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Liu J, Liu L, Wang S, Sun S, Hu C, Zhao Y. Enhancement of carbon nanotubes on microalgal-fungal consortium formation and wastewater treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119120. [PMID: 37778062 DOI: 10.1016/j.jenvman.2023.119120] [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: 02/16/2023] [Revised: 06/08/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023]
Abstract
As a promising material with an efficient light capture capability, a low amount of carbon nanotubes can affect growth and photosynthesis by regulating microalgal cells, thereby enhancing the pollutant removal efficiency in wastewater. In this study, microalgal-fungal consortia of Chlorella vulgaris and Ganoderma lucidum were developed with different types and concentrations of carbon nanotubes. The treatment effect of microalgal-fungal consortia on simulated digestate was also studied. The results demonstrate that 1.5 mg/L of carboxylated multi-walled carbon nanotubes remarkably promoted the formation, growth and photosynthesis of consortium. The dry weight and chlorophyll a content reached 19.3 ± 0.53 mg/symbiont and 27.3 ± 0.52 μg/L, respectively. Moreover, the removal efficiency of chemical oxygen demand, total nitrogen, total phosphorus and tetracycline hydrochloride were 94.1%, 65.5%, 61.9% and 96.2%, respectively. Overall, these findings suggest a promising future for the use of carbon nanotubes in wastewater treatment by regulating microalgal-fungal consortia.
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Affiliation(s)
- Juan Liu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, PR China
| | - Li Liu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, PR China
| | - Shilun Wang
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, PR China
| | - Shiqing Sun
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing, 314001, PR China
| | - Changwei Hu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, PR China.
| | - Yongjun Zhao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, PR China.
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Liu J, Qin H, Meng X, Fan X, Zhu N, Sun S, Zhao Y, Jiang Z. Nutrient removal from biogas slurry and biogas upgrading by microalgae-fungi-bacteria co-cultivation under different carbon nanotubes concentration. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:36023-36032. [PMID: 36542281 DOI: 10.1007/s11356-022-24822-8] [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: 08/01/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
In this study, Chlorella vulgaris, Ganoderma lucidum, and endophytic bacteria were co-cultivated with the stimulation of strigolactone analogs GR24 to prepare pellets. During the purification of biogas slurry and biogas, multi-walled carbon nanotubes (MWCNTs) were introduced to enhance the removal efficiencies of nutrients and CO2. The results showed that both GR24 and MWCNTs affected the purification of biogas slurry and biogas. The maximum chemical oxygen demand, total nitrogen, total phosphorus, and CO2 removal efficiencies of the Chlorella vulgaris-Ganoderma lucidum-endophytic bacterial symbionts were 82.57 ± 7.96% (P < 0.05), 82.14 ± 7.87% (P < 0.05), 84.27 ± 7.96% (P < 0.05), and 63.93 ± 6.22% (P < 0.05), respectively, with the induction of 10-9 M GR24 and 1 mg L-1 MWCNTs. Moreover, the growth and photosynthetic performance of the symbionts were consistent with the removal effects. The Chlorella vulgaris-Ganoderma lucidum-endophytic bacterial symbionts obtained high growth rates and enzyme activity with the maximum growth rate of 0.365 ± 0.03 d-1, mean daily productivity of 0.182 ± 0.016 g L-1 d-1, and carbonic anhydrase activity of 31.07 ± 2.75 units, respectively. These results indicated that an appropriate concentration of GR24 and MWCNTs could promote the growth of symbionts, reinforce the purification effects of biogas slurry and biogas, and provide a new idea for the simultaneous purification of wastewater and biogas.
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Affiliation(s)
- Jinsong Liu
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing, 314001, People's Republic of China
| | - Haiyan Qin
- The 11th Geological Section of Zhejiang Province, 325006, Wenzhou, People's Republic of China
| | - Xiangzhou Meng
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
- Jiaxing-Tongji Environmental Research Institute, 1994 Linggongtang Road, Jiaxing, 314051, Zhejiang Province, People's Republic of China
| | - Xingjun Fan
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, 233100, People's Republic of China
| | - Ningzheng Zhu
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
- Jiaxing-Tongji Environmental Research Institute, 1994 Linggongtang Road, Jiaxing, 314051, Zhejiang Province, People's Republic of China
| | - Shiqing Sun
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing, 314001, People's Republic of China
| | - Yongjun Zhao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, People's Republic of China.
| | - Zhoujia Jiang
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing, 314001, People's Republic of China
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, People's Republic of China
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Wei J, Wang Z, Zhao C, Sun S, Xu J, Zhao Y. Effect of GR24 concentrations on tetracycline and nutrient removal from biogas slurry by different microalgae-based technologies. BIORESOURCE TECHNOLOGY 2023; 369:128400. [PMID: 36442601 DOI: 10.1016/j.biortech.2022.128400] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/20/2022] [Accepted: 11/23/2022] [Indexed: 06/16/2023]
Abstract
A biogas slurry composed of carbon, nitrogen, phosphorus, and antibiotics was generated. Investigations into the nutrient and tetracycline removal performance of four microalgae-based contaminant removal technologies, including Chlorella vulgaris, C. vulgaris co-cultured with endophytic bacteria, C. vulgaris co-cultured with Ganoderma lucidum, and C. vulgaris co-cultured with G. lucidum and endophytic bacteria, were conducted. The algal-bacterial-fungal consortium with 10-9 M strigolactone (GR24) yielded the maximum growth rate and average daily yield for algae at 0.325 ± 0.03 d-1 and 0.192 ± 0.02 g L-1 d-1, respectively. The highest nutrient/ tetracycline removal efficiencies were 83.28 ± 7.95 % for chemical oxygen demand (COD), 82.62 ± 7.97 % for total nitrogen (TN), 85.15 ± 8.26 % for total phosphorus (TP) and 83.92 ± 7.65 % for tetracycline. Adding an algal-bacterial-fungal consortium with an optimal synthetic analog GR24 concentration is seemingly an encouraging strategy for enhancing pollutant removal by algae, possibly overcoming the challenges of eutrophication and antibiotic pollution.
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Affiliation(s)
- Jing Wei
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, PR China
| | - Zhengfang Wang
- Suzhou Institute of Trade & Commerce, Suzhou 215000, PR China
| | - Chunzhi Zhao
- School of Ecological Technology & Engineering, Shanghai Institute of Technology, Shanghai 201400, PR China
| | - Shiqing Sun
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, PR China
| | - Jie Xu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Yongjun Zhao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China.
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Xu B, Zhao Y, Zhao C, Wei J. Effect of different CO 2 concentrations on biogas upgrading and nutrient removal by microalgae-fungi co-culture. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:91345-91355. [PMID: 35896875 DOI: 10.1007/s11356-022-22165-y] [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: 12/10/2021] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Owing to the high carbon dioxide (CO2)-fixation efficiency, microalgae-based technology has been widely used for biogas purification. The present study explored the effect of CO2 concentration on biogas purification by an algal-fungal-bacterial symbiotic system. Two algal-fungal-bacterial symbiotic systems were cultivated to purify four simulated biogas samples with different CO2 concentrations. The results showed that GR24, a synthetic analog of strigolactone, stimulated the growth of the algal-fungal-bacterial symbiotic system. The optimal CO2 concentration for the purification of the simulated biogas was 45% (V/V), and the optimal symbiotic system was Chlorella vulgaris-Ganoderma lucidum-endophytic bacteria-GR24. The maximum chemical oxygen demand (COD; 82.61 ± 7.73%), total nitrogen (TN; 81.36 ± 7.97%), total phosphorus (TP; 85.69 ± 8.19), and CO2 (69.23 ± 6.56%) removal efficiencies were detected with the addition of 10-9 M GR24 to the C. vulgaris-G. lucidum-endophytic bacterial symbiotic system. These findings confirmed the effect of CO2 concentration on the purification of biogas by the algal-bacterial symbiotic system. The study provides a theoretical basis for further research on the treatment of wastewater and biogas.
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Affiliation(s)
- Bing Xu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Yongjun Zhao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, People's Republic of China
| | - Chunzhi Zhao
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, 200235, People's Republic of China
| | - Jing Wei
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing, 314001, People's Republic of China.
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Effect of different microalga-based technologies on biogas upgrading and nutrient removal by induction with strigolactone and endophytic bacteria. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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