How to Deal with Aluminum -based Surface Wastewater? -Ruminum Profiles Supplier

1. The source of the source and type of aluminum surface wastewater and the type of key analysis of the surface treatment generated by aluminum profiles include pre -treated skipping skids and neutralized pickled water, alkaline -corroded alkaline washing water, acid erosion after acid erosion, oxidized after oxidation, oxidized Sour water, painted paint wastewater after coloring. Mixed wastewater is acidic and contains organic substances, such as surfactants and acrylic resin. The waste liquid includes waste sulfuric acid produced by dehydration and dismissal, waste nitric acid and waste sulfuric acid produced by oxidized, waste liquid generated by coloring, acrylic waste liquid generated by electro -swimming paint, and Ni 2 and F generated by sealing waste. Waste liquid. 2. Methods to reduce wastewater and waste liquid emissions to reduce wastewater and waste liquids include reasonable control of water control time and filling angle to reduce the amount of liquid carried in the water tank, and try to use two and three -level reverse flow flush to reduce water to reduce water. Consumption. The washing water after acid corrosion and abandoned was used for washing after alkaline corrosion. The oxidized washing water was used for acid corrosion and dehydration washing.

In addition, in order to reduce or avoid the discharge of wastewater and waste liquid tanks, the production line should be designed and used by various recycling equipment, such as acid corrosion recycling equipment, alkali corrosion recycling equipment, anode aluminum removal equipment, color solution RO recycling equipment, electro -swimming paint RO RO Recycling equipment, using these recycling equipment can minimize the discharge of wastewater and waste liquid, and can also minimize production costs. 3. The principles and methods for the treatment of wastewater treatment on the surface of aluminum profiles are mainly acid-alkali wastewater generated by the surface treatment of aluminum profile. Among them, it contains a small amount of harmful anion and cation, such as NI2, SN2 and F-. The processing method is pH, neutralization. Wastewater is usually acidic, so it must be neutralized by adding alkali. The pH value should be adjusted to 7-8.5. At the same time, cations Al3, NI2, SN2, and CR3 all form hydroxide precipitation during neutralization. Use the pump to pump the wastewater after the precipitated wastewater into the concrete tank. At the same time, the solubble polyamide flocculant and wastewater are used to use a quantitative pump to make the concrete wastewater into the sedimentation tank. Settling method includes the sedimentation and air floating of the tilt plate. Xiaobian believes that centrifugal sinking method is more stable. After the precipitation, the clear liquid overflows from the upper part, and enters the drainage tank or the back treatment tank. After the above treatment, wastewater can reach standard emissions.

If the wastewater is required, the wastewater can be treated through the reverse osmosis equipment after rough filtering to remove excess anion, cations and organic matter.

At this time, the pH value of the water may be low, and it can meet the reuse standards after adjustment through the anion exchange and cation exchange device. The sludge generated by the precipitation is regularly discharged into the sludge pool. After the tablet filter or belt dehydration machine is treated, it becomes industrial waste residue and sent to the industrial waste residue treatment plant. The treatment of surface wastewater and waste liquids mainly uses reverse flow washing. In the first stage, two -dimensional and three -stage treatment can be used, which can effectively reduce water consumption. The whole process is more complicated. The zero discharge process of surface wastewater is realized, and the treatment of the surface wastewater and waste liquid reflects the social responsibility of the enterprise. The damage caused by surface wastewater to soil and water is irreversible. The state also strictly fined such wastewater companies that discharged such wastewater in private.