Device for treating organic wastewater via contact oxidation process

Abstract

The invention relates to a device for treating organic waste via a contact oxidation process. The device comprises: a water treatment tank, wherein two sides of the water treatment tank are respectively provided with a water inlet and a water outlet; a biological adsorbent, which is placed in hollowed-out suspension balls and is arranged in the water treatment tank; and an aeration device, which comprises an air blower arranged outside the water treatment tank, a main air pipe arranged inside the water treatment tank and communicating with the air blower, and a plurality of branch pipes connected in series with the hollowed-out suspension balls. The biological adsorbent is placed in the hollowed-out suspension balls, so a contact area with sewage is increased, and meanwhile, an aeration area is increased; aeration holes are directly formed in the inner sections of the hollowed-out suspension balls, and the biological adsorbent can be directly aerated, so air consumption can be saved; the aeration holes are arranged to be in a triangular shape with pore diameters gradually reduced from the branch pipes, so air can be gathered easily, and aeration efficiency is improved; and the biological adsorbent disclosed by the invention is high in phenol selective adsorption rate, small in influence on the environment of a water body and high in adsorption speed.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a device for treating organic wastewater by a contact oxidation method. Background technique [0002] Common industrial wastewater, such as coal chemical industry, dyestuff, pharmaceutical, pesticide, and papermaking, contains high concentrations of organic substances, and is a common highly toxic and refractory organic wastewater. If discharged randomly, it will not only harm the growth and reproduction of animals and plants, but also endanger human life and health. For the treatment of industrial wastewater, there are usually adsorption methods, flocculation sedimentation methods, biodegradation methods, etc., and good results have been achieved in past research. However, with the continuous development of society, treatment methods and treatment agents also need to be updated. [0003] Microbial degradation is an economical, practical and environmentally friendly treatment tec...

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Problems solved by technology

[0003] Microbial degradation is an economical, practical and environmentally friendly treatment technology, which is the focus of current research. However, a single treatment method can no longer meet the current industrial wastewater treatment needs.

In the traditional biodegradation technology, most of the carrier materials that immobilize microorganisms are only used as a loading medium without adsorption, and a small amount of organic matter with adsorption capacity is used as carrier materials. However, the mechanical properties of these materials are relatively poor. Weak, unable to finalize the shape, and the application site is limited; composite carrier materials refer to materials that combine inorganic and organic carriers, which improves the problems of weak binding strength and low adsorption performance of a single carrier, and the comprehensive effect is good, but the specificity is relatively low Difference

[0004] In the water treatment device, the filter bed filler and surface microorganisms form a stable ecosystem, which is strong against the impact of hydraulic load and can deal with high-concentration organic pollutant wastewater. However, the filter is prone to clogging after long-term operation, which affects ventilation and oxygen supply. , thereby affecting the water quality of the effluent

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