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Point compensated linear aerating pipes

An aeration tube and compensation technology, applied in the field of point-compensation linear aeration tube, can solve the problems of unable to promote the rise of deposited pollutants, harsh operating conditions for release, shortened service life, etc., to achieve enhanced biological reaction efficiency, good mechanical Mechanical properties, anti-conjunctival properties, and long service life

Inactive Publication Date: 2008-12-17
LANZHOU UNIVERSITY
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Problems solved by technology

This type of linear aeration tube is suitable for large-volume, shallow-water oxidation ditch sewage biological treatment systems, but it does not show corresponding advantages for deep-water sewage treatment systems with fillers, and the installation density is also high, nor can it promote aeration. Sedimentary pollutants rise from the bottom of the gas pool to participate in biological reactions
Bacterial erosion and conjunctival clogging lead to performance degradation and shortened service life are also one of the problems faced by the aeration device. The ADS system prevents bacterial erosion by regularly spraying HCl gas into the aeration tube for sterilization, but HCl gas release The equipment requirements are high and the operating conditions are relatively harsh. Chinese patent ZL02214321.1 has announced a microporous aeration device with antibacterial and antibacterial functions, but insufficient point aeration and electrochemical corrosion of metal pipes will also affect its performance. and lifespan

Method used

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  • Point compensated linear aerating pipes
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Embodiment Construction

[0023] refer to figure 1 , figure 2 , a point-compensated linear aeration tube is provided with an aeration cutout 1, a microporous membrane aeration head 2 and an aeration branch pipe 3 on a nanocomposite plastic aeration hose 4. Among them, the aeration cutout 1 is arranged in parallel on the upper pipe surface and both sides of the aeration pipe 4; the microporous membrane aeration head 2 is arranged between two rows of aeration cutouts 1; the aeration branch pipe 3 is arranged on the two sides for aeration The lower part of the cutout 1, and the number ratio of the aeration cutout 1, the microporous membrane aeration head 2 and the aeration branch pipe 3 is 10:6:1. The aeration cut 1 is completed by cutting with a blade at the predetermined position of the nanocomposite plastic hose, and the microporous membrane aeration head and the aeration branch pipe are purchased from the market.

[0024] The vinyl SiOx nanocomposite plastic hose used in the above-mentioned point c...

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Abstract

A point compensated linear aerating tube for sewage biological treating system consists of aerating notch, microporous aerating head and aerating offtakes. It is prepared by taking SiOx or ZnO nanometer composite material and polyolefin material, mixed extruding, linear aerating and point aerating coordinating reacting, and turbulent aerating agitating to promote deposited pollutant to take part in biological reaction. Its advantages include higher oxygen utilizing rate and biological reacting efficiency, aging and bacteria corroding resistant performances, and longer life.

Description

technical field [0001] The invention relates to an aeration device used in sewage biological treatment, in particular to a point-compensated linear aeration tube. Background technique [0002] The aeration device is an essential part of the biological sewage treatment system, and some sewage physical and chemical treatment systems also use aeration as an auxiliary means. The oxygen utilization rate in the aeration system directly affects the efficiency of sewage biological treatment, and is also an important indicator of the aeration device. At present, perforated and microporous aeration devices are generally used to provide point aeration. The aeration radius is limited and there are aeration dead angles. Therefore, the oxygen utilization rate is low, and the conjunctiva and pollutant deposition on the surface will form blockages, which will affect the service cycle and even affect the service life. . The ADS system developed by Canada's Nelson Environmental Inc. created...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/20C02F3/12C02F3/02
CPCY02W10/10
Inventor 李彦锋周林成候英凤
Owner LANZHOU UNIVERSITY
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