Detergent synthesis wastewater treatment technology

Abstract

The invention discloses a detergent synthesis wastewater treatment technology. The technology comprises the following steps: workshop cleaning wastewater, ground flushing wastewater and tail gas washing wastewater enters a grid well I to realize the removal of large-granule impurities, the impurity removed wastewater enters a water collection tank and is lifted to a coagulation integrated tank, medicine adding coagulation deposition is adopted to remove surfactants, suspensions and organic matters in the wastewater, water discharged from the coagulation integrated tank enters a pre-acidifying equalizing tank and is uniformly mixed with living wastewater treated through a grid well II, the obtained mixed wastewater is lifted to an EGSB reactor, water discharged from the EGSB reactor automatically flows into a bio-contact oxidation tank, water discharged from the bio-contact oxidation tank enters a secondary deposition tank, water discharged from the secondary deposition tank enters a clear water pool, and the water discharged from the clear water pool is discharged in a standard reaching manner. The technology adopts the coagulation deposition pretreatment and flocculation polymerization effect to remove the surfactants and the most organic matters in the wastewater; and the technology adopts an external reflux process, so the inhibition effect of harmful substances in the wastewater on anaerobic bacteria can be reduced, and the alkalinity of the discharged water can be fully utilized.

Description

technical field [0001] The invention relates to the treatment of high-concentration organic wastewater produced in the production process of detergents, laundry detergents and the like, in particular to a synthetic detergent wastewater treatment process. Background technique [0002] Synthetic detergent wastewater contains a large amount of anionic surfactant (LAS), unsaturated fatty acid, phosphoric acid, protein sticky matter, glycerin and Cl-, etc., and has a high concentration of COD. It is a kind of organic industrial wastewater that is difficult to treat. For synthetic detergent wastewater, the treatment methods that have been used or are in the research stage in China include: coagulation method, biochemical method, ozone oxidation method, etc. Among them, the treatment cost of ozone oxidation method and electrocoagulation method is relatively high, and it is not suitable for large-volume wastewater treatment. However, some methods are still in the research stage and ...

AI Technical Summary

Problems solved by technology

For synthetic detergent wastewater, the treatment methods that have been used or are in the research stage in China include: coagulation method, biochemical method, ozone oxidation method, etc. Among them, the treatment cost of ozone oxidation method and electrocoagulation method is relatively high, and it is not suitable for large-volume wastewater treatment. However, some methods are still in the research stage and cannot be applied industrially

Due to the high concentration of pollutants and complex components of wastewater discharged from synthetic detergent factories, it is often difficult to meet the standards if only relying on a single treatment process

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