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A kind of method that utilizes acarbose fermentation waste residue to prepare soil conditioner

A technology of fermentation waste residue and acarbose, applied in the biological field, can solve the problems of environmental pollution, high processing cost, breeding of mosquitoes or mildew, etc.

Active Publication Date: 2021-10-29
SHANGHAI JIAOTONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Acarbose fermentation waste residue contains a large amount of fermentation mycelium, residual culture medium, acarbose drug residues and a large amount of inorganic perlite. If not handled properly, it is easy to breed mosquitoes or mildew, produce foul smell, and cause environmental pollution.
At present, the incineration process is mainly used for treatment, which is costly and prone to secondary pollution

Method used

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  • A kind of method that utilizes acarbose fermentation waste residue to prepare soil conditioner
  • A kind of method that utilizes acarbose fermentation waste residue to prepare soil conditioner
  • A kind of method that utilizes acarbose fermentation waste residue to prepare soil conditioner

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The acarbose fermentation waste residue was mixed with clean water to form a waste residue liquid with a solid mass concentration of 60g / L, and the waste residue liquid was directly transferred to a three-stage series anaerobic reactor, which was inoculated with commercially available anaerobic sludge , the total volume of acarbose fermentation waste liquid added every day is 1 / 12 of the total volume of the three-stage series anaerobic reactor, that is, the anaerobic residence time is controlled to be 12d.

[0064] Regulate the pH of each anaerobic tank with oxalic acid and sodium carbonate, be that the pH of 1# tank is 6.8, the pH of 2# tank is 7.2, the pH of 3# tank is 7.4, meanwhile, the mixed solution (comprising solid and liquid) is returned to the 1# tank, and the return flow is 50% of the total amount of feed. The remaining mixed liquid discharged from the 3# tank is separated from the solid and liquid through gravity sedimentation in the sedimentation concentrat...

Embodiment 2

[0067] The whole treatment device consists of 2 pretreatment tanks, 3 anaerobic reactors (1# tank, 2# tank, 3# tank) and 1 sedimentation concentration tank.

[0068] In the pretreatment tank 1, the acarbose fermentation waste residue was mixed with clean water to form a waste residue liquid with a solid mass concentration of 60 g / L, and the pH was adjusted to 9.5 with NaOH solid, heated to 60°C, and reacted for 2 hours. After the reaction, the waste residue liquid is transferred to the pretreatment tank 2, the feed liquid is mixed with the commercially available anaerobic sludge (the volume ratio of the feed liquid and the anaerobic sludge is 1:1), and the pH is adjusted to 6.5 with oxalic acid, and the reaction temperature The temperature is 30°C, and the reaction time is 1d.

[0069] The pretreated feed liquid is transferred to the three-stage series anaerobic reactor, and the commercially available anaerobic sludge is inoculated in the anaerobic reactor. The total volume o...

Embodiment 3

[0073] The whole treatment device consists of 2 pretreatment tanks, 3 anaerobic reactors (1# tank, 2# tank, 3# tank) and 1 sedimentation concentration tank.

[0074] In the pretreatment tank 1, the acarbose fermentation waste residue was mixed with clean water to form a waste residue liquid with a solid mass concentration of 70 g / L, and the pH was adjusted to 9.0 with NaOH solid, heated to 55° C., and reacted for 3 hours. After the reaction, the waste residue liquid is transferred to the pretreatment tank 2, the feed liquid is mixed with the commercially available anaerobic sludge (the volume ratio of the feed liquid and the anaerobic sludge is 1:2), and the pH is adjusted to 7.0 with oxalic acid, and the reaction temperature The temperature is 30°C, and the reaction time is 2d.

[0075] The pretreated feed liquid is transferred to the three-stage series anaerobic reactor, and the commercially available anaerobic sludge is inoculated in the anaerobic reactor. The inoculum amou...

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Abstract

The invention provides a method for preparing a soil conditioner by using acarbose fermentation waste residue. Specifically, the present invention treats acarbose fermentation waste residue through reasonable control of anaerobic reaction conditions and combined with pretreatment steps. Experimental results show that the method of the invention can significantly shorten the time of anaerobic treatment, and the removal rate of drug residues in waste residue can reach more than 90%, and the removal rate of solid matter can reach more than 70%. The invention also provides a method for making the soil conditioner by dehydrating and drying the remaining solid residue after multi-stage anaerobic treatment.

Description

technical field [0001] The invention belongs to the field of biotechnology, in particular, the invention relates to a method for preparing a soil conditioner by using acarbose fermentation waste residue. Background technique [0002] China is the world's largest producer of antibiotic APIs, accounting for about 70% of the world's total production of antibiotics. If a large amount of antibiotic waste is not properly disposed of, it will pose a serious threat to the environment. A large amount of antibiotic waste residues are generated, most of which are hazardous wastes. At present, the treatment methods of antibiotic waste residues vary from country to country. The United States and the European Union mainly solve the problem of disposal of antibiotic waste residues by means of incineration, landfilling and making organic fertilizers; India and Mexico mainly focus on making organic fertilizers from antibiotic waste residues. [0003] The harmless and resourceful treatment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B09B5/00C09K17/40
CPCB09B3/00B09B5/00C09K17/40
Inventor 陈代杰刘鹏宇陈舟舟殷瑜吴晖徐亚强杨涛许乐义傅科平
Owner SHANGHAI JIAOTONG UNIV
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