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Why chlorine is added to water treatment?

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【Summary】In the effluent stage of tap water and sewage treatment plants, chlorination disinfection is widely used to kill bacteria and viruses in the water. In the treatment of industrial circulating cooling water, chlorine is also used to sterilize and remove algae. In the process of cooling water circulation, due to the evaporation of part of the water, the nutrients in the water are concentrated, and bacteria and other microorganisms will multiply in large quantities and easily form slime dirt. Too much slime dirt will lead to pipe blockage and corrosion.

Why chlorine is added to water treatment?

【Summary】In the effluent stage of tap water and sewage treatment plants, chlorination disinfection is widely used to kill bacteria and viruses in the water.

In the treatment of industrial circulating cooling water, chlorine is also used to sterilize and remove algae. In the process of cooling water circulation, due to the evaporation of part of the water, the nutrients in the water are concentrated, and bacteria and other microorganisms will multiply in large quantities and easily form slime dirt. Too much slime dirt will lead to pipe blockage and corrosion.

  • Categroy:News
  • Author:
  • Origin:
  • Release Time:2020-09-25 15:24
  • Views:
Information

In the effluent stage of tap water and sewage treatment plants, chlorination disinfection is widely used to kill bacteria and viruses in the water.

In the treatment of industrial circulating cooling water, chlorine is also used to sterilize and remove algae. In the process of cooling water circulation, due to the evaporation of part of the water, the nutrients in the water are concentrated, and bacteria and other microorganisms will multiply in large quantities and easily form slime dirt. Too much slime dirt will lead to pipe blockage and corrosion.

Chlorination usually involves injecting chlorine into water to kill bacteria and other microorganisms, usually in bottled chlorine.

Free chlorine - Chlorine gas produces HClO and ClO- in water, and the sum of HClO and ClO- is called "free chlorine".

Among them, free chlorine has a strong killing effect on bacteria and other microorganisms, and is an effective anti-toxin component in free chlorine, so HClO is also called "effective free chlorine".

Compound chlorine -- before free chlorine has bactericidal effect, due to the water dissolved in ammonium ions, organic various impurities, these impurities will first react with free chlorine, the consumption of a part of free chlorine.

For example, free chlorine rapidly reacts with ammonium ions in solution to form monochloramine and dichloramine.

Over a longer period of time, free chlorine also reacts with organic compounds, such as proteins and amino acids, to form various organochlorine compounds.

Chloramines and organochlorines together are called combined chlorines.

Total chlorine -- combined chlorine plus free chlorine is the total amount of chlorine in the solution, called total chlorine.

Only free chlorine is an effective disinfectant in these substances, and combined chlorine has little ability to kill viruses.

Only after meeting the above consumption of chlorine needs, there will be excess free chlorine to kill bacteria.

Chlorination amount -- The amount of chlorine added during chlorination disinfection is called chlorination amount. Chlorination amount should include the required amount of chlorine and the remaining amount of chlorine.

The amount of chlorine required refers to the amount of chlorine needed to kill bacteria and oxidize organic and reducing substances.

Residual chlorine - refers to the amount of chlorine remaining in water to inhibit the re-reproduction of residual bacteria, known as residual chlorine or residual chlorine.

Some people call free chlorine residual chlorine, which is not accurate, killing bacteria after the remaining free chlorine is residual chlorine.

In order to maintain the bactericidal effect, the residual chlorine should always be kept at 0.5 ~ 1mg/L in the discharged water and at the end of the water supply network at 0.05 ~ 0.1mg/L.

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Unveiling the Multi-Faceted Applications of Calcium Hypochlorite
Unveiling the Multi-Faceted Applications of Calcium Hypochlorite
In today's rapidly evolving world, the importance of effective disinfection and sanitation has never been more prominent. Among the plethora of disinfectants available, calcium hypochlorite stands out as a powerful and versatile solution. This chemical compound, commonly used as a disinfectant, Pool Cleaner, and even in disaster relief efforts, has earned its place as a crucial agent in various industries. In this article, we'll delve into the myriad uses of calcium hypochlorite, shedding light on its significance in today's health and safety landscape. 1. Pool Maintenance: Keeping Recreational Spaces Safe and Clean One of the most common applications of calcium hypochlorite is in swimming pool maintenance. Its ability to effectively kill harmful bacteria, viruses, and algae makes it an essential component of pool water treatment. Calcium hypochlorite releases chlorine into the water, ensuring that pools remain safe and inviting for swimmers. Its high chlorine content makes it a cost-effective choice for commercial and residential pool owners alike, helping to maintain crystal-clear water. 2. Water Purification: Safeguarding Communities In regions where access to clean drinking water is a challenge, calcium hypochlorite plays a pivotal role in water purification. Municipal water treatment facilities use it to disinfect drinking water, making it safe for consumption. By eradicating harmful microorganisms and pathogens, calcium hypochlorite contributes to improved public health, reducing the risk of waterborne diseases. 3. Disaster Relief: A Rapid Response Solution During natural disasters such as hurricanes, earthquakes, or floods, access to clean water can become severely limited. Calcium hypochlorite tablets are used to provide emergency water disinfection. A small tablet can purify a significant amount of water, making it a lifesaver in situations where clean water sources are scarce. Non-governmental organizations and disaster relief teams rely on calcium hypochlorite to ensure that affected communities have access to safe drinking water in times of crisis. 4. Medical Facilities: Maintaining Sterile Environments In healthcare settings, maintaining a sterile environment is paramount. Calcium hypochlorite is used to disinfect surfaces, equipment, and even medical waste. Its broad-spectrum disinfecting properties help healthcare professionals reduce the risk of infections, safeguarding both patients and staff. 5. Food Industry: Ensuring Safe Consumption The food industry relies on calcium hypochlorite for disinfection and sanitation purposes. From sanitizing food processing equipment to disinfecting fruits and vegetables, this compound helps ensure that the food we consume is safe and free from harmful pathogens. It plays a vital role in reducing foodborne illnesses and ensuring food safety standards are met. 6. Sanitization in Education: Protecting Students and Staff Schools and educational institutions are increasingly turning to calcium hypochlorite for sanitation. It helps prevent the spread of contagious diseases in crowded environments. By regularly disinfecting classrooms, hallways, and common areas, it contributes to a safer learning environment for students and educators. As we navigate the challenges of the modern world, Calcium Hypochlorite emerges as a versatile and indispensable tool in safeguarding public health, ensuring clean water access, and maintaining sanitary conditions across various industries. Its role in pool maintenance, disaster relief, healthcare, and more showcases its adaptability and efficacy. Calcium hypochlorite continues to be a crucial ally in our ongoing battle against diseases and contaminants, promising a safer and healthier future for all. To reap the full benefits of this remarkable chemical compound, it’s essential to handle it with care and follow recommended safety guidelines.
See more information
In today's rapidly evolving world, the importance of effective disinfection and sanitation has never been more prominent. Among the plethora of disinfectants available, calcium hypochlorite stands out as a powerful and versatile solution. This chemical compound, commonly used as a disinfectant, Pool Cleaner, and even in disaster relief efforts, has earned its place as a crucial agent in various industries. In this article, we'll delve into the myriad uses of calcium hypochlorite, shedding light on its significance in today's health and safety landscape. 1. Pool Maintenance: Keeping Recreational Spaces Safe and Clean One of the most common applications of calcium hypochlorite is in swimming pool maintenance. Its ability to effectively kill harmful bacteria, viruses, and algae makes it an essential component of pool water treatment. Calcium hypochlorite releases chlorine into the water, ensuring that pools remain safe and inviting for swimmers. Its high chlorine content makes it a cost-effective choice for commercial and residential pool owners alike, helping to maintain crystal-clear water. 2. Water Purification: Safeguarding Communities In regions where access to clean drinking water is a challenge, calcium hypochlorite plays a pivotal role in water purification. Municipal water treatment facilities use it to disinfect drinking water, making it safe for consumption. By eradicating harmful microorganisms and pathogens, calcium hypochlorite contributes to improved public health, reducing the risk of waterborne diseases. 3. Disaster Relief: A Rapid Response Solution During natural disasters such as hurricanes, earthquakes, or floods, access to clean water can become severely limited. Calcium hypochlorite tablets are used to provide emergency water disinfection. A small tablet can purify a significant amount of water, making it a lifesaver in situations where clean water sources are scarce. Non-governmental organizations and disaster relief teams rely on calcium hypochlorite to ensure that affected communities have access to safe drinking water in times of crisis. 4. Medical Facilities: Maintaining Sterile Environments In healthcare settings, maintaining a sterile environment is paramount. Calcium hypochlorite is used to disinfect surfaces, equipment, and even medical waste. Its broad-spectrum disinfecting properties help healthcare professionals reduce the risk of infections, safeguarding both patients and staff. 5. Food Industry: Ensuring Safe Consumption The food industry relies on calcium hypochlorite for disinfection and sanitation purposes. From sanitizing food processing equipment to disinfecting fruits and vegetables, this compound helps ensure that the food we consume is safe and free from harmful pathogens. It plays a vital role in reducing foodborne illnesses and ensuring food safety standards are met. 6. Sanitization in Education: Protecting Students and Staff Schools and educational institutions are increasingly turning to calcium hypochlorite for sanitation. It helps prevent the spread of contagious diseases in crowded environments. By regularly disinfecting classrooms, hallways, and common areas, it contributes to a safer learning environment for students and educators. As we navigate the challenges of the modern world, Calcium Hypochlorite emerges as a versatile and indispensable tool in safeguarding public health, ensuring clean water access, and maintaining sanitary conditions across various industries. Its role in pool maintenance, disaster relief, healthcare, and more showcases its adaptability and efficacy. Calcium hypochlorite continues to be a crucial ally in our ongoing battle against diseases and contaminants, promising a safer and healthier future for all. To reap the full benefits of this remarkable chemical compound, it’s essential to handle it with care and follow recommended safety guidelines.
Why Calcium Hypochlorite is a Preferred Method of Swimming Pool Sanitation
Why Calcium Hypochlorite is a Preferred Method of Swimming Pool Sanitation
Calcium hypochlorite, better known by its nickname of cal hypo, is one type of product commonly used to treat swimming pool water. It comes in various forms, such as granular or in tablets that look like hockey pucks. Because of its solid, concentrated form and ability to kill any number of pathogens while keeping water clean and sparkling, it is considered the most ideal product to choose when it comes to sanitizing swimming pools. Cal hypo’s solid form makes it is easy to transport and to store. It can be purchased in small bags that are easy for any homeowner to handle and use. It is inexpensive, fast-acting, and very strong. If it’s added correctly, it will not damage the pool or equipment. It is also used to shock pools, which means giving the pool a high dose of chlorine to quickly eliminate any build-up of combined chlorine and extra germs that may have manifested from a high bather load or rain storm. Cal hypo does not contain cyanuric acid, which is a chlorine stabilizer, so cal hypo’s ability to kill germs quickly is not affected by overstabilization that can slow it down. Too much cyanuric acid can also lead to algae blooms, because the chlorine can’t kill the algae as fast. On the flip side, cal hypo’s lack of cyanuric acid also means chlorine is burned off quickly in the sun, which cyanuric acid’s job is to protect from happening. However, cyanuric acid may be added separately to the pool to keep this from occurring. “It’s really hard to control your chlorine concentration with an ORP controller in the presence of cyanuric acid,” says Ellen Meyer, product safety and government affairs manager at Solenis. “It really helps not to have any cyanuric acid present.”   There are other methods of treating a pool, such as trichlor-s-triazinetrione, or trichlor for short. Trichlor is another popular product and is very similar to cal hypo in that it comes in tablets, is inexpensive, easy to transport, and has a high amount of chlorine. However, unlike cal hypo, it does have cyanuric acid to protect the chlorine from being worn away by the sun. Each tablet typically has about 50% cyanuric acid. Cyanuric acid doesn’t dissipate over time like chlorine, so after a while, your pool can end up with a high cyanuric acid level, which can only be lowered by partial draining and refilling. Trichlor also has a low pH, which can cause pipes to corrode. “Typically a lot of pool builders will tell you don’t ever put a trichlor tab in your skimmer because you can have damage to your downstream equipment,” Meyer says. “Cal hypo has a high pH, so even though you have a high concentration of chlorine, it doesn't corrode your heater or any of your other equipment if you put it in either a skimmer or feeder.” Sodium hypochlorite, also known as liquid bleach is another option, but it is only sold as a liquid which makes transporting difficult due to the weight. It is also extremely corrosive, so it must be handled with much more care than its solid counterparts. In addition, liquid bleach loses much of its strength in storage and at high temperatures. Cal hypo contributes calcium to the pool which can create scale in the presence of high pH and high carbonate concentrations. However, Meyer points out, scale can be removed with an acid wash or anti-scale agent. Unlike corrosion caused by trichlor, scale can be removed. The corrosion caused by the low pH of trichlor cannot be reversed.. “Once that copper's off of the heat exchanger, it's gone,” Meyer says. “You can't reverse that corrosion process. But scale, you can reverse it, you can clean the scale off.” Though there’s no one “perfect” pool solution out there, cal hypo tends to be the better option because of its ease of use, reliability, and lack of any real damage to equipment. 
See more information
Calcium hypochlorite, better known by its nickname of cal hypo, is one type of product commonly used to treat swimming pool water. It comes in various forms, such as granular or in tablets that look like hockey pucks. Because of its solid, concentrated form and ability to kill any number of pathogens while keeping water clean and sparkling, it is considered the most ideal product to choose when it comes to sanitizing swimming pools. Cal hypo’s solid form makes it is easy to transport and to store. It can be purchased in small bags that are easy for any homeowner to handle and use. It is inexpensive, fast-acting, and very strong. If it’s added correctly, it will not damage the pool or equipment. It is also used to shock pools, which means giving the pool a high dose of chlorine to quickly eliminate any build-up of combined chlorine and extra germs that may have manifested from a high bather load or rain storm. Cal hypo does not contain cyanuric acid, which is a chlorine stabilizer, so cal hypo’s ability to kill germs quickly is not affected by overstabilization that can slow it down. Too much cyanuric acid can also lead to algae blooms, because the chlorine can’t kill the algae as fast. On the flip side, cal hypo’s lack of cyanuric acid also means chlorine is burned off quickly in the sun, which cyanuric acid’s job is to protect from happening. However, cyanuric acid may be added separately to the pool to keep this from occurring. “It’s really hard to control your chlorine concentration with an ORP controller in the presence of cyanuric acid,” says Ellen Meyer, product safety and government affairs manager at Solenis. “It really helps not to have any cyanuric acid present.”   There are other methods of treating a pool, such as trichlor-s-triazinetrione, or trichlor for short. Trichlor is another popular product and is very similar to cal hypo in that it comes in tablets, is inexpensive, easy to transport, and has a high amount of chlorine. However, unlike cal hypo, it does have cyanuric acid to protect the chlorine from being worn away by the sun. Each tablet typically has about 50% cyanuric acid. Cyanuric acid doesn’t dissipate over time like chlorine, so after a while, your pool can end up with a high cyanuric acid level, which can only be lowered by partial draining and refilling. Trichlor also has a low pH, which can cause pipes to corrode. “Typically a lot of pool builders will tell you don’t ever put a trichlor tab in your skimmer because you can have damage to your downstream equipment,” Meyer says. “Cal hypo has a high pH, so even though you have a high concentration of chlorine, it doesn't corrode your heater or any of your other equipment if you put it in either a skimmer or feeder.” Sodium hypochlorite, also known as liquid bleach is another option, but it is only sold as a liquid which makes transporting difficult due to the weight. It is also extremely corrosive, so it must be handled with much more care than its solid counterparts. In addition, liquid bleach loses much of its strength in storage and at high temperatures. Cal hypo contributes calcium to the pool which can create scale in the presence of high pH and high carbonate concentrations. However, Meyer points out, scale can be removed with an acid wash or anti-scale agent. Unlike corrosion caused by trichlor, scale can be removed. The corrosion caused by the low pH of trichlor cannot be reversed.. “Once that copper's off of the heat exchanger, it's gone,” Meyer says. “You can't reverse that corrosion process. But scale, you can reverse it, you can clean the scale off.” Though there’s no one “perfect” pool solution out there, cal hypo tends to be the better option because of its ease of use, reliability, and lack of any real damage to equipment. 
Calcium hypochlorite market demand is expanding
Calcium hypochlorite market demand is expanding
Time of issue : 2024-03-12 10:03:33
Market Highlights The Global Calcium Hypochlorite Market is accounted to register a CAGR of 1.67% during the forecast period and is estimated to reach USD 5.9 Billion by 2032. The Calcium Hypochlorite Market refers to the global market for a chemical compound with the formula Ca(ClO)2. Calcium hypochlorite is commonly used as a solid form of chlorine for water treatment and disinfection purposes. It is a white, granular or powdered substance with strong oxidizing properties, making it effective in killing bacteria, viruses, and algae, and in oxidizing organic and inorganic substances present in water. One of the primary drivers of the Calcium Hypochlorite Market is its vital role in ensuring safe and clean water supplies. The compound is extensively used for water disinfection in various applications, such as municipal water treatment plants, swimming pools, industrial water treatment, and wastewater treatment facilities. Calcium hypochlorite effectively eliminates harmful microorganisms and contaminants from water, helping to prevent waterborne diseases and ensuring the safety of drinking water and recreational water sources. Segment Analysis The Global Calcium Hypochlorite Market has been segmented based on Type, and Application. Based on Type, the market is segmented into Powder, Pellet, Granular. the powder category holds the leading position in the market for calcium hypochlorite due to its numerous advantages over other forms. One of its key benefits is its ease of transportation and storage, as it can be readily packed and sealed in drums lined with plastic or rubber. As a result of these advantages, the powder form of calcium hypochlorite is expected to maintain its top position in the market throughout the forecast period. Based on Application, the Market has been segmented into Water Treatment, House Cleaner and Detergents, Agrochemical, pulp & paper industry, and Food & Beverages. The Water Treatment category emerged as the largest revenue contributor in 2022 and is expected to maintain this leading position throughout the forecast period. The substantial market share in water treatment results from the increasing adoption of calcium hypochlorite in water treatment facilities, where its powerful oxidizing properties effectively disinfect and purify water sources. Regional Analysis The Global Calcium Hypochlorite Market, based on region, has been divided into North America, Europe, Asia-Pacific, and Rest of the World. North America consists of US and Canada. The Europe Global Calcium Hypochlorite Market comprises Germany, France, the UK, Italy, Spain, and the rest of Europe. The Global Calcium Hypochlorite Market in Asia-Pacific has been segmented into China, India, Japan, Australia, South Korea, and the rest of Asia-Pacific. The Rest of the World's Global Calcium Hypochlorite Market comprises of Middle East, Africa, and Latin America. The Asia-Pacific region is set to dominate the Calcium Hypochlorite market, primarily driven by the increasing demand from various end-use sectors, including water treatment, household cleansers, and agrochemicals. The market's growth in the Asia-Pacific region is further propelled by robust economic growth and a favorable business environment, which have led to significant investments in the construction industry, particularly in countries like China and India. The North America Calcium Hypochlorite Market is projected to experience the fastest Compound Annual Growth Rate (CAGR) from 2023 to 2032. This growth is driven by the increasing number of homes in North America equipped with swimming pools, which boosts the demand for Calcium Hypochlorite as a key disinfectant for pool water treatment. In Europe, the Calcium Hypochlorite market holds the second-largest market share, with Western European nations such as Germany, France, the UK, Spain, and Italy dominating the market. The European market is witnessing rapid expansion, mainly due to increased product demand for household and disinfectant applications.
See more information
Market Highlights The Global Calcium Hypochlorite Market is accounted to register a CAGR of 1.67% during the forecast period and is estimated to reach USD 5.9 Billion by 2032. The Calcium Hypochlorite Market refers to the global market for a chemical compound with the formula Ca(ClO)2. Calcium hypochlorite is commonly used as a solid form of chlorine for water treatment and disinfection purposes. It is a white, granular or powdered substance with strong oxidizing properties, making it effective in killing bacteria, viruses, and algae, and in oxidizing organic and inorganic substances present in water. One of the primary drivers of the Calcium Hypochlorite Market is its vital role in ensuring safe and clean water supplies. The compound is extensively used for water disinfection in various applications, such as municipal water treatment plants, swimming pools, industrial water treatment, and wastewater treatment facilities. Calcium hypochlorite effectively eliminates harmful microorganisms and contaminants from water, helping to prevent waterborne diseases and ensuring the safety of drinking water and recreational water sources. Segment Analysis The Global Calcium Hypochlorite Market has been segmented based on Type, and Application. Based on Type, the market is segmented into Powder, Pellet, Granular. the powder category holds the leading position in the market for calcium hypochlorite due to its numerous advantages over other forms. One of its key benefits is its ease of transportation and storage, as it can be readily packed and sealed in drums lined with plastic or rubber. As a result of these advantages, the powder form of calcium hypochlorite is expected to maintain its top position in the market throughout the forecast period. Based on Application, the Market has been segmented into Water Treatment, House Cleaner and Detergents, Agrochemical, pulp & paper industry, and Food & Beverages. The Water Treatment category emerged as the largest revenue contributor in 2022 and is expected to maintain this leading position throughout the forecast period. The substantial market share in water treatment results from the increasing adoption of calcium hypochlorite in water treatment facilities, where its powerful oxidizing properties effectively disinfect and purify water sources. Regional Analysis The Global Calcium Hypochlorite Market, based on region, has been divided into North America, Europe, Asia-Pacific, and Rest of the World. North America consists of US and Canada. The Europe Global Calcium Hypochlorite Market comprises Germany, France, the UK, Italy, Spain, and the rest of Europe. The Global Calcium Hypochlorite Market in Asia-Pacific has been segmented into China, India, Japan, Australia, South Korea, and the rest of Asia-Pacific. The Rest of the World's Global Calcium Hypochlorite Market comprises of Middle East, Africa, and Latin America. The Asia-Pacific region is set to dominate the Calcium Hypochlorite market, primarily driven by the increasing demand from various end-use sectors, including water treatment, household cleansers, and agrochemicals. The market's growth in the Asia-Pacific region is further propelled by robust economic growth and a favorable business environment, which have led to significant investments in the construction industry, particularly in countries like China and India. The North America Calcium Hypochlorite Market is projected to experience the fastest Compound Annual Growth Rate (CAGR) from 2023 to 2032. This growth is driven by the increasing number of homes in North America equipped with swimming pools, which boosts the demand for Calcium Hypochlorite as a key disinfectant for pool water treatment. In Europe, the Calcium Hypochlorite market holds the second-largest market share, with Western European nations such as Germany, France, the UK, Spain, and Italy dominating the market. The European market is witnessing rapid expansion, mainly due to increased product demand for household and disinfectant applications.
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