Environmental protection process for treating xanthan gum fermentation wastewater

A technology for fermenting wastewater and xanthan gum, applied in filtration treatment, sedimentation treatment, water/sewage treatment, etc., can solve the problems of large amount of bacterial agent used, limited specific surface area, difficult separation of solid and liquid, etc., and achieve bacterial adhesion. Strong, large specific surface area, the effect of reducing output

Active Publication Date: 2017-06-23
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

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
The applicant group co...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Get the xanthan gum fermentation waste water of Fufeng workshop, adopt following steps:

[0033] A. Natural settlement

[0034] The xanthan gum fermentation waste water flows through the multi-grid, the grid gap of the multi-grid gradually decreases, then it is discharged into the settling tank, and then the adsorbent is added, and the adsorbent is added to the Into the sewage, blow into the air, and then carry out the sedimentation treatment to obtain the supernatant of the industrial wastewater;

[0035] The adsorbent is prepared by mixing shell powder, granite, and polyferric sulfate at a mass ratio of 5:4:1;

[0036] B. Hydrolytic acidification anaerobic biochemical treatment

[0037] First discharge the industrial wastewater supernatant described in step A into an acid-base adjustment tank, adjust the pH to 4, and then discharge it into a hydrolytic acidification tank for anaerobic biochemical treatment by hydrolysis and acidification to obtain industrial wastewa...

Embodiment 2

[0051] Get the xanthan gum fermentation waste water of Fufeng workshop, adopt following steps:

[0052] A. Natural settlement

[0053] The xanthan gum fermentation waste water flows through the multi-grid, the grid gap of the multi-grid gradually decreases, then it is discharged into the settling tank, and then the adsorbent is added, and the adsorbent is added to the Into the sewage, blow into the air, and then carry out the sedimentation treatment to obtain the supernatant of the industrial wastewater;

[0054] The adsorbent is prepared by mixing shell powder, granite, and polyferric sulfate at a mass ratio of 5:4:1;

[0055] B. Hydrolytic acidification anaerobic biochemical treatment

[0056] First discharge the supernatant of the industrial wastewater described in step A into the acid-base adjustment tank, adjust the pH to 6, and then discharge it into the hydrolytic acidification tank for hydrolytic acidification anaerobic biochemical treatment, that is, obtain the indu...

Embodiment 3

[0069] Embodiment 3 Treatment example of waste water effect

[0070] Take the xanthan gum fermentation waste liquid in Fufeng production workshop as an example (COD is 4360mg / L, ammonia nitrogen 289.5mg / L, sulfide 310mg / L), taking the method in Example 1 as an example, sampling and measuring COD, ammonia nitrogen, sulfide and set up a control group to detect the compatibility effect of each strain in the bacterial agent:

[0071] Control group 1: do not add bacillus licheniformis, all the other are the same as embodiment 1;

[0072] Control group 2: without adding Alcaligenes faecalis, the rest are the same as in Example 1;

[0073] Control group 3: without adding Candida albicans, the rest are the same as in Example 1;

[0074] Control group 4: do not add cellulomonas, all the other are the same as embodiment 1;

[0075] Contrast 5 groups: do not add the adsorbent of step A, all the other are the same as embodiment 1.

[0076] The specific test results are shown in Table ...

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PUM

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Abstract

The invention relates to an environmental protection process for treating xanthan gum fermentation wastewater. The environmental protection process comprises the following steps: xanthan gum industrial wastewater flows through a plurality of grids and is discharged into a sedimentation tank, the grid gaps of a plurality of the grids are gradually reduced, then an adsorbent is added to wastewater according to the adding amount which is 0.5kg per ton of wastewater to perform settlement treatment, and then anaerobic biochemical treatment-bioremediation through hydrolytic acidification. The bioremediation preparation disclosed by the application of the invention can improve the water treatment capacity and the treatment water quality to reduce the operation cost and promote the standardized discharge, and can further reduce the sludge production, is beneficial to the removal of pollutants such as COD and ammonia nitrogen in waste liquid, and has good application prospects.

Description

technical field [0001] The invention relates to the field of wastewater treatment in the biological fermentation industry, and specifically discloses an environmentally friendly process for treating xanthan gum fermentation wastewater. Background technique [0002] Xanthan gum fermentation wastewater is derived from several processes in the xanthan gum fermentation and extraction process. There are no toxic and harmful substances in the low-concentration wastewater. It is mainly the wastewater discharged from the rectification tower after recovering alcohol and equipment cleaning wastewater. The main pollutants are unused organic matter such as starch and protein. The composition of xanthan gum fermentation wastewater is relatively complex, mainly containing inorganic salts and a certain amount of sugars and small organic molecules. Most of them are bio-glue, which is a cellulose-like glue. Its structure is relatively stable, it is difficult to decompose, and biochemical ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/34
CPCC02F1/001C02F1/281C02F1/66C02F3/28C02F3/34C02F9/00C02F2001/007C02F2103/34
Inventor 王均成刘海涛卢松李晓永杜鹏王彦妮位风宇梁晓娟
Owner 内蒙古阜丰生物科技有限公司
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