Treatment method of lutein extraction waste liquid
A treatment method and lutein technology are applied in the field of harmless treatment of marigold fermentation and pressing waste liquid, which can solve problems such as environmental pollution, and achieve the effects of solving the problem of discharge pollution, good effect and easy operation.
Inactive Publication Date: 2019-10-29
贵州御凤天泓生物科技发展有限公司
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Problems solved by technology
At present, in the process of producing natural yellow pigment with marigold flowers, a large amount of pollutants will be produced - marigold fermentation press waste liquid, that is: put marigold flowers into the fermentation tank, add microorganisms, and make the flowers ferment in a closed state Afterwards, solid-liquid separation is carried out, and the separated liquid is waste liquid. The pH value of the waste liquid is 4-6, which is an acidic liquid. The waste liquid contains a large amount of organic substances, such as lactic acid, amino acid, humic acid, etc. Useful components, due to the high BOD and COD values of waste liquid, direct discharge will cause serious pollution to the environment
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[0054] A method for treating lutein extraction waste liquid from marigold fermentation and pressing waste liquid, characterized in that the processing steps are as follows: A, take biological bacteria according to 0.3% of the mass of water-absorbing substances, and dilute with water or waste liquid The biological bacteria taken; the biological bacteria is one of conventional EM bacteria, B.Y.M-FOOD enzyme bacteria, RW enzyme agent and BM starter used for organic matter fermentation;
[0055] B. Add the diluted biological bacteria and waste liquid in step A to the water-absorbing substance and mix until the water-absorbing substance has a water content of 68% by mass; the water-absorbing substance is composed of the following mass ratio: organic matter 60%
[0056] Feces 40%
[0057] Peat or lignite or fly ash or straw ash 40%;
[0058] Urea 1.5%
[0059] Potassium dihydrogen sulfate 1%
[0060] Decomposing bacteria 1.4%
[0061] C. Stack and ferment the mixture in step B u...
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The invention discloses a treatment method of a lutein extraction waste liquid. The treatment method of the lutein extraction waste liquid is characterized by comprising the following treatment steps:A, weighing a biological bacterium, and diluting the weighed biological bacterium by using water or a waste liquid; B, adding the diluted biological bacterium of the step A and the waste liquid intoa water absorption substance, and performing uniform mixing; C, performing composting fermentation on the mixed material of the step B so as to obtain an organic fertilizer; D, adding an organic carbon bacterial liquid into the organic fertilizer after crushing in the step D so as to obtain a special bacterium of a marigold fermentation liquid; and E, mixing the special bacterium obtained in the step with a stock solution, and keeping the oxygen supply amount in the mixed liquid to 0.025L / L.min. By adopting the treatment method, a marigold fermentation squeezing waste liquid can be subjected to harmless treatment, not only is the problem of emission pollution of a fresh marigold fermentation squeezing waste liquid solved, but also a great number of organic matters in the waste liquid can be utilized, and the product obtained after reactions has a good use effect as a fertilizer, is simple in preparation method, easy to operate and feasible in industrial application.
Description
technical field [0001] The invention relates to a sewage treatment method, in particular to a harmless treatment method for marigold fermentation and pressing waste liquid, and belongs to the technical field of sewage treatment. Background technique [0002] Marigold flowers are raw materials for extracting natural lutein. With the increasing demand for natural lutein at home and abroad, the scale of planting, production and processing of marigold is gradually expanding. However, during the process of fermenting marigold flowers to extract lutein, a large amount of waste liquid will be discharged, which seriously restricts the development of this industry. This waste liquid is acidic, with a ph value generally between 4.0 and 5.5. It also contains a large amount of organic substances, and its composition is relatively complex. Direct discharge will pollute the environment and even lead to the death of crops. If the traditional sewage treatment method is used to treat the wa...
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IPC IPC(8): C05G1/00
CPCC05C9/00C05F3/00C05D1/02C05F11/02C05F11/08C05F17/00C05F3/04C05F5/002C05F7/00C05F9/04C05F11/00
Inventor 陈士进
Owner 贵州御凤天泓生物科技发展有限公司