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Method for preparing carbon source for biological denitrification by utilizing sugary waste liquid

A biological denitrification and waste liquid technology, applied in chemical instruments and methods, water treatment of special compounds, water/sludge/sewage treatment, etc., can solve the problem of product commercialization, productization, and waste molasses Transformation and other issues, to achieve the effect of increasing the amount of fermentation products, increasing the fermentation speed, and high content of active ingredients

Inactive Publication Date: 2019-09-27
宜兴禹博治环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this application uses waste molasses as a carbon source, there are the following problems: it has not been commercialized; the organic matter in the waste molasses has not been transformed to improve the effective utilization of carbon sources
[0006] Therefore, there are still the following technical gaps in the preparation of carbon sources from sugar-containing waste liquid: 1) the waste is not transformed to increase the content of high-efficiency carbon source components to increase the efficiency of carbon sources; 2) the commercialization of products has not been achieved

Method used

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  • Method for preparing carbon source for biological denitrification by utilizing sugary waste liquid
  • Method for preparing carbon source for biological denitrification by utilizing sugary waste liquid
  • Method for preparing carbon source for biological denitrification by utilizing sugary waste liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Preparation method of Saccharomyces cerevisiae culture medium

[0033] Each 1L of Saccharomyces cerevisiae culture solution is made from the following components:

[0034]

[0035] After mixing the above components, adjust the pH value of the Saccharomyces cerevisiae culture solution to 4.8 with a sulfuric acid solution with a volume concentration of 10%, and then use high-pressure steam sterilization to sterilize the Saccharomyces cerevisiae culture solution at a temperature of 120° C. for 15 minutes. Bacteria to obtain the described Saccharomyces cerevisiae culture fluid for subsequent use.

[0036] 2. A method for preparing a carbon source for biological denitrification from sugar-containing waste liquid

[0037] S1. Preparation of biological carrier: take dried orange peel or fresh orange peel, cut it into strips with a length of 7.5mm, and then sterilize it at 120°C for 15 minutes to prepare the biological carrier for use ;

[0038] S2. Fixation of Sacchar...

Embodiment 2

[0041] 1. Preparation method of Saccharomyces cerevisiae culture medium

[0042] Each 1L of Saccharomyces cerevisiae culture solution is made from the following components:

[0043]

[0044] After mixing the above components, adjust the pH value of the Saccharomyces cerevisiae culture solution to 4.5 with a sulfuric acid solution with a volume concentration of 8%, and then use high-pressure steam sterilization to sterilize the Saccharomyces cerevisiae culture solution at a temperature of 110° C. for 20 minutes. Bacteria to obtain the described Saccharomyces cerevisiae culture fluid for subsequent use.

[0045] 2. A method for preparing a carbon source for biological denitrification from sugar-containing waste liquid

[0046] S1. Preparation of biological carrier: take dried orange peel or fresh orange peel, cut it into strips with a length of 10mm, and then sterilize it at 110°C for 20 minutes to prepare the biological carrier for use;

[0047] S2. Fixation of Saccharomyces...

Embodiment 3

[0050] 1. Preparation method of Saccharomyces cerevisiae culture medium

[0051] Each 1L of Saccharomyces cerevisiae culture solution is made from the following components:

[0052]

[0053] After mixing the above components, adjust the pH value of the Saccharomyces cerevisiae culture solution to 5 with a sulfuric acid solution with a volume concentration of 12%, and then use high-pressure steam sterilization to sterilize the Saccharomyces cerevisiae culture solution at a temperature of 130° C. for 10 minutes. Bacteria to obtain the described Saccharomyces cerevisiae culture fluid for subsequent use.

[0054] 2. A method for preparing a carbon source for biological denitrification from sugar-containing waste liquid

[0055] S1. Preparation of biological carrier: take dried orange peel or fresh orange peel, cut it into strips with a length of 5mm, and then sterilize it at 130°C for 10 minutes to prepare the biological carrier for use;

[0056] S2. Fixation of Saccharomyces...

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Abstract

The invention provides a method for preparing a carbon source for biological denitrification by utilizing sugary waste liquid. The method provided by the invention comprises three steps of preparation of a biological carrier, fixation of saccharomyces cerevisiae and preparation of the carbon source for biological denitrification; the biological carrier adopted by the method is orange peel, and abundant nutritious substances of the orange peel enable the saccharomyces cerevisiae fixed thereon to be propagated when carbohydrate is fermented, thereby increasing the fermentation speed; the conversion rate of sugar is high; in addition, the orange peel is degraded in a fermentation process, thereby increasing the quantity of fermentation products; by utilizing the saccharomyces cerevisiae to ferment sugaring waste, the carbohydrate in the waste is converted into low-molecule alcohol and organic acid; compared with a way of directly using the sugaring waste as the denitrification carbon source, the effective component content is high, and the problems of few effective substances, more foam and the like occuring when the carbohydrate is directly used as the carbon source can be avoided; according to the method, high-valued application of the sugaring waste and the orange peel can be achieved, and the conversion of the carbohydrate to the low-molecule alcohol and organic acid during storage and transportation of a product is realized.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of solid waste and biological treatment of wastewater, and in particular relates to a method for preparing a carbon source for biological denitrification by utilizing sugar-containing waste liquid. Background technique [0002] The discharge of urban domestic sewage and industrial wastewater and eutrophication substances have increased, resulting in increasingly serious eutrophication of lakes and reservoirs. Nitrogen and phosphorus substances are limiting factors for the growth and reproduction of planktonic algae in water bodies. Therefore, the state has established strict standards for nitrogen and phosphorus content in sewage (waste) water treatment effluent. Biological denitrification is the main process of denitrification in sewage (waste) water treatment. [0003] Denitrification denitrification is the reduction of nitrate by denitrifying bacteria under anoxic conditions,...

Claims

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Application Information

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IPC IPC(8): C02F3/28
CPCC02F3/28C02F2305/06
Inventor 雷国元周达邵震陈春梅王洪希谈永军
Owner 宜兴禹博治环保科技有限公司
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