Liquid detergent processing production machines, what are the cause of the effluent water quality decline
by:Meibao2023-12-28
Now liquid detergent processing machine made by reverse osmosis + EDI ion exchange method to deal with water, EDI can purify the ionic substances in the water, making water treatment effect is better, liquid detergent handle making machine can sometimes be a drop in water quality situation, can't meet the requirements of use, then the liquid detergent handle making machine what is the cause of water quality decline?
Impact on EDI larger pollutants including hardness,
Calcium and magnesium)
, organic matter, suspended solids, intending to metal ions (
Iron, manganese)
, the oxidant (
Chlorine, ozone)
And carbon dioxide (
CO2)
And bacteria.
When designing RO/EDI system should get rid of these pollutants in the pretreatment of the EDI process.
Reduce the concentration of pollutants in pretreatment can improve the performance of EDI.
Chlorine and ozone oxidation of ion exchange resin and ion exchange membrane, cause EDI component functions.
Oxidation will make the TOC content increased significantly, pollution of ion exchange resin and membrane, slows the ion migration.
In addition, the oxidation makes resin is broken, and the components through the pressure loss will increase.
On the base of iron and other metal ions resin catalysis oxidation, permanently reduce the performance of the resin and membrane.
Hardness can cause fouling in reverse osmosis and EDI unit.
Scaling generally occurs on the surface of thick water chamber film, in the pH value is higher.
At this point, strong water into the difference between the water and the water pressure increasing, power flow is reduced.
Take the measures to avoid fouling components design.
However, that minimize the water hardness will be extended by cleaning cycle and improve the utilization rate of water EDI system.
Suspended matter and colloid can cause pollution and congestion of membrane and resin, resin clearance congestion, leading to the pressure loss of EDI components increase.
Organic matter were drawn to the resin and membrane surface, leading to the polluted and contaminated membrane and resin migration of ions reduce efficiency, resistance of the film will increase.
There are two kinds of carbon dioxide.
First of all, CO32 -
And Ca2 +, magnesium 2 + carbonate scale, the scale of the form associated with ion concentration and pH value of the feed water.
Second, because of the CO2 charge related to pH value, and it is RO and EDI to remove all depends on the charge, so its removal efficiency is changing.
Even lower CO2 can significantly reduce the resistivity of water products.
Reverse osmosis water treatment making machine making machine _ _ laundry detergent production laundry detergent washing powder production machine production factory house, the previous: laundry detergent use maintenance tips
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