新型保水材料联合黑曲霉对新疆铁尾矿渣的改良效果

李琪; 胡成博; 唐佳豪; 杨镒霞; 段一然; 沈逸凡; 苟林平; 王双成; 李强; 裴向军

doi:10.3799/dqkx.2026.152

Volume 51 Issue 9

Sep. 2026

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Article Navigation > Earth Science > 2026 > 51(9): 3445-3456

Li Qi, Hu Chengbo, Tang Jiahao, Yang Yixia, Duan Yiran, Shen Yifan, Gou Linping, Wang Shuangcheng, Li Qiang, Pei Xiangjun, 2026. Improvement of Xinjiang Iron Tailings Using a Novel Water-Retaining Material Combined with Aspergillus niger. Earth Science, 51(9): 3445-3456. doi: 10.3799/dqkx.2026.152

Citation:

Li Qi, Hu Chengbo, Tang Jiahao, Yang Yixia, Duan Yiran, Shen Yifan, Gou Linping, Wang Shuangcheng, Li Qiang, Pei Xiangjun, 2026. Improvement of Xinjiang Iron Tailings Using a Novel Water-Retaining Material Combined with Aspergillus niger. Earth Science, 51(9): 3445-3456. doi: 10.3799/dqkx.2026.152

Citation:

Li Qi, Hu Chengbo, Tang Jiahao, Yang Yixia, Duan Yiran, Shen Yifan, Gou Linping, Wang Shuangcheng, Li Qiang, Pei Xiangjun, 2026. Improvement of Xinjiang Iron Tailings Using a Novel Water-Retaining Material Combined with Aspergillus niger. Earth Science, 51(9): 3445-3456. doi: 10.3799/dqkx.2026.152

PDF( 3250 KB)

Improvement of Xinjiang Iron Tailings Using a Novel Water-Retaining Material Combined with Aspergillus niger

doi: 10.3799/dqkx.2026.152

Li Qi^{1, 2, 3
,
,},
Hu Chengbo^{1, 2},
Tang Jiahao^{1, 2},
Yang Yixia²,
Duan Yiran¹,
Shen Yifan²,
Gou Linping^{1, 2},
Wang Shuangcheng⁴,
Li Qiang⁴,
Pei Xiangjun^{1, 2, 3
,
,
,}

1.
College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
2.
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China
3.
Tianfu Yongxing Laboratory, Chengdu 610213, China
4.
Xinjiang Uygur Autonomous Region Hydrogeological and Environmental Investigation Center, Urumqi 830000, China

Received Date: 2026-01-28
Publish Date: 2026-09-25

Abstract

Abstract

This study investigated the synergistic effects of Aspergillus niger spore powder and a novel water-retaining material (SJP) on iron tailings from the Awulale iron ore belt. An indoor pot experiment was conducted to determine plant growth, tailings physicochemical properties, soil enzyme activities, and rhizosphere microbial community characteristics, and a comprehensive evaluation was performed to identify the optimal amendment combination. The treatments significantly promoted alfalfa growth, with plant height increasing by 166.67% under the optimal treatment relative to the corresponding control. Tailings moisture content, nutrient concentrations, and enzyme activities increased by 203.61%, 87.92%-1 935.67%, and 186.74%-1 532.24%, respectively. The treatments also altered the rhizosphere microbial community structure, while functional prediction indicated significant enrichment of fundamental metabolic pathways, including glycolysis and amino acid biosynthesis. The optimal combination comprised an iron tailings-to-nutrient soil mass ratio of 1∶0, an SJP concentration of 1%, and 2.0 g of A. niger spore powder. These findings provide a technical reference for the ecological restoration of iron tailings in Xinjiang.
- iron tailings improvement,
- ecological restoration,
- soil stabilization and water retention materials SJP,
- Aspergillus niger,
- soil microorganisms,
- sustainable development

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References(46)

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