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Ji CC, Chen KY, Deng SK, Wang JX, Hu YX, Xu XH, Cheng LH. Fouling evolution of extracellular polymeric substances in forward osmosis based microalgae dewatering. WATER RESEARCH 2023; 229:119395. [PMID: 36463677 DOI: 10.1016/j.watres.2022.119395] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/01/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Membrane fouling was still a challenge for the potential application of forward osmosis (FO) in algae dewatering. In this study, the fouling behaviors of Chlorella vulgaris and Scenedesmus obliquus were compared in the FO membrane filtration process, and the roles of their soluble-extracellular polymeric substances (sEPS) and bound-EPS (bEPS) in fouling performance were investigated. The results showed that fouling behaviors could be divided into two stages including a quickly dropped and later a stable process. The bEPS of both species presented the highest flux decline (about 40.0%) by comparison with their sEPS, cells and broth. This performance was consistent with the largest dissolved organic carbon losses in feed solutions, and the highest interfacial free energy analyzed by the extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory. The chemical characterizations of algal foulants further showed that the severe fouling performance was also consistent with a proper ratio of carbohydrates and proteins contents in the cake layer, as well as the higher low molecular weight (LMW) components. Compared with the bEPS, the sEPS was crucial for the membrane fouling of S. obliquus, and an evolution of the membrane fouling structure was found in both species at the later filtration stage. This work clearly revealed the fundamental mechanism of FO membrane fouling caused by real microalgal suspension, and it will improve our understanding of the evolutionary fouling performances of algal EPS.
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Affiliation(s)
- Cheng-Cheng Ji
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, PR China; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Ke-Yu Chen
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Shao-Kang Deng
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Jian-Xiao Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Yun-Xia Hu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Xin-Hua Xu
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Li-Hua Cheng
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, PR China; MOE Engineering Research Center of Membrane & Water Treatment Technology, Zhejiang University, Hangzhou 310058, PR China.
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Oliveira GA, Machado ÊL, Knoll RS, Dell'Osbel N, Colares GS, Rodrigues LR. Combined system for wastewater treatment: ozonization and coagulation via tannin-based agent for harvesting microalgae by dissolved air flotation. ENVIRONMENTAL TECHNOLOGY 2022; 43:1370-1380. [PMID: 32985355 DOI: 10.1080/09593330.2020.1830181] [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: 04/01/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
This study evaluated the performance of urban wastewater treatment in pilot-plant by an integrated system consisting of anaerobic reactor, microalgae cultivation, Venturi tube ozone recirculation, coagulation/flocculation with tannin-based agent natural coagulant, and dissolved air flotation (DAF). Ozone concentrations (without ozone, 0.13 and 0.25 mg O3/mg of biomass) and tannin dosages (65, 85 and 105 mg/L) were evaluated regarding microalgae separation and their influences on wastewater treatment performance. During the experiments, it was verified that the treatment efficiency increased when ozone was applied and with higher tannin dosages. The best results were found with 0.13 mg O3/mg of biomass and 105 mg/L of tannin, obtaining excellent removal of turbidity removal (99.4%), apparent colour at 420 nm (94.5%), TN (83.2%), N-NH3 (100%), TOC (86.8%), BOD5 (86.5%) and COD (100%), 47.6% reduction in electric conductivity, 46.1% in TDS, 66.4% TP removal for the integrated system and 84% microalgae biomass recovery were obtained. Our results showed that the system proved to be a viable alternative for the treatment of urban wastewater and the recovery of microalgae through the insertion of ozone via Venturi tube combined with tannin-based agent.
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Affiliation(s)
- Gislayne Alves Oliveira
- Programa de Pós Graduação em Recursos Hídricos e Saneamento Ambiental, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ênio Leandro Machado
- Departamento de Química e Física, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Brazil
| | - Rhauani Segatto Knoll
- Departamento de Engenharia, Arquitetura e Ciências Agrárias, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Brazil
| | - Naira Dell'Osbel
- Programa de Pós Graduação em Tecnologias Ambientais, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Brazil
| | - Gustavo Stolzenberg Colares
- Programa de Pós Graduação em Tecnologias Ambientais, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Brazil
| | - Lúcia Ribeiro Rodrigues
- Programa de Pós Graduação em Recursos Hídricos e Saneamento Ambiental, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Wang X, Ding S, Song W, Li H, Zhang Y, Ren W, Li M, Lu J, Ding J. A collaborative effect of algae-bacteria symbiotic and biological activated carbon system on black odorous water pretreated by UV photolysis. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.107983] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chen CY, Kuo EW, Nagarajan D, Dong CD, Lee DJ, Varjani S, Lam SS, Chang JS. Semi-batch cultivation of Chlorella sorokiniana AK-1 with dual carriers for the effective treatment of full strength piggery wastewater treatment. BIORESOURCE TECHNOLOGY 2021; 326:124773. [PMID: 33548816 DOI: 10.1016/j.biortech.2021.124773] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
In this study, process optimization for the microalgae-based piggery wastewater treatment was carried out by growing Chlorella sorokiniana AK-1 on untreated piggery wastewater with efficient COD/BOD/TN/TP removal and high biomass/protein productivities. Integration of the immobilization carriers (sponge, activated carbon) and semi-batch cultivation resulted in the effective treatment of raw untreated piggery wastewater. With 100% wastewater, 0.2% sponge and 2% activated carbon, the semi-batch cultivation (90% media replacement every 6 days) exhibited a COD, BOD, TN and TP removal efficiency of 95.7%, 99.0%, 94.1% and 96.9%, respectively. The maximal protein content, protein productivity, lutein content, and lutein productivity of the obtained microalgal biomass was 61.1%, 0.48 g/L/d, 4.56 mg/g, and 3.56 mg/L/d, respectively. The characteristics of the treated effluent satisfied Taiwan Piggery Wastewater Discharge Standards (COD < 600 mg/L, BOD < 80 mg/L). This innovative approach demonstrated excellent performance for simultaneous piggery wastewater treatment and microalgal biomass production.
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Affiliation(s)
- Chun-Yen Chen
- University Center for Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - En-Wei Kuo
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Dillirani Nagarajan
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India
| | - Su Shiung Lam
- Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (Akuatrop), Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Chemical and Materials Engineering, Tunghai University, Taichung 407, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan.
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Zhou H, Ji CC, Li JQ, Hu YX, Xu XH, An Y, Cheng LH. Understanding the interaction mechanism of algal cells and soluble algal products foulants in forward osmosis dewatering. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118835] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Chen CY, Kuo EW, Nagarajan D, Ho SH, Dong CD, Lee DJ, Chang JS. Cultivating Chlorella sorokiniana AK-1 with swine wastewater for simultaneous wastewater treatment and algal biomass production. BIORESOURCE TECHNOLOGY 2020; 302:122814. [PMID: 32004812 DOI: 10.1016/j.biortech.2020.122814] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Swine wastewater is rich in nitrogen and organic carbon which are essential macronutrients for microalgal growth. Three indigenous microalgal strains (Chlorella sorokiniana AK-1, Chlorella sorokiniana MS-C1, and Chlorella sorokiniana TJ5) were examined for their growth capability in untreated swine wastewater. C. sorokiniana AK-1 showed the best tolerance towards swine wastewater, and obtained the highest biomass concentration (5.45 g/L) and protein productivity (0.27 g/L/d) when grown in 50% strength swine wastewater. Cell immobilization using sponge as the solid carrier further enhanced maximal biomass concentration and protein productivity to 8.08 g/L and 0.272 g/L/d, respectively. Reuse of microalgae loaded sponge resulted in an average biomass production and protein productivity of 6.51 g/L and 0.15 g/L/d, respectively. The COD, TN and TP removal efficiency for the swine wastewater was 90.1, 97.0 and 92.8%, respectively. This innovative swine wastewater treatment method has demonstrated excellent performance on simultaneous swine wastewater treatment and protein-rich microalgal biomass production.
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Affiliation(s)
- Chun-Yen Chen
- University Center for Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - En-Wei Kuo
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Dillirani Nagarajan
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Shih-Hsin Ho
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, China
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung 407, Taiwan; Center for Nanotechnology, Tunghai University, Taichung 407, Taiwan.
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Oliveira GA, Carissimi E, Monje-Ramírez I, Velasquez-Orta SB, Rodrigues RT, Ledesma MTO. Comparison between coagulation-flocculation and ozone-flotation for Scenedesmus microalgal biomolecule recovery and nutrient removal from wastewater in a high-rate algal pond. BIORESOURCE TECHNOLOGY 2018; 259:334-342. [PMID: 29574313 DOI: 10.1016/j.biortech.2018.03.072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 06/08/2023]
Abstract
The removal of nutrients by Scenedesmus sp. in a high-rate algal pond, and subsequent algal separation by coagulation-flocculation or flotation with ozone to recover biomolecules, were evaluated. Cultivation of Scenedesmus sp. in wastewater resulted in complete NH3-H removal, plus 93% total nitrogen and 61% orthophosphate removals. Ozone-flotation obtained better water quality results than coagulation-flocculation for most parameters (NH3-N, NTK, nitrate and nitrite) except orthophosphate. Ozone-flotation, also produced the highest recovery of lipids, carbohydrates and proteins which were 0.32 ± 0.03, 0.33 ± 0.025 and 0.58 ± 0.014 mg/mg of biomass, respectively. In contrast, there was a low lipid extraction of 0.21 mg of lipids/mg of biomass and 0.12-0.23 mg of protein/mg of biomass in the coagulation-flocculation process. In terms of biomolecule recovery and water quality, ozone showed better results than coagulation-flocculation.
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Affiliation(s)
- Gislayne Alves Oliveira
- Departamento de Pós Graduação em Engenharia Civil, Centro de Tecnologias, Universidade Federal de Santa Maria, Camobi 97105-900, Santa Maria, RS, Brazil
| | - Elvis Carissimi
- Departamento de Pós Graduação em Engenharia Civil, Centro de Tecnologias, Universidade Federal de Santa Maria, Camobi 97105-900, Santa Maria, RS, Brazil
| | - Ignacio Monje-Ramírez
- Instituto de Ingeniería, Coordinación de Ingeniería Ambiental, Universidad Nacional Autónoma de México, Ciudad Universitaria, CP. 04510, CDMX, Mexico
| | - Sharon B Velasquez-Orta
- School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle Upon Tyne NE1 7RU, England, UK
| | - Rafael Teixeira Rodrigues
- Departamento de Engenharia de Minas, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 91501-970 Porto Alegre, RS, Brazil
| | - María Teresa Orta Ledesma
- Instituto de Ingeniería, Coordinación de Ingeniería Ambiental, Universidad Nacional Autónoma de México, Ciudad Universitaria, CP. 04510, CDMX, Mexico.
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