Method for treating emulsion polymerization resin wastewater by ceramic membrane
An emulsion polymerization, ceramic membrane technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of difficult separation and biodegradation of emulsion polymer resin wastewater, and achieve good treatment effect, high purification degree, and wastewater. Simple processing effect
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Embodiment 1
[0036] A method for ceramic membrane treatment of emulsion polymer resin wastewater, comprising the following steps:
[0037] Step 1. Wastewater collection and storage:
[0038] The reactor washing wastewater generated during the production of polymerized acrylate emulsion is collected and stored in the sump.
[0039] Step 2, demulsification and flocculation:
[0040] Quantitatively pump the wastewater in the sump into the reaction tank, and automatically quantitatively pump into the sodium chloride solution with a solid content of 10% under the condition of stirring speed of 200rpm. The amount of sodium chloride is 0.5kg / ton of wastewater, and the reaction time is 5min; , under the condition of a stirring speed of 20rpm, automatically quantitatively pump 10% polyaluminum chloride mixed solution, the dosage of polyaluminum chloride is 0.5kg / ton of waste water, and the reaction time is 5min.
[0041] Step three, solid-liquid separation:
[0042] The wastewater from the react...
Embodiment 2
[0046] A method for ceramic membrane treatment of emulsion polymer resin wastewater, comprising the following steps:
[0047] Step 1. Wastewater collection and storage:
[0048] Collect the reactor washing wastewater generated during the resin emulsion production process and store it in the sump.
[0049] Step 2, demulsification and flocculation:
[0050] Quantitatively pump the wastewater in the sump into the reaction tank, and automatically quantitatively pump 10% aluminum nitrate solution under the condition of stirring speed of 100rpm. The dosage of aluminum nitrate is 5kg / ton of waste water, and the reaction time is 60min; Next, automatically quantitatively pump 10% polyaluminum sulfate mixed solution, the dosage of polyaluminum sulfate is 2kg / ton of waste water, and the reaction time is 30min.
[0051] Step three, solid-liquid separation:
[0052] The wastewater from the reaction tank flows into the sedimentation tank by itself, the residence time of the wastewater is...
Embodiment 3
[0056] A method for ceramic membrane treatment of emulsion polymer resin wastewater, comprising the following steps:
[0057] Step 1. Wastewater collection and storage:
[0058] The reactor washing wastewater generated during the production of polymerized acrylate emulsion is collected and stored in the sump.
[0059] Step 2, demulsification and flocculation:
[0060] Quantitatively pump the wastewater in the sump into the reaction tank. Under the condition of stirring speed of 5rpm, automatically quantitatively pump 3% SP demulsifier, the dosage of SP demulsifier is 2.5kg / ton of wastewater, and the reaction time is 30min; Under the condition of a stirring speed of 50rpm, 5% polyferric sulfate mixed solution is automatically quantitatively pumped, the dosage of polyferric sulfate is 5kg / ton of waste water, and the reaction time is 60min.
[0061] Step three, solid-liquid separation:
[0062]The wastewater from the reaction tank flows into the sedimentation tank by itself, t...
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