A kind of industrial wastewater treatment process

Abstract

The invention discloses an industrial waste water treating technology which comprises an oxidation reduction reaction, an anoxic hydrolysis reaction, an anaerobic reaction, an aerobic biological reaction, ultrafiltration, nanofiltration and adsorption. The technology provided in the invention is capable of synchronous and effective removal of carbon-containing organic pollutants and nutrient elements like nitrogen and phosphor, enables final chemical oxygen demend (COD) to reach less than 40 mg / L, ammonia nitrogen to be maintained below 6 mg / L and total phosphorus to be maintained below o.4 mg / L, and can be used for industrial production. According to the invention, the concentrate of ultrafiltration and nanofiltration is subjected to cyclic and repeated treatment and is thoroughly degraded, producing no waste liquid; therefore, good economic and environmental benefits are obtained.

Description

technical field [0001] The invention relates to a factory water treatment process, in particular to an industrial waste water treatment process. Background technique [0002] Chemical manufacturers need to insulate and heat the raw materials in many reactors, usually using steam to insulate and heat, and the industrial wastewater after cooling has the characteristics of large discharge and low pollution. At present, the waste water is mixed with rainwater after entering the pool, and most of it is discharged as discharge water, and a small amount is used as primary reuse water, which is only used for watering flowers and cleaning the ground. The boiler water needs to be added after being treated with tap water again, which increases the usage of tap water. Under the current situation of severe shortage of water resources and mobilization of energy conservation and emission reduction by the whole society, it is very unfavorable for the full utilization of resources and does ...

AI Technical Summary

Problems solved by technology

At present, after entering the pool, the waste water is mixed with rainwater, and most of it is discharged as runoff water, and a small amount is used as primary reuse water, which is only used for watering flowers and cleaning the ground.

The boiler water needs to be re-treated with tap water before adding it, which increases the usage of tap water

Under the current situation of serious shortage of water resources and mobilization of energy conservation and emission reduction by the whole society, it is very unfavorable for the full utilization of resources and does not meet the requirements of circular economy

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