活性炭活化过硫酸盐氧化剂提升污泥脱水性能研究

谭宇杰; 陈亚一; 周彬杰; 陆雪琴; 甄广印; 胡维杰

doi:10.13205/j.hjgc.202405009

活性炭活化过硫酸盐氧化剂提升污泥脱水性能研究

doi: 10.13205/j.hjgc.202405009

1. 中交上海航道勘察设计研究院有限公司, 上海 200120;
2. 华东师范大学生态与环境科学学院上海市城市生态过程与生态恢复重点实验室, 上海 200241;
3. 上海市政工程设计研究总院(集团)有限公司第三设计研究院, 上海 200092

基金项目:

上海市科技计划项目(20230730100)

上海市科技计划项目(21230731100)

详细信息

作者简介:
谭宇杰(1995-),男,助理工程师,主要研究方向为水环境治理研究。tyj857@163.com

通讯作者:
甄广印(1984-),男,教授,主要研究方向为固废资源化利用。gyzhen@des.ecnu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2023-10-26
- 网络出版日期: 2024-07-11

PROMOTING DEWATERABILITY OF WASTE ACTIVATED SLUDGE BY ACTIVATED CARBON ACTIVATED PERSULFATE OXIDATION

1. Shanghai Waterway Engineering Design and Consulting Co., Ltd., Shanghai 200120, China;
2. Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China;
3. The 3rd Design Institute, Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai 200092, China

摘要

摘要: 采用废弃活性炭和K₂S₂O₈对污泥进行预处理,发现不同配比的活性炭和K₂S₂O₈可以破坏污泥结构,增强污泥脱水性能。当污泥中加入1.00 g/g VS活性炭和1.60 mmol/g VS S₂O₈^2-,反应20 min后进行抽滤实验,污泥经过60,120,180,240,300 s抽滤,失水量分别为(4.95±0.05),(6.65±0.15),(7.45±0.05),(7.90±0.10),(7.90±0.01)g;相比原始污泥,在相同时刻下,失水量分别上升了32.00%、20.91%、19.20%、17.04%和16.18%;抽滤后泥饼含水率为(62.63±1.09)%,相较原始污泥泥饼,含水率下降了19.97%。说明活性炭和K₂S₂O₈可以大大提高污泥脱水性能,加快污泥脱水速率,降低泥饼含水率。在工业应用中,活性炭和K₂S₂O₈具有成本低廉的优势,用于污泥脱水可降低污泥预处理费用,节约成本。同时,高效的污泥处理可降低污泥综合处理以及后续处置成本。
- 污泥脱水 /
- 活性炭 /
- 过硫酸盐 /
- 含水率
Abstract: Waste-activated carbon and K₂S₂O₈ were used to pretreat sludge, and different proportions of activated carbon and K₂S₂O₈ could destroy the sludge structure and enhance the sludge dewatering performance. When 1.00 g/g VS activated carbon and 1.60 mmol/g VS S₂O₈^2- were added into the sludge, the sludge was filtered for 60, 120, 180, 240, 300 s after reaction for 20 min. The water loss was (4.95±0.05), (6.65±0.15), (7.45±0.05), (7.90±0.10), (7.90±0.01) g, respectively. Compared with the original sludge, the water loss at the same time increased by 32.00%, 20.91%, 19.20%, 17.04%, and 16.18%, respectively. The moisture content of the sludge cake was (62.63±1.09)%, which was 19.97% lower than that of the original sludge cake. These results showed that activated carbon and K₂S₂O₈ can greatly improve the sludge dewatering performance, accelerate the sludge dewatering rate, and reduce the moisture content of the mud cake. In industrial applications, activated carbon and K₂S₂O₈ have the advantage of low cost. When used for sludge dewatering, they can reduce sludge pretreatment costs, and an efficient sludge treatment effect can reduce sludge comprehensive treatment and subsequent disposal costs.
- sludge dewatering /
- activated carbon /
- persulfate /
- moisture content

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参考文献(12)

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