Treatment FAQ

why is chlorine dioxide used in water treatment

by Sydney Heidenreich Published 2 years ago Updated 1 year ago
image

Chlorine Dioxide Water Treatment Chlorine Dioxide is a highly potent disinfectant biocide commonly used in drinking water for Legionella control, process sanitisation, washing and other commercial applications.

Because chlorine dioxide is very reactive, it is able to kill bacteria and microorganisms in water. About 5% of large water-treatment facilities (serving more than 100,000 persons) in the United States use chlorine dioxide to treat drinking water.

Full Answer

What are the dangers of chlorine dioxide?

Chlorine dioxide is a disinfectant that kills bacteria, viruses, and fungi. But at high doses, it can damage red blood cells and the lining of the gastrointestinal (GI) tract.

How much chlorine is needed to disinfect water?

• 1mg/L: Routine disinfection for clean water • 2 mg/L: Routine disinfection for reasonable clean water • 5 mg/L: Disinfection for tanks and pipes. 3. Choose the chlorine disinfectant used and read the amount of chlorine disinfectant to be added where the chlorine concentration required corresponds to the volume of the tank.

Can chlorine in drinking water be harmful?

Using or drinking water with small amounts of chlorine does not cause harmful health effects and provides protection against waterborne disease outbreaks. Are there any health issues associated with chlorine?

Is it safe to drink chlorine dioxide?

The chlorine dioxide itself is non-toxic. it turns into regular table salt inside the body within 2 hours after consumption. [1] If an individual is healthy and has no pathogens, cancer cells, or other toxic cells in their body, chlorine dioxide will increase levels of hypochlorous acid in the body, which boosts the immune system.

image

What is chlorine dioxide used for in water-treatment?

According to EPA, chlorine dioxide is used “in public water-treatment facilities, to make water safe for drinking.” When chlorine dioxide is added to drinking water, it helps destroy bacteria, viruses and some types of parasites that can make people sick, such as Cryptosporidium parvum and Giardia lamblia.

Why is chlorine dioxide better than chlorine?

Higher yield & greater cost efficiencies - Chlorine Dioxide has a higher oxidation capacity, and a lower oxidation strength than most species of chlorine, making it at least 2.6 times more powerful per ppm according to WHO CT values.

Can you drink chlorine dioxide water?

Drinking any of these chlorine dioxide products can cause nausea, vomiting, diarrhea, and symptoms of severe dehydration.

What is the advantage of chlorine dioxide?

The advantages of chlorine dioxide are that it can be used at low concentrations to disinfect water, that it hardly reacts with organic matter, and that little disinfection byproducts are formed.

How does chlorine dioxide affect the body?

* Breathing Chlorine Dioxide can irritate the lungs causing coughing and/or shortness of breath. Higher exposures can cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency, with severe shortness of breath.

Is chlorine dioxide safer than chlorine?

This means that, mole for mole, ClO2 is 2.6 times more effective than chlorine. If equal, if not greater importance is the fact that chlorine dioxide will not react with many organic compounds, and as a result ClO2 does not produce environmentally dangerous chlorinated organics.

Is chlorine dioxide the same as bleach?

Chlorine dioxide is a gas. It is commonly used to disinfect drinking water. When used in very small quantities to disinfect water, it is safe and does not lead to health risks. But chlorine dioxide is a disinfectant similar to bleach.

What is the difference between chlorine and chlorine dioxide?

What is the Difference Between Chlorine and Chlorine Dioxide? Chlorine is a gaseous compound having the chemical formula Cl2. On the other hand, chlorine dioxide is an inorganic compound having the chemical formula ClO2. The melting and boiling points of chlorine gas are very low compared to chlorine dioxide.

Is chlorine dioxide the same as hydrogen peroxide?

Hydrogen peroxide is a strong oxidizer. In fact, it is more potent than chlorine (Cl2), chlorine dioxide (ClO2), and potassium permanganate (KMnO4). Also, through catalysis, hydrogen peroxide can be converted into hydroxyl radicals (OH).

How much chlorine dioxide is safe in drinking water?

0.8 milligrams per literThe EPA has set the maximum concentration in the drinking water at 0.8 milligrams per liter (mg/L) for chlorine dioxide and 1.0 mg/L for chlorite ion. The concentrations of chlorine dioxide and chlorite ion in your drinking water, however, may be lower or higher than these levels.

Is chlorine dioxide effective?

Chlorine Dioxide (ClO2) Chlorine dioxide is an extremely effective disinfectant, which rapidly kills bacteria, viruses, and Giardia, and is also effective against Cryptosporidium. ClO2 also improves taste and odor, destroys sulfides, cyanides, and phenols, controls algae, and neutralizes iron and manganese ions.

What is another name for chlorine dioxide?

Chlorine dioxideNamesIUPAC name Chlorine dioxideOther names Chlorine(IV) oxideIdentifiersCAS Number10049-04-450 more rows

What is chlorine dioxide?

It is a chemical compound in a gaseous form possessing antimicrobial properties, which is used to disinfect water, surfaces, and a host of other areas.

Why use chlorine dioxide solution in water treatment?

The water reaching our taps is removed of the most harmful pathogens in the water treatment plants using chlorine dioxide. When reaching such plants the water contains pollutants such as parasites, chemicals, bacteria, or even human waste.

Chlorine dioxide to safeguard cooling water systems

Cooling water systems are used as heat sink in industries to remove heat generated through industrial processes. If the heat is not removed the equipment used in industries can get damaged. However, the capacity of such heat sinks can suffer due to the formation of biofilm inside.

What is Chlorine Dioxide?

Chlorine Dioxide is a highly reactive compound – made from chlorine and oxygen molecules – that acts as a sterilant and disinfectant. It is not only EPA-approved but also FDA & USDA-approved for use in food processing plants to control bacteria. It has powerful properties that eliminate pathogens, such as listeria, salmonella, legionella, and more.

Chlorine Dioxide Generation System

In order to use chlorine dioxide to treat water systems, the compound is made by generators. A chlorine dioxide generation system will usually use two or three chemicals to produce the compound and then dissolve it into the water system being treated on demand.

Benefits of Chlorine Dioxide Water Treatment

Now that you understand the what and how of chlorine dioxide, let’s discuss the why. This is why chlorine dioxide should be used to treat water systems.

Achieve Pure Water With PureLine

PureLine has been in the chlorine dioxide industry for over 20 years. As such, our organization is well-versed in the treatment of water systems using chlorine dioxide, with a variety of effective solutions.

What is the three precursor method?

The three-precursor method uses 15 percent hydrochloric acid, bleach, and sodium chlorite. This method is commonly used in municipal drinking water plants for its effectiveness and safety. Here’s the key: instead of pumps, Orion uses an eductor and the venturi effect to create suction to draw the three precursors into the mixing chamber.

Is chlorine dioxide corrosive?

Myth #2: Chlorine Dioxide is Corrosive to frac iron. ClO2 is less corrosive than an equally effective amount of bleach or peroxide. ClO2 is used in many municipal applications instead of chlorine.

Is ClO2 corrosive?

ClO2 is less corrosive than many of the substances it treats —such as produced water containing high chloride levels, acid producing bacteria, sulfate-reducing bacteria, hydrogen sulfide, iron sulfide and more.

Can you use ClO2 in oil patch?

One method of making ClO2 should never be used in the oil patch. It uses “dry” sodium chlorite which is highly reactive.

Is chlorine dioxide safe for water treatment?

Here’s the truth about chlorine dioxide in water treatment. REALITY SHOW properly generated and dosed, chlorine dioxide is highly effective, fast acting and patently safe to people and frac iron, says Orion’s Gary Griesenbeck. Call Orion Water Solutions to learn more at 432-219-8100.

How does chlorine dioxide compare to chlorine?

So, how do chlorine and chlorine dioxide compare? When used at temperatures above 11°C, carbon dioxide is approximately ten times more soluble than chlorine. It is safer for the human body as it doesn’t form THMs. When used for water treatment, chlorine dioxide is also more effective at removing cryptosporidium and giardia, the two most common parasites in water that cause diarrhea.

What is the purpose of chlorine dioxide?

Without getting too complicated, the oxidizing agent in chlorine dioxide separates electrons from reactive molecules, effectively neutralizing bad tastes and odors when used for water treatment. As a strong bleaching agent, CIO2 works quickly to kill microorganisms, different bacteria, viruses, funguses, and spores.

What is chlorine dioxide used for?

There are many uses for chlorine dioxide. The primary use for chlorine dioxide is as a bleach in pulp and paper factories. However, it’s also used in ammonia plants, oil fields, the textile industry, and the electronic industry and is often applied to medical waste.

Does chlorine dioxide help with diarrhea?

When used for water treatment, chlorine dioxide is also more effective at removing cryptosporidium and giardia, the two most common parasites in water that cause diarrhea. Unfortunately, the results aren’t all good.

Is chlorine dioxide a compound?

Although it is usually used for bleaching, it’s also sometimes used for water treatment. In scientific terms, chlorine dioxide is a chemical compound: CIO 2. Although chlorine dioxide is a compound and chlorine is a naturally occurring element, chloride is often less harmful chlorine than when used appropriately.

Can chlorine dioxide cause chest pain?

According to the Australian government’s Department of Sustainability, Environment, Water, Population, and Communities, over-exposure to chlorine dioxide may irritate the nose and throat, coughing, chest pain, and eye sensitivity, especially around the light. Over-exposure to chlorine dioxide as gas can cause severe irritation to the lungs.

Is chlorine a carcinogen?

When reacting with organic matter present in water, chlorine can create chlor oform, which some argue is a carcinogen. Chlorine dioxide, however, cannot form chloroform and is known to be less irritating to the human body.

What is the best oxidant for zebra mussels?

The widespread invasion of zebra mussels has led to infestations that can completely clog water intake facilities and cause plant shutdowns. Chlorine dioxide is a proven oxidant for controlling population growth and contamination.

What is nitrification in a microbial system?

Nitrification is a microbial process by which reduced nitrogen compounds (primarily ammonia) are sequentially oxidized to nitrite and nitrate. To maintain compliance with DBP rules, chlorine dioxide, in extremely low dosages, is very effective in controlling episodes of nitrification.

Does chlorine dioxide preoxide control genotoxicity?

Addresses Genotoxicity. Even in low-bromide waters, using Chlorine Dioxide pre-oxidation provided the best control for overall genotoxicity. This is evidence that ClO 2 can increase the quality of any surface water treatment facility where precursors for DBPs are present.

Does chlorine dioxide oxidize water?

Potable water plants may experience unpleasant tastes and odors in finished waters. Chlorine dioxide is effective in oxidizing low-threshold odor compounds at typical treatment dosages and has the advantage of not chlorinating organics.

Is chlorine dioxide a disinfectant?

Chlorine dioxide is one of four EPA-approved disinfectants for drinking water with CT values second only to ozone in biocidal efficacy, but without the ozonation by-products, high capital expense, or residual limitations. It also offers water treatment entities a quick and simple solution to DBP regulatory compliance without costly plant upgrades.

Is chlorine dioxide a biocide?

Chlorine dioxide (ClO 2) is a versatile, broad-spectrum biocide with a 75-year track record of safe and effective drinking water treatment, industrial water treatment, and wastewater treatment.

What is chlorine dioxide used for?

As one of several oxides of chlorine, it is a potent and useful oxidizing agent used in water treatment and in bleaching. The use of chlorine dioxide for pre-disinfection and oxidation of drinking water has increased significantly over the past 20 years.

What is the chemical name for chlorine dioxide?

Chlorine Dioxide (ClO2); advantages and disadvantages in the water industry. Chlorine dioxide is a chemical compound with the formula ClO 2. This yellowish-green gas crystallizes as bright orange crystals at −59 °C. As one of several oxides of chlorine, it is a potent and useful oxidizing agent used in water treatment and in bleaching. ...

Can chlorine dioxide be produced with acid?

Chlorine dioxide production using chlorine gas or acid and hypochlorite generally requires an excess of chlorine or acid to maximize sodium chlorite conversion. If not controlled carefully, this can lead to untreated chlorite or excessive amounts of chlorine in the treated water.

Does chlorine dioxide produce halogenated disinfection?

Disinfection with chlorine dioxide produces lower levels of disinfection by products compared to chlorine gas and does not produce halogenated organic disinfection by-products at levels of concern.

Is sodium thiosulfate a competitive technology?

However, it is generally not considered a competitive technology for wastewater disinfection since it offers no significant technological advantage compared to chlorine, because additional salts (i.e., sodium thiosulfate) need to be added to the water. [WEF. Wastewater Disinfection, 1996].

What is the best disinfectant for drinking water?

Several major U.S. cities such as Philadelphia, San Francisco, Tampa Bay, and Washington, D.C. use chloramine to disinfect drinking water. Chloramine is recognized as a safe disinfectant and a good alternative to chlorine.

What is the process of adding chloramine to drinking water to disinfect it and kill germs?

Chloramination is the process of adding chloramine to drinking water to disinfect it and kill germs. It is sometimes used as an alternative to chlorination. Chloramines are a group of chemical compounds that contain chlorine and ammonia.

What is the EPA's water treatment system?

The U.S. Environmental Protection Agency (EPA) allows drinking water treatment plants to use chloramine and chlorine to disinfect drinking water. Water system pipes develop a layer of biofilm (slime) that makes killing germs more difficult.

What is the EPA's hotline for chloramine?

EPA provides guidance for local water authorities switching to chloramine on how to minimize lead and copper levels. If you are concerned about lead or copper levels in your household water, call EPA’s Safe Drinking Water Hotline at 800-426-4791 for testing information.

Where is chloramine used?

Chloramine has been used as a drinking water disinfectant in the United States in places like Cleveland, Ohio, Springfield, Illinois, and Lansing, Michigan since 1929. In 1998, an EPA survey estimated 68 million Americans were drinking water disinfected with chloramine.

What is the purpose of water in dialysis?

During dialysis, large amounts of water are used to clean waste products out of a patient’s blood. Dialysis centers must treat the water to remove all chemical disinfectants, including chlorine and chloramine, before the water can be used for dialysis.

What is the normal level of disinfection?

A normal level for drinking water disinfection can range from 1.0 to 4.0 mg/L. Your water company monitors water quality regularly to provide you with safe drinking water. Some people are more sensitive than others to chemicals and changes in their environment.

image
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9