An environmentally friendly wastewater purification and treatment device for lead-zinc ore beneficiation

CN224280020UActive Publication Date: 2026-05-26SICHUAN HUILI ZINC & PLUMBUM COMPANY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HUILI ZINC & PLUMBUM COMPANY
Filing Date
2025-06-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing wastewater treatment technologies for lead-zinc ore beneficiation suffer from problems such as low treatment efficiency, unstable water quality, high investment, large land occupation, low solid-liquid separation efficiency, and large sludge production, making it difficult to meet the needs of efficient purification and resource reuse.

Method used

The process chain of "anaerobic + aerobic + membrane treatment" is adopted. Through the combination of sewage collection tank, anoxic tank, membrane bioreactor, sedimentation tank and clear water tank, combined with mechanical bar screen, agitator, aerator and disinfectant tank, sewage is degraded and separated in stages. The membrane separation technology of membrane bioreactor and the aerator provide dissolved oxygen to form a highly efficient purification process.

Benefits of technology

It improves wastewater treatment efficiency, ensures the stability of purified water quality, reduces land area and sludge production, lowers operating costs, and enhances the system's resilience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of wastewater purification equipment for lead-zinc ore beneficiation. It provides an environmentally friendly wastewater purification and treatment device for lead-zinc ore beneficiation, comprising a wastewater collection tank, an anoxic tank, a membrane bioreactor (BBR), a sludge tank, a sedimentation tank, and a clear water tank. The wastewater tank has a wastewater outlet and is connected to the top of the anoxic tank via a lift pump and lift pipe. The anoxic tank is connected to the BBR via an overflow hole. One end of the BBR is connected to the anoxic tank via a sludge pump and return pipe, while the other end is connected to the sludge tank via a sewage pump and sewage pipe. An aerator is installed inside the BBR. One end of the aerator is connected to a blower installed on the BBR, and the other end is connected to the sedimentation tank via a self-priming pump and aeration pipe. A clear water pipe is installed at the top of the sedimentation tank, connecting to the clear water tank, forming an "anaerobic + aerobic + membrane treatment" process chain. This achieves step-by-step degradation and separation of wastewater, improving wastewater treatment efficiency and ensuring stable purified water quality.
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