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Recycling treatment process of high-concentration ammonia nitrogen waste water

A technology of ammonia nitrogen wastewater and treatment process, applied in the direction of heating water/sewage treatment, degassed water/sewage treatment, neutralized water/sewage treatment, etc., can solve the problems of not finding, frequent operation and difficulty of resin regeneration, and achieve Obvious effect

Inactive Publication Date: 2009-12-30
唐绍明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The breakpoint chlorination method has the best effect, is not affected by water temperature, is easy to operate, and saves investment, but the operating cost for the treatment of high-concentration ammonia nitrogen wastewater is very high
The ion exchange method has the advantages of low investment, simple process and convenient operation, but for high-concentration ammonia-nitrogen wastewater, it will cause frequent resin regeneration and cause operational difficulties, and the regeneration liquid is still high-concentration ammonia-nitrogen wastewater, which needs to be reprocessed
[0005] Therefore, a general effective method has not been found so far

Method used

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  • Recycling treatment process of high-concentration ammonia nitrogen waste water
  • Recycling treatment process of high-concentration ammonia nitrogen waste water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] a. First inject high-concentration ammonia nitrogen wastewater into the regulating tank, and homogenize in the regulating tank;

[0022] b. The effluent from the adjustment pool enters the comprehensive reactor through the wastewater lifting pump, and before entering the comprehensive reactor, add a pH modifier to adjust the pH to 10.5, and at the same time add 0.08% ammonia decomposing agent, and pump dilute lye in the comprehensive reactor Recover the heat of desorbing ammonia gas after cyclic injection with the jet pump, and at the same time fully mix the pH modifier and ammonia decomposing agent;

[0023] c. The preheated waste water is sent to the chemical packing tower through the waste water pump to control the flow rate, enters from the upper part of the tower, and is evenly distributed on the packing by the waste water distributor to transfer heat with the steam hot air rising from the bottom of the tower. The ammonia gas in the tower is in the upper part of the...

Embodiment 2

[0030] a. First inject high-concentration ammonia nitrogen wastewater into the regulating tank, and homogenize in the regulating tank;

[0031] b. The effluent from the adjustment pool enters the comprehensive reactor through the wastewater lifting pump, and before entering the comprehensive reactor, add a pH modifier to adjust the pH value to 11, and at the same time add 0.08% ammonia decomposing agent, and pump dilute lye in the comprehensive reactor Recover the heat of desorbing ammonia gas after cyclic injection with the jet pump, and at the same time fully mix the pH modifier and ammonia decomposing agent;

[0032] c. The preheated waste water is sent to the chemical packing tower through the waste water pump to control the flow rate, enters from the upper part of the tower, and is evenly distributed on the packing by the waste water distributor to transfer heat with the steam hot air rising from the bottom of the tower. The ammonia gas in the tower is in the upper part of...

Embodiment 3

[0039] a. First inject high-concentration ammonia nitrogen wastewater into the regulating tank, and homogenize in the regulating tank;

[0040] b. The effluent from the adjustment pool enters the comprehensive reactor through the wastewater lifting pump, and before entering the comprehensive reactor, add a pH modifier to adjust the pH value to 11.5, and at the same time add 0.08% ammonia decomposing agent, and pump dilute lye in the comprehensive reactor Recover the heat of desorbing ammonia gas after cyclic injection with the jet pump, and at the same time fully mix the pH modifier and ammonia decomposing agent;

[0041]c. The preheated waste water is sent to the chemical packing tower through the waste water pump to control the flow rate, enters from the upper part of the tower, and is evenly distributed on the packing by the waste water distributor to transfer heat with the steam hot air rising from the bottom of the tower. The ammonia gas in the tower is in the upper part o...

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Abstract

The invention discloses a recycling treatment process of high-concentration ammonia nitrogen waste water, which employs combination process to carry out recycling treatment on the ammonia nitrogen waste water. After being subjected to the treatment process of the invention, ammonia nitrogen in the waste water drops from 23200mg / L to 8mg / L, thus reaching national level-A emission standard, the treated waste water can be recycled and applied to landscape greening. Meanwhile, ammonia gas removed from the high-concentration ammonia nitrogen waste water, after being absorbed by an absorption tower, can recover ammonia water with concentration of above 18%-25%, thus enjoying certain economic benefits, and the higher the ammonia nitrogen concentration is in the waste water, the more obvious the economic benefits are.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a high-concentration ammonia nitrogen wastewater resource treatment process. Background technique [0002] In recent years, with the increasing urban population and the continuous development of industry and agriculture, water pollution accidents have occurred frequently, posing serious harm to humans and animals. The discharge of nitrogen and phosphorus in many lakes and reservoirs has caused water eutrophication, which seriously threatens human production, life and ecological balance. Ammonia nitrogen is one of the main factors causing water eutrophication. In order to meet the continuous improvement of the public's environmental quality requirements, the country has formulated more and more stringent discharge standards for nitrogen. Emphasis and hotspots of research in the field of pollution control engineering. [0003] Ammonia nitrogen exists in many industri...

Claims

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Application Information

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IPC IPC(8): C02F9/10C01C1/02C02F1/02C02F1/66C02F1/20
CPCY02P20/10
Inventor 唐绍明唐霓
Owner 唐绍明