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Seeking expert help to solve the problem with water softeners

2009-02-19View Original

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    I would appreciate it if an expert could tell me what types of water softeners are used in wastewater treatment What are their functions, and what is the principle behind their ability to reduce heavy metal ions? The more detailed, the better! Additionally, I would like to ask whether sodium tripolyphosphate can be used as a chelating agent to soften water for wastewater treatment Please help me out, everyone. Thank you very much!
Reply #22009-02-19
Water softeners are generally high-efficiency chelating dispersants that possess a strong ability to complex metal ions such as calcium and magnesium; they are widely used in water treatment during textile dyeing and printing as well as in the washing of finished garments.
Reply #32009-02-19
Is LZ’s water softener meant to reduce calcium and magnesium ions in water? Its use in wastewater treatment is somewhat novel. I’ve heard that desalination is carried out after wastewater treatment before it is reused, in order to reduce conductivity and facilitate reuse. If treated wastewater is to be reused in industrial circulating water, the high ion concentration or high conductivity in the wastewater makes reuse difficult; desalination is necessary to meet the requirements for reuse. If it is a chelating agent, it cannot remove ions from water; rather, it increases the ion concentration and raises the solubility of ions in water. Therefore, to be precise, the substance added should react with the metal ions in water to form a precipitate, which can then be separated. If the goal is to soften water, the best approach is often to pass air through the water, or to adjust the pH value before passing air through it. The so-called softeners commonly used in boilers are soda ash, caustic soda, sodium phosphate salts, or calcium oxide, etc.
Reply #42009-02-19
Thank you to the guy on the third floor for his guidance. I’m just starting out in water treatment, and there are many things I don’t understand even when I ask questions; please forgive me, guys and girls. Since sodium tripolyphosphate is used in the washing industry to soften water, I assumed it could also be used for wastewater treatment. What I want to know is how to remove metal ions from water It’s best to use chemical methods, as the volume of waste to be treated is quite large. Moreover, it involves wastewater recycling in small factories, and the cost of expensive equipment is unaffordable. I hope everyone here can offer some guidance to me!
Reply #52009-02-24
Lime and soda ash are inexpensive water softeners; please go to http://bbs.hcbbs.com/viewthread.php?tid=248687 to ask the questions you have

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