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Jun 19th, 2013, 7:20am
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Wash water from Urea Formaldehyde resin plant (Read 477 times)
dlp_at
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Wash water from Urea Formaldehyde resin plant
Jun 15th, 2012, 11:40pm
 
Dear all,

Can I get help on how to settle the resin from the Wash water coming out of a a Urea Formaldehyde resin plant? What can be a good coagulant? Can Alum be used? After coagulation, settling and filtration, can we reuse this water for washing again?

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Re: Wash water from Urea Formaldehyde resin plant
Reply #1 - Jun 16th, 2012, 5:51am
 
You may have to conduct jar tests to see the compatibility of various coagulants or flocculants...as for reuses it depends in parameters desired
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Madan Iyengar
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Re: Wash water from Urea Formaldehyde resin plant
Reply #2 - Jun 17th, 2012, 6:21am
 
Thanks Madan.

I have seen that AOPs (Advanced Oxidation Processes) are required to make the effluent biologically treatable.

Does the following scheme, Acidification-Lime treatment-pH Correction-Flocculation by anionic Polyelectrolyte help?

Can I get help?
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Re: Wash water from Urea Formaldehyde resin plant
Reply #3 - Jun 17th, 2012, 6:29am
 


what is the raw inffluent pH..while i have no experience in treatment of such effluent all i can suggest is that check with a slight pH swing from acidic to alkaline or vice verse..add poly electrolyte for settlement..this should help..keep us posted here..
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Madan Iyengar
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Re: Wash water from Urea Formaldehyde resin plant
Reply #4 - Aug 10th, 2012, 4:31pm
 
Some of the waste water containing resins can themselves coagulate at certain ph. In my research, I watched the process.
I have a few questions. How much wastewater is produced at the plant? what chemicals are contained in the wastewater? what do you do with the hardened resin?
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