A treatment device for boron-containing organic wastewater

Abstract

A treatment device for boron-containing organic wastewater is disclosed. The device includes a low-pressure dissolved air tank, a sewage draining pump connected to the low-pressure dissolved air tank,an ozone generator connected to the low-pressure dissolved air tank, a catalytic reactor connected to the low-pressure dissolved air tank and a water discharging pipe connected to the catalytic reactor. The low-pressure dissolved air tank increases the dissolved amount of ozone in wastewater. The catalytic reactor includes a reactor shell and includes an aeration zone, a filler zone and a reaction zone which are arranged in order from bottom to top in the reactor shell. The lower part of the aeration zone is provided with a water inlet. The water discharging pipe is arranged at the upper partof the reaction zone. Titanium dioxide catalytic plates are arranged lengthways and divide the reaction zone into a plurality of oxidation zones, an ultraviolet lamp column is vertically disposed inthe center of each oxidation zone, and the catalytic plates are completely in the radiation distance of ultraviolet light. A light-reflecting guide cylinder can reflect ultraviolet light, thus enhancing illumination and increasing the photocatalysis efficiency. The catalytic reactor is connected to a tail gas treatment device to treat tail gas residual after emission.

Description

technical field [0001] The invention relates to the technical field of waste water treatment equipment, in particular to boron-containing organic waste water treatment equipment. Background technique [0002] The main pollutant in industrial wastewater is boric acid, boron is one of the essential elements of organisms, but studies have shown that high levels of boron have a negative impact on animal reproductive function; boron mass concentration higher than 0.3-0.5mg / L Irrigation water also has certain toxicity to certain crops. After being discharged into the environment, organic waste water containing fluorine and boron will cause water, soil, and groundwater pollution, and will be enriched in soil, terrestrial plants, and aquatic organisms. The long-term harm to the environment is great. Improper treatment of boron-containing organic wastewater will cause serious harm to human health and environmental safety. In my country's drinking water hygiene standards, boron is us...

AI Technical Summary

Problems solved by technology

[0004] 1. The current various treatment methods do not consider the impact of COD;

[0005] 2. The chemical hydrolysis process takes a long time, even up to 2 hours;

[0006] 3. The precipitation method often needs to adjust the pH value of the wastewater, and it is difficult to reduce the boron and fluorine content in the wastewater to an acceptable standard;

[0007] 4. Chemical flocculation often causes secondary pollution;

[0008] 5. Adsorption and reverse osmosis are suitable for treating wastewater with low boron content, and the treatment cost is relatively high

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