High-ammonia-nitrogen wastewater treatment device based on zeolite and MBR combined process

By combining zeolite particles and an MBR membrane tank in a biochemical reaction tank, and utilizing the zeolite technology proposed in the patent, the problems of secondary pollution and equipment investment in high-concentration ammonia nitrogen wastewater are solved. This achieves efficient adsorption and treatment of ammonia nitrogen wastewater, resolving existing technical problems and achieving highly efficient ammonia nitrogen wastewater treatment.

CN224212514UActive Publication Date: 2026-05-08JIANGSU KAIMI MEMBRANE TECH +1
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Patent Information

Application Number
CN202521056685.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-05-08
Estimated Expiration
2035-05-27

AI Technical Summary

Technical Problem

Existing methods for treating high-concentration ammonia nitrogen wastewater suffer from problems such as secondary pollution, high cost, unsatisfactory treatment effect, large footprint, and rapid saturation of adsorbents. In particular, biological and adsorption methods have significant drawbacks when treating high-ammonia nitrogen wastewater.

Method used

The combined process of zeolite and MBR is adopted. Zeolite particles are added to the biochemical reaction tank as a microbial carrier. Combined with the filtration effect of the MBR membrane tank, the treatment of ammonia nitrogen wastewater is highly efficient. The ion exchange and microporous structure of zeolite are used for adsorption. The biological and adsorption methods are combined. A hydrocyclone separator and a dosing system are set up for zeolite regeneration to ensure the treatment effect and the filtration performance of the membrane module.

Benefits of technology

It achieves efficient removal of ammonia nitrogen from wastewater, with effluent quality meeting the first-class urban sewage discharge standard, reducing MBR membrane fouling, extending membrane lifespan, and lowering equipment investment and operating costs.

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Abstract

The utility model discloses a high-ammonia-nitrogen wastewater treatment device based on a zeolite and MBR combined process. The high-ammonia-nitrogen wastewater treatment device comprises an adjusting tank, a biochemical reaction tank, an MBR membrane tank, a reflux tank and a water producing tank, the interior of the biochemical reaction tank is divided into an anoxic zone and an aerobic zone by a first partition plate, a submersible stirrer is arranged in the anoxic zone, an aeration device is arranged in the aerobic zone, zeolite particles are filled in the anoxic zone, a grid mesh for intercepting the zeolite particles is arranged at an overflow port of the aerobic zone, and an MBR membrane assembly is arranged in the MBR membrane tank; the regulating tank is connected with the biochemical reaction tank through a lifting pump and a lifting pipeline, the anoxic zone, the aerobic zone, the MBR membrane tank and the reflux tank are in overflow connection in sequence, the reflux tank is connected with the anoxic zone through a reflux pump and an external reflux pipeline, and the MBR membrane assembly is connected with the water producing tank through a water producing pump and a water producing pipe. The device can improve the treatment efficiency and treatment effect of the ammonia-nitrogen wastewater and improve the effluent quality.
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