Novel multimode A<2>/O oxidation ditch

An oxidation ditch and multi-mode technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of not fully utilizing the advantages of nitrogen and phosphorus removal and TP treatment effect is not enough Ideal and other issues to achieve the effect of reducing TP content

Inactive Publication Date: 2013-04-17
SHAANXI XUANHETONG TECH DEV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps reduce excess water production by reducing nitrogen (N) concentration from wastewater treatment plants without affecting their ability to produce energy or useful chemicals like fertilizers for crops.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the efficiency at removing harmful substances from wastewater through an oxygen/oxygen gas system called MultiModeA (MDO). However, current methods can be effective when treating certain types of chemicals or compounds with high levels of contaminating materials such as chlorophyll residues.

Method used

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  • Novel multimode A&lt;2&gt;/O oxidation ditch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] A new multimodal A 2 / 0 Oxidation ditch, including successively connected coarse screens, water distribution wells, fine screens and aeration grit chambers, A 2 / 0 oxidation ditch, secondary settling tank, contact disinfection tank, high-efficiency settling tank and elevated well.

[0009] Test run it, the situation is shown in the table below.

[0010] Table 1

[0011] project COD Cr TP TN Average / (mg / L) 17.4 0.27 15.8 Days to meet the standard / d 34 34 34 Water standard / (mg / L) 60 1.5 20 Effluent compliance rate / % 100 100 100

[0012] It can be seen from the above table that after 2 months of trial operation after normal operation, it was found that COD Cr 、BOD 5 , NH 3 Both -N and TN can discharge up to the standard, and the number of days up to the standard in the monitoring process accounts for 100%.

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Abstract

The invention relates to a wastewater treatment device. The invention provides a novel multimode A<2>/O oxidation ditch. The novel multimode A<2>/O oxidation ditch comprises a coarse screen, a water distribution well, a fine screen and an aeration grit chamber, an A<2>/O oxidation ditch, a secondary sedimentation tank, a contact disinfecting tank as well as a high level well, wherein the coarse screen, the water distribution well, the fine screen and the aeration grit chamber are connected with one another in sequence; the novel multimode A<2>/O oxidation ditch is characterized in that an efficient sedimentation basin is also arranged between the contact disinfecting tank and the high level well. According to the invention, the TP (Total Phosphorous) content in outlet water of a sewage treatment plant is effectively reduced and the TP in the outlet water of the sewage treatment plant is stable and reaches the standards.

Description

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Claims

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Application Information

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Owner SHAANXI XUANHETONG TECH DEV
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