Safe Chlorination Articles on Environmental XPRT

Chlorine levels in pools

In response to a SportExcel CPD seminar in April 2004 on pool water disinfection ISRM is reissuing this updated guidance. Also, recent press reports have highlighted the theoretical risks of high chlorine levels in swimming pools in relation to both pregnant women and levels of childhood asthma. This further reinforces the need for operators to provide the highest pool water standards possible. ...

Apr. 1, 2004

By Hanovia Ltd - a Halma Company

Controoling chlorine costs

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

The Wonders of Ammonia & Chlorine

The two most common chemicals found in your home, office and commercial facilities in one form or another are Ammonia (NH3) and Chlorine (Cl2). They are also two of the oldest and most widely produced chemicals in commercial use around the world. Ammonia, a refrigerant by “nature” Refrigeration by mechanical means goes back to the 1800s and ammonia was among the earliest chemicals to ...

Aug. 17, 2010

By Critical Environment Technologies Canada Inc. (CETCI)

Watalys, safe water anywhere !

WATALYS® from BULANE, a Swiss company is a small portable device which, by electrolysing salt water, enables the production of a chlorinebased disinfectant solution (sodium hypochlorite), which conforms to WHO standards. WATALYS® reduces the costs of disinfection by a factor of ten, and at the same time, frees populations of the need to purchase and store chlorine, by producing it in situ and on ...

Nov. 30, 2009

Chlorine Theory & Measurement

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.

Case study - Chlorinated groundwater treatment

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.

Chlorine Safety and Prevention: How to Protect Yourself from Chlorine Leaks

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

Chlorine gas protection - Case Study

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

Case study - Chlorinated groundwater treatment

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.

Peracetic Acid – is it an Environmentally Friendly Alternative to Chlorine?

ABSTRACT Concerns with chlorine disinfection have led to investigation of alternative disinfectants for use in the environmental arena. Are there environmentally safe alternatives to chlorine? Is peracetic acid one among these? Peracetic acid is one among several chemicals that have been touted as a replacement in recent years. Peracetic acid is very effective in killing bacteria, ...

Oct. 13, 2007

By Water Environment Federation (WEF)

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 ...

Oct. 20, 2015

By AquaGas Pty Ltd

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 ...

Apr. 4, 2013

By IWA Publishing

Direct Hydrogen Addition for the In-situ Biodegradation of Chlorinated Solvents

AbstractAs a result of their widespread use as solvents, degreasers, and dry cleaning agents, chlorinated aliphatic hydrocarbons (PCE, TCE, DCE, etc.) represent one of the most common and most persistent groups of contaminants found in groundwater. Characteristically, these compounds exist in the form of DNAPLs in the subsurface making efforts ...

Jan. 1, 1997

Direct Hydrogen Addition for the In-situ Biodegradation of Chlorinated Solvents

As a result of their widespread use as solvents, degreasers, and dry cleaning agents, chlorinated aliphatic hydrocarbons (PCE, TCE, DCE, etc.) represent one of the most common and most persistent groups of contaminants found in groundwater. Characteristically, these compounds exist in the form of DNAPLs in the subsurface making efforts at remediation particularly difficult. In-situ bioremediation ...

Jan. 1, 1997

Hydrogen Fact Sheet Subsurface Hydrogen Injection For the In-situ Bioremediation of Chlorinated Solvents

In-situ bioremediation via direct hydrogen addition has the potential to become a simple and low-cost treatment approach for sites contaminated with chlorinated solvent compounds (PCE, TCE, etc.). Based on the results of recent research, the role of hydrogen as an electron donor is now widely recognized as the key factor governing the dechlorination of chlorinated compounds (Holliger et al., ...

Jan. 1, 1997

How to keep drinking water safe from `little animals`

Disease causing agents can be broken up into three groups, Bacteria, Viruses and Protozoa. Cryptosporidium belongs to the third group, Protozoa. The word protozoa comes from the Greek word for ‘little animal’.One aspect of Cryptosporidium which makes it problematic from a water treatment perspective is that at one stage in its life cycle it produces small spore like bodies known as cysts. These ...

Mar. 3, 2008

By O2 Environmental Inc.

Fact Sheet: Subsurface Hydrogen Injection for the In-situ Bioremediation of Chlorinated Solvents

AbstractIn-situ bioremediation via direct hydrogen addition has the potential to become a simple and low-cost treatment approach for sites contaminated with chlorinated solvent compounds (PCE, TCE, etc.). Based on the results of recent research, the role of hydrogen as an electron donor is now widely recognized as the key factor governing the ...

Jan. 1, 1997

Filtration & Chlorination Systems: Household Water Treatment Options in Developing Countries

Five household water treatment and safe storage (HWTS) options – chlorination, solar disinfection, ceramic filtration, sand filtration, and flocculation/disinfection – are proven to improve microbiological quality and prevent diarrheal disease in developing countries. Other options – such as filtration & ...

Apr. 6, 2012

By IWA Publishing

Better safe than sorry: using the precautionary principle to prevent harm

Concerned about the increase in disease, declining natural resources and the rate at which some species are becoming extinct, a group of environmentalists, farmers, industry leaders and health care professionals explored solutions. In 1998, they gathered at ...

Feb. 28, 2005

By Citizens League for Environmental Action Now (CLEAN)

The Daytona Beach Ralph Brennan Water Treatment Plant Finds On-Site Generation to be a Safe and Economical Solution for Water Disinfection

ABSTRACT For many years the use of gaseous chlorine at water treatment plants has been an effective and widely used method of disinfection. It is still the most commonly used disinfectant treatment in water treatment plants in the United States. In recent years however, the safety of chlorine gas has come under increased scrutiny. The side effects to chlorine gas exposure at low levels ...

Oct. 13, 2007

By Water Environment Federation (WEF)

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