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Najar-Almanzor CE, Velasco-Iglesias KD, Solis-Bañuelos M, González-Díaz RL, Guerrero-Higareda S, Fuentes-Carrasco OJ, García-Cayuela T, Carrillo-Nieves D. Chlorella vulgaris-mediated bioremediation of food and beverage wastewater from industries in Mexico: Results and perspectives towards sustainability and circular economy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 940:173753. [PMID: 38838494 DOI: 10.1016/j.scitotenv.2024.173753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/27/2024] [Accepted: 06/02/2024] [Indexed: 06/07/2024]
Abstract
The food and beverage industries in Mexico generate substantial effluents, including nejayote, cheese-whey, and tequila vinasses, which pose significant environmental challenges due to their extreme physicochemical characteristics and excessive organic load. This study aimed to assess the potential of Chlorella vulgaris in bioremediating these complex wastewaters while also producing added-value compounds. A UV mutagenesis treatment (40 min) enhanced C. vulgaris adaptability to grow in the effluent conditions. Robust growth was observed in all three effluents, with nejayote identified as the optimal medium. Physicochemical measurements conducted pre- and post-cultivation revealed notable reductions of pollutants in nejayote, including complete removal of nitrogen and phosphates, and an 85 % reduction in COD. Tequila vinasses exhibited promise with a 66 % reduction in nitrogen and a 70 % reduction in COD, while cheese-whey showed a 17 % reduction in phosphates. Regarding valuable compounds, nejayote yielded the highest pigment (1.62 mg·g-1) and phenolic compound (3.67 mg·g-1) content, while tequila vinasses had the highest protein content (16.83 %). The main highlight of this study is that C. vulgaris successfully grew in 100 % of the three effluents (without additional water or nutrients), demonstrating its potential for sustainable bioremediation and added-value compound production. When grown in 100 % of the effluents, they become a sustainable option since they don't require an input of fresh water and therefore do not contribute to water scarcity. These findings offer a practical solution for addressing environmental challenges in the food and beverage industries within a circular economy framework.
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Affiliation(s)
- Cesar E Najar-Almanzor
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201 Zapopan, Jalisco, Mexico
| | - Karla D Velasco-Iglesias
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201 Zapopan, Jalisco, Mexico
| | - Minerva Solis-Bañuelos
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201 Zapopan, Jalisco, Mexico
| | - Rosa Leonor González-Díaz
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201 Zapopan, Jalisco, Mexico
| | - Santiago Guerrero-Higareda
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201 Zapopan, Jalisco, Mexico
| | - Oscar J Fuentes-Carrasco
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201 Zapopan, Jalisco, Mexico
| | - Tomás García-Cayuela
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201 Zapopan, Jalisco, Mexico
| | - Danay Carrillo-Nieves
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona No. 2514, 45201 Zapopan, Jalisco, Mexico.
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Awathare P, Hait S, Gawali S, Nayak M, Kumar NR, Guldhe A. Developing biomass augmentation strategy for cultivation of Marvania coccoides using fruit waste and wastewater based growth medium for biodiesel production. BIORESOURCE TECHNOLOGY 2024; 404:130911. [PMID: 38821425 DOI: 10.1016/j.biortech.2024.130911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/25/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
Microalgae cultivation using waste as nutrient source can minimize the use of expensive chemical nutrients and valuable freshwater. In present work, novel microalgae Marvania coccoides was cultivated in fruit waste (FW) and wastewater (WW) based growth medium. To further augment metabolites and biomass, the culture was supplemented with phytohormone, kinetin (K). Various pre-treatment methods were investigated for improving the nutrient release and bacterial load reduction in waste-based medium. Phytohormone supplemented fruit waste and wastewater media (WW + FW + K) showed improved biomass productivity of 117.14 mg.L-1.d-1 compared to both waste-based and synthetic medium. Biomass harvested from WW + FW + K showed increased lipid content (22 %) as compared to lipid content (19 %) of biomass from synthetic medium. Biodiesel yield of 91.50 % was observed with fatty acids C16:0, C16:2, C18:0, C18:1, C18:2, C19:0, C20:1, C20:2 and C22:1 in composition. M. coccoides can be cultivated in waste medium and used as promising feedstock for production of biodiesel.
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Affiliation(s)
- Pranay Awathare
- Amity Institute of Biotechnology, Amity University Maharashtra, Mumbai 410206, India
| | - Sinchan Hait
- Amity Institute of Biotechnology, Amity University Maharashtra, Mumbai 410206, India
| | - Sushant Gawali
- Amity Institute of Biotechnology, Amity University Maharashtra, Mumbai 410206, India
| | - Manoranjan Nayak
- Biorefinery and Bioenergy Research Laboratory, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201313, India
| | | | - Abhishek Guldhe
- Amity Institute of Biotechnology, Amity University Maharashtra, Mumbai 410206, India.
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Liu L, Zhou Z, Gong G, Wu B, Todhanakasem T, Li J, Zhuang Y, He M. Economic co-production of cellulosic ethanol and microalgal biomass through efficient fixation of fermentation carbon dioxide. BIORESOURCE TECHNOLOGY 2024; 396:130420. [PMID: 38336213 DOI: 10.1016/j.biortech.2024.130420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
An integrated process for the co-production of cellulosic ethanol and microalgal biomass by fixing CO2 generated from bioethanol fermentation is proposed. Specifically, over one-fifth of the fermentative carbon was converted into high-purity CO2 during ethanol production. The optimal concentration of 4 % CO2 was identified for the growth and metabolism of Chlorella sp. BWY-1. A multiple short-term intermittent CO2 supply system was established to efficiently fix and recycle the waste CO2. Using this system, economical co-production of cellulosic ethanol by Zymomonas mobilis and microalgal biomass in biogas slurry wastewater was achieved, resulting in the production of ethanol at a rate of 0.4 g/L/h and a fixed fermentation CO2 of 3.1 g/L/d. Moreover, the amounts of algal biomass and chlorophyll a increased by over 50 % and two-fold, respectively. Through techno-economic analysis, the integrated process demonstrated its cost-effectiveness for cellulosic ethanol production. This study presents an innovative approach to a low-carbon circular bioeconomy.
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Affiliation(s)
- Linpei Liu
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Zheng Zhou
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Guiping Gong
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Bo Wu
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China.
| | - Tatsaporn Todhanakasem
- School of Food Industry, King Mongkut's Institute of Technology, Ladkrabang, Bangkok 10520, Thailand
| | - Jianting Li
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Yong Zhuang
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
| | - Mingxiong He
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
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