Looking for pyridine wastewater treatment technology
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How to deal with organic wastewater containing pyridine? This post was last edited by hesonchang214 on 2009-4-22 17:29 ]
You can consider using resin adsorption, but it will be more difficult if the salt content is too high, 13991330291
This is very simple, you can use distillation, get the pyridine-water azeotrope at the top of the tower, and the water at the bottom of the still reaches the standard. What is the water temperature, daily processing capacity, other impurities, effluent compliance requirements, pyridine recycling concentration requirements, etc. We will provide you with design plans, equipment, etc. If interested please contact: yqin@chembrane.com
If the salt content is too high, the salting out effect will be more obvious. It should be easier to remove pyridine. Why is it so difficult? If you have any difficulties in the specific operation, please advise!
What are the other components? It may restrict the processing technology! :victory: This post was last written by li * Edited by ch1968 on 2009-3-31 19:13 ]
If the salt content is too high, the ions will interfere with the resin's exchange of pyridine
The specific situation will be dealt with in detail, and the water parameters can only be provided to discuss the process. If there are no other effects and recycling is not considered, just use biological treatment. The premise is that certain pretreatment must be carried out to decompose pyridine into small molecular substances, such as micro-electrolysis, wet oxidation, etc. . .
This kind of wastewater is very difficult to treat, especially biochemical treatment is not suitable. Personally, I think it may be easier to use the incineration method. It can be incinerated directly or concentrated and incinerated. Of course, the flue gas must be treated.
As can be seen from the above replies, the processes or techniques used by people in different majors are very different. So, what principles should users adopt when making choices? I personally think: 1. Be safe, mature and reliable ； 2. Advanced technology, reflected in high economic benefits: Earn more or spend less ； 3. Obvious environmental benefits, economic benefits and social benefits ； 4. Energy saving and zero emission, that is, the political benefits are obvious.
This is indeed a difficult problem. What the poster may mean is that the pyridine type does not mean that there is no solution, but that the treatment results are unsatisfactory.
TP17000 COD 60000 DMF 13000 Toluene 800 Pyridine 1000