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。

IF 1.9 4区 环境科学与生态学 Q4 ENGINEERING, ENVIRONMENTAL
Meenakshi Dewangan, Vivek Kumar Singh, Awanish Kumar
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引用次数: 0

摘要

随着人们对塑料污染和气候变化的日益关注,以微藻为基础的生物塑料为石油衍生塑料提供了一个有希望的替代品。本研究通过对普通小球藻在污水生物反应器中的培养,探讨了普通小球藻在生物塑料合成和环境修复中的双重作用。以废水为营养源,提取20 mg/L聚羟基烷酸酯(PHA)时,C. vulgaris的生物量为3.472 g/L。傅里叶变换红外光谱(FTIR)验证了pha特异性酯官能团的存在,证实了其在生物塑料应用中的适用性。此外,栽培过程在三天内完全减少了游离二氧化碳,证明了有效的碳封存。废水污染物(包括COD、BOD、氮和磷)的显著下降凸显了微藻的生物修复能力,使其成为可持续废水处理的有希望的候选者。本研究介绍了一种成本效益高、自我维持的微藻生物工艺,该工艺在实现高产PHA生产、完全二氧化碳封存和高效废水解毒的同时,消除了对合成营养物质的需求。通过整合三个基本的可持续发展目标——生物塑料生产、碳捕获和水净化——这项工作弥合了生物基材料和环境保护之间的差距。结果证实,草属植物是一种多功能生物资源,既支持生物聚合物合成,又支持减缓气候变化。这项工作通过展示微藻生物技术在大规模闭环生物制造方面的潜力,为减少塑料废物和温室气体排放提供了一种环保、可扩展的解决方案,同时促进了可持续的工业实践,从而推动了微藻生物技术的发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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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来源期刊
CiteScore
4.10
自引率
4.80%
发文量
93
审稿时长
3.0 months
期刊介绍: 14 issues per year Abstracted/indexed in: BioSciences Information Service of Biological Abstracts (BIOSIS), CAB ABSTRACTS, CEABA, Chemical Abstracts & Chemical Safety NewsBase, Current Contents/Agriculture, Biology, and Environmental Sciences, Elsevier BIOBASE/Current Awareness in Biological Sciences, EMBASE/Excerpta Medica, Engineering Index/COMPENDEX PLUS, Environment Abstracts, Environmental Periodicals Bibliography & INIST-Pascal/CNRS, National Agriculture Library-AGRICOLA, NIOSHTIC & Pollution Abstracts, PubSCIENCE, Reference Update, Research Alert & Science Citation Index Expanded (SCIE), Water Resources Abstracts and Index Medicus/MEDLINE.
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