一种利用葡萄糖提升玉米秸秆或水稻秸秆发酵碳源反硝化脱氮性能的方法

By utilizing glucose to stimulate microbial activity and optimizing straw fermentation conditions to form a composite carbon source, the problems of excessive microbial proliferation and unstable denitrification in low carbon-to-nitrogen ratio wastewater treatment are solved, achieving efficient and economical wastewater treatment results.

CN120247258BActive Publication Date: 2026-07-17INSTITUTE OF MICROBIOLOGY JIANGXI ACADEMY OF SCIENCES (JIANGXI INSTITUTE OF WATERSHED ECOLOGY)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INSTITUTE OF MICROBIOLOGY JIANGXI ACADEMY OF SCIENCES (JIANGXI INSTITUTE OF WATERSHED ECOLOGY)
Filing Date
2025-03-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When treating wastewater with a low carbon-to-nitrogen ratio, traditional carbon sources can easily lead to excessive microbial growth, blockage of process pipelines, and high economic costs. Agricultural waste fermentation broth has low carbon source utilization and unstable denitrification rate, making it difficult to meet wastewater treatment standards.

Method used

Glucose is used to stimulate microbial activity, optimize the fermentation conditions of corn or rice straw, combine industrial glucose and straw fermentation broth to form a composite carbon source, adjust the carbon-nitrogen ratio, and add it to an SBR reactor for denitrification. Anaerobic and aerobic conditions are controlled, and calcium peroxide and zero-valent iron are used to treat the straw to improve microbial diversity and carbon source release rate.

Benefits of technology

It improves the utilization rate of straw fermentation liquid by microorganisms, stabilizes biological denitrification capacity, reduces costs, avoids excessive microbial reproduction and process blockage, and produces effluent water quality that is better than using traditional or straw fermentation liquid alone, achieving a highly efficient denitrification effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及污水处理技术领域,具体涉及一种利用工业葡萄糖提升玉米或水稻秸秆发酵碳源反硝化脱氮性能的方法。本发明采用过氧化钙浸泡预处理秸秆,同时在在厌氧发酵过程中通过氮气保持厌氧条件并投加零价铁获得秸秆发酵液。通过将发酵液与工业葡萄糖混合作为复合碳源,利用葡萄糖的易利用性激发污泥系统中微生物的活性,提高微生物对水稻和玉米发酵液碳源的利用率;优化水稻和玉米秸秆厌氧发酵条件,提高碳源释放率,利用发酵液碳源组成的复杂性,提高微生物的多样性,避免微生物过量繁殖,提高生物脱氮能力。本发明利于农业废弃物的资源化利用,降低低碳氮比污水生物脱氮成本,推进污水处理的绿色低碳发展。
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