Can the residual brine recovered from glyphosate wastewater be used as brine for chlor-alkali industry?
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This post was last edited by sunjl1981 on 2013-1-6 23:48 After we treated the glyphosate wastewater, the inorganic salt content in the residual liquid met the brine water quality requirements for the chlor-alkali industry, but it contained 0.1mg/L glyphosate and trace amounts of triethylamine. I don’t know if this type of wastewater can be directly used in the chlor-alkali industry! # hcbbs
:L:L Organic ammonium and salt water are not easy to handle. I think it can be used if there is good technology.
It's more difficult, but it's not easy for people upstairs to handle it to this extent. Can you tell me how to deal with it?
It cannot be used directly in the chlor-alkali industry because there are several problems: 1. The impact of the organic matter content in wastewater on electrolysis and what the concentration requirements are. 2. How to remove these organic matter. This post was last edited by yzhms on 2009-3-22 15:54 ]
Is there a problem with organic phosphorus? It seems to be difficult to deal with. Some manufacturers use recycled brine containing phosphorus, and the membrane is finished in a month. I haven't heard of any treatment plan yet. If the organic matter can be controlled at a certain level, it can still be used. Currently, many chlor-alkali plants are considering this aspect.
No, the organic matter content is high, it is difficult to handle, and it poses a great safety hazard.
It is recommended not to use it. 1. Although the ammonia content is within the control index, this industry is very sensitive to ammonia. Everyone tries to avoid bringing ammonia into the brine. Once the wastewater enters the electrolysis system without treatment, it may cause extremely serious consequences in subsequent processes. Please be careful. 2. All ion membranes are taboo against organic matter. If you use such brine, it is estimated that no supplier will provide you with performance guarantees.
We also use three-stage membrane treatment, and the first-stage membrane module will also fail quickly. However, we use synchronous dilution technology and other improvements to extend the operating cycle of the membrane to an objective time!
I guess it can be used, but it will have a great impact on the ion membrane. It is best to treat it before using it: lol
It’s hard to say how much impact 0.1 mg/L glyphosate and trace amounts of triethylamine have on chlor-alkali production. Anyway, the impact of amines is quite large, endangering production safety, and must be treated to a qualified level. If it can be used in production, it can achieve a circular economy to a certain extent.
It is definitely not possible to directly transport it to the chlor-alkali workshop and enter the electrolyzer for use. It must be processed. Generally, it is oxidized first to convert organic matter, and then filtered before being sent to the chlor-alkali workshop. Haha, of course it is not that simple to deal with. It requires a lot of processing details. This post was last edited by limingshuguang on 2009-3-25 19:46 ]
The amine must be removed, otherwise, the electrolysis process will generate nitrogen trichloride mixed in the chlorine gas, which can easily accumulate and explode.
Can the saline wastewater produced by other chemical industries be treated and reused in chlor-alkali production? The key depends on whether the ammonia nitrogen and organic matter indicators of the treated brine can meet the requirements for chlor-alkali brine. Our company is also studying it. The ideas studied are firstly theoretically feasible, secondly safe and stable, and thirdly economically feasible. The treatment of waste brine is related to the survival of various chemical products and process routes. Research on the comprehensive utilization of waste brine is extremely meaningful work. Let's work together. This post was last edited by limingshuguang on 2009-3-25 19:47 ]
Very good idea, if successful it will be a great contribution to the industry, continue to pay attention to ing
How do you adjust the pH? Glyphosate wastewater is negatively acidic
Obviously this cannot be directly used in any aspect of caustic soda production. If the processing is qualified, you can reuse it yourself, and you don’t have to bother sending it to the store.
It’s absolutely possible. It has been implemented. Are there any technical requirements?
Do we need to look at the recycling cost and the indicators after primary brine treatment?