Composite ammonia nitrogen removal agent and using method thereof

A technology of removing agent and ammonia nitrogen, which is applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of difficult acquisition, high cost, and long cycle, and achieve simple preparation method, The effect of low operating cost and short response time

Inactive Publication Date: 2013-03-20
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in the prior art, the auxiliary agent used for the removal of ammonia nitrogen in industrial wastewater has poor denitrification effect, long cycle, high cost, and difficult to obtain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh 63.83% of nano-iron particles and polyethylene glycol 200:36.17% according to the mass ratio, which is the composite ammonia nitrogen removal agent. Put the above-mentioned ammonia nitrogen remover into industrial wastewater at a concentration of 0.1567g / L, mix evenly, and the treatment time is 60 minutes. Use the above method to treat industrial wastewater with an ammonia nitrogen content of 1000mg / L, and the ammonia nitrogen removal rate reaches 99.99%; the treatment content When the industrial wastewater is 2000mg / L, the removal rate can reach 93.72%.

Embodiment 2

[0016] Take by weighing nano-iron particles: 67.66%, 32.34% of isooctanol by mass ratio, which is the composite ammonia nitrogen remover, and the above-mentioned ammonia nitrogen remover is dropped into industrial waste water with a concentration of 0.1478g / L, mixed evenly, and the treatment time is In 100 minutes, when the above method is used to treat industrial wastewater with a content of 2000mg / L, the removal rate can reach 93.26%.

Embodiment 3

[0018] Weigh nano-iron particles: 53.06%, polyethylene glycol 200: 46.94% by mass ratio, which is the composite ammonia nitrogen removal agent, put the above ammonia nitrogen removal agent into the industrial waste water with a concentration of 0.19g / L, mix evenly, The treatment time is 100 minutes, and the above method is used to treat industrial wastewater with an ammonia nitrogen content of 1000mg / L, and the ammonia nitrogen removal rate reaches 98.45%.

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Abstract

The invention provides a composite ammonia nitrogen removal agent. The composite ammonia nitrogen removal agent comprises the following components by weight percent: 53-86 percent of nano particles and 14-47 percent of organic alcohols. The 0.11-0.19g/L composite ammonia nitrogen removal agent is put into waste water to be uniformly mixed, so that the ammonia nitrogen removal agent can be used for sewage treatment. By the removal agent, the ammonia nitrogen in ammonia nitrogen waste water with high concentration can be effectively removed, and the removal rate is up to 92-99.99 percent; and moreover, the composite ammonia nitrogen removal agent is low in operation cost, easy to acquire, low in gas-liquid ratio and short in reaction time.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a removing agent for removing ammonia nitrogen in waste water and a use method thereof. Background technique [0002] Ammonia nitrogen mainly comes from urban domestic sewage and industrial wastewater. The low concentration of ammonia nitrogen in urban domestic sewage can meet the discharge requirements through appropriate biochemical treatment. The concentration of ammonia nitrogen in industrial wastewater is high, not only from a wide range of sources, but also in the ammonia nitrogen content of wastewater discharged from different types of factories. High-concentration ammonia nitrogen wastewater mainly comes from waste water discharged from industries such as petrochemical, non-ferrous metal chemical metallurgy, fertilizer, monosodium glutamate, meat processing and breeding, and landfill leachate. Ammonia nitrogen is an important factor causing water eutrophication. Due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/58
Inventor 冯俊生赵丽华
Owner CHANGZHOU UNIV
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