High-efficiency diatomaceous earth clarification tank

Abstract

The invention discloses a high-efficiency diatomaceous earth clarification tank. The lower part of the tank body is provided with a sludge tank; a support mesh is fixed in a center reaction barrel; a plastic ball with cellular holes is arranged in the center reaction barrel; the center reaction barrel positioned under the support mesh is communicated with a sewage inlet pipe and an air compression pipe; the center reaction barrel is arranged in the middle of a center pipe; the center pipe is fixed on a tank body; the lower part of an inner diatomaceous earth filter chamber is tapered and is communicated with the sludge tank; at least two inner inclined tube filter layers are fixed between the inner diatomaceous earth filter chamber and the center pipe; the center pipe extends out of the lowermost inner inclined tube filter layer; two ends of an outer inclined pipe filter layer are respectively fixed on the tank body and the center pipe; the outer inclined pipe filter layer is positioned above the inner inclined tube filter layers; and a clear water outlet pipe is communicated with the upper part of the tank body. The high-efficiency diatomaceous earth clarification tank has the advantages of high stability of a suspension layer, low medicament consumption, low cost of sewage treatment, small equipment volume, small occupied area and low production cost.

Description

Technical field: [0001] The invention relates to the technical field of sewage treatment, and more specifically relates to a clarifier (tank) for treating sewage with diatomite. Background technique: [0002] The shape of the compound refined diatomite is that there are countless sieves in the round algae, so it is also called round sieve algae, the pH value is about 6, powder, the number of diatoms: 2-250 million / g, the pore size is 7-125 nanometers . The structure of the substance determines its performance. After purification, activation and compound modification, diatomite not only has a large specific surface area, but also has a lot of micropores, and has strong adsorption to organic and inorganic colloidal particles. The diatom mud layer has a good filtering effect, so special special process equipment is used in wastewater treatment, which can give full play to the role of compound refined diatom earth water treatment agent, and can efficiently degrade COD, remove s...

AI Technical Summary

Problems solved by technology

Existing diatomite sewage treatment pool (tank) has the following deficiencies in the treatment process: 1, because a large amount of organic matter and microorganisms are contained in the waste water, anaerobic reaction can take place in the sludge suspension layer that forms and produce gas, thereby can Destroy the stability of the suspension layer, which is not considered by general equipment

2. For the vertical flow, flat flow or radial flow sedimentation tanks of traditional wastewater treatment, the dosage of diatomite is relatively large, and the cost of sewage treatment is high

3. At the same time, it occupies a large area and relatively high equipment cost

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