Reclaimed water reuse treatment system for removing ammonia nitrogen

By designing a recycled water reuse treatment system including a regulation tank, anoxic tank, a biological contact oxidation tank, an MBR membrane tank and a recycled water reuse tank, combining a carbon source and alkalinity supplement system, using enhanced PVDF composite hollow fiber membranes, and combining activated carbon and ultrafiltration systems, the existing sewage treatment system has large area and poor treatment effect, and has achieved improvement in ammonia nitrogen removal and land saving.

CN222631227UActive Publication Date: 2025-03-18XIAMEN KLINGER ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202420869614.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-24
Publication Date
2025-03-18
Estimated Expiration
2034-04-24

AI Technical Summary

Technical Problem

The existing sewage treatment system covers a large area of ​​space, has poor treatment results, and has failed to achieve enrichment and recovery of other elemental resources under low pollutant concentrations in urban sewage.

Method used

A recycled water recycled treatment system for removing ammonia nitrogen was designed, including a regulation tank, an oxygen tank, a biological contact oxidation tank, an MBR membrane tank and a recycled water recycled tank. A carbon source supplement system and an alkalinity supplement system were used, and an enhanced PVDF composite hollow fiber membrane was used, and an activated carbon filtration and ultrafiltration system was combined.

Benefits of technology

The improvement of ammonia nitrogen removal effect, saving space in land, effluent stability and sludge reduction have been achieved, and the footprint of the sewage station has been reduced.

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Abstract

The utility model discloses a reclaimed water reuse treatment system for removing ammonia nitrogen, which belongs to the technical field of sewage treatment and sequentially comprises a regulating tank, an anoxic tank, a biological contact oxidation tank, an MBR (membrane bioreactor) membrane tank and a reclaimed water reuse tank according to the water inlet direction of sewage treatment, the adjusting tank comprises a lifting pump, the anoxic tank is provided with a carbon source supplementing system, the biological contact oxidation tank comprises an alkalinity supplementing system and a water inlet pump, the carbon source supplementing system is linked with the lifting pump, the alkalinity supplementing system is linked with the water inlet pump, and the carbon source supplementing system is additionally arranged to meet the requirement of denitrifying bacteria on a carbon source. The carbon source supplementing system is linked with the adjusting tank lifting pump, and automatic supplementing of the carbon source is achieved by setting the supplementing flow of the carbon source; the alkalinity supplementing system is additionally arranged to maintain the pH value of the wastewater in the nitrification stage, the alkalinity supplementing amount is reasonably adjusted according to the actual operation wastewater pH value condition, and the alkalinity supplementing system is linked with the water inlet pump to achieve automatic alkalinity supplementing.
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