To process the aluminum profiles surface will be produced a lot wastewater. If the problem is not solved, it will pollute the environment.
Variety of the wastewater of the aluminum profiles surface
The wastewater includes the acid washing water, the acid washing water corroded by acid and affected by oxidation. The wastewater is acidic afer mixed, containing Al3+, Ni2+, Sn2+, Sn4+, Na+, Cr+ and other positive ions, and Ao42-, F-, No3-, C1-, A102-, Ac- and other negative ions, as well as surfactant and acrylic resin and other organic matter.
reduce wastewater and waste liquid
To reduce the water consumption, it should use the secondary and third level countercurrent rinsing. In order to reduce or avoid the discharge of the wastewater and the waste solution, the production line should design and use all kinds of the recycling equipment. The alkali erosion recycling device and the anodized aluminum removal equipment. The use of these recovery units can decrease the wastewater and waste emissions to the maximum .
The principles and methods of disposing of the wastewater
The wastewater produced by the treatment about the industrial aluminum profiles
surface mainly consists of the acid and alkali wastewater which contains Ni2+, Sn2+, F- and other a small amount of harmful zwitterions. If suppliers want to reuse the wastewater, the wastewater can be moved into the RO device after collated, to remove the excess yin and yang ions and organic matters. At this moment, the PH may be a little low. It can reach the reuse standard after adjusted through ion exchange equipment.