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Almeida Medeiros J, Eduardo de Farias Silva C, Santos GKS, Almeida Alves do Nascimento M, Pimentel de Andrade F, Luciano Ferreira de Sá Filho M, Maria Villar da Gama B, Victor Oliveira Nascimento da Silva J, Maria Rosas Garcia Almeida R. Tertiary treatment of dairy wastewater applying a microalga-fungus consortium. ENVIRONMENTAL TECHNOLOGY 2024:1-17. [PMID: 38820593 DOI: 10.1080/09593330.2024.2357695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 05/13/2024] [Indexed: 06/02/2024]
Abstract
This paper aimed to apply filamentous fungi (Penicillium oxalicum and Cunninghamella echinulata), the microalga Tetradesmus obliquus and their co-culture in advanced treatment (tertiary treatment) of cheese whey. The bioremediation process was carried out in agitated flasks and bubble column bioreactors with different concentrations of chemical oxygen demand (COD) (223-1663 mg L-1), total nitrogen (TN) (13-61 mg L-1), and total phosphorus (TP) (3-26 mg L-1). The results obtained in shaken flasks showed a superiority of the consortium compared to the systems with separated species. In this sense, the treatment was carried out in a bubble column reactor, and the consortium formed by the microalga and the fungus C. echinulata showed a greater efficiency (at a light intensity of 100 µmol m-2 s-1), promoting by the symbiosis to reach removal efficiencies of up to 93.7, 78.8 and 93.4% for COD, TN and TP, respectively; meeting Brazilian and European standards for discharge into water bodies. In addition, no pH adjustment was required during the co-culture treatment, demonstrating the buffering effect of using these two types of microorganisms. Therefore, the use of the consortium formed by T. obliquus and C. echinulata as a remediator was highly promising to promote the advanced treatment of cheese whey.
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Colucci Cante R, Recupero A, Prata T, Nigro F, Passannanti F, Gallo M, Lentini G, Nigro R, Budelli AL. Valorisation through Lactic Fermentation of Industrial Wastewaters from a Bean Blanching Treatment. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9040350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
In recent years, scientific research and industries have been focusing on the application of biological treatments aimed at imparting functional properties to waste products from food industries according to the principles on which the circular economy model is based, namely, the recovery, valorisation, and reuse of wastes. This work aimed at exploring the possibility of valorising waters from the blanching process of dried navy beans through lactic acid fermentation using Lacticaseibacillus paracasei CBA L74 as a starter. Two samples at different solid concentrations (0.75 °Bx and 1.25 °Bx) were fermented, and, in both cases, a bacterial load of 8 Logs and a lactic acid concentration of approximately 1.3 g/L were reached, despite the lack of nutrients. An unusual pH trend, characterised by an initial decrease and unexpected final rise, was observed during the fermentation of both samples: simultaneously, an increase in protein content was observed, suggesting that the proteolytic action of the microorganism could be responsible for the release of pH-increasing substances. In both cases, a slight increase in total polyphenols (approximately 23.3–33.72%) and flavonoids (approximately 42.3–52%) due to fermentation was observed, with a corresponding improvement in antioxidant capacity (approximately 25.32–37.72%). A significant increase in saponin concentration was determined for the most concentrated blanching water (from 2.87 ± 0.28 to 6.68 ± 0.69 mgOAE/mL), leading to an improvement in foaming properties and an enhanced capacity to produce stable emulsions. The obtained results confirmed the possibility of reducing water consumption from blanching operations, as well as finding valorisation opportunities for this side stream through a safe and inexpensive fermentation treatment.
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Affiliation(s)
- Rosa Colucci Cante
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, P. Tecchio 80, 80125 Naples, Italy
- Department of Industrial Engineering, University of Niccolò Cusano, Via Don Carlo Gnocchi 3, 00166 Rome, Italy
| | - Angelica Recupero
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, P. Tecchio 80, 80125 Naples, Italy
| | - Tommaso Prata
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, P. Tecchio 80, 80125 Naples, Italy
| | - Federica Nigro
- I. T. P. Innovation and Technology Provider S.r.l., Via Bisignano a Chiaia 68, 80121 Naples, Italy
| | - Francesca Passannanti
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, P. Tecchio 80, 80125 Naples, Italy
- I. T. P. Innovation and Technology Provider S.r.l., Via Bisignano a Chiaia 68, 80121 Naples, Italy
| | - Marianna Gallo
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, P. Tecchio 80, 80125 Naples, Italy
- Department of Industrial Engineering, University of Niccolò Cusano, Via Don Carlo Gnocchi 3, 00166 Rome, Italy
- I. T. P. Innovation and Technology Provider S.r.l., Via Bisignano a Chiaia 68, 80121 Naples, Italy
| | - Giulia Lentini
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, P. Tecchio 80, 80125 Naples, Italy
| | - Roberto Nigro
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, P. Tecchio 80, 80125 Naples, Italy
| | - Andrea Luigi Budelli
- Heinz Innovation Center, Nieuwe Dukenburgseweg 19, 6534 AD Nijmegen Postbus 57, NL-6500 AB Nijmegen, The Netherlands
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Díaz AI, Laca A, Díaz M. Approach to a fungal treatment of a biologically treated landfill leachate. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 322:116085. [PMID: 36063693 DOI: 10.1016/j.jenvman.2022.116085] [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: 05/05/2022] [Revised: 08/20/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
White-rot fungi (WRF) have the ability to synthetize extracellular enzymes that could degrade recalcitrant pollutants. The aim of this work was to evaluate the use of P. chrysosporium to treat a biologically and physically pre-treated landfill leachate which high load of refractory compounds (COD>1000 mg/L, BOD5<50 mg/L) in order to reduce COD and colour. Batch tests were carried out at 26 °C and 135 rpm for 15 days. The soluble chemical oxygen demand (sCOD), soluble biological oxygen demand (sBOD5) and colour, as well as the lignin peroxidase (LiP) and manganese peroxidase (MnP) enzymatic activities were analysed. Besides, the effects of different operating conditions, i.e., pH control, permeate dilution and supplementation, on treatment efficacy were investigated. The control of pH was shown to be key for fungal treatment. In addition, it was found that the addition of carbon and nitrogen sources improved the enzymatic synthesis and the removals of sCOD and colour. Data here obtained open the possibility of using fungi for reducing the amount of recalcitrant pollutants still present in treated landfill leachates or similar effluents.
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Affiliation(s)
- Ana Isabel Díaz
- Department of Chemical and Environmental Engineering, University of Oviedo, C/Julián Clavería, s/n, E-33006, Oviedo, Asturias, Spain
| | - Adriana Laca
- Department of Chemical and Environmental Engineering, University of Oviedo, C/Julián Clavería, s/n, E-33006, Oviedo, Asturias, Spain.
| | - Mario Díaz
- Department of Chemical and Environmental Engineering, University of Oviedo, C/Julián Clavería, s/n, E-33006, Oviedo, Asturias, Spain
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Zhang Z, Zhao Y, Yang J, Guo J, Li J. Talaromyces cellulolyticus as a promising candidate for biofilm construction and treatment of textile wastewater. BIORESOURCE TECHNOLOGY 2021; 340:125718. [PMID: 34388660 DOI: 10.1016/j.biortech.2021.125718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 07/30/2021] [Accepted: 07/31/2021] [Indexed: 06/13/2023]
Abstract
Screening of microorganisms with broad-spectrum adaptability to extreme acid-base conditions and highperformance is essential for the construction of high-efficient biochemical wastewater treatment system. Herein, an acid-tolerant fungus isolated from acid medium was successfully identified through micromorphological observation and molecular characterization. The isolated fungus matched well with the filamentous fungus and was eventually identified as Talaromyces cellulolyticus. Considering the wide-range adaptability to pH condition (2.0-9.0), high cellulase activity (11.25 U mL-1), ideal biofilm-forming property (17.87 mg cm-3) on the surface of ceramsites, high tolerance to metal ions, and potential adsorption performance for aniline dyes, T. cellulolyticus issuitable for the construction of biofilm treatment system and treatment of textile wastewater based on the investigation of the removal efficiency of chemical oxygen demand and chromaticity of the synthetic textile wastewater. A promising candidate filamentous fungus for the treatment of textile wastewater was provided.
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Affiliation(s)
- Zhifeng Zhang
- College of Life Science, Shanxi Normal University, Linfen, Shanxi 041000, China.
| | - Yu Zhao
- College of Life Science, Shanxi Normal University, Linfen, Shanxi 041000, China
| | - Jiajia Yang
- College of Life Science, Shanxi Normal University, Linfen, Shanxi 041000, China
| | - Junping Guo
- College of Life Science, Shanxi Normal University, Linfen, Shanxi 041000, China
| | - Jingping Li
- College of Life Sciences, Beijing Normal University, Beijing 100875, China
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