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A synergistic aerobic fermentation process of sludge after biological drying of traditional Chinese medicine residue

A technology of biological drying and aerobic fermentation, which is applied in the direction of sewage/sludge fertilizer, biological organic part treatment, fertilizer made from biological waste, etc., to achieve the effects of improving fermentation efficiency, stable product properties, and short fermentation time

Active Publication Date: 2017-12-29
CISDI ENG CO LTD
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Problems solved by technology

The discharge and proper disposal of traditional Chinese medicine dregs has always been a very difficult problem, and it has also brought huge pressure on environmental protection

Method used

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  • A synergistic aerobic fermentation process of sludge after biological drying of traditional Chinese medicine residue
  • A synergistic aerobic fermentation process of sludge after biological drying of traditional Chinese medicine residue

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Embodiment

[0026] like figure 1 As shown, the present invention provides a collaborative sludge aerobic fermentation process after biological drying of traditional Chinese medicine residue, which is carried out in a sewage treatment plant:

[0027] First, 15kg of traditional Chinese medicine slag and 10g of compound microbial agent after the initial dehydration of the traditional Chinese medicine factory are mixed evenly, wherein the compound microbial agent is 3:3:1:2 according to the weight and number ratio of alcoholic yeast, Aspergillus niger, Bacillus thuringiensis, and Trichoderma viride The ratio of the preparation, the initial moisture content of the dregs of the medicine is about 85%; then the mixed dregs and the compound bacterial agent are stacked in the biological drying tank, the bottom is forced to ventilate, and the top fan is drawn, and dried for 4 days. The moisture content after drying was measured to be 20%. Take the sludge with a water content of about 85% after prel...

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Abstract

The invention provides a process for performing aerobic fermentation on bio-drying traditional Chinese medicine residues and sludge. The process comprises the following steps: (1) uniformly mixing the dehydrated medicine residues with the moisture content of 70-85 percent in a Chinese medicine factory with complex bacteria according to a ratio of 1400:1-1800:1; (2) stacking the mixed medicine residues in a bio-drying tank, performing bottom forced ventilation and top exhaust, and drying for 3-4 days; and (3) mixing the dried medicine residues with sludge according to a certain ratio, inputting the mixture into a sludge aerobic fermentation device, ventilating, stirring, and performing sludge aerobic fermentation. Compared with the traditional sludge aerobic fermentation process by taking the medicine residues as a conditioner, the process disclosed by the invention has the advantages that the front-end medicine residue drying process provides good conditions for the subsequent fermentation process, the fermentation efficiency is improved, the accurate environment control of the sludge aerobic fermentation device is matched, the whole fermentation process period can be shortened to 12 days, and various indexes of the clinker can reach the standard; and moreover, the sludge and medicine residues are effectively treated, and the treated products are recycled.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, and in particular relates to a process for treating medicinal residues and sludge by using biologically dried medicinal residues as auxiliary materials in cooperation with sludge from a sewage treatment plant for aerobic fermentation. Background technique [0002] With the development and utilization of traditional Chinese medicine resources, especially the advancement of modern industrial science and technology, the industrialization and scale of Chinese medicine production have been continuously deepened, the Chinese medicine industry has been developed, and huge economic benefits have been generated. However, the dregs produced after the extraction of a large number of Chinese medicinal materials have become a serious problem at present. According to statistics, the annual discharge of plant residues in my country alone is as high as 650,000 tons. The forms of early treatment of...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05F17/00C05F7/00
CPCC05F5/00C05F17/00Y02A40/20Y02W30/40
Inventor 杨世辉严浩
Owner CISDI ENG CO LTD
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