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Granular sludge sewage treatment device capable of controlling diameter and density of granules

A sewage treatment device and granular sludge technology, which is applied in the direction of aerobic and anaerobic process treatment, can solve the problems of no biological treatment process, etc., and achieve the effect of good effluent water quality, good effluent water quality and high oxygenation efficiency

Active Publication Date: 2012-10-10
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Nowadays, the cyclone technology has been widely used in the primary treatment in the field of water treatment, such as the cyclone sedimentation tank, etc., but there is no report on the direct application of the biological treatment process.

Method used

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  • Granular sludge sewage treatment device capable of controlling diameter and density of granules
  • Granular sludge sewage treatment device capable of controlling diameter and density of granules
  • Granular sludge sewage treatment device capable of controlling diameter and density of granules

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0023] As shown in the accompanying drawings, the present invention is a granular sludge sewage treatment device that can control particle size and density, including a concentric inner cylinder 10 and an outer cylinder 11, the lower edge of the inner cylinder 10 is higher than the lower edge of the outer cylinder 11 The upper edge of the inner cylinder 10 is lower than the upper edge of the outer cylinder 11. The outer cylinder 11 is fixed upright on the base 21. There is a water outlet 7 on the side wall of the outer cylinder 11. The inner cylinder 10 is fixed by the inner cylinder support pile 14. On the base 21, an aeration device 12 is arranged in the annular space between the inner cylinder 10 and the outer cylinder 11, the aeration device 12 is fixed on the base 21 through the aeration device support pile 15, and the aeration device 12 i...

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Abstract

The invention discloses a granular sludge sewage treatment device capable of controlling diameter and density of granules. The device comprises an inner barrel and an outer barrel which are concentric; an aeration device is arranged in an annular space between the inner barrel and the outer barrel; the aeration device is fixed on a pedestal through a supporting pile of the aeration device; the inner barrel wall of the inner barrel is connected with a cylindrical cyclone cylinder; the lower end of the cyclone cylinder is connected with a wall through pipe, the wall through pipe passes through the walls of the inner barrel and the outer barrel, and the side wall of the cyclone cylinder is provided with an overflow hole; and a water inlet funnel is fixed at the upper barrel port of the innerbarrel, the water inlet funnel is connected with a spiral thin bent pipe, and the outlet of the thin bent pipe is tightly attached to the inside wall of the cyclone cylinder. On the basis of ensuringgood outlet water quality, the device successfully realizes human control and selection of the diameter and the density of the aerobic sludge granules, and realizes proper solid-liquid separation; inaddition, through the device, the initial granule forming speed is high, and the sludge load is balanced; the oxygenation efficiency is improved by gas-liquid separation; and the device has the advantages of energy conservation and high efficiency.

Description

technical field [0001] The invention belongs to the field of sewage treatment and relates to a sewage treatment device, in particular to a granular sludge sewage treatment device capable of controlling particle size and density. Background technique [0002] Since the aerobic granular sludge sewage treatment process was reported in the late 1990s, it has attracted more and more attention from environmental engineering scholars. Because aerobic granular sludge has strong load impact resistance and good sludge sedimentation effect, it can greatly shorten the sludge settling time, reduce the footprint of sewage treatment plants, and reduce project costs. It is known as the next generation of sewage treatment new technology. However, the long-term stability of aerobic granular sludge is the bottleneck that limits the popularization and application of this technology. The main reason is that the particle size of aerobic granular sludge is difficult to control during the cultiva...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
Inventor 李志华杨帆王晓昌姬晓琴
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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