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Capacity expanding method of photocatalysis waste water degrading reactor with lamp zone anti-water bursting maintenance

A wastewater degradation and degradation reaction technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of easily polluting the inner wall of the quartz tube and avoid secondary pollution. Pollution, overcoming the excessive difference before and after, benefiting the effect of protection

Inactive Publication Date: 2013-11-13
李榕生
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

[0048] Based on the structure of the CN102260003A scheme, the electrodeless ultraviolet lamp is placed in the lumen of the quartz tube. In order to ensure the normal luminous work of the electrodeless ultraviolet lamp, the inner wall of the quartz tube must be kept clean to maintain the permeability to ultraviolet light. Moreover, based on similar light permeability requirements, the outer side of the lamp wall of the electrodeless ultraviolet lamp involved must also be kept clean; however, the structure of the CN102260003A scheme is difficult to avoid the problem of water inrush in the lumen area of ​​the quartz tube The so-called water inrush in this case refers to the unwelcome water in the reactor protruding into the lumen area of ​​the quartz tube; there are generally two reasons for the water inrush: one is the quartz tube The thermal expansion and contraction of the air in the cavity area leads to underpressure in the lumen area of ​​the quartz tube, and the second is that the air in the lumen area of ​​the quartz tube escapes and causes underpressure in the lumen area of ​​the quartz tube. In this way, driven by the relative positive pressure of the surrounding water body, The water in the reactor gradually breaks into the lumen area of ​​the quartz tube, forming a water inrush situation; when the air pump is powered off and the outer surface of the quartz tube is partially or mostly submerged in water, the outburst is especially prone to occur. Water conditions; specifically, the most likely period for this water inrush problem is the following two periods, the first period is when the wastewater to be treated is filled into the reactor and the air pump has not been started, and the second period is After the air pump is turned off and the water extraction procedure has not been completed; when the water inrush situation occurs, the water mixed with many inorganic impurities protruding into the lumen of the quartz tube can easily contaminate the inner wall of the lumen of the quartz tube and the electrodeless ultraviolet lamp The outer surface of its own lamp wall leads to a significant decrease in the ultraviolet light transmittance of the relevant light-transmitting structural parts, which in turn affects the overall wastewater photodegradation treatment efficiency of the relevant wastewater degradation reactor. Therefore, the problem of water inrush should not be avoided. This is Question sixteen

Method used

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Embodiment Construction

[0125] The implementation of the method in this case, the main steps are as follows:

[0126] a, The electrodeless ultraviolet lamp located in the quartz tube is covered by a cage-shaped microwave confinement device made of metal, so that the electrodeless ultraviolet lamp is inside the cage-shaped microwave confinement device, and the overall structural position of the cage-shaped microwave confinement device It is also inside the quartz tube, which is a component used for gas-liquid phase isolation and screen protection. The cage-shaped microwave confinement device is a cage-shaped metal component, and the cage-shaped microwave confinement device The function is to confine the microwave radiation inside;

[0127] b. Suspending the quartz tube with the electrodeless ultraviolet lamp wrapped by the cage-shaped microwave confinement device made of metal material, it is suspended in a region with a relatively small diameter of the cavity inside the cavity of a trumpet-shaped com...

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Abstract

The invention relates to a capacity expanding method of photocatalysis waste water degrading reactor with lamp zone anti-water bursting maintenance, and belongs to the technology field of waste water processing. The invention aims to solve problems like water bursting of quartz tube chamber for electrodeless lamp screen protection, and catalyst loss, microwave energy waste, single tankage small, hard determination of degradation terminal time etc. existing in relevant prior art. The method mainly comprises the following steps: inserting a mini diaphragm pump for supplementing air under normal state at low-power and low flow on the bypass of air passage of the quartz tube chamber; constraining microwave to irradiate assigned area only; expanding reactor dimensions; intercepting catalyst step by step by using an external multistage cascade filter; and monitoring the reaction process with an ozone sensor and closing related power source automatically when the degradation terminal arrived.

Description

technical field [0001] The invention relates to a method for expanding the capacity of a photocatalytic wastewater degradation reactor that takes into account the anti-water inrush maintenance of a lamp area, and belongs to the technical field of CO2F wastewater treatment. Background technique [0002] Microwave photocatalytic degradation treatment technology, as an effective harmless treatment technology for industrial wastewater containing organic pollutants, has attracted much attention in recent years. [0003] Regarding the microwave photocatalytic degradation technology, as an example, refer to the Chinese patent application with publication number CN102260003A. [0004] The Chinese patent application with the publication number CN102260003A uses microwaves as the excitation source to excite the electrodeless ultraviolet lamp to emit ultraviolet rays, and irradiates the suspension mixed with photocatalyst titanium dioxide inside the liquid. The electrodeless ultraviole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08
Inventor 李榕生
Owner 李榕生
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