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Paecilomyces variot bainier F1-23 and method for processing methanal-containing industrial wastewater by using same

A technology of Paecilomyces varostii and industrial wastewater, applied in microorganism-based methods, chemical instruments and methods, biological water/sewage treatment, etc., to achieve the effects of saving production costs, excellent genetic stability, and facilitating large-scale expansion

Active Publication Date: 2015-05-27
江苏沃德化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, it is reported that formaldehyde wastewater can be treated by aerobic (Hidalgo A., 2002. Applied Microbiology and Biotechnology. 58 (2): 260-263.) or anaerobic (Mingbo QU., 1997. Biotechnology and Bioengineering. 55 (5-6): 727-736; Omil F., 1991. Enzyme Microbiol.24 (5-6): 255-262.) for biodegradation, mainly using activated sludge to treat formaldehyde wastewater (Wang Zhihai et al., 2009. Water supply and drainage in China. 25 (1): 55-57; Xu Zhongjun et al. 2008. Journal of Environmental Engineering. 2 (9): 1174-1176; Eiroa M., 2005. Bioresource Technology. 96 (17): 1914- 1918.), and there are almost no reports on the application of microbial immobilization technology to degrade formaldehyde wastewater

Method used

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  • Paecilomyces variot bainier F1-23 and method for processing methanal-containing industrial wastewater by using same

Examples

Experimental program
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Effect test

Embodiment 1

[0055] A Paecilomyces variotii F1-23 (paecilomyces variotii F1-23), the preservation number of which is CCTCC No. M2013471.

[0056] The method of using Paecilomyces variotii to treat formaldehyde-containing industrial wastewater, inserting Paecilomyces variotii F1-23CCTCC No.M2013471 or the carrier immobilized with Paecilomyces variotii F1-23CCTCC No.M2013471 into industrial wastewater containing formaldehyde The formaldehyde in the formaldehyde-containing industrial wastewater is degraded after mixing and oscillating treatment or full contact; the content of formaldehyde in the industrial wastewater is lower than 6.0g / L.

[0057] The solid culture medium of Paecilomyces variotii F1-23CCTCC No.M2013471 is composed of the following unit mass components:

[0058] Glucose 10-30; beef extract 2-4; KCl0.5; MgSO 4 ·7H 2 O1; FeSO 4 ·7H 2 O0.1; Agar 18-20; Water 1000; pH=7.2-7.5;

[0059] The liquid culture medium of Paecilomyces variotii F1-23CCTCC No.M2013471 adopts the follow...

Embodiment 2

[0075] In this example, the cultivation of bacteria and bacteria and the pretreatment of formaldehyde-containing industrial wastewater are as in Example 1. Ten hollow fibers with a length of 10 cm (pore diameter of 0.1 μm) are bundled into a bundle and placed in the same liquid medium. Cultivate for 3-5 days under the conditions of 25°C and 180 rpm, so that Paecilomyces variotii F1-23CCTCC No.M2013471 is adsorbed on the hollow fiber, and the immobilization process is completed. In a sterile environment, cut up the hollow fiber attached with Paecilomyces variotii F1-23CCTCC No.M2013471 (biomass is about 0.1g), and fill it in a hollow column (ψ=13mm, L=10cm); The peristaltic pump injects a formaldehyde solution with a concentration of 3.725g / L into the column at a flow rate of 0.45ml / min. When the liquid flows out of the column, it contains almost no formaldehyde.

[0076] After using the above-mentioned device to treat industrial wastewater containing formaldehyde for 2 hours, ...

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Abstract

The invention belongs to field of microorganisms and application of the microorganisms, and particularly relates to paecilomyces variot bainier F1-23 and a method for processing methanal-containing industrial wastewater by using the paecilomyces variot bainier F1-23. The paecilomyces variot bainier F1-23 CCTCC No.M2013471 or a carrier fixed with the paecilomyces variot bainier F1-23 CCTCC No.M2013471 is inoculated into the methanal-containing industrial wastewater for degrading the methanal in the methanal-containing industrial wastewater after mixing and vibrating or fully contacting; after degradation, the content of methanal in the industrial wastewater is less than 6.0g / L. The method solves the problem that the existing microorganism only degrades the industrial wastewater with low concentration of methanal, and the paecilomyces variot bainier F1-23 has the advantages of having high capacity in degrading methanal, having good heredity, and degrading high concentration methanal-containing industrial wastewater through thallus fixation and circular process.

Description

technical field [0001] The invention belongs to microorganisms and their application, in particular to Paecilomyces variotii F1-23 and a method for treating formaldehyde-containing industrial waste water by using it. Background technique [0002] Formaldehyde (HCHO), an irritating and suffocating colorless gas at room temperature, is commercially available as its aqueous solution, and is one of the ten most productive chemicals in the world. Its aqueous solution is widely used as disinfection, antiseptic and fumigant in agriculture, forestry, animal husbandry, biology and medicine. Formaldehyde is harmful to the human body, mainly because formaldehyde can combine with the protein in the human body, change the internal structure of the protein and make it solidify, so it is lethal. At present, the methods for removing formaldehyde mainly include chemical reaction methods, physical adsorption technology, ozone negative ion technology, nano-photocatalysis technology, plasma te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/14C12N11/14C02F3/34C12R1/79C02F101/34
Inventor 姚璐晔吴金男冀宏徐兵邢鋆高杏顾佳佳曹叶萍
Owner 江苏沃德化工有限公司
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