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Ammonia-nitrogen wastewater treatment agent and preparation method thereof

A technology of ammonia nitrogen wastewater and treatment agent, which is applied in animal husbandry wastewater treatment, water/sewage treatment, special compound water treatment, etc. It can solve the problem of increasing microbial treatment load and impact load, increased treatment cost and operating cost, and anaerobic effluent Solve the problems of high pollutant concentration and achieve the effect of improving ammonia nitrogen removal adsorption performance, high ion exchange performance, and increasing exchange capacity

Inactive Publication Date: 2021-04-02
ZHENJIANG HEYUN IND WASTEWATER DISPOSAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At home and abroad, anaerobic-aerobic technology is mainly used for treatment. Although anaerobic treatment can degrade organic pollutants in wastewater to a large extent, the concentration of anaerobic effluent pollutants is still high, especially ammonia nitrogen is basically not removed.
For the treatment of pig farm wastewater anaerobic digestion liquid, biological nitrification and denitrification are the most widely used. Although nitrifying bacteria and denitrifying bacteria can be used to convert nitrogen-containing organic matter and ammonia in wastewater into nitrogen and remove them, high concentrations of organic matter and ammonia nitrogen It usually increases the treatment load and impact load of microorganisms, resulting in poor wastewater treatment effect
In actual engineering, in order to improve the removal effect of ammonia nitrogen, alkalinity or carbon source is usually supplemented in the process of denitrification and denitrification, which increases the treatment cost and operating cost

Method used

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  • Ammonia-nitrogen wastewater treatment agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0030] Weigh the zeolite particles, mix the zeolite particles and the dopamine solution with a mass fraction of 0.1% according to the mass ratio of 1:10, put them into the reactor, stir and react at a speed of 200r / min for 10h, and filter and separate to obtain the filter residue after the reaction;

[0031] The filter residue obtained above is mixed again with deionized water at a mass ratio of 1:15, stirred and dispersed to obtain a suspension and put into a reactor, and then a calcium chloride solution of 5% of the suspension mass is added to the reactor to 100r / min rotating speed stirring reaction 30min, after the stirring reaction is finished, filter and separate to obtain filter cake;

[0032]Then mix the filter cake obtained above and the sodium silicate solution with a mass fraction of 10% at a mass ratio of 1:8 and put it into the reactor, raise the temperature in the reactor to 40°C, and stir at a speed of 50r / min React for 1 hour, after the reaction is completed, fi...

example 2

[0037] Weigh the zeolite particles, mix the zeolite particles and the dopamine solution with a mass fraction of 0.1% according to the mass ratio of 1:10, put them into the reactor, stir and react at a speed of 250r / min for 11h, and filter and separate to obtain the filter residue after the reaction;

[0038] The filter residue obtained above is mixed again with deionized water at a mass ratio of 1:15, stirred and dispersed to obtain a suspension and put into a reactor, and then a calcium chloride solution of 5% of the suspension mass is added to the reactor to The rotating speed of 150r / min stirred and reacted for 35min, and after the stirred reaction was completed, the filter cake was obtained by filtration and separation;

[0039] Then mix the filter cake obtained above and the sodium silicate solution with a mass fraction of 10% at a mass ratio of 1:8 and put it into the reactor, raise the temperature in the reactor to 45°C, and stir at a speed of 55r / min After reacting for...

example 3

[0044] Weigh the zeolite particles, mix the zeolite particles and the dopamine solution with a mass fraction of 0.1% according to the mass ratio of 1:10, put them into the reactor, stir and react at a speed of 300r / min for 12h, and filter and separate to obtain the filter residue after the reaction;

[0045] The filter residue obtained above is mixed again with deionized water at a mass ratio of 1:15, stirred and dispersed to obtain a suspension and put into a reactor, and then a calcium chloride solution of 5% of the suspension mass is added to the reactor to The rotating speed of 200r / min stirred and reacted for 40min, and after the stirring and reacted, the filter cake was obtained by filtration and separation;

[0046] Then mix the filter cake obtained above and the sodium silicate solution with a mass fraction of 10% at a mass ratio of 1:8 and put it into the reactor, raise the temperature in the reactor to 50°C, and stir at a speed of 60r / min React for 2 hours, after the...

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Abstract

The invention relates to an ammonia-nitrogen wastewater treatment agent and a preparation method thereof, and belongs to the technical field of industrial wastewater treatment. According to the invention, natural zeolite is used as a raw material, calcium silicate synapses are deposited on the surface of the natural zeolite to form surface-modified zeolite particles, then the zeolite particles anda microorganism enrichment culture solution are mixed, and finally, microorganisms with a flocculation function are loaded to obtain the ammonia-nitrogen wastewater treatment agent.

Description

technical field [0001] The invention relates to an ammonia nitrogen wastewater treatment agent and a preparation method thereof, belonging to the technical field of industrial wastewater treatment. Background technique [0002] At present, pig farm wastewater contains high concentrations of organic matter and ammonia nitrogen, which is a type of organic wastewater that is difficult to treat. At home and abroad, anaerobic-aerobic technology is mainly used for treatment. Although anaerobic treatment can degrade organic pollutants in wastewater to a large extent, the concentration of anaerobic effluent pollutants is still high, especially ammonia nitrogen is basically not removed. . For the treatment of pig farm wastewater anaerobic digestion liquid, biological nitrification and denitrification are the most widely used. Although nitrifying bacteria and denitrifying bacteria can be used to convert nitrogen-containing organic matter and ammonia in wastewater into nitrogen and re...

Claims

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Application Information

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IPC IPC(8): C02F3/34C12N1/20C12N11/14C02F101/16C02F103/20C02F101/30C12R1/07
CPCC02F3/34C02F1/281C02F1/52C12N1/20C12N11/14C02F2101/16C02F2103/20C02F2101/30C02F2305/06
Inventor 许怡赵先辉侯敬义
Owner ZHENJIANG HEYUN IND WASTEWATER DISPOSAL CO LTD
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