Aerobic sludge composting biological accelerant and usage

A bio-promoter, aerobic composting technology, applied in the directions of sewage/sludge fertilizer, fertilizer mixture, combined biological treatment, etc. High water-soluble carbon and humic content, low heavy metal content, and the effect of reducing moisture content

Inactive Publication Date: 2017-09-29
广宁县奥茵环境工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, municipal sludge often contains toxic substances such as germs, parasites, and heavy metals. At the same time, due to the high moisture content of sludge, especially the high content of bound water on the cell surface, the dehydration performance is poor, and it is difficult to mix evenly with auxiliary materials during the composting process. , easy to form a compact structure, which is not conducive to water evaporation, long composting time, slow maturity, and unstable product quality
Although CN103834592A discloses a microbial fermentation agent for treating municipal sludge and its preparation method, which utilizes the microbial fermentation agent to treat sludge, the method needs 7 days to reach the highest temperature, the heating rate is still relatively slow, and does not involve rapid removal of moisture solution

Method used

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  • Aerobic sludge composting biological accelerant and usage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of sludge aerobic composting biological accelerator is prepared as follows:

[0034] (1) Component A: Mix high-temperature-resistant protease, cellulase and amylase in a ratio of 30:40:30 to make a compound enzyme preparation, add compound enzyme stabilizer DPD, and the added amount is the content of the compound enzyme preparation 0.01% of;

[0035] (2) Component B: the penetrating agent is fatty alcohol polyoxyethylene ether;

[0036] (3) Component C: Mix Bacillus stearothermophilus, Bacillus subtilis, Pseudomonas spp., Cellulomonas luteogenes, and Aspergillus niger in a mass ratio of 4.0:3.0:0.5:0.5:3.0, Among them, the number of effective viable bacteria of Bacillus stearothermophilus and Aspergillus niger were ≥10 8 Individuals / mL, the number of effective viable bacteria of Bacillus subtilis, Pseudomonas lutea, and Cellulomonas luteogenes were ≥10 respectively 9 / mL, the total effective number of viable bacteria in the compound microbial preparation was 3...

Embodiment 2

[0042] A kind of preparation method of sludge aerobic composting biological accelerator is as follows:

[0043] (1) Component A: Mix high-temperature-resistant protease, cellulase and amylase at a ratio of 35:45:20 to make a compound enzyme preparation, add compound enzyme stabilizer DPD, and the added amount is the content of the compound enzyme preparation 0.03% of;

[0044] (2) Component B: the penetrating agent is fatty alcohol polyoxyethylene ether;

[0045] (3) Component C: Mix Bacillus stearothermophilus, Bacillus subtilis, Pseudomonas pyogenes, Cellulomonas luteogenes, and Aspergillus niger in a mass ratio of 5.0:4.0:0.8:0.8:2.5, Among them, the number of effective viable bacteria of Bacillus stearothermophilus and Aspergillus niger were ≥10 8 Individuals / mL, the number of effective viable bacteria of Bacillus subtilis, Pseudomonas lutea, and Cellulomonas luteogenes were ≥10 respectively 9 per mL, the total effective number of viable bacteria in the prepared composi...

Embodiment 3

[0051] A kind of preparation method of sludge aerobic composting biological accelerator is as follows:

[0052] (1) Component A: Mix high-temperature-resistant protease, cellulase and amylase in a ratio of 40:50:10 to make a compound enzyme preparation, add compound enzyme stabilizer DPD, and the added amount is the content of the compound enzyme preparation 0.02% of;

[0053] (2) Component B: penetrant isooctyl polyoxyethylene ether;

[0054] (3) Component C: Mix Bacillus stearothermophilus, Bacillus subtilis, Pseudomonas pyogenes, Cellulomonas luteogenes, and Aspergillus niger in a mass ratio of 6.0:5.0:1.0:1.0:2.0, Among them, the number of effective viable bacteria of Bacillus stearothermophilus and Aspergillus niger were ≥10 8 Individuals / mL, the number of effective viable bacteria of Bacillus subtilis, Pseudomonas lutea, and Cellulomonas luteogenes were ≥10 respectively 9 each / mL, the total effective number of viable bacteria in the prepared composite microbial prepar...

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Abstract

The invention relates to an aerobic sludge composting biological accelerant and a usage. The aerobic sludge composting biological accelerant consists of complex enzyme, complex enzyme stabilizer, penetrant and compound microorganism bacterium agent. The aerobic sludge composting biological accelerant, which is specially developed for aerobic sludge composting, can quickly increase the temperature of sludge, and moreover, the aerobic sludge composting biological accelerant can promote the transformation of the bound water of organisms into free water, reducing the moisture content of sludge. A well-rotted compost product produced by the accelerant has low moisture content and heavy metal content and high organic matter, water-soluble carbon and humus contents, and the accelerant is suitable for large-scale industrialized application.

Description

technical field [0001] The invention relates to the field of environmental protection biotechnology, in particular to a bioaccelerator for sludge aerobic composting and a use method thereof. Background technique [0002] In recent years, with the acceleration of urbanization in our country, the capacity of urban sewage treatment has been increasing day by day. Each sewage treatment plant discharges hundreds of tons or even tens of thousands of tons of excess sludge every day. From an economic point of view, various sludge treatment and disposal methods require huge funds, which can account for 25% of the operating costs of wastewater treatment plants. ~60%, the treatment and disposal of urban sludge has become a bottleneck restricting the development of urban sewage treatment industry. The generation of a large amount of sludge not only affects the daily operation of the sewage plant, but also poses a severe challenge to the safety of the ecological environment in our count...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05C11/00C05G3/00C05F7/00C05F11/08C05F17/50
Inventor 尚卫辉顾文杰任园园杨春光李锦盛廖惠芳
Owner 广宁县奥茵环境工程科技有限公司
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