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

A biological aerated filter and biological filter technology, applied in the field of water purification, can solve the problems of increased investment in blower equipment and maintenance and management workload, difficulty in high-efficiency operation, loss of technical advantages, etc., to reduce equipment maintenance The effect of managing workload, improving raw water quality, and facilitating maintenance and management

Inactive Publication Date: 2009-07-15
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 slightly polluted raw water includes a first-stage downflow pre-aerated biological filter and two second-stage upflow biological aerated filters. Below the downflow pre-aeration 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 between 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 together with the pipe gallery 26 form a "product"-shaped structure; the first-stage downflow pre-aeration biological filter passes through the The water outlet pipes 11 in the gallery 26 are respectively...

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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 (slightly 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 biofilm treatment process developed on the basis of ordinary biological filters in the late 1980s and early 1990s by referring to the water supply filter process. It was initially used for the tertiary treatment of sewage, and later developed for direct use in secondary treatment. 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 removal rate of organic pollutants, organic nitrogen and ammonia nitrogen can be completely Nitrification also has the function of intercepting and filtering suspended matter,...

Claims

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Application Information

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