Liquid treatment system and liquid treatment method

Abstract

The invention discloses a liquid treatment system and a liquid treatment method. The liquid treatment system comprises a pretreatment device, a treatment device, a purifying device and an automatic cleaning device. The liquid treatment system can accurately control the use amount of a chemical reagent to effectively prevent corrosion of the chemical reagent to devices or appliances and substantially prolong the service life of the devices, and can automatically clean. The liquid treatment system greatly reduces the liquid treatment cost, and has large-scale promotion and application values.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a liquid treatment system and method. Background technique [0002] In industrial production or life, a large amount of waste liquid will be encountered or produced, which not only pollutes the environment and endangers health, but also corrodes equipment or utensils, and directly discarding it will cause a great waste of resources. Therefore, there are many technologies about how to deal with waste liquid at present, but the liquid treatment technology in the prior art has at least the following technical shortcomings: [0003] 1. The most common liquid treatment technology in the prior art is the chemical reagent method, which is also the most widely used technology at present. The processing steps of this method are generally to add chemical reagents to the liquid first, and then precipitate after mixing. The chemical reagent method is currently the most practical l...

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Problems solved by technology

[0004] (1) It is difficult to accurately grasp the amount of chemical reagents. A small amount will lead to poor treatment effect, and a large amount will cause secondary pollution. Therefore, it is necessary to continuously detect and observe, and supplement chemical reagents according to demand. A little carelessness may lead to excessive dosage Or too little, when dealing with liquids on a large scale, the problem of the amount of chemical reagents becomes particularly prominent and difficult to solve;

[0005] (2) Chemical reagents will corrode equipment or utensils, greatly shortening the service life of the equipment, resulting in a significant increase in cost, and the corroded equipment will contaminate the liquid again, causing a vicious circle;

[0006] (3) The liquid processing equipment in the prior art lacks an automatic cleaning system, which causes the processing equipment to not be cleaned in time, thereby damaging the processing equipment, resulting in the need for frequent maintenance or replacement of the processing equipment;

[0007] (4) The cycle of processing liquid is longer

The two main reasons for the long treatment cycle are slow chemical reaction and slow precipitation treatment. The existing treatment technologies are generally natural chemical reaction and natural precipitation, and the treatment efficiency is very low;

[0008] (5) The cost of liquid treatment is high, and the comprehensive benefit effect is poor

Filtration methods generally use filter membranes and filter columns to process liquids, and adsorption methods generally use adsorption materials to absorb and purify. These methods are not only slow in processing, low in efficiency, but also expensive, and are not suitable for large-scale processing of liquids.

In addition, there are liquid treatment methods such as electromagnetism or electrolysis, but they need to be equipped with special electrical equipment and cable bridge layout, which consumes a lot of power and leads to increased costs, and will also cause strong magnetic pollution and damage to the surrounding environment and the human body. Therefore, the practical application value is not large

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