Water body ammonia nitrogen oxidation and nitrate nitrogen reduction integrated denitrification apparatus and water body ammonia nitrogen oxidation and nitrate nitrogen reduction integrated denitrification method based on electrolysis

Abstract

The invention provides a water body ammonia nitrogen oxidation and nitrate nitrogen reduction integrated denitrification apparatus and a water body ammonia nitrogen oxidation and nitrate nitrogen reduction integrated denitrification method based on electrolysis, and relates to a water body denitrification apparatus. The water body ammonia nitrogen oxidation and nitrate nitrogen reduction integrated denitrification apparatus is provided with an electrolytic solution electrolysis machine, a gas-liquid separator, a denitrification pool and a sewage electrolysis machine, wherein the denitrification pool is separated into an ammonia nitrogen oxidation pool and a nitrate nitrogen reduction pool through a separation plate, the electrolytic solution electrolysis machine is provided with a water inlet, an electrolytic solution outlet, an electrolyte solution storage tank, a direct current power supply and an electrolysis groove, the water inlet of the electrolytic solution electrolysis machineis connected to the electrolyte solution storage tank, the electrolytic solution outlet of the electrolytic solution electrolysis machine is connected to the electrolytic solution inlet of the gas-liquid separator, the water outlet of the gas-liquid separator is connected to the water inlet of the sewage electrolysis machine or the water inlet of the ammonia nitrogen oxidation pool of the denitrification pool, a valve is arranged in front of the water inlet of the ammonia nitrogen oxidation pool, the hydrogen outlet of the gas-liquid separator is connected to the hydrogen inlet of the denitrification pool, the water inlet of the sewage electrolysis machine is connected to sewage and the water outlet of the gas-liquid separator, and the water outlet of the sewage electrolysis machine is connected to the water inlet of the ammonia nitrogen oxidation pool of the denitrification pool.

Description

technical field [0001] The invention relates to a water body denitrification device, in particular to an integrated denitrification device and method based on electrolytic water body ammonia nitrogen oxidation and nitrate nitrogen reduction. Background technique [0002] In the existing sewage treatment technology, the removal of total nitrogen in water, especially nitrate nitrogen, is an important technical difficulty. At present, the typical methods for removing nitrate nitrogen at home and abroad include physical methods, physicochemical methods, and biological methods. Physical methods such as reverse osmosis, capacitive adsorption and electrodialysis. Physicochemical method such as ion exchange method. The biological method mainly uses the action of nitrifying bacteria and denitrifying bacteria to nitrify ammonia nitrogen into nitrate nitrogen, and then reduce nitrate nitrogen to nitrogen gas. There are mainly biological aerated filters and denitrification deep bed fi...

AI Technical Summary

Problems solved by technology

The denitrification deep bed filter or biological aerated filter is a structure with a large volume, which not only covers a large area, but also requires a large investment and high operating costs. Therefore, there is an urgent need for a low operating cost, ammonia nitrogen and nitrate removal Apparatus and method for high nitrogen efficiency

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