A filter device for treating industrial heavy metal sewage

Abstract

The invention relates to the field of sewage treatment technology, and concretely relates to a filtering apparatus for treatment of industrial heavy metal sewage. The apparatus comprises a housing and a top cover, the top of the housing is opened, the top cover is arranged at the top of the housing, and the housing is internally provided with a sewage retention zone, a screen mesh, a heavy metal adsorption layer, an organic substance adsorption layer, and a sterilization and filtration layer in order from up to bottom; the housing is also internally provided with a negative pressure filter chamber and a filter tube, the negative pressure filter chamber is arranged at the bottom part of the top cover, the top of the filter tube is communicated with the bottom part of the negative pressure filter chamber, and the bottom of the filter tube and the sterilization and filtration layer are communicated. The filtering apparatus for treatment of industrial heavy metal sewage has a simple structure and usage convenience, and can be used for effectively removing solid impurities and heavy metal ions in sewage as well as carrying out sterilization treatment of sewage, so that after treatment, the purified water reaches the national standard; the apparatus has important meanings for promotion of repeat usage of water resource and reduction of environment pollution.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a filtering device for treating industrial heavy metal sewage. Background technique [0002] With the rapid development of industrial globalization, the problem of environmental pollution is becoming more and more serious. For example, the cadmium rice incident reported by the media in May 2013 and the water pollution incident in the Huaihe River Basin led to the emergence of cancer villages, which sounded the alarm for people. Therefore, in my country, environmental pollution, especially heavy metal pollution, has become an urgent problem to be solved for scientific development and improvement of people's livelihood. Generally speaking, heavy metal pollution in water mainly comes from industries such as industrial mining and factory wastewater discharge. At present, the treatment methods for heavy metals in water mainly include adsorption method, flocculation sediment...

AI Technical Summary

Problems solved by technology

The device uses reaction device, sedimentation device, filter device and dehydration device to carry out circulating sewage treatment, so that it can effectively remove various heavy metal ions in the heavy metal sewage produced by electroplating, mining and other industries at one time at room temperature, and effectively overcomes the iron pollution. The problem of high energy consumption in the treatment process of oxygen body oxidation technology, and with the increase of the number of cycles, the sedimentation rate of sludge is gradually accelerated, the treatment efficiency is gradually improved, and the drainage water quality is also high, but the device is complicated and involves multiple equipment. Large area and high cost, not suitable for popularization and application

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