Low-temperature frozen sewage treatment system

Abstract

The invention relates to the field of environment-friendly sewage treatment equipment, in particular to a low-temperature frozen sewage treatment system. The low-temperature frozen sewage treatment system comprises a reaction unit and a storage unit, wherein the reaction unit comprises a tank body, a refrigeration device which is mounted on the tank body and is used for providing a cold source into a solution in the tank body, and a heating device for providing a heat source for crystallized ice bodies in the tank body; a stirrer is arranged in the tank body, and is driven by a speed reducer mounted at the upper end of the tank body; a discharging device is mounted at the lower end of the tank body; the storage unit comprises a raw water storage tank for storing sewage to be treated; the raw water storage tank is communicated with the tank body through a hydraulic pump. The low-temperature frozen sewage treatment system is simple in structure and convenient to operate, and can quickly and effectively treat sewage without producing secondary pollution; respective component substances in the sewage cannot be damaged, and useful components in the sewage can be favorably effectively recycled. Compared with the prior art, the sewage treatment effect is better, the impurity content is lower, and a discharging standard can be completely met, and the low-temperature frozen sewage treatment system has extremely high popularization value.

Description

technical field [0001] The invention relates to the field of environmental protection sewage treatment equipment, in particular to a low-temperature freezing sewage treatment system. Background technique [0002] In reality, especially in the chemical industry, there are a lot of sewage and sludge with complex components or called emulsified sewage and suspended sewage. This kind of sewage is different from the sediments of ordinary rivers. It is composed of microorganisms and their oxidized residues. Not only Contains heavy metals, as well as organic matter, non-degradable organic matter and inorganic matter. The treatment method of this type of sewage is generally to dehydrate it first. Reducing the water content can enrich the pollutants in the sewage, and centralized treatment can save costs to the greatest extent. , can also improve the efficiency of sewage treatment. However, due to the complex physical form and chemical composition of the components in the sewage, th...

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Problems solved by technology

However, there are still some problems with this device. The main reason is that the water will contain many other impurities in the process of freezing into ice. The more complex the components in the sewage, the greater the concentration, and the more likely it is to contain a large amount of other components in the ice. Water can be frozen into ice, which itself also needs an inner core. Therefore, in fact, the crystallized ice obtained by this device contains a large amount of impurities. Such crystallized ice cannot be directly discharged as qualified treated water, which requires Perform secondary processing, but the device does not have corresponding equipment for processing

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