Application of polyacrylamide in electroplating plants
With the development of industry and the progress of environmental protection, more and more attention has been paid to the treatment of electroplating plant wastewater. Heavy metal ion wastewater is very harmful to the environment and human health, and seriously pollutes the environment. In order to reduce its harm to the environment, it is necessary to treat heavy metal ion wastewater, which is an urgent problem to be solved.
Galvanizing plant wastewater is usually highly acidic, with complex water quality and difficult to control composition. Since the wastewater of electroplating plants contains many heavy metal ions, such as nickel, copper, zinc, chromium, cadmium, etc., wastewater treatment is more complicated. In order to effectively treat the wastewater, appropriate agents need to be used. Water Treatment Polyacrylamide, as a agent used in the wastewater treatment of electroplating plants, has played a huge role. So how do we do it and how effective is it?
1. Try to set up a relatively large water storage tank to ensure that the wastewater stays for a long enough time
In order to efficiently treat heavy metal ions in electroplating wastewater, a relatively large tank is first required so that the wastewater can stay in the tank sufficiently to increase the contact time between heavy metal ions and polyacrylamide and improve its adsorption effect. A long enough wastewater stay time is an important condition to ensure that the agent can fully play its role.
2.Selection of polyacrylamide model and determination of dosage
Before using polyacrylamide, the most suitable model of polyacrylamide should be selected according to the different wastewater characteristics to achieve the best effect. PAM model with large molecular weight does not mean good performance, and small molecular weight does not mean poor performance. At the same time, the dosage needs to be determined according to the actual situation to ensure a balance between treatment effect and economy.
3.The role of polyacrylamide
First, it can combine with heavy metal ions in wastewater, adsorb and remove heavy metal ions. Secondly, polyacrylamide can also improve the sedimentation performance of sewage, accelerate flocculation , and promote the rapid precipitation of sludge, and reducing suspended matter and turbidity in sewage.
4.Effect evaluation of polyacrylamide
In order to evaluate the treatment effect of Water Treatment Polyacrylamide, it is necessary to test and analyze the treated wastewater. The COD, BOD, pH value and heavy metal ion concentration of the wastewater can be tested separately.
Conclusion The use of polyacrylamide in electroplating plant wastewater treatment is a very effective method. By making full use of the adsorption and precipitation effects of polyacrylamide, heavy metal ions in wastewater can be effectively removed and the treatment effect of sewage can be improved.
