Method of processing sewage utilizing fluidized bed technique, organism compatibility filling thereof and preparing method of filling

A fluidized bed, affinity technology, used in aerobic and anaerobic process treatment, chemical instruments and methods, sustainable biological treatment, etc., can solve the problem of low impact resistance, low removal rate, filamentous bacteria expansion, etc. problems, to achieve the effect of reducing swelling, increasing biomass, and increasing stability

Inactive Publication Date: 2009-10-07
刘德沛
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Problems solved by technology

[0003] However, these two methods have disadvantages: 1) The pollutant load of the biochemical system is relatively low, and the impact resistance is small; 2) Filamentous bacteria are prone to expand, and operation and management are difficult; 3) The treatment concentration is relatively low or very low. The removal rate is low when there is high organic wastewater; 4) The nitrogen removal effect of the system is poor

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  • Method of processing sewage utilizing fluidized bed technique, organism compatibility filling thereof and preparing method of filling
  • Method of processing sewage utilizing fluidized bed technique, organism compatibility filling thereof and preparing method of filling

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Embodiment Construction

[0024] The invention provides a method for treating sewage by using a fluidized bed process, comprising the following steps:

[0025] (1) Add high-efficiency bio-affinity fillers in the pulse fluidized bed and circulating fluidized bed, the sewage first enters the pulsed fluidized bed for anaerobic biochemical treatment, and then enters the circulating fluidized bed for aerobic biochemical treatment;

[0026] (1) Sewage after biochemical treatment is separated from mud and water through secondary settling tank or air flotation. The separated sewage is discharged up to the standard, and the sludge is discharged into the sludge thickening tank or returned to the anaerobic tank or aerobic tank.

[0027] (2) Pre-treatment and post-treatment can be carried out according to the water quality of the sewage. Pretreatment is mainly to remove most of the substances that are toxic to microorganisms, some refractory and high-color substances; post-treatment such as disinfection.

[0028...

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Abstract

The invention discloses an effluent disposing method through fluid bed and making method of biological affinity fill, which comprises the following steps: filling biological affinity fill in the fluid bed; making predisposed effluent into anaerobic pulse fluid bed and aerobic circulating fluid bed to do biochemical disposal; separating water from mud through two sediment pond or gas floating technique; sterilizing; discharging sludge into sludge condensing pond or refluxing sludge to anaerobic pond and aerobic pond. The biological affinity fill is composed of polyurethane, rare earth and ferric oxide.

Description

technical field [0001] The invention relates to a process method for sewage treatment, a filler and a preparation method for the filler. Background technique [0002] In the existing sewage biochemical treatment process, the commonly used methods mainly include activated sludge method and biological contact oxidation method. The treatment mechanism is to use the biological bacteria in the sewage to decompose the organic pollutants in the sewage into carbon dioxide CO2 2 and water H 2 O, realize the purification of sewage. [0003] However, these two methods have disadvantages: 1) The pollutant load of the biochemical system is relatively low, and the impact resistance is small; 2) Filamentous bacteria are prone to expand, and operation and management are difficult; 3) The treatment concentration is relatively low or very low. The removal rate is low when the organic wastewater is high; 4) The denitrification effect of the system is poor. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/10C02F1/66C02F1/52C02F1/24
CPCY02W10/10
Inventor 刘德沛
Owner 刘德沛
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