1
|
Hammond CR, Loge FJ. Wastewater treatment with microalgal-bacterial aggregates: The tradeoff between energy savings and footprint requirements. BIORESOURCE TECHNOLOGY 2024; 395:130270. [PMID: 38158093 DOI: 10.1016/j.biortech.2023.130270] [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: 10/31/2023] [Revised: 12/26/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Microalgal-bacterial aggregates (MBAs) have recently attracted significant attention as a potential replacement for conventional, suspended-growth wastewater treatment processes. This article evaluates MBAs for full-scale implementation from the perspective of oxygen supply, land use, and energy savings. The results suggest that under ideal conditions, photosynthesis and atmospheric diffusion would provide at most only 2.7% of the oxygen demand in a conventionally designed, nitrifying activated sludge process, which is equivalent to approximately 1.5% of typical treatment plant-wide energy requirements. The results also suggest that a wastewater treatment process using MBAs and relying on solar photosynthesis and atmospheric diffusion for oxygen would have nearly the same footprint as an equivalent well-mixed wastewater treatment pond. While photosynthesis and passive atmospheric diffusion are capable of providing significant oxygen for suspended-growth wastewater treatment processes, the tradeoffs between footprint requirements and energy savings should be carefully considered.
Collapse
Affiliation(s)
- Charles R Hammond
- University of California, Davis, Department of Civil and Environmental Engineering, 1 Shields Avenue, Davis, CA 95616, USA
| | - Frank J Loge
- University of California, Davis, Department of Civil and Environmental Engineering, 1 Shields Avenue, Davis, CA 95616, USA.
| |
Collapse
|
2
|
Janpum C, Pombubpa N, Monshupanee T, Incharoensakdi A, In-Na P. Advancement on mixed microalgal-bacterial cultivation systems for nitrogen and phosphorus recoveries from wastewater to promote sustainable bioeconomy. J Biotechnol 2022; 360:198-210. [PMID: 36414126 DOI: 10.1016/j.jbiotec.2022.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 11/07/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
Abstract
Biological wastewater treatment is a promising and environmentally friendly method that utilises living microorganisms to remediate water and enable recovery or conversion of contaminants into valuable products. For many decades, microalgae and cyanobacteria, photosynthetic living microorganisms, have been explored extensively for wastewater bioremediation. They can be used for recovering valuable nutrients such as nitrogen and phosphorous from secondary effluents and capable of transforming those nutrients into marketable products such as biofuels, biofertilisers, nutraceutical, and pigments for promoting a Bio-Circular Green economy. In recent years, there has been a shift towards mixing compatible microalgae with bacteria, which is inspired by their natural symbiotic relationships to increase nitrogen and phosphorus recoveries. With this enhanced bioremediation, recovery of polluted wastes can be intensified and higher biomass quality (with high nutrient density) can be achieved. This review focuses on the state-of-the-art of mixed microalgal-bacterial cultivating systems. A comprehensive comparison of existing studies that used Chlorella species as microalgae in various mixed microalgal-bacterial cultivating systems (suspension, biofilm, and immobilisation) for nitrogen and phosphorus recoveries from wastewater is conducted. Key technical challenges such as balancing microalgae and bacteria species, pH regulation, light distribution, biomass harvesting, and biomass conversion are also discussed. From the data comparisons among different cultivation systems, it has been suggested that immobilisation appears to require less amount of operational light compared to the suspended and biofilm-based systems for similar nitrogen and phosphorus removal efficiencies.
Collapse
Affiliation(s)
- Chalampol Janpum
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Nuttapon Pombubpa
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Tanakarn Monshupanee
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Aran Incharoensakdi
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Pichaya In-Na
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
| |
Collapse
|
3
|
Evaluation of Microalgal Bacterial Dynamics in Pig-Farming Biogas Digestate under Impacts of Light Intensity and Nutrient Using Physicochemical Parameters. WATER 2022. [DOI: 10.3390/w14142275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Determination of the dynamics between microalgae and bacteria in pig farming biogas digestate is vital for a consistent and reliable application towards sustainable wastewater treatment and biofuel production. This study assesses the reliability of using physicochemical parameters as indicators for the rapid evaluation of microalgal bacterial dynamics in real digestate under impacts of light, nutrient loads, and N:P ratios. The relationship between variation profiles of nutrients, biomass and physicochemical properties in each experiment was analyzed. High light and high nutrient load enhanced biomass growth and nutrient removal rate. Ammonium addition (high N:P ratio) elevated NH3 level which inhibited the growth of microalgae, subsequently reducing the biomass growth and nutrient removal. Low N:P ratio triggered the accumulation of phosphorus and the growth of chlorophyll-a but exerted little influence on treatment. Variation profiles of dissolved oxygen, nutrient and biomass were highly consistent in every experiment allowing us to identify the shift from microalgal to bacterial predomination under unfavorable conditions including low light intensity and high N:P ratio. Strong linear correlation was also found between total nitrogen removal and electrical conductivity (R2 = 0.9754). The results show the great potential of rapid evaluation of microalgal bacterial dynamics for large scale system optimization and modelling.
Collapse
|
4
|
Sánchez-Zurano A, Rossi S, Fernández-Sevilla JM, Acién-Fernández G, Molina-Grima E, Ficara E. Respirometric assessment of bacterial kinetics in algae-bacteria and activated sludge processes. BIORESOURCE TECHNOLOGY 2022; 352:127116. [PMID: 35398212 DOI: 10.1016/j.biortech.2022.127116] [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: 02/25/2022] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Algae-bacteria (AB) consortia can be exploited for effective wastewater treatment, based on photosynthetic oxygenation to reduce energy requirements for aeration. While algal kinetics have been extensively evaluated, bacterial kinetics in AB systems are still based on parameters taken from the activated sludge models, lacking an experimental validation for AB consortia. A respirometric procedure was therefore proposed, to estimate bacterial kinetics in both activated sludge and AB, under different conditions of temperature, pH, dissolved oxygen, and substrate availability. Bacterial activities were differently influenced by operational/environmental conditions, suggesting that the adoption of typical activated sludge parameters could be inadequate for AB modelling. Indeed, respirometric results show that bacteria in AB consortia were adapted to a wider range of conditions, compared to activated sludge, confirming that a dedicated calibration of bacterial kinetics is essential for effectively modelling AB systems, and respirometry was proven to be a powerful and reliable tool to this purpose.
Collapse
Affiliation(s)
- A Sánchez-Zurano
- Department of Chemical Engineering, University of Almería, 04120 Almería, Spain, CIESOL Solar Energy Research Centre, Joint Centre University of Almería-CIEMAT, 04120 Almería, Spain
| | - S Rossi
- Politecnico di Milano, Dept. of Civil and Environmental Engineering, P.zza L. da Vinci, 32, 20133 Milan, Italy
| | - J M Fernández-Sevilla
- Department of Chemical Engineering, University of Almería, 04120 Almería, Spain, CIESOL Solar Energy Research Centre, Joint Centre University of Almería-CIEMAT, 04120 Almería, Spain
| | - G Acién-Fernández
- Department of Chemical Engineering, University of Almería, 04120 Almería, Spain, CIESOL Solar Energy Research Centre, Joint Centre University of Almería-CIEMAT, 04120 Almería, Spain
| | - E Molina-Grima
- Department of Chemical Engineering, Universidad de Almería, 04120 Almería, Spain
| | - E Ficara
- Politecnico di Milano, Dept. of Civil and Environmental Engineering, P.zza L. da Vinci, 32, 20133 Milan, Italy.
| |
Collapse
|
5
|
Maurya R, Zhu X, Valverde-Pérez B, Ravi Kiran B, General T, Sharma S, Kumar Sharma A, Thomsen M, Venkata Mohan S, Mohanty K, Angelidaki I. Advances in microalgal research for valorization of industrial wastewater. BIORESOURCE TECHNOLOGY 2022; 343:126128. [PMID: 34655786 DOI: 10.1016/j.biortech.2021.126128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
This review article focuses on recent updates on remediation of industrial wastewater (IWW) through microalgae cultivation. These include how adding additional supplements of nutrient to some specific IWWs lacking adequate nutrients improving the microalgae growth and remediation simultaneously. Various pretreatments strategy recently employed for IWWs treatment other than dealing with microalgae was discussed. Various nutrient-rich IWW could be utilized directly with additional dilution, supplement of nutrients and without any pretreatment. Recent advances in various approaches and new tools used for cultivation of microalgae on IWW such as two-step cultivation, pre-acclimatization, novel microalgal-bioelectrical systems, integrated catalytic intense pulse-light process, sequencing batch reactor, use of old stabilized algal-bacterial consortium, immobilized microalgae cells, microalgal bacterial membrane photobioreactor, low-intensity magnetic field, BIO_ALGAE simulation tool, etc. are discussed. In addition, biorefinery of microalgal biomass grown on IWW and its end-use applications are reviewed.
Collapse
Affiliation(s)
- Rahulkumar Maurya
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Xinyu Zhu
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Lyngby, DTU, Denmark
| | - Borja Valverde-Pérez
- Department of Environmental Engineering, Technical University of Denmark, 2800 Lyngby, DTU, Denmark
| | - Boda Ravi Kiran
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - Thiyam General
- Department of Biological Sciences, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture & Technology, U.S. Nagar, Pantnagar, Uttarakhand 263 145, India
| | - Suvigya Sharma
- Department of Biological Sciences, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture & Technology, U.S. Nagar, Pantnagar, Uttarakhand 263 145, India
| | - Anil Kumar Sharma
- Department of Biological Sciences, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture & Technology, U.S. Nagar, Pantnagar, Uttarakhand 263 145, India
| | - Marianne Thomsen
- Aarhus University Centre for Circular Bioeconomy, Aarhus University, Postbox 358 Frederiksborgvej 399, 4000 Roskilde, Denmark
| | - S Venkata Mohan
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - Kaustubha Mohanty
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India; Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Irini Angelidaki
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Lyngby, DTU, Denmark
| |
Collapse
|
6
|
Sharma R, Mishra A, Pant D, Malaviya P. Recent advances in microalgae-based remediation of industrial and non-industrial wastewaters with simultaneous recovery of value-added products. BIORESOURCE TECHNOLOGY 2022; 344:126129. [PMID: 34655783 DOI: 10.1016/j.biortech.2021.126129] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
The ability of microalgae to grow in a broad spectrum of wastewaters manifests great potentials for removing contaminants from effluents of industries and urban areas. Since the post-treatment microalgae biomass is also a significant source of high-value products, microalgae-based wastewater treatment is an economical and sustainable solution to wastewater management. Adding more value, the integration of microalgae with living/non-living materials looks more promising. Microalgae-based treatment technology has certain limitations like high operational costs, problematic harvesting, large land requirements, and hindrance in photosynthesis due to turbid wastewater. These challenges need to be essentially addressed to achieve enhanced wastewater remediation. This review has highlighted the potential applications of microalgae in contaminant removal from wastewaters, simultaneous resource recovery, efficient microalgae-based hybrid systems along with bottlenecks and prospects. This state-of-the-art article will edify the role of microalgae in wastewater remediation, biomass valorization for bio-based products, and present numerous possibilities in strengthening the circular bioeconomy.
Collapse
Affiliation(s)
- Rozi Sharma
- Department of Environmental Science, University of Jammu, Jammu-180006, Jammu and Kashmir, India
| | - Arti Mishra
- Amity Institute of Microbial Technology, Amity University, Noida-201303, Uttar Pradesh, India
| | - Deepak Pant
- Separation & Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol 2400, Belgium
| | - Piyush Malaviya
- Department of Environmental Science, University of Jammu, Jammu-180006, Jammu and Kashmir, India.
| |
Collapse
|
7
|
Rossi S, Visigalli S, Castillo Cascino F, Mantovani M, Mezzanotte V, Parati K, Canziani R, Turolla A, Ficara E. Metal-based flocculation to harvest microalgae: a look beyond separation efficiency. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149395. [PMID: 34426344 DOI: 10.1016/j.scitotenv.2021.149395] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/08/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023]
Abstract
Metal-based flocculants are commonly used for biomass harvesting in microalgae-based bio-refineries. Besides the high separation efficiency, additional aspects should be considered, related to the toxicity of metals for the algal biomass. Partitioning tests for commonly used flocculants (i.e., FeCl3 and Al2(SO4)3) showed that metals were mostly transferred to the solid phase with more than 95% of dosed metal ending up into the biomass, and low metal concentrations in the liquid effluent (lower than 0.4 mg L-1 for both metals), thus allowing for water reuse. Photosynthesis inhibition was tested on microalgae and microalgae-bacteria cultures, using a standardized photo-respirometry protocol in which typical concentrations used during coagulation-flocculation were assessed. Modelling dose-response curves, concentrations corresponding to 50% inhibition (IC50) were obtained, describing short-term effects. The obtained IC50 ranged from 13.7 to 28.3 mg Al L-1 for Al, and from 127.9 to 195.8 mg Fe L-1 for Fe, showing a higher toxicity for the Al-based flocculant. The recovery of photosynthesis inhibition was also quantified, to evaluate the possibility of reusing/recycling the harvested biomass. The results highlighted that the residual photosynthetic activities, evaluated after 1 h and 24 h of exposure to metals were partially recovered, especially for Al, passing from 67.3% to 94.6% activity, respectively, while long-term Fe effects were stronger (passing from 64.9% to 77.6% activity). A non-toxic flocculant (cationic starch) was finally tested, excluding potential effects due to biomass aggregation, as the reduction of photosynthetic activity only reached 3.4%, compared to control. Relevant modifications to the light availability and the optical properties of algal suspensions were assessed, identifying a strong effect of iron which caused an increase of the light absorbance up to approximately 40% at high Fe concentrations. Possible implications of dosing metallic flocculants in MBWWT processes are discussed, and suggestions are given to perform inhibition tests on flocculating chemicals.
Collapse
Affiliation(s)
- S Rossi
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), P.zza L. da Vinci, 32, 20133 Milan, Italy
| | - S Visigalli
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), P.zza L. da Vinci, 32, 20133 Milan, Italy
| | - F Castillo Cascino
- Istituto Sperimentale Italiano Lazzaro Spallanzani, Località La Quercia, 26027 Rivolta d'Adda, Italy
| | - M Mantovani
- Università degli Studi di Milano-Bicocca, Department of Earth and Environmental Sciences (DISAT), P.zza della Scienza 1, 20126 Milan, Italy
| | - V Mezzanotte
- Università degli Studi di Milano-Bicocca, Department of Earth and Environmental Sciences (DISAT), P.zza della Scienza 1, 20126 Milan, Italy
| | - K Parati
- Istituto Sperimentale Italiano Lazzaro Spallanzani, Località La Quercia, 26027 Rivolta d'Adda, Italy
| | - R Canziani
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), P.zza L. da Vinci, 32, 20133 Milan, Italy
| | - A Turolla
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), P.zza L. da Vinci, 32, 20133 Milan, Italy
| | - E Ficara
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), P.zza L. da Vinci, 32, 20133 Milan, Italy.
| |
Collapse
|
8
|
Flores-Salgado G, Quijano G, Vital-Jácome M, Buitrón G, Orozco-Soto SM, Vera-Bustamante P, Ibarra Zannatha JM, Thalasso F. Novel photo-microrespirometric method for the rapid determination of photosynthesis-irradiance (PI) curves in microalgal-bacterial systems. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
9
|
Casagli F, Rossi S, Steyer JP, Bernard O, Ficara E. Balancing Microalgae and Nitrifiers for Wastewater Treatment: Can Inorganic Carbon Limitation Cause an Environmental Threat? ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:3940-3955. [PMID: 33657315 PMCID: PMC8028045 DOI: 10.1021/acs.est.0c05264] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
The first objective of this study is to assess the predictive capability of the ALBA (ALgae-BActeria) model for a pilot-scale (3.8 m2) high-rate algae-bacteria pond treating agricultural digestate. The model, previously calibrated and validated on a one-year data set from a demonstrative-scale raceway (56 m2), successfully predicted data from a six-month monitoring campaign with a different wastewater (urban wastewater) under different climatic conditions. Without changing any parameter value from the previous calibration, the model accurately predicted both online monitored variables (dissolved oxygen, pH, temperature) and off-line measurements (nitrogen compounds, algal biomass, total and volatile suspended solids, chemical oxygen demand). Supported by the universal character of the model, different scenarios under variable weather conditions were tested, to investigate the effect of key operating parameters (hydraulic retention time, pH regulation, kLa) on algae biomass productivity and nutrient removal efficiency. Surprisingly, despite pH regulation, a strong limitation for inorganic carbon was found to hinder the process efficiency and to generate conditions that are favorable for N2O emission. The standard operating parameters have a limited effect on this limitation, and alkalinity turns out to be the main driver of inorganic carbon availability. This investigation offers new insights in algae-bacteria processes and paves the way for the identification of optimal operational strategies.
Collapse
Affiliation(s)
- Francesca Casagli
- Dipartimento
di Ingegneria Civile e Ambientale (DICA), Politecnico di Milano, 32, Piazza L. da Vinci, 20133 Milan, Italy
- Institut
National de Recherche en Informatique et en Automatique (INRIA), Biocore,
Université Cote d’Azur, 2004, Route des Lucioles − BP 93, 06902 Sophia-Antipolis, France
| | - Simone Rossi
- Dipartimento
di Ingegneria Civile e Ambientale (DICA), Politecnico di Milano, 32, Piazza L. da Vinci, 20133 Milan, Italy
| | | | - Olivier Bernard
- Institut
National de Recherche en Informatique et en Automatique (INRIA), Biocore,
Université Cote d’Azur, 2004, Route des Lucioles − BP 93, 06902 Sophia-Antipolis, France
| | - Elena Ficara
- Dipartimento
di Ingegneria Civile e Ambientale (DICA), Politecnico di Milano, 32, Piazza L. da Vinci, 20133 Milan, Italy
| |
Collapse
|
10
|
Sánchez Zurano A, Gómez Serrano C, Acién-Fernández FG, Fernández-Sevilla JM, Molina-Grima E. Modeling of photosynthesis and respiration rate for microalgae-bacteria consortia. Biotechnol Bioeng 2020; 118:952-962. [PMID: 33179264 DOI: 10.1002/bit.27625] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/16/2020] [Accepted: 11/05/2020] [Indexed: 02/06/2023]
Abstract
In this article, the influence of culture conditions (irradiance, temperature, pH, and dissolved oxygen) on the photosynthesis and the respiration rates of microalgae-bacteria consortia in wastewater treatment was analyzed. Specifically, some short photo-respirometric experiments, simulating outdoor raceway reactors, were performed to evaluate the response of microalgae, heterotrophic bacteria, and nitrifying bacteria to variations in environmental parameters. Results demonstrate that irradiance is the most dominant variable to determine microalgae photosynthesis rates. However, reduction in microalgae activity was not observed at higher irradiance, ruling out the existence of photoinhibition phenomena. Related to heterotrophic and nitrifying bacteria, their activities were strongly affected by the influence of temperature and pH. Moreover, the effect of dissolved oxygen concentrations on microalgae, and bacteria activities was studied, displaying a reduced photosynthetic rate at dissolved oxygen concentrations above 20 mg/L. Data have been used to develop an integrated model for each population (microalgae, heterotrophic bacteria, and nitrifying bacteria) based on considering the simultaneous influence of irradiance, temperature, pH, and dissolved oxygen. The models fit the experimental results in the range of culture conditions tested, and they were validated using data obtained by the simultaneous modifications of the variables. These individual models serve as a basis for developing a global biologic microalgae-bacteria model for wastewater treatment to improve the optimal design and management of microalgae-based processes, especially outdoors, where the cultures are subject to variable daily culture conditions.
Collapse
Affiliation(s)
- Ana Sánchez Zurano
- Department of Chemical Engineering, University of Almeria, Almería, Spain
| | | | | | | | | |
Collapse
|