Nitrogen and phosphorus wastewater treatment method based on multi-interface oxidation of carbon-based materials

By using carbon-based composite materials loaded with manganese and magnesium oxides in wastewater treatment, combined with microbial oxidation, the problems of low nitrogen and phosphorus removal efficiency and high cost in existing technologies have been solved, achieving efficient and economical wastewater purification, and the materials are recyclable.

CN118651984BActive Publication Date: 2026-06-30HUNAN XIANDAO YANGHU RECLAIMED WATER CO LTD +1
View PDF 6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN XIANDAO YANGHU RECLAIMED WATER CO LTD
Filing Date
2024-05-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing wastewater treatment technologies are inefficient and costly in terms of nitrogen and phosphorus removal, making it difficult to meet emission standards simultaneously. Furthermore, traditional materials suffer from reduced efficiency and high costs when applied on a large scale.

Method used

Using carbon-based composite materials as a carrier, manganese oxides and magnesium oxides are loaded on the surface. Through multi-interface oxidation and synergistic effect with microorganisms, efficient nitrogen and phosphorus wastewater purification is achieved, and magnetic fields are used to recover materials to reduce costs.

Benefits of technology

It improves nitrogen and phosphorus removal efficiency, reduces treatment costs, achieves efficient and low-cost wastewater purification, and the materials are recyclable.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118651984B_ABST
    Figure CN118651984B_ABST
Patent Text Reader

Abstract

This invention discloses a method for treating nitrogen and phosphorus wastewater based on multi-interface oxidation using carbon-based materials. The invention involves adding a carbon-based composite material with manganese and magnesium oxides loaded on its surface to nitrogen and phosphorus organic wastewater with a pH of 6-9. The dosage is adjusted according to the CODcr and TP content and the BOD5 / CODcr ratio in the wastewater. The carbon-based composite material is readily available, has a simple preparation process, and exhibits high oxidation and adsorption performance. After mixing with wastewater, the material provides multiple chemical oxidation pathways and can synergistically oxidize with microorganisms to achieve efficient and low-cost nitrogen and phosphorus wastewater purification. The magnesium on the material surface can mineralize inorganic phosphorus in situ to form magnesium phosphate minerals that are stored in the sludge for easy resource utilization. The treatment process provided by this invention is simple to operate, environmentally friendly, and has excellent nitrogen and phosphorus removal effects. It can be combined with conventional biological nitrogen and phosphorus removal technologies to improve treatment efficiency and has high application value.
Need to check novelty before this filing date? Find Prior Art