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Air lifting deep water type oxidizing tank

An oxidation ditch and air-lift technology, applied in the field of water treatment, can solve the problems of poor water quality treatment, low efficiency of nitrogen and phosphorus removal, etc., and achieve the effect of low infrastructure cost, simple equipment, and improved degradation rate

Inactive Publication Date: 2005-11-09
TSINGHUA UNIV +1
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Benefits of technology

This patented method improves the process of treating water containing harmful substances such as pesticides or bacteria while reducing their concentrations overcomes problems with current methods like chemical precipitation processes which require large amounts of energy input due to pH adjustments needed during processing. By utilizing this technique, it allows for effective cleanup without requiring expensive infrastructure components. Additionally, there are benefits associated with multiple stages of separation between different phases of decomposition (anaerobics) resulting in improved efficacy compared to single stage systems. Overall, these technical improvements improve the performance and cost savings of advanced biological purifying technologies used on industrial wastes.

Problems solved by technology

This patented technical problem addressed in the patents relating to treating domestic sewage involves excessive nutrients entering rivers due to overuse of fertilizers containing nitroamine/nitrosuoraphthalene sulfide compounds called BNAs. These substances cause harmful algae blooms with their ability to grow on surfaces like rocks, causing environmental concerns worldwide. To solve this issue, researchers developed alternative methods involving activated carbon adhesion bacterial strains capable of absorbing soluble metals from contaminant sources without being limited by available resources.

Method used

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  • Air lifting deep water type oxidizing tank
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Embodiment Construction

[0009] The invention provides an air-lift deep-water oxidation ditch. exist figure 1 , figure 2 In the shown structure, the oxidation ditch surrounded by the outer ditch wall 13 is divided into two parts symmetrical to the partition wall by the partition wall 4 and the baffles 1, 2 and 3, and the first aeration zone 9 is set in each part And the second aeration zone 5, in the aeration zone, be divided into a labyrinth channel 14 by baffles 1, 2 and 3, in each aeration zone, install the inlet pipe 10 as the aeration device respectively, one side of the oxidation ditch The wall is provided with a water inlet 12 and a water outlet 11. The sewage enters the oxidation ditch from the water inlet 12, and the air in the aeration zone enters from the bottom of the ditch and rises from the bottom of the ditch to the water surface; multiple aeration sections are placed at intervals in the oxidation ditch. Each aeration section is divided into two aeration areas; in the air-lift deep-w...

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Abstract

An airlift deep-water oxidizing ditch for treating sewage features that the oxidizing ditch is divided into symmertrical two parts by a partition to form two aerating regions, each aerating region has the barrier to form labyrinthine channel and the air inlet pipe as aerating device, and multi-segment aeration is used for treating the sewage alternatively in anaerobic, anoxic and aerobic regions.

Description

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Claims

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Application Information

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Owner TSINGHUA UNIV
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