Biochemical preparation and preparation method of xanthan gum production wastewater

A technology for producing waste water and xanthan gum, which is applied in chemical instruments and methods, biological water/sewage treatment, natural water treatment, etc. It can solve the problems of high density of natural non-metallic minerals, high daily operating costs, and difficult separation of solid and liquid. , to reduce the amount of sludge produced, reduce the time, and improve the adsorption effect.

Active Publication Date: 2019-05-24
内蒙古阜丰生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no mature complete set of technology applied to production practice at home and abroad.
The main problem is that the one-time investment is too large, or the daily operation cost is too high, most manufacturers cannot bear it, and have to maintain the status quo of excessive emissions for a long time
Activated carbon is widely used as an important adsorbent material because of its rich pore structure and huge specific surface area, good chemical stability and strong adsorption capacity, but its cost is high
There are also non-metallic ionic minerals such as attapulgite for adsorption, but natural non-metallic minerals have the following limitations as adsorbents: natural non-metallic minerals have high density and limited specific surface area, and the surface of natural non-metallic minerals is mostly negatively charged. And directly using natural non-metallic powder ore such as clay minerals as the adsorbent will have the problem of difficult separation of solid and liquid after adsorption
Xanthan gum can be thermally degraded with oxidizing substances at high temperature, but this method requires a lot of heat

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Biochemical preparations for treating waste water from the production of xanthan gum, the preparations including physical preparations and compound bacterial agents;

[0039] The method of using the biochemical agent to treat xanthan gum wastewater includes:

[0040] (1) After passing the grille, the xanthan gum wastewater enters the grit tank, and the sewage separated from sand and water enters the primary sedimentation tank. Through the primary sedimentation tank, it promotes the floating of grease in the wastewater and reduces the content of suspended solids;

[0041] (2) Preparation of physical adsorbent

[0042] Mix according to the mass ratio of forsterite powder, shell powder, kaolin, chitosan, and pore forming agent of 3:2:3:1:5, mix well and place in the granulator, add the mixture 22-25 % (Weight) water, granulated to obtain a spherical green body with a particle size of 3 to 5 mm; dried at 95°C for 20 hours and calcined at 1050°C for 1 hour to obtain a physical adsor...

Embodiment 2

[0060] Biochemical preparations for treating waste water from the production of xanthan gum, the preparations including physical preparations and compound bacterial agents;

[0061] The method of using the biochemical agent to treat xanthan gum wastewater includes:

[0062] (1) After passing the grille, the xanthan gum wastewater enters the grit tank, and the sewage separated from sand and water enters the primary sedimentation tank. Through the primary sedimentation tank, it promotes the floating of grease in the wastewater and reduces the content of suspended solids;

[0063] (2) Preparation of physical adsorbent

[0064] Mix according to the mass ratio of forsterite powder, shell powder, kaolin, chitosan, and pore forming agent of 3:2:3:1:5, mix well and place in the granulator, add the mixture 22-25 % (Weight) water, granulated to obtain a spherical green body with a particle size of 3 to 5 mm; dried at 95°C for 20 hours and calcined at 1050°C for 1 hour to obtain a physical adsor...

Embodiment 3

[0081] Example 3 Example of wastewater treatment effect

[0082] Take the xanthan gum fermentation wastewater from the Fufeng production workshop and enter the bottom of the kettle into the sewage treatment system according to the method in Example 1-2, and sample and determine the data of COD, ammonia nitrogen, and total nitrogen;

[0083] Compared with Example 1, the control group 1 did not add a physical adsorbent; compared with Example 1, the control group 2 did not add a composite bacterial agent. The test data of sampling and determining COD, ammonia nitrogen, SS, effluent phosphorus content and clarity are shown in Table 1:

[0084] Table 1

[0085]

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PUM

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Abstract

The invention relates to a biochemical agent for treating xanthan gum production wastewater. The biochemical agent comprises a physical agent and a composite microbial inoculant. The composite microbial inoculant comprises the following raw materials in parts by volume: 4 parts of Pseudomonas aeruginosa, 4 parts of Penicillium ochrochloron, 3 parts of Acidithiobacillus ferrooxidans, 3 parts of Bacillus amyloliquefaciens, 2 parts of Clostridium and 2 parts of Scenedesmus obliquus. The biochemical agent contains multiple microbes with favorable degradability for nondegradable pollutants; the reasonable combination of the strains has favorable degradation effects; and thus, the biochemical agent has wide application prospects.

Description

Technical field [0001] The invention relates to the field of clean production of xanthan gum in the biological fermentation industry, and specifically provides a biochemical preparation for xanthan gum production wastewater and a preparation method thereof. Background technique [0002] Xanthan gum (xanthan gum) is a neutral water-soluble polysaccharide secreted by the Northern Regional Research Laboratories (NRRL) of the US Department of Agriculture in the 1950s from Xanthom onas campestris NRRLB21459. It is called xanthan gum. It is a microbial extracellular heteropolysaccharide composed of glucose, mannose and glucuronic acid at a molar ratio of 218:2:2. Its "pentasaccharide repeating unit" main chain consists of two D-glucose molecules via β-1 , 4 glycosidic bonds are connected and have a cellulose-like skeleton structure. Each carbon bond in 2 glucose is connected with a trisaccharide side chain composed of 2 mannans and 1 glucuronic acid. The unique molecular structure of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F103/36
CPCC02F1/004C02F1/281C02F1/286C02F3/34C02F9/00C02F2001/007C02F2103/36
Inventor 杜鹏丁兆堂徐亚娟周敬高启超刘苏宜孙成菊
Owner 内蒙古阜丰生物科技有限公司
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