A biological filter type sewage purification device and water purification method thereof

Abstract

The invention discloses a bacteria filter type sewage purifying device and method. The device is composed of a raw water pool, a first water conveying device, a sedimentation pool, a second water conveying device, a biological reaction pool, a reverse flushing device, a mud dredge pipe, a water outlet pipe, a clean water pool and a control system. Raw water enters the sedimentation pool through the first water conveying device, filtered water subjected to primary sedimentation enters the biological reaction pool through the second water conveying device, impurities obtained after sedimentation are discharged out of a discharge pipe at the bottom of the sedimentation pool, filtered water entering the biological reaction pool makes contact with a microbial membrane growing on the surface of a biological growing ball, soluble, adhesive and suspended substances in filtered water are adsorbed to the microbial membrane to be oxidized and degraded by microorganisms, clean water obtained through filtering is discharged into the clean water pool through the water outlet pipe, and when impurities on the surface layer of the microbial membrane are gradually increased, the reverse flushing device can be started to conduct reverse flushing on the microbial membrane and mud impurities can be discharged out of the biological reaction pool through the mud dredge pipe. The device is novel and reasonable in structure, high in impurity adsorption rate and wide in application range.

Description

technical field [0001] The invention belongs to the field of water purification devices, and in particular relates to a biological filter type sewage purification device. Background technique [0002] Water resources are one of the basic substances that human beings depend on for survival, and have become an important limiting factor for the sustainable development of human society. In recent years, with the development of urban construction and industry, urban water consumption has increased sharply. The discharge of a large amount of substandard sewage and wastewater not only pollutes the environment and water sources, but also worsens the increasing shortage of water resources and the deterioration of water quality, which leads to the deterioration of the ecological environment. vicious circle. [0003] Seeking economical and efficient sewage treatment technology has realistic and far-reaching significance to promote the development of sewage reuse and the restoration of...

AI Technical Summary

Problems solved by technology

As a new sewage treatment technology, the biological filter process is still in the process of development and perfection

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