Home Journals Articles Updates About
CN
image
收藏切换
Effects of fulvic acid on the speciation of heavy metals during dredged sediment composting
收藏切换
Chu-xuan SONG1, Shi-quan SUN1, 2, *, Li-juan LIU1, Xue-ning LI1, Cheng-yu ZHOU1, Sui-qin YANG1, Ju-long SUN1, Wei ZHANG1, Yang GAO1, Le-an ZHOU1, Hidawa YOSHIYUKI3
China Environmental Science | 2025, 45(10) : 5596 - 5606
Less
收藏切换
China Environmental Science | 2025, 45(10): 5596-5606
• Solid Waste •
Effects of fulvic acid on the speciation of heavy metals during dredged sediment composting
Full
Chu-xuan SONG1, Shi-quan SUN1, 2, *, Li-juan LIU1, Xue-ning LI1, Cheng-yu ZHOU1, Sui-qin YANG1, Ju-long SUN1, Wei ZHANG1, Yang GAO1, Le-an ZHOU1, Hidawa YOSHIYUKI3
Affiliations
  • 1.School of Hydraulic and Ocean Engineering, Changsha University of Science and Technology, Changsha 410114, China
  • 2.Hunan Provincial Key Laboratory of Dongting Lake Water Environment Management and Ecological Restoration, Changsha 410114, China
  • 3.Sofuken Co., Ltd., Takadanobaba, Shinjuku ku, Tokyo 1-10-15-204, Japan
Published: 2025-10-20
Outline
收藏切换

To investigate the effect of fulvic acid (FA) addition on heavy metal speciation during aerobic composting of sludge-based biomass waste, a 44-day aerobic composting experiment was conducted using sludge, straw, and food waste as raw materials. The effects of FA at 100, 200, and 400mg·kg-1 on heavy metal transformation dynamics were examined. Results showed that FA addition increased peak temperature, cation exchange capacity (CEC), volatile solids (VS) degradation rate, and germination index (GI). FA notably facilitated the conversion of heavy metals into more stable residual fractions, with residual cobalt (RES-Co), nickel (RES-Ni), and copper (RES-Cu) contents increasing by 11.0%~16.9%, 4.1%~6.8%, and 0.8%~6.0%, respectively, compared to the control. By enhancing the accumulation of aromatic carbon in dissolved organic matter (DOM) and enriching specific microbial taxa (e.g., Proteobacteria and Bacteroidetes), FA accelerated humification and enhanced the immobilization of heavy metals. GI, CEC, pH, and RES-Ni were identified as key factors influencing microbial community shifts. The 400mg/kg FA treatment exhibited the most significant heavy metal passivation effect, primarily by accelerating the humification of dissolved organic matter and optimizing the microbial community structure.

fulvic acid  /  sludge  /  aerobic composting  /  heavy metals  /  dissolved organic matter  /  microbial community
宋楚轩, 孙士权, 刘丽娟, 李雪凝, 周成宇, 杨岁芹, 孙聚龙, 张伟, 高阳, 周乐安, 飛田和義行. 富里酸对淤泥堆肥中重金属赋存形态的影响. 中国环境科学, 2025 , 45 (10) : 5596 -5606 .
Chu-xuan SONG, Shi-quan SUN, Li-juan LIU, Xue-ning LI, Cheng-yu ZHOU, Sui-qin YANG, Ju-long SUN, Wei ZHANG, Yang GAO, Le-an ZHOU, Hidawa YOSHIYUKI. Effects of fulvic acid on the speciation of heavy metals during dredged sediment composting[J]. China Environmental Science, 2025 , 45 (10) : 5596 -5606 .
Appendix
Less
Year 2025 volume 45 Issue 10
94
19
Cite this Article
BibTeX
Article Info
  • Receive Date：2025-03-10
  • Online Date：2026-10-08
  • Published：2025-10-20
Article Data
Affiliations
History
  • Received：2025-03-10
Funding
Affiliations
    1.School of Hydraulic and Ocean Engineering, Changsha University of Science and Technology, Changsha 410114, China
    2.Hunan Provincial Key Laboratory of Dongting Lake Water Environment Management and Ecological Restoration, Changsha 410114, China
    3.Sofuken Co., Ltd., Takadanobaba, Shinjuku ku, Tokyo 1-10-15-204, Japan
References
Share
https://castjournals.cast.org.cn/joweb/zghjkx/EN/
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House