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Total nitrogen remover

A nitrogen removal and concentration technology, applied in water treatment parameter control, special compound water treatment, water/sludge/sewage treatment, etc., can solve the problems of excessive TN in the effluent and low denitrification removal rate, and achieve the effect of improving the effect.

Inactive Publication Date: 2020-04-17
LIAONING XINLONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The total nitrogen remover solves the technical problem of low denitrification removal rate due to insufficient carbon source by supplementing the carbon source required by various microorganisms and supplementing the amino acids necessary for microorganisms, which leads to excessive TN in the effluent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Get concentration is 0.22kg of 25% sodium acetate solution, concentration is 0.2kg of 35% glucose solution, concentration is 0.05kg of xylitol solution of 65%, flour 0.01kg, concentration is 50% molasses solution 0.19kg, catalyst 0.07kg dissolves respectively In 1 kg of water at a temperature of 40°C, mix evenly, stir for 25 minutes to obtain a mixed solution, and then add 0.01 kg of microorganisms to the above mixed solution, mix thoroughly again, and stand for 5 hours to obtain a total nitrogen remover solution.

[0018] The experimental results are as follows:

[0019] index COD (mg / L) Ammonia nitrogen (mg / L) TN (mg / L) flooded 400 19 40 Untreated water 35 0.7 25 water after administration 18 0.5 11

Embodiment 2

[0021] Getting concentration is 0.25kg of 25% sodium acetate solution, 0.23kg of 35% glucose solution, 0.07kg of 65% xylitol solution, 0.02kg of flour, 0.21kg of 50% molasses solution, and 0.1kg of catalyst are dissolved respectively In 1 kg of water at a temperature of 42°C, mix evenly, stir for 28 minutes to obtain a mixed solution, and then add 0.03 kg of microorganisms to the above mixed solution, mix thoroughly again, and leave for 5 hours to obtain a total nitrogen remover solution.

[0022] The experimental results are as follows:

[0023] index COD (mg / L) Ammonia nitrogen (mg / L) TN (mg / L) flooded 400 19 40 Untreated water 35 0.7 25 water after administration 16 0.4 9.8

Embodiment 3

[0025] Getting concentration is 0.24kg of 30% sodium acetate solution, concentration is 0.22kg of 40% glucose solution, concentration is 0.06kg of xylitol solution of 65%, flour 0.02kg, concentration is 55% molasses solution 0.2kg, catalyst 0.08kg dissolves respectively In 1 kg of water at a temperature of 38° C., mix evenly, stir for 30 minutes to obtain a mixed solution, and then add 0.03 kg of microorganisms to the above mixed solution, mix thoroughly again, and stand for 6 hours to obtain a total nitrogen remover solution.

[0026] The experimental results are as follows:

[0027] index COD (mg / L) Ammonia nitrogen (mg / L) TN (mg / L) flooded 400 19 40 Untreated water 35 0.7 25 water after administration 16 0.5 10.5

[0028] Technical principle:

[0029] Since the sewage contains a large amount of nitrogen compounds and less organic matter, in this case, the carbon-to-nitrogen ratio cannot satisfy the reproduction of nitrifying bacte...

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Abstract

The invention provides a total nitrogen remover prepared by the following steps: preparing 20-23 parts of a glucose solution with the concentration of 35-45%, 22-25 parts of a sodium acetate solutionwith the concentration of 25%-35%, 19-21 parts of a molasses solution with the concentration of 50%-60%, 20% of an ethanol solution with the concentration of 90-95%, and 5-7 parts of a xylitol solution with the concentration of 65%; then adding 1-2 parts of flour and a raw material composed of 7-10 parts of a catalyst and 1-3 parts of microorganisms, respectively dissolving the following raw materials in water at the temperature of 35-42 DEG C, uniformly mixing, and stirring for 25-30 min to obtain a mixed solution for standing; adding microorganisms into the standing solution, fully mixing, and standing for 5-6 hours to obtain a total nitrogen remover solution. The carbon sources required by various microorganisms are supplemented, and the amino acids required by the microorganisms are supplemented, so that the microorganisms can maintain good absorption, development, propagation and activity, the nitrogen removal effect of the sewage is improved while the phosphorus removal is not affected, and the conversion rate from COD to BOD is increased to about 85%. The total nitrogen remover is suitable for being used as a sewage total nitrogen remover.

Description

technical field [0001] The invention proposes a medicament in the field of sewage treatment, specifically a total nitrogen remover. Background technique [0002] In the sewage that needs to be denitrified, the denitrification removal rate is often low due to insufficient carbon sources, resulting in excessive TN in the effluent. Therefore, adding carbon sources has become the only practical means at present. The current carbon sources generally include methanol and sodium acetate. , flour, glucose, etc. As a chemical agent, methanol has a relatively high cost: the response time is slow, and methanol cannot be utilized by all microorganisms. After adding methanol, it needs a certain adaptation period until it is perfectly enriched and exerts its full effect. Therefore, when used in sewage In addition, methanol has a certain toxic effect, and long-term use of methanol as a carbon source will also have a certain impact on the discharge of tail water. Although sodium acetate c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/02C02F101/16
CPCC02F3/02C02F3/34C02F2101/16C02F2209/16C02F2305/06Y02W10/10
Inventor 李绍宽杨红赵鹏李泽群魏楚轩李冰陈旭东
Owner LIAONING XINLONG TECH