Sewage treatment unit with good practicality

Abstract

The invention discloses a sewage treatment unit with good practicality. The sewage treatment unit comprises a settling box, a purifying box and a disinfection box, wherein the top end of one side of the settling box is provided with a chemical reagent tank; the top of the settling box is provided with a stirring motor; a sludge discharge outlet is formed in the bottom end of the settling box; the interior of the purifying box is provided with, from top to bottom, a magnet adsorption screen, a biomembrane filter screen and an active carbon filter screen; the sidewall of the disinfection box is provided with an ozone generator; and gas-distributing pipes are arranged in the disinfection box. The sewage treatment unit provided by the invention can effectively eliminate heavy metals, microbes, organic harmful substances, particulate matters and other impurities in water, is capable of removing pigments and peculiar smell in water, and has improved sewage treatment effect; and since the ozone generator is mounted on the sidewall of the disinfection box, ozone generated by the ozone generator can be used for sterilization and disinfection of purified clear water after purification of sewage, so sewage is allowed to reach discharge standard.

Description

technical field [0001] The invention relates to the technical field of environmental protection machinery, in particular to a highly practical sewage treatment device. Background technique [0002] At present, with the development of science and technology, the demand for water in the fields of industry, metallurgy and coal mines is also gradually increasing, but it will produce a large amount of sewage and waste water in the production process, if it is directly discharged, it will not only pollute the environment , and a great waste of resources, but some existing sewage treatment devices have single functions and cannot meet people's requirements, and often have disadvantages such as poor treatment effect and poor treatment efficiency, and traditional sewage treatment devices have no Set up a device to collect sludge. The sludge contains a lot of nutrients and can be used as fertilizer for farming. The traditional sewage treatment device does not have the function of ster...

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Problems solved by technology

[0002] At present, with the development of science and technology, the demand for water in the fields of industry, metallurgy and coal mines is also gradually increasing, but it will produce a large amount of sewage and waste water in the production process, if it is directly discharged, it will not only pollute the environment , and a great waste of resources, but some existing sewage treatment devices have single functions and cannot meet people's requirements, and often have disadvantages such as poor treatment effect and poor treatment efficiency, and traditional sewage treatment devices have no Set up a device for collecting sludge. The sludge contains a lot of nutrients and can be used as fertilizer for farming. The traditional sewage treatment device does not have the function of sterilizing sewage, and the purified sewage cannot meet the discharge standards.

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