Industrial Aluminum Profile Surface Wastewater Treatment Technology-Huachang Aluminum-Aluminum Profiles Supplier

When the industrial aluminum profile is processed on the surface, there will be a lot of wastewater, and there are certain harmful substances in the wastewater for discharge. If it is not treated, it will have a certain impact on the environment. What about technology? Let's take a closer look.

1. The source of the wastewater on the surface of industrial aluminum profiles and the wastewater of the surface treatment of the type of aluminum profiles has previously treated oil -removing acid and post -acid water washing water, alkaline water washing water after alkali corrosion Acid water washing water, after coloring Ni2, SN2, acidic water washing water, electro -swimming paint ion exchange device generated, waste acids, waste alkali and a small amount of electro -swimming paint was used. The wastewater is acidic after mixing, contains cation with Al3, Ni2, SN2, SN4, NA, CR3and other cations, as well as the P anses such as S042-, F-, N03-, CL-, AL02-, AC- Organic substances such as resin. Waste liquids have waste sulfuric acid produced in abandon, waste nitric acid, and waste sulfuric acid produced by oxidized, waste liquid generated by coloring, waste acrylic liquid produced by electrophoresis paint, and sealing holes containing Ni2, F and other waste liquids.

2. The method of reducing wastewater and waste liquid discharge of industrial aluminum profiles to reduce wastewater and waste liquids in industrial aluminum profiles to reduce water control time and control the angle of the installation to reduce the amount of groove liquid. Reduce water consumption. Washing water after acid erosion and dehydration is used for water washing after alkaline corrosion. After oxidation, water washed water for acid erosion and dehydration.

In addition, in order to reduce or avoid discharge of wastewater and waste groove liquids, the production line should be designed and used to use various recycling devices, such as acid erosion recycling device, alkaline erosion recycling device, anode oxide removal device, color solution RO recycling device, electrophoretic paint RO The recycling device can reduce the amount of wastewater and waste liquid emissions to the maximum, and at the same time, the use of the amount of wastewater and the amount of waste liquid will be reduced.

3. The principle and method of the surface treatment of wastewater treatment of aluminum profiles of industrial aluminum profiles are mainly pH wastewater generated by the surface treatment of aluminum profiles. Wastewater is generally acidic, with a neutralized alkali, and the pH is adjusted to about 7-8.5. At the same time, cation AL3, Ni2, SN2, CR3, etc. all formed hydroxide precipitation. After the neutral and precipitated wastewater pumps are used into the condensation slot, and the dissolved polyamide flocculant and wastewater are used to condense with a quantitative pump. The law, centrifugal precipitation method, etc. The author believes that the use of centrifugal precipitation method is relatively stable. After precipitation, the clearing fluid enters the discharge pool after overflowing from the upper stream of the liquid. The wastewater treated with the above industrial aluminum profiles can be discharged. If the wastewater is used, the wastewater can be used to enter the R0 device for treatment at this time to remove the excess yin and yang ions and organic matter. At this time, the water pH value It may be low, and you can reached the reincarnation standard after adjusting the yin and yang ion exchange device. The sludge generated by precipitated is regularly discharged into the sludge pool, and it becomes industrial waste residue after treatment through the plate -type cake machine or with dehydration machine. This article comes from Baidu Library