Device and method for treating ammonia nitrogen wastewater by using dioxygen biological filler

Abstract

The invention belongs to the field of environmental engineering and discloses a device and method for treating ammonia nitrogen wastewater by using a dioxygen biological filler. The device is composed of a reactor, a water inlet pipe, a water outlet and a mud discharging opening, wherein the reactor is divided into an anoxic zone, an aerobic zone and a precipitation zone by two adjustable control plates, and the bottoms of the three zones are communicated; the inlet of the water inlet pipe is located in the anoxic zone, and one end of the water inlet pipe is connected with a water inlet pump; a stirrer is installed at the lower middle part of the anoxic zone, and one end of the stirrer is connected with a pressure regulator; the aerobic zone is adjacent to the anoxic zone, and a spherical suspension filler is installed in the middle of the aerobic zone; an aeration device is installed at the bottom of the aerobic zone, and the upper stream end of the aeration device is connected with a rotor flow meter and an air pump; and the precipitation zone is adjacent to the aerobic zone, the water outlet is located above the precipitation zone, and the mud discharging opening is located at the bottom of the precipitation zone. When the ammonia nitrogen wastewater is treated by using the device, the power and energy are saved, the sludge residual amount is small, and the ammonia nitrogen removing rate in the ammonia nitrogen wastewater is high.

Description

technical field [0001] The invention belongs to the field of environmental engineering, and in particular relates to a device and method for treating waste water, in particular to a device and method for treating ammonia nitrogen waste water with hydrogen peroxide biological filler. Background technique [0002] Nitrogen-containing compounds in water mainly come from domestic wastewater, industrial and agricultural wastewater. Nitrogenous compounds in water are mainly ammoniacal nitrogen (NH 3 , NH 4 + ) and organic nitrogen (protein, urea, amine compounds, protein, nitro compounds, etc.). [0003] Nitrogen in domestic wastewater mainly comes from some nitrogen-containing dissolved or insoluble substances produced in human daily life, such as meat, shredded vegetables, manure, etc., which exist in the form of ammonia nitrogen and organic nitrogen. Nitrogen from industrial wastewater is mainly caused by the direct contact with water in the production process of raw materi...

AI Technical Summary

Problems solved by technology

Because the value-added speed of nitrifying bacteria is slow, the nitrification speed of the process with short aeration time is low, and the aeration time for a long time requires a large investment. The removal of total nitrogen mainly depends on the denitrification process, while the process of nitrite nitrogen and nitrate Nitrogen cannot be denitrified; the nitrogen in the tail water after sewage treatment mainly includes ammonia nitrogen and nitrate nitrogen, relatively speaking, ammonia nitrogen is more harmful, so the nitrification process is the key to the process control of activated sludge process

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