Filtered mud composting method based on synergistic interaction of sargassum fusiforme and complex microbial inoculants

By combining Sargassum fusiforme with compound microbial agents, the problems of carbon-nitrogen imbalance, difficulty in lignocellulose degradation, and heavy metal risks in bagasse filter mud composting have been solved, enabling rapid start-up and deep decomposition of compost, and improving composting efficiency and quality.

CN121554340APending Publication Date: 2026-02-24GUANGXI UNIV
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Patent Information

Application Number
CN202511798248.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-02
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing technologies for composting bagasse filter mud suffer from problems such as an imbalance in the carbon-nitrogen ratio, difficulty in degrading lignocellulose, risks associated with the bioavailability of heavy metals, and low nutrient retention and conversion efficiency, resulting in limited room for improvement in composting efficiency and quality.

Method used

By utilizing the synergistic effect of Sargassum fusiforme and compound microbial agents, and by adjusting the carbon-nitrogen ratio, Sargassum fusiforme powder and compound microbial agents (Bacillus licheniformis and Protozoa chrysophagus) are added to carry out aerobic fermentation, which promotes rapid start-up, deep decomposition and efficient nutrient retention.

Benefits of technology

It enables rapid start-up and deep maturation of the composting process, significantly increases the generation of humic substances and humic acid, reduces the content of available heavy metals, and improves the environmental safety and fertilizer efficiency of compost products.

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Abstract

The invention discloses a bagasse filter mud composting method based on synergistic interaction of sargassum fusiforme and a complex microbial inoculant. The method comprises the following steps: mixing a sugar manufacturing byproduct bagasse and filter mud according to a certain dry weight ratio, and adjusting the moisture and carbon nitrogen ratio; synchronously adding sargassum fusiforme powder and a compound microbial agent, wherein the microbial agent is prepared by compounding bacillus licheniformis and phanerochaete chrysosporium; the high-temperature period is maintained for not less than 7 days, the total fermentation period is about 45 days, and the matured compost and the fertilizer thereof are prepared. The sargassum fusiforme is used as a natural conditioner, so that the composition of nutrient substances can be optimized, nitrogen and water are preserved, and heavy metals are passivated; and the lignocellulose is specifically degraded by the complex microbial inoculants. Through the synergistic effect of the bagasse and the filter mud, the high-temperature period of the compost is remarkably prolonged, the nutrient loss is reduced, the decomposition degree and the environmental safety of a compost product are improved, and an efficient and environment-friendly new way is provided for high-value resource utilization of the bagasse and the filter mud.
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