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A kind of high-efficiency denitrification microbial bacterial agent rapid film-hanging method

A film-hanging method and microbial technology, applied in the field of water treatment, can solve the problems of low impact load resistance, complicated operation, poor adhesion, etc., and achieve the effect of increasing the amount of fixation, simple method, and easy operation

Active Publication Date: 2020-05-01
BLUESTAR LEHIGH ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the shortcomings of existing biological denitrification microorganisms such as long time for film formation, poor adhesion, complicated operation, low biomass, and low impact load resistance, and provides a method for rapid film formation with high-efficiency denitrification microbial agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, a method for fast film-forming of highly efficient denitrification microorganisms. The method uses an aerobic nitrification reactor to form a film. The specific method is as follows: artificially simulated wastewater is added to the aerobic nitrification reactor every 1d, and the temperature of the reactor is controlled. , dissolved oxygen, and pH, until the amount of wastewater accounts for 30% of the aerobic nitrification reactor, in which the artificially simulated wastewater controls the concentration of ammonia nitrogen to 50mg / L; the high-concentration microorganisms with a concentration of suspended matter in the bacterial liquid of 3000mg / L pass through the external circulation pipeline Entering the aerobic nitrification reactor from the top, a solid-liquid flow from top to bottom is formed in the biological filler area; at the same time, the bubbles formed by microporous aeration form a gaseous flow from bottom to top in the biological filler area. Th...

Embodiment 2

[0028] Example 2, a method for fast film-forming of highly efficient denitrification microorganisms. The method uses an aerobic nitrification reactor to form a film. The specific method is as follows: artificially simulated wastewater is added to the aerobic nitrification reactor every 2 days, and the temperature of the reactor is controlled. , dissolved oxygen, and pH until the amount of wastewater accounts for 50% of the aerobic nitrification reactor, in which the artificially simulated wastewater controls the concentration of ammonia nitrogen to 150mg / L; the high-concentration microorganisms with a suspended solid concentration of 5000mg / L pass through the external circulation pipeline Entering the aerobic nitrification reactor from the top, a solid-liquid flow from top to bottom is formed in the biological filler area; at the same time, the bubbles formed by microporous aeration form a gaseous flow from bottom to top in the biological filler area. The zone is fully mixed to...

Embodiment 3

[0029]Embodiment 3, in a kind of high-efficiency denitrification microbe fast membrane-hanging method described in embodiment 1 or 2, adopt the following method to carry out actual wastewater operation: in the aerobic nitrification reactor, add the actual ammonia nitrogen-containing wastewater continuously and run for 7d, the ammonia nitrogen concentration 100mg / L, until the removal rate of ammonia nitrogen in the effluent continuously exceeds 95% for 7 days.

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Abstract

The invention relates to a rapid film forming method of an efficient denitrifying microbial agent. According to the rapid film forming method, a biological filler is added into an aerobic nitrification reactor, and active sludge is inoculated into the aerobic nitrification reactor; artificial simulated wastewater is added every 1-2 days, the temperature, the dissolved oxygen and the pH value of the reactor are controlled, and high-concentration microorganisms enter the aerobic nitrification reactor from the top portion through an external circulation pipeline and form a solid-liquid flow from top to bottom in the biological filler area; and gas bubbles formed through micro-pore aeration form a gas-stage flow from bottom to top in the biological filler area, the three materials are completely mixed in the biological filler area to form a fluidized state, and the denitrifying microorganisms are attached on the surface of the biological filler or grow to gradually form the microbial aggregate. With the method of the present invention, the defects of long time consumption, poor adhesion, complex operation, low biomass and poor impact load resistance of the film forming of the denitrifying microorganisms can be completely solved, the attachment of the nitrifying bacteria can be improved, the film forming is fast, and the resistance to the external environment change and the impact load resistance can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and relates to a method for quickly forming a film with a high-efficiency denitrification microbial bacterial agent. Background technique [0002] In the current ammonia nitrogen wastewater treatment technology, the activated sludge process is widely used. It has the advantages of large processing capacity, high processing efficiency and good effluent quality. Its various deformation processes have good nitrogen and phosphorus removal performance. It has been widely used in the treatment, but its disadvantages are that it is difficult to obtain high denitrification microbial biomass and low nitrification efficiency in the activated sludge system, resulting in weak impact resistance of the autotrophic microbial denitrification system, incomplete nitrification, and the need for Larger floor area and higher infrastructure investment, and more difficult operation, maintenance and management. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F3/02C02F3/10C02F101/16
CPCC02F3/02C02F3/10C02F3/103C02F3/104C02F3/106C02F3/34C02F2101/16C02F2203/004C02F2209/02C02F2209/06C02F2209/22C02F2305/06Y02W10/10
Inventor 张彬彬田凤蓉崔庆兰刘娟王强王克云杨志林董自斌
Owner BLUESTAR LEHIGH ENG INST CO LTD
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