Control device for solving problem of foam stacking in process of aerobic biological treatment of wastewater

Abstract

The invention provides a control device which can be used for solving the problem of stacking of plenty of foam in the aerobic biological process. The whole device comprises a force boosting electric stirrer and a group of stirring paddles, wherein the stirring paddles are 5-10cm away from the liquid level of sewage and wastewater in the device so as to be convenient for treating the stacked foam; the stirring paddles are controlled by adjusting the speed of the force boosting electric stirrer, adopt ABS (acrylonitrile butadiene styrene copolymers) resin and have strong impact resistance and good insulating properties; for the paddles in the water environment for a long term, ABS is not affected by water, inorganic salt, alkalis and alcohols and various acids and alkalis, so that the aerobic biological treatment experiment process in the device can not be affected; the stirring paddles are connected on the force boosting electric stirrer; the speeds of the stirring paddles are controlled by the stirrer, can be adjusted according to the degree of foam stacking in the device and can be manually adjusted; the stirring paddles are fixed on the force boosting electric stirrer by adopting a spiral mode, so that the stirring paddles are convenient to dismantle so as to wash suspended substances or viscous substances adhering to the stirring paddles for a long term.

Description

technical field [0001] The invention can be used to solve the foam accumulation problem generated in the aerobic biological treatment process, and belongs to the field of industrial control. Background technique [0002] Aerobic biological treatment process is one of the commonly used methods for treating sewage and wastewater. The aerobic treatment process is to use mechanical aeration or natural aeration to provide active energy for aerobic microorganisms (including facultative microorganisms) in the sewage under the premise that the sewage contains sufficient dissolved oxygen, so that they can perform normal biological metabolism to degrade organic matter. , and achieve a stable and harmless treatment method. Microorganisms use the dissolved and colloidal organic pollutants in the water as substrates for aerobic metabolism, and convert part of the organic pollutants in the sewage into inorganic substances such as carbon dioxide and water, and synthesize the other part in...

AI Technical Summary

Problems solved by technology

Current studies generally believe that the expansion of filamentous bacteria sludge caused by the abnormal proliferation of filamentous microorganisms is the main cause of biofoam, and the common measures taken are some physical or chemical methods to solve this problem, such as spraying water, dosing and disinfecting, etc. Foaming agents, drug sterilization, etc., but such methods are not suitable for small laboratory tests, and in actual industrial applications, such methods not only consume financial resources and manpower, but the effect is not good, but affects the efficiency of the entire aerobic biological treatment process

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