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Laminated aerator biological filter pool and its method for pretreat light-pollution primary water

An aerated biological filter and biological filter technology, which is applied in the field of water supply purification, can solve the problems of increased investment in blast equipment and maintenance and management workload, difficult to operate in high-efficiency sections, loss of technical advantages, etc., and reduce equipment maintenance. The effect of managing workload, improving raw water quality, and facilitating maintenance and management

Inactive Publication Date: 2007-01-17
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

If the same aeration method is used for the biological aerated filter, it will not be conducive to energy saving. This is because the oxygen demand varies several times in different seasons. Significantly increased administrative workload, resulting in loss of technical advantage

Method used

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  • Laminated aerator biological filter pool and its method for pretreat light-pollution primary water
  • Laminated aerator biological filter pool and its method for pretreat light-pollution primary water

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the drawings and embodiments, but the embodiments of the present invention are not limited thereto.

[0026] Such as figure 1 , 2 As shown, the stacked biological aerated filter for pretreatment of micro-polluted raw water includes a first-stage downflow pre-aerated biological filter and two second-stage upflow biological aerated filters. Below the downflow pre-aerated biological filter body 1, there is a pipe gallery 26 with the same cross-sectional area and a height of 3.5-4m. Two second-stage upflow biological aerated filters are located on the pipe gallery 26 and the first On both sides of the first-stage downflow pre-aeration biological filter body 1, the above three filter bodies and the pipe gallery 26 form a "product"-shaped structure; the first-stage downflow pre-aeration biological filter passes through the pipe The water outlet pipe 11 in the corridor 26 is respectively connected with the ...

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Abstract

A laminated aeration biological filter pool and its treatment for pre-treatment micro-pollution primary water are disclosed. The laminated aeration biological filter pool consists of settlement pre-aeration biological filter pool and two ascending aeration biological filter pools, pipe corridor with height 3.5-4m and the same cross section area is arranged at bottom of settlement pre-aeration biological filter pool and two ascending aeration biological filter pools are located at both sides of pipe corridor and settlement pre-aeration biological filter pool. The process is carried out by filtering suspended substance, shellfish and algae in primary water by large-particular filter material of settlement pre-aeration biological filter pool and removing ammonia-nitrogen, organic substance, algae and split biological membrane under double-action of biological membrane and small-particular filter material in ascending aeration biological filter pool. It is cheap, has better space utilization ratio and purification efficiency and saves energy source. It can be used for micro-pollution water supply biological pre-treatment.

Description

Technical field [0001] The invention relates to the field of water supply purification (micro-polluted raw water pretreatment), in particular to a stacked biological aerated filter for pretreatment of water supply and a method thereof. Background technique [0002] Biological aerated filter is a new biological membrane treatment process developed in the late 1980s and early 1990s on the basis of ordinary biological filters and borrowed from the water supply filter process. It was initially used for tertiary treatment of sewage and later developed. It can be directly used for secondary processing. This technology uses granular fillers with high specific surface area as the biofilm carrier. Its outstanding features are large biomass, large hydraulic load, short hydraulic retention time, high oxygen utilization rate, high organic pollutant removal rate, and complete organic nitrogen and ammonia nitrogen. Nitrification also has the function of intercept...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 陆少鸣
Owner SOUTH CHINA UNIV OF TECH
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