Waste-water treatment and separation device

Abstract

The invention belongs to the technical field of waste water treatment equipment, and provides a waste-water treatment and separation device. The device comprises a box body which is provided with a water inlet pipe and a water outlet pipe, the top part of one side of the box body is provided with a sludge outlet, an annular roller driven by a drive electrical machine is rotatingly installed in the box body, the annular roller is close to one side of the box body, wherein the side of the box body is provided with the sludge outlet, the interior of a hollow cavity of the annular roller is provided with a magnetic substance, the magnetic substance is fixedly installed at the box body and close to the bottom of the box body, and the magnetic substance and a transverse center line of the annular roller are arranged according to a circumferential-direction angle; and the bottom of the box body is provided with a water purification tank which is corresponding to the annular roller. The device is simple in structure and low in costs, improves purification treatment efficiency of wastewater containing heavy metals, and is convenient for recycling of magnetic flocculation masses.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment equipment, in particular to a wastewater treatment and separation device. Background technique [0002] Wastewater treatment is the use of physical, chemical and biological methods to treat wastewater, purify wastewater, reduce pollution, and achieve wastewater recycling and reuse, making full use of water resources; with the rapid development of modern industry, various types of wastewater are discharged in large quantities. As we all know, industrial wastewater contains a variety of heavy metal ions, such as lead, zinc, mercury, cadmium, chromium, etc., which are extremely harmful when discharged into the water environment, making the water seriously polluted by heavy metals, which are not only difficult to be biodegraded, but also enter the water through the water The biological chain will eventually be enriched in the human body, seriously endangering human health. On the other ha...

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Problems solved by technology

[0002] Wastewater treatment is the use of physical, chemical and biological methods to treat wastewater, purify wastewater, reduce pollution, and achieve wastewater recycling and reuse, making full use of water resources; with the rapid development of modern industry, various types of wastewater are discharged in large quantities. As we all know, industrial wastewater contains a variety of heavy metal ions, such as lead, zinc, mercury, cadmium, chromium, etc., which are extremely harmful when discharged into the water environment, making the water seriously polluted by heavy metals, which are not only difficult to be biodegraded, but also enter the water through the water The biological chain will eventually be enriched in the human body, seriously endangering human health. On the other hand, the demand for heavy metals in modern society is increasing, and there is a relative shortage of heavy metal resources. Therefore, to achieve efficient purification of heavy metal wastewater, recycling Heavy metals have become an urgent problem to be solved in wastewater treatment

[0003] Nowadays, the separation and purification of wastewater are mainly divided into two methods: sedimentation and magnetic separation. The separation by sedimentation requires the construction of a large-scale sedimentation tank, which not only occupies a large area, but also has low separation efficiency. Magnetic separation technology usually uses Add magnetic sludge flocculant to wastewater, stir well, mix it with metal ions and other pollutants, form magnetic flocculant under certain conditions, and then use magnetic field to separate solid and liquid. This kind of separation treatment High efficiency and good purification effect, so it is widely used in muddy water purification treatment

[0004] Although the magnetic separation equipment in the prior art can achieve high-efficiency separation and purification of muddy water, we find that it still has the following defects in daily use: 1. Large volume, complex structure, and high cost; 2. It is not easy to realize magnetic Recycling of flocculation; 3. The operation of the equipment is cumbersome, and the separation efficiency needs to be improved

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