{"title":"Sustainable management of Alternanthera philoxeroides by anaerobic digestion: optimization of food to microorganism ratio and kinetic study","authors":"N. Kanaujia, A. Roy, J. Singh","doi":"10.1007/s13762-024-06109-2","DOIUrl":null,"url":null,"abstract":"<div><p>Alternanthera philoxeroides <i>(A. philoxeroides)</i> is a noxious aquatic weed that is classified as one of the most destructive weeds in the world since it invades both aquatic and terrestrial habitats. The current study focused on the anaerobic digestion of <i>A. philoxeroides,</i> and aimed to identify the optimal ratio of food to microorganisms among 1.5, 2, 2.5, and 3 A. philoxeroides weed successfully optimized by producing a considerable amount of biogas through anaerobic digestion. The highest cumulative biogas production was obtained from food to microorganism ratio 2.5 (2696.31 ± 31.87 mL) followed by ratio 3 (2387.5 ± 96.87 mL), ratio 2 (1844.05 ± 15.15), and ratio 1.5 (1758.8 ± 21.4 mL) and lowest cumulative biogas was found in control (658.28 ± 38.35 mL). Management of <i>A. philoxeroides</i> weed by anaerobic digestion to fulfill the Sustainable development goal is also addressed<b>.</b> X-ray diffraction, energy dispersive spectroscopy, scanning electron microscopy, and Fourier-transform infrared spectroscopy were used to analyze both undigested and digested A. philoxeroides. According to the batch investigation, <i>A. philoxeroides</i> with food to microorganism ratio of 2.5 has significant potential for biogas generation as it yields 4.09-fold higher biogas productions than the control. The modified Gompertz model and logistic function model precisely depicted the degradation process and the kinetic behavior of cumulative biogas. Anaerobic digestion is supposed to be a cost-effective alternative for the management of the noxious weed <i>A. philoxeroides</i>.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 8","pages":"7037 - 7052"},"PeriodicalIF":3.0000,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Environmental Science and Technology","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s13762-024-06109-2","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Alternanthera philoxeroides (A. philoxeroides) is a noxious aquatic weed that is classified as one of the most destructive weeds in the world since it invades both aquatic and terrestrial habitats. The current study focused on the anaerobic digestion of A. philoxeroides, and aimed to identify the optimal ratio of food to microorganisms among 1.5, 2, 2.5, and 3 A. philoxeroides weed successfully optimized by producing a considerable amount of biogas through anaerobic digestion. The highest cumulative biogas production was obtained from food to microorganism ratio 2.5 (2696.31 ± 31.87 mL) followed by ratio 3 (2387.5 ± 96.87 mL), ratio 2 (1844.05 ± 15.15), and ratio 1.5 (1758.8 ± 21.4 mL) and lowest cumulative biogas was found in control (658.28 ± 38.35 mL). Management of A. philoxeroides weed by anaerobic digestion to fulfill the Sustainable development goal is also addressed. X-ray diffraction, energy dispersive spectroscopy, scanning electron microscopy, and Fourier-transform infrared spectroscopy were used to analyze both undigested and digested A. philoxeroides. According to the batch investigation, A. philoxeroides with food to microorganism ratio of 2.5 has significant potential for biogas generation as it yields 4.09-fold higher biogas productions than the control. The modified Gompertz model and logistic function model precisely depicted the degradation process and the kinetic behavior of cumulative biogas. Anaerobic digestion is supposed to be a cost-effective alternative for the management of the noxious weed A. philoxeroides.
期刊介绍：
International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management.
A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made.
The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.
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