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Smooth Vetch (Vicia villosa var.) Coupled with Ball-Milled Composite Mineral Derived from Shell Powder and Phosphate Rock for Remediation of Cadmium-Polluted Farmland: Insights into Synergetic Mechanisms
ACS ES&T Engineering ( IF 7.4 ) Pub Date : 2024-07-16 , DOI: 10.1021/acsestengg.4c00177 Jianhua Qu 1 , Yuhui Li 1 , Fuxuan Bi 1 , Xiaoyang Liu 1 , Zonghao Dong 1 , Hongli Fan 2 , Mei Yin 3 , Libo Fu 3 , Weidong Cao 2 , Ying Zhang 1
ACS ES&T Engineering ( IF 7.4 ) Pub Date : 2024-07-16 , DOI: 10.1021/acsestengg.4c00177 Jianhua Qu 1 , Yuhui Li 1 , Fuxuan Bi 1 , Xiaoyang Liu 1 , Zonghao Dong 1 , Hongli Fan 2 , Mei Yin 3 , Libo Fu 3 , Weidong Cao 2 , Ying Zhang 1
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Herein, a ball-milled composite mineral derived from shell powder and phosphate rock (BSPR) was innovatively coupled with smooth vetch (SV) planting to remediate Cd-polluted soil. The results showed that BSPR coupled with SV could reduce the bioavailability of Cd in soil by 68.1%, which was 2.2 and 3.4 times those of BSPR (31.1%) and SV (20.0%) alone, respectively. The outstanding passivation performance was confirmed to be due to the synergistic effect of BSPR and SV. Specifically, the employment of BSPR not only increased the biomass of SV but also promoted its decomposition, which directly led to the conversion of SV into more humic acid (HA). Under the action of HA, more calcium and phosphorus were released by BSPR and combined with Cd to form stable compounds (e.g., Cd3(PO4)2, Cd5(PO4)3Cl, and CdnCa5–n(PO4)3OH). Amazingly, due to the excellent performance of synergetic BSPR and SV on Cd passivation and soil improvement, the Cd content in pepper fruit decreased by 38.2% (6.3 times that of SV), and the fresh weight and Ca content of pepper fruit were enhanced by 28.2% and 43.4% (6.7 and 22.8 times that of SV, respectively). Overall, this study provided a novel strategy, i.e., green manure coupled with mineral, for simultaneous remediation of Cd-contaminated farmland and enhancement of pepper’s yield and quality, thus achieving “killing three birds with one stone”.
中文翻译：
野豌豆 (Vicia villosa var.) 与贝壳粉和磷酸盐岩衍生的球磨复合矿物相结合修复镉污染农田：深入了解协同机制
在此，创新地将贝壳粉和磷矿衍生的球磨复合矿物（BSPR）与野豌豆（SV）种植相结合，以修复镉污染的土壤。结果表明，BSPR与SV联合施用可使土壤中Cd的生物有效性降低68.1%，分别是单独BSPR（31.1%）和SV（20.0%）的2.2倍和3.4倍。优异的钝化性能被证实是由于BSPR和SV的协同效应。具体来说，BSPR的使用不仅增加了SV的生物量，而且促进了其分解，直接导致SV转化为更多的腐殖酸（HA）。在HA的作用下，BSPR释放出更多的钙和磷，并与Cd结合形成稳定的化合物（例如Cd 3 (PO 4 ) 2 、Cd 5 (PO 4 ) 3 Cl和Cd n Ca 5– n ( PO 4 ) 3 OH)。令人惊奇的是，由于BSPR和SV协同在Cd钝化和土壤改良方面的优异表现，辣椒果实中的Cd含量下降了38.2%（SV的6.3倍），并且辣椒果实的鲜重和Ca含量提高了28.2%和43.4%（分别是SV的6.7和22.8倍）。总体而言，本研究为同时修复镉污染农田和提高辣椒产量和品质提供了一种新的策略，即绿肥与矿物质结合，从而实现“一石三鸟”。
更新日期：2024-07-16
中文翻译：
野豌豆 (Vicia villosa var.) 与贝壳粉和磷酸盐岩衍生的球磨复合矿物相结合修复镉污染农田：深入了解协同机制
在此，创新地将贝壳粉和磷矿衍生的球磨复合矿物（BSPR）与野豌豆（SV）种植相结合，以修复镉污染的土壤。结果表明，BSPR与SV联合施用可使土壤中Cd的生物有效性降低68.1%，分别是单独BSPR（31.1%）和SV（20.0%）的2.2倍和3.4倍。优异的钝化性能被证实是由于BSPR和SV的协同效应。具体来说，BSPR的使用不仅增加了SV的生物量，而且促进了其分解，直接导致SV转化为更多的腐殖酸（HA）。在HA的作用下，BSPR释放出更多的钙和磷，并与Cd结合形成稳定的化合物（例如Cd 3 (PO 4 ) 2 、Cd 5 (PO 4 ) 3 Cl和Cd n Ca 5– n ( PO 4 ) 3 OH)。令人惊奇的是，由于BSPR和SV协同在Cd钝化和土壤改良方面的优异表现，辣椒果实中的Cd含量下降了38.2%（SV的6.3倍），并且辣椒果实的鲜重和Ca含量提高了28.2%和43.4%（分别是SV的6.7和22.8倍）。总体而言，本研究为同时修复镉污染农田和提高辣椒产量和品质提供了一种新的策略，即绿肥与矿物质结合，从而实现“一石三鸟”。
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