Processing method, device and application of low-organic-matter sludge modified material

By using a low-organic-matter sludge modification material processing device and composite modification treatment, a modified material with high adsorption performance was prepared, which solved the problems of low interception efficiency of non-point source pollution in riverbanks and low resource utilization rate of sewage sludge in water supply, and achieved the ability to efficiently intercept dissolved nitrogen and phosphorus and low-cost sludge disposal.

CN122403530APending Publication Date: 2026-07-17CHINA THREE GORGES CORPORATION +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA THREE GORGES CORPORATION
Filing Date
2026-03-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for intercepting non-point source pollution in riparian zones suffer from low interception efficiency, low material utilization rate, and the risk of secondary pollution, as well as low utilization rate of sludge resources in water supply.

Method used

Using a low-organic-matter sludge modification material processing device, a modified material with high-efficiency adsorption performance is prepared through screening, tapping and composite modification treatment. Attapulgite, hydroxyapatite and ferric chloride are used as the skeleton filling phase and binder phase of the flocs to form a three-dimensional network composite floc structure.

Benefits of technology

It achieves the ability to efficiently intercept dissolved nitrogen and phosphorus, reduces sludge disposal costs, avoids secondary pollution, improves resource utilization, reduces the risk of heavy metal leaching, and improves the service life and ecological compatibility of materials.

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Abstract

本发明属于水环境治理与生态修复技术领域,具体的说是一种低有机质污泥改性材料加工方法、装置及应用,包括:箱体,所述箱体上铰接有箱门,所述箱体底部设置有集料斗;筛料组件,所述筛料组件包括一轴线与水平面呈夹角的筛筒,所述筛筒转动地架设于所述箱体内,所述筛筒的内壁上沿其长度方向对称设置有多个凸棱;叩击组件,所述叩击组件设置有多组且沿着筛筒轴线方向间隔布设,每组所述叩击组件有多对弧形杆和弹性球组成,每个所述弧形杆的两端分别固定有弹性球;本发明以给水污泥为主要原料,替代传统不可再生吸附材料,实现“以废治废”,降低污泥处置成本,同时避免二次污染,提升了固废资源化利用率。
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