Eco-Friendly and Sustainable Remediation of Copper- and Zinc-Contaminated Farmland
Copper and zinc are metals commonly used in industry. However, improperly disposed copper and zinc pollute soil seriously. In farmland where the concentrations of copper and zinc exceeded regulatory standards and farming has been banned for many years, we measured the copper and zinc concentrations...
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MDPI AG
2025-04-01
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| author | Chang-Chao Chen Pei-Cheng Cheng Chin-Yuan Huang Min-Siou Lin Shu-Fen Cheng |
| author_facet | Chang-Chao Chen Pei-Cheng Cheng Chin-Yuan Huang Min-Siou Lin Shu-Fen Cheng |
| author_sort | Chang-Chao Chen |
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| description | Copper and zinc are metals commonly used in industry. However, improperly disposed copper and zinc pollute soil seriously. In farmland where the concentrations of copper and zinc exceeded regulatory standards and farming has been banned for many years, we measured the copper and zinc concentrations in soil. The copper concentration ranged from 30.2 to 1082.3 mg/kg, while the zinc concentration was between 200.2 and 3335.3 mg/kg. To explore the correlation between the concentration of copper and zinc in soil and plants and plant growth, Pennisetum was chosen as the test crop. The economic and carbon reduction benefits of planting Pennisetum in copper- and zinc-polluted farmland were also investigated. The results indicated that the concentration levels of copper and zinc were not significantly impacted, and neither was the growth of Pennisetum. Farming Pennisetum produces a total of about 1100 tons of biomass per hectare per year. The income per hectare was about USD 48,000 per year. Pennisetum captures 578.8 tons of carbon every year, equivalent to 2124.2 ton-CO<sub>2</sub>e. When used as fuel, it provides 23,649 GJ of bioenergy. Therefore, Pennisetum is an appropriate plant for the green and sustainable remediation of polluted soil. |
| format | Article |
| id | doaj-art-5620dda3e95d4c858591df2feb09dd4f |
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| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Engineering Proceedings |
| spelling | doaj-art-5620dda3e95d4c858591df2feb09dd4f2025-08-20T02:21:06ZengMDPI AGEngineering Proceedings2673-45912025-04-019111310.3390/engproc2025091013Eco-Friendly and Sustainable Remediation of Copper- and Zinc-Contaminated FarmlandChang-Chao Chen0Pei-Cheng Cheng1Chin-Yuan Huang2Min-Siou Lin3Shu-Fen Cheng4Institute of Biochemical Technology, Chaoyang University of Technology, Taichung 41349, TaiwanInstitute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, TaiwanDepartment of Environmental Engineering and Management, Chaoyang University of Technology, Taichung 41349, TaiwanInstitute of Biochemical Technology, Chaoyang University of Technology, Taichung 41349, TaiwanDepartment of Environmental Engineering and Management, Chaoyang University of Technology, Taichung 41349, TaiwanCopper and zinc are metals commonly used in industry. However, improperly disposed copper and zinc pollute soil seriously. In farmland where the concentrations of copper and zinc exceeded regulatory standards and farming has been banned for many years, we measured the copper and zinc concentrations in soil. The copper concentration ranged from 30.2 to 1082.3 mg/kg, while the zinc concentration was between 200.2 and 3335.3 mg/kg. To explore the correlation between the concentration of copper and zinc in soil and plants and plant growth, Pennisetum was chosen as the test crop. The economic and carbon reduction benefits of planting Pennisetum in copper- and zinc-polluted farmland were also investigated. The results indicated that the concentration levels of copper and zinc were not significantly impacted, and neither was the growth of Pennisetum. Farming Pennisetum produces a total of about 1100 tons of biomass per hectare per year. The income per hectare was about USD 48,000 per year. Pennisetum captures 578.8 tons of carbon every year, equivalent to 2124.2 ton-CO<sub>2</sub>e. When used as fuel, it provides 23,649 GJ of bioenergy. Therefore, Pennisetum is an appropriate plant for the green and sustainable remediation of polluted soil.https://www.mdpi.com/2673-4591/91/1/13green sustainablephytoremediationcarbon capturebioenergy |
| spellingShingle | Chang-Chao Chen Pei-Cheng Cheng Chin-Yuan Huang Min-Siou Lin Shu-Fen Cheng Eco-Friendly and Sustainable Remediation of Copper- and Zinc-Contaminated Farmland Engineering Proceedings green sustainable phytoremediation carbon capture bioenergy |
| title | Eco-Friendly and Sustainable Remediation of Copper- and Zinc-Contaminated Farmland |
| title_full | Eco-Friendly and Sustainable Remediation of Copper- and Zinc-Contaminated Farmland |
| title_fullStr | Eco-Friendly and Sustainable Remediation of Copper- and Zinc-Contaminated Farmland |
| title_full_unstemmed | Eco-Friendly and Sustainable Remediation of Copper- and Zinc-Contaminated Farmland |
| title_short | Eco-Friendly and Sustainable Remediation of Copper- and Zinc-Contaminated Farmland |
| title_sort | eco friendly and sustainable remediation of copper and zinc contaminated farmland |
| topic | green sustainable phytoremediation carbon capture bioenergy |
| url | https://www.mdpi.com/2673-4591/91/1/13 |
| work_keys_str_mv | AT changchaochen ecofriendlyandsustainableremediationofcopperandzinccontaminatedfarmland AT peichengcheng ecofriendlyandsustainableremediationofcopperandzinccontaminatedfarmland AT chinyuanhuang ecofriendlyandsustainableremediationofcopperandzinccontaminatedfarmland AT minsioulin ecofriendlyandsustainableremediationofcopperandzinccontaminatedfarmland AT shufencheng ecofriendlyandsustainableremediationofcopperandzinccontaminatedfarmland |