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Microbial activity promoter and using method thereof

A technology of microbial activity and accelerator, applied in the field of microbial activity accelerator, can solve the problems of poor mass transfer efficiency of hydrophobic substances and low biodegradation efficiency, etc.

Pending Publication Date: 2019-08-13
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of accelerant and its application method for strengthening the hydrophobicity of biological purification, refractory organic matter, which can effectively solve the problem of poor mass transfer efficiency and biodegradation of hydrophobic substances in the biodegradation system existing in the background technology. The problem of inefficiency

Method used

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  • Microbial activity promoter and using method thereof
  • Microbial activity promoter and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Application of microbial activity accelerator in UASB reactor for phenol wastewater treatment.

[0022] By component: rhamnolipid 150mg / L, ZnCl 2 5mg / L, Sodium Selenite Vitamin E Injection 4mg / L, K 2 HPO 4 10.5g / L, KH 2 PO 4 4.5g / L, (NH 4 ) 2 SO 4 1.0g / L is formulated as a liquid microbial activity accelerator.

[0023] The measured phenol concentrations in four different UASB reaction pools were 250mg / L, 500mg / L, 750mg / L, and 1000mg / L, respectively. In this embodiment, the microbial activity accelerator is added to the microbial treatment unit. After calculation, the mass percentage of the microbial activity accelerator is 5% of the mass concentration of phenol.

[0024] After the UASB reaction pool was running stably, samples were taken and measured respectively. The concentrations of phenol in the four different reaction pools are shown in Table 1:

[0025] Table 1

[0026]

[0027] It can be seen from Table 1 that after adding the microbial activity acc...

Embodiment 2

[0029] The microbial activity accelerator is applied to the m-dichlorobenzene waste gas (130mg / m3) prepared by the biological trickling tower treatment laboratory 3 ).

[0030] By component: rhamnolipid 150mg / L, ZnCl 2 5mg / L, Sodium Selenite Vitamin E Injection 4mg / L, K 2 HPO 4 10.5g / L, KH 2 PO 4 4.5g / L, (NH 4 ) 2 SO 4 1.0g / L is formulated as a liquid microbial activity accelerator.

[0031] The performance of two biotrickling filter towers without and with microbial activity promoters in the treatment of m-dichlorobenzene waste gas was compared. After inoculation of m-dichlorobenzene-degrading dominant bacteria, no microbial activity accelerator was added in tower 1, and the residual gas concentration of m-dichlorobenzene was measured every 5 days. The concentration of m-dichlorobenzene in each unit time is 117.5mg / m 3 , 106.35mg / m 3 , 81.94mg / m 3 , 73.39mg / m 3 , 64.92mg / m 3 and 57.74mg / m 3 . That is, the removal rates of m-dichlorobenzene were 9.61%, 18.19%, ...

Embodiment 3

[0033] Application of microbial activity accelerator to trickling filter tower facility to treat toluene waste gas (1000mg / m 3 ).

[0034] By component: rhamnolipid 150mg / L, ZnCl 2 5mg / L, K 2 HPO 4 10.5g / L, KH 2 PO 4 4.5g / L, (NH 4 ) 2 SO 4 1.0g / L modulation microbial activity accelerator A1.

[0035] By component: rhamnolipid 150mg / L, sodium selenite vitamin E injection 4mg / L, K 2 HPO 4 10.5g / L, KH 2 PO 4 4.5g / L, (NH 4 ) 2 SO 4 1.0g / L modulation microbial activity accelerator A2.

[0036] By component: rhamnolipid 150mg / L, ZnCl 2 5mg / L, Sodium Selenite Vitamin E Injection 4mg / L, K 2 HPO 4 10.5g / L, KH 2 PO 4 4.5g / L, (NH 4 ) 2 SO 4 1.0g / L modulation microbial activity promoter A3.

[0037] The toluene-degrading dominant bacteria were inoculated in the biotrickling filter tower, and the removal effect of toluene was compared in the four biotrickling filter towers without adding microbial activity accelerators and adding microbial activity accelerators A1, ...

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Abstract

The invention relates to a microbial activity promoter. The microbial activity promoter comprises, by weight, 150-300 parts of rhamnolipid, 1-5 parts of ZnCl2 and / or 1-5 parts of a sodium selenite vitamin E injection, 10000-11000 parts of K2HPO4, 4000-5000 parts of KH2PO4 and 900-1100 parts of (NH4)2SO4. The invention also provides a using method of the microbial activity promoter. The method comprises the following steps that S1, the content of organic matter, needing to be removed by biological treatment equipment in unit time, in wastewater or waste gas is calculated, and the microbial activity promoter is added according to the mass percentage of 3-5%; S2, the microbial activity promoter is uniformly added into a wastewater or waste gas microbial treatment device. The microbial activity promoter can effectively solve the problems of poor mass transfer efficiency and low biodegradation efficiency of hydrophobic substances in a biodegradation system in the prior art.

Description

technical field [0001] The invention relates to the technical field of biological growth promoters, in particular to a microbial activity accelerator for improving the efficiency of biological purification of hydrophobic and refractory organic matter and a method for using the accelerator to improve the efficiency of biological purification of hydrophobic and refractory organic matter. Background technique [0002] Due to the toxicity, volatility, and structural stability of organic pollutants, my country's emission standards for various organic pollutants are becoming more and more stringent. The degradation pathways of organic pollutants generally include photodegradation, chemical degradation and biological degradation. With the development of technology, many new green treatment technologies have emerged in both the field of sewage treatment and the field of VOCs waste gas treatment. Membrane technology has appeared in sewage treatment, but due to the high technical requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34B01D53/84B01D53/44C02F101/30
CPCB01D53/84B01D2257/708C02F3/34C02F2101/30C02F2305/06Y02A50/20
Inventor 杨百忍李悦顾於凡杨帅陈爱辉丁成李朝霞许琦
Owner YANCHENG INST OF TECH
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