◆Process introduction

After the waste water flows through the diversion channel to filter the coarse substances through the grid, it enters the sump, and is lifted by the pump to the microfilter to recover the fibers and flows into the regulating tank by itself to settle the mud and sand debris. Then the pump is lifted to the air flotation machine. No. 2 medicine enters the state of coagulation reaction. During the coagulation reaction, the wastewater undergoes "demulsification" and electrically neutralizes and adsorbs to form small alum flowers. Add No. 2 medicine before the machine, relying on the flocculation of No. 2 medicine, and sweep the net , The alum flower turns into alum floc clusters. Under the floating action of the dense bubble group in the aeration reaction tube, the flocs and water solid and liquid phase are separated and enriched on the water surface. Under the propulsion of water, the scraper moves along the liquid surface. , Push the suspended solids into the sludge discharge pipeline, and send the scum to the collector by gravity to be discharged to the sludge drying tank for natural drying or pressure filtration, and the sludge after the drying pressure filtration is transported to landfill or mixing When coal is burned, clean water overflows from the lower regulating plate and enters the biochemical treatment module through the pipeline. The biochemically treated water is discharged or recycled up to the standard. In the process, a simple activated sludge method is used and the removal rate of suspended solids is improved by adding chemical precipitation. The activated sludge method has strong impact load resistance, high organic matter removal rate, and stable and reliable treatment effect. The aeration system adopts the push-flow submerged aerator developed by our company. The aeration effect, land occupation, noise, power consumption and operation and maintenance are obviously better than other aeration equipment. In summary, after the mixed wastewater passes the above treatment, it can completely ensure that it meets the discharge standards.