Simultaneous removal of calcium, cadmium and tetracycline from reverse osmosis wastewater by sycamore deciduous biochar, shell powder and polyurethane sponge combined with biofilm reactor

Wang, Xinjie; Li, Jiawei; Xu, Liang; Su, Junfeng; Wang, Zhao; Li, Xuan

doi:10.1016/j.biortech.2023.130215

Cited by 8 publications

(2 citation statements)

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“…10 Moreover, shell powder (SP) is regarded as a natural and harmless soil conditioner, which can rapidly provide abundant binding sites for Cd. 11 Meanwhile, calcium salts may stimulate related soil microorganisms, thereby indirectly improving the P release efficiency of PR. Thus, we reasonably hypothesized that a highly efficient Cd passivator can be prepared by coupling PR and SP.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Importantly, PR has the advantages of being cheap and available, making it suitable for application in farmland . Moreover, shell powder (SP) is regarded as a natural and harmless soil conditioner, which can rapidly provide abundant binding sites for Cd . Meanwhile, calcium salts may stimulate related soil microorganisms, thereby indirectly improving the P release efficiency of PR.…”

Section: Introductionmentioning

confidence: 99%

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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

Qu,

Li,

et al. 2024

ACS EST Eng.

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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 Cdpolluted 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., Cd 3 (PO 4 ) 2 , Cd 5 (PO 4 ) 3 Cl, and Cd n Ca 5−n (PO 4 ) 3 OH). 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".

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%