A kind of preparation method of compound bacterial agent for treating pvb resin production wastewater and treatment method of pvb resin production wastewater
A technology for producing wastewater and compound bacterial agents, which is applied in the directions of microorganism-based methods, biochemical equipment and methods, chemical instruments and methods, etc., which can solve the problem of inability to meet the needs of large-scale production enterprises for wastewater treatment, low biochemical treatment efficiency, and equipment cost. Expensive and other problems, to achieve the effect of shortening wastewater treatment time, eliminating chemical processes, and reducing equipment costs
Active Publication Date: 2022-01-11
浙江台州秀川科技有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This treatment method has the following disadvantages: 1. The chemical process adopted by the advanced oxidation is complicated, and the required equipment is expensive, resulting in high treatment costs; 2. The advanced oxidation introduces octanol, octenal and other organic substances and electrolytic waste liquid , causing secondary pollution to wastewater; 3. The efficiency of follow-up biochemical treatment is not high, and the general biochemical residence time reaches 90h, which cannot meet the wastewater treatment needs of large-scale production enterprises
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] The present invention will be further explained below in conjunction with specific examples.
[0034] The present embodiment provides a kind of preparation method of processing PVB resin production waste water with composite bacterial agent, specifically comprises the following steps:
[0035] 101) Collecting activated sludge from the aerobic pool for processing alcohol and aldehyde production sewage;
[0036] 102) making solid culture medium and liquid culture medium respectively with butyraldehyde collocation nutrient substance;
[0037] 103) The activated sludge is resuspended and applied to the solid medium for culture to obtain multiple single clones, and then the single clones are transferred to the liquid medium for separate culture, and the growth of the strain is screened out. Bacterial liquid whose speed meets the requirements;
[0038] 104) adjusting the pH value of PVB resin production wastewater, and adding nutrients to make wastewater culture medium;
...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| absorbance | aaaaa | aaaaa |
| absorbance | aaaaa | aaaaa |
Login to View More
Abstract
The invention belongs to the technical field of sewage treatment, aims to solve the shortcomings of the existing PVB resin production wastewater treatment process complex, high cost and low efficiency, and discloses a preparation method of a composite bacterial agent for treating PVB resin production wastewater and PVB resin production wastewater processing method. Through the rapid and directed screening of butyraldehyde medium and waste water medium, the bacteria that have good tolerance to butyraldehyde and are resistant to COD Cr The strains with high degradation efficiency can be used to obtain a composite bacterial agent with good degradation effect on PVB resin production wastewater by adding auxiliary growth microorganisms, expanding culture and strain domestication. Using this composite bacterial agent, only the PVB resin production wastewater needs to be treated Simple pretreatment can be used for biochemical treatment. Compared with the traditional advanced oxidation-biochemical treatment method, the wastewater treatment time is greatly shortened and the cost of wastewater treatment is reduced.
Description
technical field [0001] The invention belongs to the technical field of biochemical sewage treatment, and in particular relates to a preparation method of a composite bacterial agent for treating wastewater produced by PVB resin and a method for treating wastewater produced by PVB resin. Background technique [0002] The main reaction of polyvinyl butyral (PVB) resin production is the condensation reaction of n-butyraldehyde and polyvinyl alcohol (PVA) under the catalysis of hydrochloric acid. Aldehydes and macromolecular organic compounds such as PVB and PVA. After testing, the effect of butyraldehyde on COD Cr The contribution rate reaches 60%-80%, which is the main source of pollution and odor. Butyraldehyde has high biological toxicity, and when its mass concentration exceeds 100mg / L, it has a biochemical inhibitory effect on microorganisms. Traditional biochemical preparations cannot be directly used for PVB resin production wastewater treatment. [0003] The existing...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C12N1/20C12R1/07C12R1/13C12R1/38C12R1/01
CPCC12N1/20C02F3/34C02F3/348
Inventor 胡殿国刘鹏程苏悦王开彬夏雨张文武
Owner 浙江台州秀川科技有限公司