Method for treating sewage containing ammonia and nitrogen

A treatment method and sewage technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of low ammonia nitrogen, limited relaxation time, and low efficiency of gradient magnetic field activation technology and other problems, to achieve the effect of improving the removal rate of ammonia nitrogen, improving the removal rate of ammonia nitrogen, and improving the utilization rate

Active Publication Date: 2019-05-28
北京太和洁源科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing technology shows that the declustered water molecules can relax for a certain period of time to maintain the activated state, but the relaxation time is limited after all, which limits the treatment capacity and treatment effect of the water body, and does not make full use of the water body in the activated state. Limited utilization of technology
[0004] At present, there are few reports on the use of gradient magnetic field activation technology to treat ammonia nitrogen in sewage, and the use efficiency of gradient magnetic field activation technology is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Configure 500mL of simulated sewage with an ammonia nitrogen content of 1200mg / L and a pH value of 11, pass it into a 5L simulated blow-off tower, and use 35°C air to blow off the simulated ammonia-nitrogen sewage through aeration. The gradient magnetic field generating device installed outside the simulated stripping tower applies a gradient magnetic field to the ammonia nitrogen sewage in situ for treatment. The stripping time is 40 minutes; the stripping gas flow rate is 3L / min. After measurement, the ammonia nitrogen content after treatment was 53mg / L.

Embodiment 2

[0033]Configure 500mL of simulated sewage with an ammonia nitrogen content of 1200mg / L and a pH value of 11, pass it into a 5L simulated blow-off tower, and use 25°C air to blow off the simulated ammonia-nitrogen sewage through aeration. The gradient magnetic field generating device installed outside the simulated stripping tower applies a gradient magnetic field to the ammonia nitrogen sewage in situ for treatment. The stripping time is 30 minutes; the stripping gas flow rate is 8L / min. After measurement, the ammonia nitrogen content after treatment was 47mg / L.

Embodiment 3

[0035] Configure 500mL of simulated sewage with an ammonia nitrogen content of 1200mg / L and a pH value of 11, pass it into a 5L simulated blow-off tower, and use 45°C air to blow off the simulated ammonia-nitrogen sewage through aeration. The gradient magnetic field generating device installed outside the simulated stripping tower applies a gradient magnetic field to the ammonia nitrogen sewage in situ for treatment. The stripping time is 80 minutes; the stripping gas flow rate is 0.5L / min. After measurement, the ammonia nitrogen content after treatment was 71mg / L.

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PUM

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Abstract

The invention provides a method for treating ammonia and nitrogen in sewage. A gradient magnetic field activation and stripping process in-situ combined technology is adopted to treat high-concentration ammonia nitrogen sewage into low-concentration ammonia nitrogen sewage, so that the utilization rate of the gradient magnetic field activation technology is improved, the effect of the stripping process is enhanced, and the ammonia and nitrogen removal rate is improved; and further, the low-concentration ammonia nitrogen sewage is subjected to advanced treatment by a gradient magnetic field activation and breakpoint chlorination process in-situ combined technology to treat the low-concentration ammonia nitrogen sewage into sewage which meets the ammonia nitrogen emission standard, so that the utilization rate of the gradient magnetic field activation technology is improved, the effect of the breakpoint fluorination process is enhanced, and the ammonia and nitrogen removal rate is improved.

Description

technical field [0001] The application relates to a sewage treatment method, in particular to a treatment method for ammonia nitrogen-containing sewage. Background technique [0002] With the continuous acceleration of industrialization and urbanization in our country, the ensuing environmental pollution problems are becoming more and more serious. Environmental pollution leads to the continuous deterioration of the water environment and seriously affects the safety of my country's water resources. Among them, ammonia nitrogen is an important factor causing water eutrophication and environmental pollution. It can easily cause algae and other microorganisms to multiply in water. The operation of tap water treatment plants is difficult, causing drinking water odor. , and even lead to the drying up of lakes. In addition, ammonia nitrogen will also increase the amount of chlorine used in the disinfection of water supply and industrial circulating water sterilization; it is corr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12
CPCY02W10/10
Inventor 章亦兵戴荣继杨长有
Owner 北京太和洁源科技发展有限公司
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