{"title":"利用综合方法揭示普通小球藻在可持续生物塑料生产、碳封存和废水处理方面的潜力。","authors":"Meenakshi Dewangan, Vivek Kumar Singh, Awanish Kumar","doi":"10.1080/10934529.2025.2493002","DOIUrl":null,"url":null,"abstract":"<p><p>With rising concerns over plastic pollution and climate change, microalgae-based bioplastics offer a promising alternative to petroleum-derived plastics. This study explores the dual role of <i>Chlorella vulgaris</i> in bioplastic synthesis and environmental remediation through its cultivation in a wastewater-fed bioreactor. By leveraging wastewater as a nutrient source, <i>C. vulgaris</i> achieved a biomass yield of 3.472 g/L, with 20 mg/L of polyhydroxyalkanoate (PHA) extracted. Fourier Transform Infrared (FTIR) spectroscopy validated the presence of PHA-specific ester functional groups, confirming its suitability for bioplastic applications. Additionally, the cultivation process resulted in a complete reduction of free CO<sub>2</sub> within three days, demonstrating efficient carbon sequestration. Significant declines in wastewater contaminants, including COD, BOD, nitrogen, and phosphorus, highlight the microalga's bioremediation capabilities, making it a promising candidate for sustainable wastewater treatment. This study introduces a cost-efficient, self-sustaining microalgal bioprocess that eliminates the need for synthetic nutrients while achieving high-yield PHA production, complete CO<sub>2</sub> sequestration, and efficient wastewater detoxification. By integrating three essential sustainability goals- bioplastic production, carbon capture, and water purification- this work bridges the gap between bio-based materials and environmental conservation. The results affirm <i>C. vulgaris</i> as a multifunctional bioresource that supports both biopolymer synthesis and climate change mitigation. This work advances microalgal biotechnology by demonstrating its potential for large-scale, closed-loop biomanufacturing, providing an eco-friendly, scalable solution for reducing plastic waste and greenhouse gas emissions while promoting sustainable industrial practices.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":"60 1","pages":"46-53"},"PeriodicalIF":1.9000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Unraveling the potential of <i>Chlorella vulgaris</i> in sustainable bioplastic production, carbon sequestration, and wastewater treatment using integrated approaches.\",\"authors\":\"Meenakshi Dewangan, Vivek Kumar Singh, Awanish Kumar\",\"doi\":\"10.1080/10934529.2025.2493002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>With rising concerns over plastic pollution and climate change, microalgae-based bioplastics offer a promising alternative to petroleum-derived plastics. This study explores the dual role of <i>Chlorella vulgaris</i> in bioplastic synthesis and environmental remediation through its cultivation in a wastewater-fed bioreactor. By leveraging wastewater as a nutrient source, <i>C. vulgaris</i> achieved a biomass yield of 3.472 g/L, with 20 mg/L of polyhydroxyalkanoate (PHA) extracted. Fourier Transform Infrared (FTIR) spectroscopy validated the presence of PHA-specific ester functional groups, confirming its suitability for bioplastic applications. Additionally, the cultivation process resulted in a complete reduction of free CO<sub>2</sub> within three days, demonstrating efficient carbon sequestration. Significant declines in wastewater contaminants, including COD, BOD, nitrogen, and phosphorus, highlight the microalga's bioremediation capabilities, making it a promising candidate for sustainable wastewater treatment. This study introduces a cost-efficient, self-sustaining microalgal bioprocess that eliminates the need for synthetic nutrients while achieving high-yield PHA production, complete CO<sub>2</sub> sequestration, and efficient wastewater detoxification. By integrating three essential sustainability goals- bioplastic production, carbon capture, and water purification- this work bridges the gap between bio-based materials and environmental conservation. The results affirm <i>C. vulgaris</i> as a multifunctional bioresource that supports both biopolymer synthesis and climate change mitigation. This work advances microalgal biotechnology by demonstrating its potential for large-scale, closed-loop biomanufacturing, providing an eco-friendly, scalable solution for reducing plastic waste and greenhouse gas emissions while promoting sustainable industrial practices.</p>\",\"PeriodicalId\":15671,\"journal\":{\"name\":\"Journal of Environmental Science and Health Part A-toxic\\\\/hazardous Substances & Environmental Engineering\",\"volume\":\"60 1\",\"pages\":\"46-53\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2025-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Environmental Science and Health Part A-toxic\\\\/hazardous Substances & Environmental Engineering\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1080/10934529.2025.2493002\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/4/28 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/10934529.2025.2493002","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/4/28 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Unraveling the potential of Chlorella vulgaris in sustainable bioplastic production, carbon sequestration, and wastewater treatment using integrated approaches.
With rising concerns over plastic pollution and climate change, microalgae-based bioplastics offer a promising alternative to petroleum-derived plastics. This study explores the dual role of Chlorella vulgaris in bioplastic synthesis and environmental remediation through its cultivation in a wastewater-fed bioreactor. By leveraging wastewater as a nutrient source, C. vulgaris achieved a biomass yield of 3.472 g/L, with 20 mg/L of polyhydroxyalkanoate (PHA) extracted. Fourier Transform Infrared (FTIR) spectroscopy validated the presence of PHA-specific ester functional groups, confirming its suitability for bioplastic applications. Additionally, the cultivation process resulted in a complete reduction of free CO2 within three days, demonstrating efficient carbon sequestration. Significant declines in wastewater contaminants, including COD, BOD, nitrogen, and phosphorus, highlight the microalga's bioremediation capabilities, making it a promising candidate for sustainable wastewater treatment. This study introduces a cost-efficient, self-sustaining microalgal bioprocess that eliminates the need for synthetic nutrients while achieving high-yield PHA production, complete CO2 sequestration, and efficient wastewater detoxification. By integrating three essential sustainability goals- bioplastic production, carbon capture, and water purification- this work bridges the gap between bio-based materials and environmental conservation. The results affirm C. vulgaris as a multifunctional bioresource that supports both biopolymer synthesis and climate change mitigation. This work advances microalgal biotechnology by demonstrating its potential for large-scale, closed-loop biomanufacturing, providing an eco-friendly, scalable solution for reducing plastic waste and greenhouse gas emissions while promoting sustainable industrial practices.
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