51
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Pei H, Yang Z, Nie C, Hou Q, Zhang L, Wang Y, Zhang S. Using a tubular photosynthetic microbial fuel cell to treat anaerobically digested effluent from kitchen waste: Mechanisms of organics and ammonium removal. BIORESOURCE TECHNOLOGY 2018; 256:11-16. [PMID: 29427862 DOI: 10.1016/j.biortech.2018.01.144] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 01/28/2018] [Accepted: 01/31/2018] [Indexed: 06/08/2023]
Abstract
Anaerobically digested effluent from kitchen waste (ADE-KW) was used herein as the substrate of a tubular photosynthetic microbial fuel cell (PMFC) for power production, and also, after being diluted, as a medium for cultivation of algae in the cathodic chamber. Adding 3 mg/L phosphorus to the catholyte could efficiently enhance the algal growth and the PMFC performance. About 0.94 g/L algal biomass and 0.57 kWh/m3-ADE-KW bioelectricity were obtained from the PMFC. Soluble microbial byproduct-like material and aromatic proteins were the dominant organics in the ADE-KW, which were readily degradable in the system. About 79% of the 1550 mg/L ammonium in the anolyte transferred to the catholyte through the cation exchange membrane. The ammonium was removed mainly as electron acceptors at the cathode after being oxidized by oxygen, whereas algal assimilation only account for about 14.6% of the overall nitrogen.
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Affiliation(s)
- Haiyan Pei
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China; Shandong Provincial Engineering Centre on Environmental Science and Technology, No. 17923 Jingshi Road, Jinan 250061, China.
| | - Zhigang Yang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
| | - Changliang Nie
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
| | - Qingjie Hou
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
| | - Lijie Zhang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
| | - Yuting Wang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
| | - Shasha Zhang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda Nan Road, Jinan 250100, China
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52
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Arias DM, Solé-Bundó M, Garfí M, Ferrer I, García J, Uggetti E. Integrating microalgae tertiary treatment into activated sludge systems for energy and nutrients recovery from wastewater. BIORESOURCE TECHNOLOGY 2018; 247:513-519. [PMID: 28972904 DOI: 10.1016/j.biortech.2017.09.123] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 09/15/2017] [Accepted: 09/17/2017] [Indexed: 05/22/2023]
Abstract
In this study, microalgae digestate and secondary effluent were used to grow microalgae in a tertiary wastewater treatment, and then, the biomass was co-digested for biogas generation. A 30L closed-photobioreactor was used for microalgae cultivation. The biomass, mainly composed by Scenedesmus sp., reached and maintained a concentration of 1.1gTSS/L during 30days. A complete removal of N-NH4+ and P-PO43- and high nitrates and organic matter removals were achieved (58% N-NO3- and 70% COD) with 8d of HRT. The potential biogas production of the cultivated microalgae was determined in batch tests. To improve their biodegradability, a novel method combining their co-digestion with activated sludge after a simultaneous autohydrolysis co-pretreatment was evaluated. After the co-pretreatment, the methane yield increased by 130%. Thus, integrating microalgae tertiary treatment into activated sludge systems is a promising and feasible solution to recover energy and nutrients from waste, improving wastewater treatment plants sustainability.
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Affiliation(s)
- Dulce Maria Arias
- GEMMA - Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya·BarcelonaTech, c/ Jordi Girona 1-3, Building D1, E-08034 Barcelona, Spain
| | - Maria Solé-Bundó
- GEMMA - Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya·BarcelonaTech, c/ Jordi Girona 1-3, Building D1, E-08034 Barcelona, Spain
| | - Marianna Garfí
- GEMMA - Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya·BarcelonaTech, c/ Jordi Girona 1-3, Building D1, E-08034 Barcelona, Spain
| | - Ivet Ferrer
- GEMMA - Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya·BarcelonaTech, c/ Jordi Girona 1-3, Building D1, E-08034 Barcelona, Spain
| | - Joan García
- GEMMA - Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya·BarcelonaTech, c/ Jordi Girona 1-3, Building D1, E-08034 Barcelona, Spain
| | - Enrica Uggetti
- GEMMA - Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya·BarcelonaTech, c/ Jordi Girona 1-3, Building D1, E-08034 Barcelona, Spain.
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53
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González-Camejo J, Serna-García R, Viruela A, Pachés M, Durán F, Robles A, Ruano MV, Barat R, Seco A. Short and long-term experiments on the effect of sulphide on microalgae cultivation in tertiary sewage treatment. BIORESOURCE TECHNOLOGY 2017; 244:15-22. [PMID: 28777986 DOI: 10.1016/j.biortech.2017.07.126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/18/2017] [Accepted: 07/21/2017] [Indexed: 06/07/2023]
Abstract
Microalgae cultivation appears to be a promising technology for treating nutrient-rich effluents from anaerobic membrane bioreactors, as microalgae are able to consume nutrients from sewage without an organic carbon source, although the sulphide formed during the anaerobic treatment does have negative effects on microalgae growth. Short and long-term experiments were carried out on the effects of sulphide on a mixed microalgae culture. The short-term experiments showed that the oxygen production rate (OPR) dropped as sulphide concentration increased: a concentration of 5mgSL-1 reduced OPR by 43%, while a concentration of 50mgSL-1 came close to completely inhibiting microalgae growth. The long-term experiments revealed that the presence of sulphide in the influent had inhibitory effects at sulphide concentrations above 20mgSL-1 in the culture, but not at concentrations below 5mgSL-1. These conditions favoured Chlorella growth over that of Scenedesmus.
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Affiliation(s)
- J González-Camejo
- CALAGUA - Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient - IIAMA, Universitat Politècnica de Valencia, Camí de Vera s/n, 46022 Valencia, Spain
| | - R Serna-García
- CALAGUA - Unidad Mixta UV-UPV, Departament d'Enginyeria Química, Universitat de València, Avinguda de la Universitat s/n, 46100 Burjassot, Valencia, Spain
| | - A Viruela
- CALAGUA - Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient - IIAMA, Universitat Politècnica de Valencia, Camí de Vera s/n, 46022 Valencia, Spain
| | - M Pachés
- CALAGUA - Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient - IIAMA, Universitat Politècnica de Valencia, Camí de Vera s/n, 46022 Valencia, Spain
| | - F Durán
- CALAGUA - Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient - IIAMA, Universitat Politècnica de Valencia, Camí de Vera s/n, 46022 Valencia, Spain
| | - A Robles
- CALAGUA - Unidad Mixta UV-UPV, Departament d'Enginyeria Química, Universitat de València, Avinguda de la Universitat s/n, 46100 Burjassot, Valencia, Spain
| | - M V Ruano
- CALAGUA - Unidad Mixta UV-UPV, Departament d'Enginyeria Química, Universitat de València, Avinguda de la Universitat s/n, 46100 Burjassot, Valencia, Spain
| | - R Barat
- CALAGUA - Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient - IIAMA, Universitat Politècnica de Valencia, Camí de Vera s/n, 46022 Valencia, Spain.
| | - A Seco
- CALAGUA - Unidad Mixta UV-UPV, Departament d'Enginyeria Química, Universitat de València, Avinguda de la Universitat s/n, 46100 Burjassot, Valencia, Spain
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Markou G, Dao LH, Muylaert K, Beardall J. Influence of different degrees of N limitation on photosystem II performance and heterogeneity of Chlorella vulgaris. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.07.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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55
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Romero Villegas G, Fiamengo M, Acién Fernández F, Molina Grima E. Outdoor production of microalgae biomass at pilot-scale in seawater using centrate as the nutrient source. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.06.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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56
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Marazzi F, Sambusiti C, Monlau F, Cecere S, Scaglione D, Barakat A, Mezzanotte V, Ficara E. A novel option for reducing the optical density of liquid digestate to achieve a more productive microalgal culturing. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.03.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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57
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Evaluation of anaerobic digestates from different feedstocks as growth media for Tetradesmus obliquus, Botryococcus braunii, Phaeodactylum tricornutum and Arthrospira maxima. N Biotechnol 2017; 36:8-16. [DOI: 10.1016/j.nbt.2016.12.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 10/27/2016] [Accepted: 12/27/2016] [Indexed: 01/11/2023]
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58
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Troschl C, Meixner K, Drosg B. Cyanobacterial PHA Production-Review of Recent Advances and a Summary of Three Years' Working Experience Running a Pilot Plant. Bioengineering (Basel) 2017; 4:E26. [PMID: 28952505 PMCID: PMC5590470 DOI: 10.3390/bioengineering4020026] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 03/15/2017] [Accepted: 03/16/2017] [Indexed: 11/20/2022] Open
Abstract
Cyanobacteria, as photoautotrophic organisms, provide the opportunity to convert CO2 to biomass with light as the sole energy source. Like many other prokaryotes, especially under nutrient deprivation, most cyanobacteria are able to produce polyhydroxyalkanoates (PHAs) as intracellular energy and carbon storage compounds. In contrast to heterotrophic PHA producers, photoautotrophic cyanobacteria do not consume sugars and, therefore, do not depend on agricultural crops, which makes them a green alternative production system. This review summarizes the recent advances in cyanobacterial PHA production. Furthermore, this study reports the working experience with different strains and cultivating conditions in a 200 L pilot plant. The tubular photobioreactor was built at the coal power plant in Dürnrohr, Austria in 2013 for direct utilization of flue gases. The main challenges were the selection of robust production strains, process optimization, and automation, as well as the CO2 availability.
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Affiliation(s)
- Clemens Troschl
- Institute of Environmental Biotechnology, Department of Agrobiotechnology, IFA-Tulln, University of Natural Resources and Life Sciences, Vienna, Tulln 3430, Austria.
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59
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Koutra E, Grammatikopoulos G, Kornaros M. Microalgal post-treatment of anaerobically digested agro-industrial wastes for nutrient removal and lipids production. BIORESOURCE TECHNOLOGY 2017; 224:473-480. [PMID: 27866801 DOI: 10.1016/j.biortech.2016.11.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 11/04/2016] [Accepted: 11/05/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study was to investigate the effectiveness of cultivating Parachlorella kessleri and Acutodesmus obliquus, in anaerobic digestion effluent (ADE) derived from the co-digestion of end-of-life dairy products with mixtures of agro-industrial wastes. To this end, their performance under sterile and non-sterile conditions and different ADE loadings was evaluated, in terms of biomass and lipid production, nutrient removal efficiency and vitality of the photosynthetic apparatus. 10% (v/v) ADE loading inhibited growth over 9-12days of cultivation, however biomass yields of 1.1 and 1gL-1, 22.7% and 19.5% (w/w) fatty acids concentration, as well as NH3-N assimilation of 49.7mgL-1 and 32.3mgL-1 and TP removal of 84.2% and 84% were recorded for P. kessleri and A. obliquus, respectively. Among all the ADE-based treatments tested, P. kessleri outperformed A. obliquus, with no differences observed between sterilized and non-sterilized ADE.
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Affiliation(s)
- Eleni Koutra
- Laboratory of Biochemical Engineering & Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | - George Grammatikopoulos
- Laboratory of Plant Physiology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Michael Kornaros
- Laboratory of Biochemical Engineering & Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, 26504 Patras, Greece.
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60
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Akhiar A, Battimelli A, Torrijos M, Carrere H. Comprehensive characterization of the liquid fraction of digestates from full-scale anaerobic co-digestion. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 59:118-128. [PMID: 27847231 DOI: 10.1016/j.wasman.2016.11.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/21/2016] [Accepted: 11/03/2016] [Indexed: 05/24/2023]
Abstract
Waste management by anaerobic digestion generates a final byproduct, the digestate, which is usually separated into solid and liquid fractions to reduce the volume for transportation. The composition of the solid fraction has been recently studied to allow its valorization. However, full composition of liquid fraction of digestate and its size fractionation are less considered in the literature for efficient post treatment and valorization purposes. Therefore, here we characterized in detail liquid fraction of digestate obtained after solid-liquid separation from 11 full-scale co-digestion plants. The liquid fraction has a high concentration in organic matter with Chemical Oxygen Demand (COD) from 9.2 to 78g/L with 60-96% of COD in suspended particles (>1.2μm), 2-27% in colloids (1.2μm to 1kDa) and 2-18% in dissolved matter (<1kDa). Besides, it contained from 1.5 to 6.5g/L total nitrogen and high ions concentrations (0.5-3.1g/L NH4+, 1.05-5.48g/L K+, 0-2.13g/L PO43-). In addition, liquid fraction of digestate has poor biodegradability due to presence of humic substances making aerobic treatment inefficient. Only physico-chemical post treatment can be proposed for organic matter removal.
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Affiliation(s)
- Afifi Akhiar
- LBE, INRA, 102 Avenue des Etangs, Narbonne F-11100, France
| | | | | | - Helene Carrere
- LBE, INRA, 102 Avenue des Etangs, Narbonne F-11100, France
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61
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Processing recommendations for using low-solids digestate as nutrient solution for poly-ß-hydroxybutyrate production with Synechocystis salina. J Biotechnol 2016; 240:61-67. [DOI: 10.1016/j.jbiotec.2016.10.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/14/2016] [Accepted: 10/24/2016] [Indexed: 11/23/2022]
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62
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Wahal S, Viamajala S. Uptake of inorganic and organic nutrient species during cultivation of a Chlorella isolate in anaerobically digested dairy waste. Biotechnol Prog 2016; 32:1336-1342. [PMID: 27254249 DOI: 10.1002/btpr.2313] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 04/15/2016] [Indexed: 11/06/2022]
Abstract
A natural assemblage of microalgae from a facultative lagoon system treating municipal wastewater was enriched for growth in the effluents of an anaerobic digester processing dairy waste. A green microalga with close resemblance to Chlorella sp. was found to be dominant after multiple cycles of sub-culturing. Subsequently, the strain (designated as LLAI) was isolated and cultivated in 20× diluted digester effluents under various incident light intensities (255-1,100 µmoles m-2 s-1 ) to systematically assess growth and nutrient utilization. Our results showed that LLAI production increased with increasing incident light and a maximum productivity of 0.34 g L-1 d-1 was attained when the incident irradiance was 1,100 µmoles m-2 s-1 . Lack of growth in the absence of light indicated that the cultures did not grow heterotrophically on the organic compounds present in the medium. However, the cultures were able to uptake organic N and P under phototrophic conditions and our calculations suggest that the carbon associated with these organic nutrients contributed significantly to the production of biomass. Overall, under high light conditions, LLAI cultures utilized half of the soluble organic nitrogen and >90% of the ammonium, orthophosphate, and dissolved organic phosphorus present in the diluted waste. Strain LLAI was also found to accumulate triacylglycerides (TAG) even before the onset of nutrient limitation and a lipid productivity of 37 mg-TAG L-1 d-1 was measured in cultures incubated at an incident irradiance of 1,100 µmoles m-2 s-1 . The results of this study suggest that microalgae isolates from natural environments are well-suited for nutrient remediation and biomass production from wastewater containing diverse inorganic and organic nutrient species. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1336-1342, 2016.
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Affiliation(s)
- Shantanu Wahal
- Institute of Water and Wastewater Technology, Dept of Biotechnology, Durban University of Technology, Durban, South Africa
| | - Sridhar Viamajala
- Department of Chemical and Environmental Engineering, The University of Toledo, 2801 W. Bancroft St., Toledo, OH, 43606.
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63
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Acién FG, Gómez-Serrano C, Morales-Amaral MM, Fernández-Sevilla JM, Molina-Grima E. Wastewater treatment using microalgae: how realistic a contribution might it be to significant urban wastewater treatment? Appl Microbiol Biotechnol 2016; 100:9013-9022. [DOI: 10.1007/s00253-016-7835-7] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/23/2016] [Accepted: 08/25/2016] [Indexed: 11/29/2022]
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64
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The Environmental Biorefinery: Using Microalgae to Remediate Wastewater, a Win-Win Paradigm. ENERGIES 2016. [DOI: 10.3390/en9030132] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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65
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Wu S, Lei M, Lu Q, Guo L, Dong R. Treatment of pig manure liquid digestate in horizontal flow constructed wetlands: Effect of aeration. Eng Life Sci 2015. [DOI: 10.1002/elsc.201500030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Shubiao Wu
- Key Laboratory of Clean Utilization Technology for Renewable Energy; Ministry of Agriculture; College of Engineering; China Agricultural University; Beijing P. R. China
| | - Ming Lei
- Department of Biomass Engineering College of Agriculture and Biotechnology; China Agricultural University; Beijing P. R. China
| | - Qimin Lu
- Key Laboratory of Clean Utilization Technology for Renewable Energy; Ministry of Agriculture; College of Engineering; China Agricultural University; Beijing P. R. China
| | - Luchen Guo
- Key Laboratory of Clean Utilization Technology for Renewable Energy; Ministry of Agriculture; College of Engineering; China Agricultural University; Beijing P. R. China
| | - Renjie Dong
- Key Laboratory of Clean Utilization Technology for Renewable Energy; Ministry of Agriculture; College of Engineering; China Agricultural University; Beijing P. R. China
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66
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Ledda C, Romero Villegas G, Adani F, Acién Fernández F, Molina Grima E. Utilization of centrate from wastewater treatment for the outdoor production of Nannochloropsis gaditana biomass at pilot-scale. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.08.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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67
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Morales-Amaral MDM, Gómez-Serrano C, Acién FG, Fernández-Sevilla JM, Molina-Grima E. Outdoor production of Scenedesmus sp. in thin-layer and raceway reactors using centrate from anaerobic digestion as the sole nutrient source. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.08.020] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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68
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Vasconcelos Fernandes T, Shrestha R, Sui Y, Papini G, Zeeman G, Vet LEM, Wijffels RH, Lamers P. Closing Domestic Nutrient Cycles Using Microalgae. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:12450-12456. [PMID: 26389714 DOI: 10.1021/acs.est.5b02858] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study demonstrates that microalgae can effectively recover all P and N from anaerobically treated black water (toilet wastewater). Thus, enabling the removal of nutrients from the black water and the generation of a valuable algae product in one step. Screening experiments with green microalgae and cyanobacteria showed that all tested green microalgae species successfully grew on anaerobically treated black water. In a subsequent controlled experiment in flat-panel photobioreactors, Chlorella sorokiniana was able to remove 100% of the phosphorus and nitrogen from the medium. Phosphorus was depleted within 4 days while nitrogen took 12 days to reach depletion. The phosphorus and nitrogen removal rates during the initial linear growth phase were 17 and 122 mg·L(-1)·d(-1), respectively. After this initial phase, the phosphorus was depleted. The nitrogen removal rate continued to decrease in the second phase, resulting in an overall removal rate of 80 mg·L(-1)·d(-1). The biomass concentration at the end of the experiment was 11.5 g·L(-1), with a P content of approximately 1% and a N content of 7.6%. This high algal biomass concentration, together with a relatively short P recovery time, is a promising finding for future post-treatment of black water while gaining valuable algal biomass for further application.
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Affiliation(s)
- Tânia Vasconcelos Fernandes
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW) , P.O. Box 50, 6700 AB Wageningen, The Netherlands
| | - Rabin Shrestha
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW) , P.O. Box 50, 6700 AB Wageningen, The Netherlands
| | - Yixing Sui
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW) , P.O. Box 50, 6700 AB Wageningen, The Netherlands
| | - Gustavo Papini
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW) , P.O. Box 50, 6700 AB Wageningen, The Netherlands
| | - Grietje Zeeman
- Sub-department of Environmental Technology, Wageningen University , P.O. Box 8129, 6700 EV Wageningen, The Netherlands
| | - Louise E M Vet
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW) , P.O. Box 50, 6700 AB Wageningen, The Netherlands
| | - Rene H Wijffels
- Bioprocess Engineering, AlgaePARC, Wageningen University , P.O. Box 16, 6700 AA Wageningen, The Netherlands
- University of Nordland , Faculty of Biosciences and Aquaculture, N-8049, Bodø, Norway
| | - Packo Lamers
- Bioprocess Engineering, AlgaePARC, Wageningen University , P.O. Box 16, 6700 AA Wageningen, The Netherlands
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69
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Morales-Amaral MDM, Gómez-Serrano C, Acién FG, Fernández-Sevilla JM, Molina-Grima E. Production of microalgae using centrate from anaerobic digestion as the nutrient source. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.03.018] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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70
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71
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Li B, Huang W, Zhang C, Feng S, Zhang Z, Lei Z, Sugiura N. Effect of TiO2 nanoparticles on aerobic granulation of algal-bacterial symbiosis system and nutrients removal from synthetic wastewater. BIORESOURCE TECHNOLOGY 2015; 187:214-220. [PMID: 25855527 DOI: 10.1016/j.biortech.2015.03.118] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/19/2015] [Accepted: 03/25/2015] [Indexed: 06/04/2023]
Abstract
The influence of TiO2 nanoparticles (TiO2-NPs) (10-50mg/L) on aerobic granulation of algal-bacterial symbiosis system was investigated by using two identical sequencing batch reactors (SBRs). Although little adverse effect was observed on their nitritation efficiency (98-100% in both reactors), algal-bacterial granules in the control SBR (Rc) gradually lost stability mainly brought about by algae growth. TiO2-NPs addition to RT was found to enhance the granulation process achieving stable and compact algal-bacterial granules with remarkably improved nitratation thus little nitrite accumulation in RT when influent TiO2-NPs⩾30mg/L. Despite almost similar organics and phosphorus removals obtained in both reactors, the stably high nitratation efficiency in addition to much stable granular structure in RT suggests that TiO2-NPs addition might be a promising remedy for the long-term operation of algal-bacterial granular system, most probably attributable to the stimulated excretion of extracellular polymeric substances and less filamentous TM7.
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Affiliation(s)
- Bing Li
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Wenli Huang
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Chao Zhang
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Sisi Feng
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Zhenya Zhang
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Zhongfang Lei
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
| | - Norio Sugiura
- Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia; Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
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Huang W, Li B, Zhang C, Zhang Z, Lei Z, Lu B, Zhou B. Effect of algae growth on aerobic granulation and nutrients removal from synthetic wastewater by using sequencing batch reactors. BIORESOURCE TECHNOLOGY 2015; 179:187-192. [PMID: 25544496 DOI: 10.1016/j.biortech.2014.12.024] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 12/07/2014] [Accepted: 12/08/2014] [Indexed: 06/04/2023]
Abstract
The effect of algae growth on aerobic granulation and nutrients removal was studied in two identical sequencing batch reactors (SBRs). Sunlight exposure promoted the growth of algae in the SBR (Rs), forming an algal-bacterial symbiosis in aerobic granules. Compared to the control SBR (Rc), Rs had a slower granulation process with granules of loose structure and smaller particle size. Moreover, the specific oxygen uptake rate was significantly decreased for the granules from Rs with secretion of 25.7% and 22.5% less proteins and polysaccharides respectively in the extracellular polymeric substances. Although little impact was observed on chemical oxygen demand (COD) removal, algal-bacterial symbiosis deteriorated N and P removals, about 40.7-45.4% of total N and 44% of total P in Rs in contrast to 52.9-58.3% of TN and 90% of TP in Rc, respectively. In addition, the growth of algae altered the microbial community in Rs, especially unfavorable for Nitrospiraceae and Nitrosomonadaceae.
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Affiliation(s)
- Wenli Huang
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Bing Li
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Chao Zhang
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Zhenya Zhang
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Zhongfang Lei
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
| | - Baowang Lu
- Graduate School of Environmental and Life Sciences, Okayama University, 3-1-1 Tushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Beibei Zhou
- Shanghai Biotechnology Corporation, 121 Libing Road, Shanghai 201203, China
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Marcilhac C, Sialve B, Pourcher AM, Ziebal C, Bernet N, Béline F. Control of nitrogen behaviour by phosphate concentration during microalgal-bacterial cultivation using digestate. BIORESOURCE TECHNOLOGY 2015; 175:224-230. [PMID: 25459826 DOI: 10.1016/j.biortech.2014.10.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/03/2014] [Accepted: 10/05/2014] [Indexed: 06/04/2023]
Abstract
The cultivation of microalgae with digestate supernatant is a promising process for the recovery of mineralized nutrients (P, N) from anaerobic digestion. Nevertheless, the variability of phosphorus concentration in the influent could limit this process. The impact of initial N:P ratios between 3 and 76gNgP(-1) was studied and proved no growth limitation over 14-day batch experiments even when P was depleted. Nitrogen assimilation was not affected by phosphorus concentrations and reached 10.1mgNL(-1)d(-1) whereas phosphorus removal ranged from 0.6 to 2.0mgPL(-1)d(-1). The biomass N:P ratio was found to be a function of the influent N:P ratio. Phosphorus storage by microalgae was thus confirmed. Nitrification was found to be highly dependent on the initial phosphorus concentration. The evolution of microalgae communities was also monitored and revealed the advantage of Scenedesmus over Chlorella when the media was phosphorus-depleted.
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Affiliation(s)
- Cyril Marcilhac
- Irstea, UR GERE, 17 av. de Cucillé, CS 64427, F-35044 Rennes, France; Université Européenne de Bretagne, F-35044 Rennes, France
| | - Bruno Sialve
- INRA, UR50, Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, F-11100 Narbonne, France
| | - Anne-Marie Pourcher
- Irstea, UR GERE, 17 av. de Cucillé, CS 64427, F-35044 Rennes, France; Université Européenne de Bretagne, F-35044 Rennes, France
| | - Christine Ziebal
- Irstea, UR GERE, 17 av. de Cucillé, CS 64427, F-35044 Rennes, France
| | - Nicolas Bernet
- INRA, UR50, Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, F-11100 Narbonne, France
| | - Fabrice Béline
- Irstea, UR GERE, 17 av. de Cucillé, CS 64427, F-35044 Rennes, France; Université Européenne de Bretagne, F-35044 Rennes, France.
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