A kind of method and device for microalgae coupled anammox autotrophic biological denitrification

Abstract

The invention discloses a method and a device for microalgae coupled anammox autotrophic denitrification, comprising a reactor, a water inlet device and a water outlet device; the water inlet device and the water outlet device are communicated with the reactor; the reactor comprises a reaction barrel , monitor, stirring device and packing frame; the cover and body of the reaction barrel can be detachably connected; the top surface of the packing frame is fixedly installed on the top of the inner wall of the barrel, and the short-range nitrification and anammox reaction are simultaneously realized in the reactor , which can reduce the area of ​​the process, realize high-efficiency denitrification, and replace the traditional aeration method with microalgae to produce oxygen, which can reduce the energy consumption of aeration and significantly reduce the cost of sewage treatment.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method and a device for microalgae coupled anaerobic ammonium oxidation and autotrophic biological denitrification. Background technique [0002] In recent years, with the continuous growth of my country's population and the continuous acceleration of urban industrialization, the discharge of nitrogen-containing wastewater has continued to increase, resulting in an increase in the concentration of nitrogen in the water body, resulting in serious water eutrophication. With the continuous improvement of my country's sewage discharge standards, ammonia nitrogen and total nitrogen have become one of the binding indicators that explicitly require emission reduction in my country's water pollutant discharge standards, and have also attracted great attention from the general public. [0003] The biological denitrification process is often used to treat nitrogen-containing was...

AI Technical Summary

Problems solved by technology

The PN / A denitrification process does not require the participation of organic carbon sources, and reduces the aeration demand by 60%. However, additional aeration is still required to provide dissolved oxygen. At the same time, the anaerobic ammonium oxidation reaction requires a higher temperature, and the system heating will increase a part processing cost

Images