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A method for treating threonine fermentation wastewater by using biochemical technology

A technology for technical treatment and fermentation of wastewater, applied in chemical instruments and methods, biological water/sewage treatment, natural water treatment, etc., can solve the problems of poor mass transfer inside the microbial carrier, unreasonable microbial compatibility, and many times of feeding, etc. Achieve the effect of promoting nitrification and denitrification, reducing sludge production and increasing microbial concentration

Active Publication Date: 2017-02-15
HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the hot research is on the treatment of fermentation wastewater by biotechnology, which has the advantages of low cost and no secondary pollution, but there are unreasonable microbial compatibility, low treatment efficiency, and microbial carriers have poor internal mass transfer and are not easy to transmit light. , small specific surface area, short service life and other defects; biological agents need to be put in many times, which increases the cost, and the large amount of dosing produces a large amount of sludge, which is not easy to handle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for treating threonine fermentation waste water by using biochemical technology, comprising the following steps: step 1) preparing carrier, step 2) preparing biological agent, and step 3) biological treatment.

[0030] Specifically, include the following steps:

[0031] Step 1) Preparation of vector:

[0032] A) Weigh the following raw materials in parts by weight for later use, including 20 parts of water, 10 parts of polyvinyl alcohol, 7 parts of humic acid, 5 parts of starch ether, 3 parts of sucrose, 3 parts of kaolin, 3 parts of ammonium sulfate, carapace 2 parts plain, 2 parts corn stalks, 1 part silica gel powder;

[0033] B) Pulverize humic acid, then add kaolin, mix well, and grind to 100 mesh humic acid kaolin mixed powder;

[0034] C) crush the corn stalks with a pulverizer, and pass through a 50-mesh sieve to obtain straw powder;

[0035] D) Add water, polyvinyl alcohol, starch ether, sucrose, ammonium sulfate, chitin, straw powder and silica gel...

Embodiment 2

[0041] A method utilizing biochemical technology to treat threonine fermentation wastewater, comprising the steps of:

[0042] Step 1) preparation of carrier, step 2) preparation of biological agent, step 3) biological treatment.

[0043] Specifically, include the following steps:

[0044] Step 1) Preparation of vector

[0045] A) Weigh the following raw materials in parts by weight for later use, among them, 22 parts of water, 12 parts of polyvinyl alcohol, 8 parts of humic acid, 6 parts of starch ether, 5 parts of sucrose, 4 parts of kaolin, 4 parts of ammonium sulfate, carapace 3 parts of plain, 3 parts of straw, 2 parts of silica gel powder; wherein, the particle size of silica gel powder is 200 mesh;

[0046] B) Pulverize humic acid, then add kaolin, mix well, and grind to 100 mesh humic acid kaolin mixed powder;

[0047] C) The straw is crushed with a pulverizer, and then passed through a 50-mesh sieve to obtain straw powder;

[0048] D) Add water, polyvinyl alcohol,...

Embodiment 3

[0055] The effect test of biological preparation of the present invention:

[0056] The fermented wastewater from which fermented cells, proteins and polysaccharides were removed was used as the treated sample for the experiment.

[0057] Control group 1: use sawdust carrier; the type of microorganisms is the same as that of the test group; treatment method: after three days of continuous dosing, 5g / m3 per day, and then stand for six days, the detection and treatment results are shown in Table 1.

[0058] Control group 2: The carrier is the same as in Example 2, the difference is that only four kinds of bacteria are added, but Scenedesmus obliques is not added; treatment method: add 5g / cubic meter on the first day, and then leave it for six days to detect See Table 1 for the processing results.

[0059] Test group: the biological preparation prepared in Example 2 of the present invention; treatment method: one day after adding, 5g / cubic meter, and then standing for six days, ...

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Abstract

The invention belongs to the field of fermentation waste liquid treatment in the biological fermentation industry, and discloses a method for treating threonine fermentation wastewater by using biochemical technology, which includes the following steps: step 1) preparing a carrier, step 2) preparing a biological agent, step 3) biological deal with. The biotechnology method of the invention for treating fermentation waste water is simple and feasible, has good treatment effect and low cost, and is suitable for popularization and use.

Description

technical field [0001] The invention belongs to the field of fermentation waste liquid treatment in the biological fermentation industry, and in particular relates to a method for treating threonine fermentation waste water by using biochemical technology. Background technique [0002] Threonine, referred to as Thr, with a chemical formula of C4H9NO3, is an essential amino acid. It is the second limiting amino acid in pig feed and the third limiting amino acid in poultry feed. With the widespread use of lysine and methionine in compound feed Threonine has gradually become the main limiting factor affecting the growth of livestock and poultry. Threonine is mainly used as a feed additive. Its production steps are concentration, crystallization, and extraction of bacterial protein. However, the fermentation wastewater generated in the process is difficult to treat and the cost is high. It is difficult to obtain cost-effective by-products. [0003] At present, there are three m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F103/36
Inventor 张传森王均成丁兆堂时夫龙卢松张修军
Owner HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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