorine analyzer. Each method measures a different process characteristic. Depending on the specific type of process being controlled, there generally is a best choice for controlling the injection of either ...

Jan. 1, 2007

By Walchem, Iwaki America Inc.

For nearly 100 years, ozone has been used all over the world for water sanitation. It is nature’s strongest oxidizer and has a byproduct of pure oxygen. Chlorine, on the other hand, is a very effective, time-proven chemical, but is ineffective against hard-to-kill microorganisms such as cryptosporidium. It also has some unpleasant byproducts. Together, however, these two substances can ...

Nov. 1, 2009

By ClearWater Tech, LLC - part of Aquion, Inc.

ABSTRACTChlorine has been used as a standard for disinfecting wastewater for many years. While being the standard There are many levels of automation for control of disinfection. To select the best control approach for your facility both control strategies and chlorination chemistry must be understood. Permit conditions must also be fully identified; organism concentrations and operational data. ...

Oct. 22, 2006

By Water Environment Federation (WEF)

 ABSTRACT Gaseous chlorine has been effectively used for disinfection in drinking water and wastewater treatment for decades. While various regulatory programs have placed numerous restrictions on the uses of this chemical due to its hazardous nature, recent focus on the possibility of a terrorist attack at a drinking water or wastewater facility, has underscored the potential hazard ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Overview A Fortune 50 company implemented a remedial project to collect and treat polluted groundwater from a site in Central New York, preventing the mitigation of impacted groundwater from flowing into local waterways. An engineering and construction firm was hired to design and build an effective, efficient groundwater treatment system. Collection of the polluted water would be ...

Dec. 7, 2011

By Anguil Environmental Systems, Inc.

While chlorine gas is widely used in swimming pools, water treatment facilities, cleaning products, pharmaceutical products, and in many other industries, the gas is highly toxic when handled improperly. Training your workers on how to safely use chlorine is one part of health and safety best practices; monitoring your workplace for chlorine leaks is another. Learn about the hidden dangers in ...

May 3, 2016

By PureAire Monitoring Systems, Inc

Introduction This paper presents the results of a scaled and phased approach to source remediation of high concentrations of recalcitrant chlorinated solvent compounds via soil vapor extraction (SVE) and vapor treatment at a Site in Southern California. Phase I began with refrigerated condensation (C3) in order to achieve high mass removal rates to reduce lifecycle costs and time ...

Oct. 13, 2010

By GEO Inc

PROJECT DESCRIPTION Between 1979 and 1980, industrial and hazardous wastes were disposed of at the Site in a series of unlined pits, each of which was used for a particular type of waste disposal. It is reported based on evaluations of manifests that approximately 3.4 million gallons of hazardous liquid wastes and between 3,700 and 4,100 tons of solid wastes were disposed of in the pits ...

Oct. 13, 2010

By GEO Inc

Problem A Fortune 50 company implemented a remedial project to collect and treat polluted groundwater from a site in Central New York, preventing the mitigation of impacted groundwater from flowing into local waterways. An engineering and construction firm was hired to design and build an effective, efficient groundwater treatment system. Collection of the polluted water would be done ...

Dec. 1, 2007

By Anguil Environmental Systems, Inc.

Project: CHLORINE HEADERS AND TRANSFER DUCT REPLACEMENT Client: Major chlor-alkali plant in the Middle East General Scope: All four chlorine gas collection headers, each one 24” through 42” diameter, and all 54” diameter chlorine gas transfer duct from headers to chlorine coolers was installed in 1996. The service of this ...

Mar. 22, 2016

By Fibrex Corporation

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 ...

Oct. 20, 2015

By AquaGas Pty Ltd

Recently, we have seen a growing trend towards the use of a less reliable and more costly disinfection chemical, Sodium Hypochlorite. Much of this can be attributed to the fact that large companies making chemical metering pumps for other uses or other alternative disinfection devices as well as chemical suppliers who profit more by selling costly Sodium Hypochlorite have proliferated misleading ...

May 4, 2007

Chlorine is a strong oxidant that in normal conditions and in its pure state formsdichlorine, a toxic gas with a yellow-greenish colour formed by diatomic molecules (Cl2) that are about 2.5 times heavier than air and have an unpleasant smell. Among its multiple applications and due to its powerful oxidising nature, it is widely used forwater purificationin sewage treatment plants and as ...

Sep. 19, 2016

By Bioconservacion SA