Effluent Problems:
The wastewater contains wood dust particles, toluene, xylene, ethyl acetate, acetone, and exhibits high viscosity. The effluent is mainly yellow and colorless, transparent, with a pungent odor.
Solution:
We employed polymeric aluminum chloride (PAC) for decolorization and dispersion into smaller particles, and anionic polyacrylamide (PAM) for flocculation and precipitation, ensuring effective removal of contaminants.
Treatment Results:
In the furniture factory spray paint wastewater treatment process, which is common in the industry, oil-based paint waste is particularly sticky. The use of high-quality PAC and PAM is crucial for breaking down the stickiness and improving water clarity.
Polymeric aluminum chloride (PAC) breaks down the sticky nature of the wastewater, decomposes the paint mist in the spray booth, neutralizes the pH, and adsorbs impurities or suspended particles.
Polyacrylamide (PAM), especially anionic PAM, plays a key role in flocculation, coagulating the paint slag into larger pieces that float or settle, allowing for solid-liquid separation and rapid water clarification.
By introducing these chemicals, the water can be reused multiple times without frequent changes, significantly reducing water costs and improving wastewater treatment efficiency. Anionic PAM is particularly effective in handling oil-based paint waste, providing an environmentally friendly solution for manufacturers, while reducing water exchange and treatment costs.
Choosing the Right Chemicals:
When treating spray paint wastewater, it's essential to choose the right chemical agents based on the water quality, composition, pH value, and site-specific requirements. The treatment can be categorized into two types: oil-based wastewater and water-based paint wastewater, each with unique characteristics that require different chemical treatments.
Paint Mist Coagulants:
The use of PAC and PAM in spray paint wastewater treatment serves two main purposes:
Maintaining Circulating Water Function: Prevents the clogging of pipes and pumps by continually separating impurities in the water.
Environmental Protection Compliance: Ensures that the wastewater treatment process adheres to environmental standards, preventing pollution from sewage discharge.
