一种污泥闭环处理的方法

The calcium/acid modified sludge-based biochar treatment method solves the problems of high difficulty and high cost of sludge dewatering, realizes closed-loop treatment and resource reuse of sludge, and reduces equipment corrosion and pollution risks.

CN117209120BActive Publication Date: 2026-07-17CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Filing Date
2023-10-31
Publication Date
2026-07-17

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Abstract

本发明公开了一种活性污泥的闭环处理方法，属于污泥处理技术领域，该方法包括以下步骤：将脱水车间的污泥烘干粉碎收集得到污泥样品颗粒；将污泥样品颗粒与活化剂混合、浸渍得到钙改性污泥；将钙改性污泥烘干后放入管式炉热解碳化获得钙改性污泥基生物炭；冷却至室温后，将钙改性污泥基生物炭在酸性溶液中浸渍；将浸渍后的生物炭烘干、研磨、过筛、收集得到钙 / 酸改性污泥基生物炭；将钙 / 酸改性污泥基生物炭与活性污泥混合、搅拌、过滤，完成污泥的处理；处理后的污泥经过脱水、烘干后可作为污泥样品颗粒再次回用，所述该方法通过改性、碳化、回用的方式实现了活性污泥的闭环处理，在有效改善污泥脱水性能的同时，大幅度降低了污泥的调理与处理成本。
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