The working principle of wastewater integrated machine

1:Electrolysis: The application of the mechanism of electrolysis, so that the harmful substances in the original waste water through the electrolytic process on the Yang and Yin poles respectively oxidation and reduction reaction conversion into insoluble in water precipitate, in order to separate and remove harmful substances. Mainly used to treat chromium-containing wastewater and cyanide-containing wastewater, but also used to remove heavy metal ions, oil and suspended solids in wastewater; It can also condense and adsorb the dye molecules in the colloidal state or dissolved state in the wastewater, and the REDOX action can destroy the color group and achieve the decolorization effect.2:Mixing adjustment: The material insoluble in water after electrolysis is initially precipitated in this link.3:PAC dosing: that is, polyaluminum chloride, a new inorganic polymer coagulant, which has a high degree of electric neutralization and bridging effect on colloids and particles in water, and can strongly remove micro-toxic substances and heavy metal ions.4:PAM dosing: that is, polyacrylamide, has good flocculation, can reduce the friction resistance between liquids. The combined use of PAC and PAM is to make PAC complete the neutralization of charge/colloid instability to form a small floc, and further increase the floc volume is conducive to full precipitation.5:Scraping slag: The dissolved gas system produces a large number of fine bubbles in the water, so that the air is attached to the insoluble floc after adding drug flocculation in the form of highly dispersed tiny bubbles, resulting in a state of density less than water, using the principle of buoyancy to float on the water surface, so as to achieve solid-liquid separation, and then scrape the scum through the scraper to the slag tank, and finally flow to the sludge tank.6:Multi-media filtration layer: ① Quartz sand filtration is to filter the water with high turbidity through a certain thickness of granular or non-granular quartz sand, effectively trapping and removing suspended matter, organic matter, colloid particles, microorganisms, chlorine, odor and some heavy metal ions in the water; The activated carbon filter is the process of intercepting the pollutants in the suspended state of water, and the suspended matter is filled with the gap between the activated carbon.7. Clear pool: Because the water flow is small after the multi-media filter layer, the SS index of filtered water is greatly improved, and it needs to be temporarily stored in this link.

8: Membrane filtration system: divided into two stages, namely hollow fiber membrane and RO reverse osmosis membrane, the use of high pressure pump as a driving force to intercept various inorganic ions, colloidal substances and macromolecular solutes in the water, so as to obtain a net water standard discharge. At the same time, the reverse osmosis concentrated water is returned to the electrolytic tank for re-treatment.