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Sukul U, Das K, Chen JS, Sharma RK, Dey G, Banerjee P, Taharia M, Lee CI, Maity JP, Lin PY, Chen CY. Insight interactions of engineered nanoparticles with aquatic higher plants for phytoaccumulation, phytotoxicity, and phytoremediation applications: A review. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 264:106713. [PMID: 37866164 DOI: 10.1016/j.aquatox.2023.106713] [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: 08/14/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/24/2023]
Abstract
With the growing age of human civilization, industrialization has paced up equally which is followed by the innovation of newer concepts of science and technology. One such example is the invention of engineered nanoparticles and their flagrant use in widespread applications. While ENPs serve their intended purposes, they also disrupt the ecological balance by contaminating pristine aquatic ecosystems. This review encompasses a comprehensive discussion about the potent toxicity of ENPs on aquatic ecosystems, with a particular focus on their impact on aquatic higher plants. The discussion extends to elucidating the fate of ENPs upon release into aquatic environments, covering aspects ranging from morphological and physiological effects to molecular-level phytotoxicity. Furthermore, this level of toxicity has been correlated with the determination of competent plants for the phytoremediation process towards the mitigation of this ecological stress. However, this review further illustrates the path of future research which is yet to be explored. Determination of the genotoxicity level of aquatic higher plants could explain the entire process comprehensively. Moreover, to make it suitable to be used in natural ecosystems phytoremediation potential of co-existing plant species along with the presence of different ENPs need to be evaluated. This literature will undoubtedly offer readers a comprehensive understanding of the stress induced by the irresponsible release of engineered nanoparticles (ENP) into aquatic environments, along with insights into the resilience characteristics of these pristine ecosystems.
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Affiliation(s)
- Uttara Sukul
- Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Koyeli Das
- Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Jung-Sheng Chen
- Department of Medical Research, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Raju Kumar Sharma
- Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Gobinda Dey
- Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Pritam Banerjee
- Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Md Taharia
- Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Cheng-I Lee
- Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Center for Nano Bio-Detection, Center for Innovative Research on Aging Society, AIM-HI, National Chung Cheng University, 168, University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Jyoti Prakash Maity
- Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Environmental Science Laboratory, Department of Chemistry, School of Applied Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha 751024, India
| | - Pin-Yun Lin
- Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Chien-Yen Chen
- Doctoral Progam in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan; Center for Nano Bio-Detection, Center for Innovative Research on Aging Society, AIM-HI, National Chung Cheng University, 168, University Road, Min-Hsiung, Chiayi County 62102, Taiwan.
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Liu S, Li H, Wang Y. Research on microbial community structure and treatment of dye wastewater with the enhancement of activated sludge by magnetic field at low temperature. RSC Adv 2023; 13:16471-16479. [PMID: 37274396 PMCID: PMC10233346 DOI: 10.1039/d3ra00048f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 05/23/2023] [Indexed: 06/06/2023] Open
Abstract
This study characterized the effect of different magnetic field (MF) intensities (10-40 mT) on the degradation of dye wastewater by activated sludge and the diversity of the microbial community at a low temperature (5 °C). The examined MF range promoted the degradation of dye wastewater by the microorganisms in the activated sludge at a low temperature. It was found that the optimal degradation performance was achieved at 30 mT. Additionally, the maximum degradation efficiency of COD and chromaticity (66.30% and 60.87%, respectively) were also achieved at 30 mT and the peak TTC-dehydrogenase activity (TTC-DHA) was 9.44 mg TF g-1 SS. Furthermore, it was revealed that MF enhancement increased the richness and diversity of activated sludge microorganisms, thus promoting the growth and reproduction of activated sludge microorganisms at low temperatures. Bacterial taxa known to effectively participate in the degradation of pollutants by activated sludge were enriched at 30 mT. The dominant bacteria under 30 mT were Flavobacterium, Hydrogenophaga, Gemmatimonadaceae, Zoogloea, Saprospiraceae, Pseudomonas, and Geothrix.
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Affiliation(s)
- Suo Liu
- School of Civil Engineering, Southeast University 2# Southeast University Road, Jiangning District Nanjing China
- Key Lab of Jiangsu Provincial Environmental Engineering, Jiangsu Provincial Academy of Environmental Science #176 Jiangdong North Road, Gulou District Nanjing China
| | - He Li
- School of Civil Engineering, Southeast University 2# Southeast University Road, Jiangning District Nanjing China
| | - Yizhuo Wang
- School of Civil Engineering, Southeast University 2# Southeast University Road, Jiangning District Nanjing China
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Khan RA, Khan NA, El Morabet R, Alsubih M, Khan AR, Khan S, Mubashir M, Balakrishnan D, Khoo KS. Comparison of constructed wetland performance coupled with aeration and tubesettler for pharmaceutical compound removal from hospital wastewater. ENVIRONMENTAL RESEARCH 2023; 216:114437. [PMID: 36181898 DOI: 10.1016/j.envres.2022.114437] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/07/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Pharmaceutical compounds being able to alter, retard, and enhance metabolism has gained attention in recent time as emerging pollutant. However, hospitals which are part of every urban landscape have yet to gain attention in terms of its hospital wastewater treatment to inhibit pharmaceutical compounds from reaching environment. Hence this study evaluated performance of constructed wetland in combination with tubesettler and aeration based on removal efficiency and ecological risk assessment (HQ). The removal efficiency of constructed wetland with plantation was higher by 31% (paracetamol), 102% (ibuprofen), 46%, (carbamazepine), 57% (lorazepam), 54% (erythromycin), 31% (ciprofloxacin) and 20% (simvastatin) against constructed wetland without plantation. Constructed wetland with aeration efficiency increased for paracetamol, ibuprofen, carbamazepine, lorazepam, erythromycin, ciprofloxacin, and simvastatin removal efficiency were higher by 58%, 130%, 52%, 79%, 107%, 57%, and 29% respectively. In constructed wetland with plantation, removal efficiency was higher by 20% (paracetamol), 13% (ibuprofen), 4% (carbamazepine), 14% (lorazepam), 34% (erythromycin), 19% (ciprofloxacin) and 7% (simvastatin). High ecological risk was observed for algae, invertebrate and fish with hazard quotient values in range of 2.5-484, 10-631 and 1-78 respectively. This study concludes that if space is the limitation at hospitals aeration with constructed wetland can be adopted. If space is available, constructed wetland with tubesettler is suitable, economic and environmentally friendly option. Future research works can focus on evaluating other processes combination with constructed wetland.
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Affiliation(s)
- Roohul Abad Khan
- Department of Civil Engineering, King Khalid University, Abha, Saudi Arabia
| | - Nadeem A Khan
- Department of Civil Engineering, Mewat Engineering College, Nuh, 122107, India; Department of Civil Engineering Jamia Millia Islamia, New Delhi, 110025, India
| | - Rachida El Morabet
- Lades Lab, FLSH-M, Department of Geography, Hassan II University of Casablanca, Mohammedia, Morocco
| | - Majed Alsubih
- Department of Civil Engineering, King Khalid University, Abha, Saudi Arabia
| | - Amadur Rahman Khan
- Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, India
| | - Saimah Khan
- Department of Chemistry, Integral University, Lucknow, India
| | - Muhammad Mubashir
- Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology and Innovation, 57000 Kuala Lumpur, Malaysia.
| | - Deepanraj Balakrishnan
- College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
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Huang L, Bao J, Zhao F, Liang Y, Chen Y. New insight for purifying polluted river water using the combination of large-scale rotating biological contactors and integrated constructed wetlands in the cold season. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 324:116433. [PMID: 36352732 DOI: 10.1016/j.jenvman.2022.116433] [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: 07/29/2022] [Revised: 09/19/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Ecological treatment technologies, applied to deal with polluted river water in the low temperature season, remain limited. In this study, a new insight was put forward for purifying polluted river water using a combination system (CS) of large-scale rotating biological contactors (RBCs) and integrated constructed wetlands in autumn and winter. The treatment performance, average removal contribution (RC), nitrification and denitrification rates, microbial community structure, and ecosystem service value were considered to estimate the combination system. Results revealed that the average removal efficiencies of ammonium (NH4+-N), total nitrogen (TN), total phosphorus (TP), and chemical oxygen demand (COD) reached 93.9%, 20.8%, 36.5%, and 37.1%, respectively. The combination system showed excellent removal efficiency of NH4+-N regardless of the effect of low temperature. The maximum values of nitrification and denitrification rates were 59.57 g N/(m3·d) and 0.78 g N/(m2·d), respectively. Considerable differences in bacterial community diversity, richness and relative abundance of functional microbes were observed in the main treatment units, resulting in different average RC to pollutants. The unit capital cost of CS purifying polluted river water was 260 USD/m3 and the operation and maintenance cost was 0.144 million USD/yr. Meanwhile, the ecosystem service value of the CS was 0.334 million USD in autumn and winter. CS not only possessed excellent pollutant purifying efficiencies, but also achieved high ecological service value in the cold season.
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Affiliation(s)
- Lei Huang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing, 400715, China; Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400716, China.
| | - Jun'an Bao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Fang Zhao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Yinkun Liang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Yucheng Chen
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing, 400715, China; Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400716, China.
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Gao F, Liu G, She Z, Ji J, Gao M, Zhao Y, Guo L, Jin C. Effects of salinity on pollutant removal and bacterial community in a partially saturated vertical flow constructed wetland. BIORESOURCE TECHNOLOGY 2021; 329:124890. [PMID: 33662852 DOI: 10.1016/j.biortech.2021.124890] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
This study investigated the influence of salinity on pollutant removal and bacterial community within a partially saturated vertical flow constructed wetland (PS-VFCW). High removal rates of NH4+-N (88.29 ± 4.97-100 ± 0%), total inorganic nitrogen (TIN) (50.00 ± 7.21-62.81 ± 7.21%) and COD (91.08 ± 2.66-100 ± 0%) were achieved at 0.4-2.4% salinity levels. The removal of ammonia, TIN and organic matter occurred mainly in unsaturated zone. Salt-adaptable microbes became the dominant bacteria with salinity elevated. The proportion of ammonia-oxidizing bacteria (AOB) in the 0-5 cm depth layer (unsaturated zone) decreased obviously as the salinity increased to 2.4%. Nitrite-oxidizing bacteria (NOB) in the 0-5 cm depth layer showed a decreasing trend with elevated salinity. Denitrifying bacteria (DNB) in the 0-5 cm depth layer maintained high abundance (27.70-53.60%) at 0.4-2.4% salinity levels. At 2.4% salinity, AOB, NOB and DNB were observed in the unsaturated zones and saturated zones, and showed higher abundance in the unsaturated zone.
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Affiliation(s)
- Feng Gao
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, 266100 Qingdao, China
| | - Guochen Liu
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, 266100 Qingdao, China
| | - Zonglian She
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, 266100 Qingdao, China; College of Environmental Science and Engineering, Ocean University of China, 266100 Qingdao, China.
| | - Junyuan Ji
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, 266100 Qingdao, China; College of Environmental Science and Engineering, Ocean University of China, 266100 Qingdao, China
| | - Mengchun Gao
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, 266100 Qingdao, China; College of Environmental Science and Engineering, Ocean University of China, 266100 Qingdao, China
| | - Yangguo Zhao
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, 266100 Qingdao, China; College of Environmental Science and Engineering, Ocean University of China, 266100 Qingdao, China
| | - Liang Guo
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, 266100 Qingdao, China; College of Environmental Science and Engineering, Ocean University of China, 266100 Qingdao, China
| | - Chunji Jin
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, 266100 Qingdao, China; College of Environmental Science and Engineering, Ocean University of China, 266100 Qingdao, China
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Abstract
Wetlands are viable sinks for nitrate and have also been identified as a source of nitrous oxide, a product of two microbially regulated processes: nitrification and denitrification. Anthropogenic expansion of nitrogen is a leading cause of the eutrophication of water bodies and may also contribute to the deterioration of the ozone layer in the stratosphere. Wetlands ameliorate the quality of water percolating through them, by retaining nutrients and sequestering carbon, and simultaneously enhancing the flora and fauna diversity of these landscapes. Among the many services these wetlands provide, they also alleviate nitrate pollution by attenuating reactive nitrogen from agricultural drainage and ensure the effective reclamation of the wastewater. The literature regarding the viability of wetlands suggests a linear relationship between the removal of nitrogen and its loading rate, thereby suggesting a potential loss of nitrogen removal capacity due to the loss of wetland area. This review discusses the nitrogen removal mechanisms in existing wetlands along with the environmental variables affecting the optimum performance and management of these wetlands, in terms of greenhouse gas retention and biodiversity. Conservation of these wetlands should be contemplated to maintain the world-wide nitrogen cycle and diminish the negative repercussions of surplus nitrogen loading.
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Sun Y, Zhou P, Zhang N, Zhang Z, Guo Q, Chen C, Cui L. Effects of matrix modification and bacteria amendment on the treatment efficiency of municipal tailwater pollutants by modified vertical flow constructed wetland. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 281:111920. [PMID: 33418389 DOI: 10.1016/j.jenvman.2020.111920] [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: 06/16/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Although vertical flow constructed wetland (VFCW) has great potentials for degradation of water contaminants, traditional VFCW has limited removal efficiencies for pollutants. This study constructed three sets of modified VFCW systems, including VFCW-A with matrix-modification using mixture of biochar and activated carbon, VFCW-B with microbial amendment using denitrifying bacteria, and VFCW-C with combined treatments of both. Their removal efficiencies for various pollutants in synthetic municipal tailwater were investigated. Results showed that the removal efficiencies for NH4-N, NO3-N, total nitrogen (TN), total phosphorus (TP), and chemical oxygen demand (COD) by VFCW-C were higher than VFCW-B throughout the experimental period, indicating that matrix-modification could improve the VFCW performance. The higher removal efficiencies for TN, TP, and COD by VFCW-C than VFCW-A also suggested the effectiveness of microbial amendment in VFCW. However, the improved removal for NO3-N by VFCW-C over VFCW-A became less obvious at later operation stage due to insufficient carbon source. All three VFCWs achieved their best removal efficiency when carbon source was supplemented at CH3COO-/TN ratio of 0.5. Our study suggested that the combined treatment of matrix-modification using biochar/activated carbon mixture and microbial amendment using denitrifying bacteria could effectively enhance the treatment efficiency of VFCW systems for tailwater pollutants from sewage plant.
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Affiliation(s)
- Yaping Sun
- Key Laboratory of Agro-environments in Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong, 510642, PR China
| | - Pincheng Zhou
- Key Laboratory of Agro-environments in Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong, 510642, PR China
| | - Nan Zhang
- Key Laboratory of Agro-environments in Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong, 510642, PR China
| | - Ze Zhang
- Key Laboratory of Agro-environments in Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong, 510642, PR China
| | - Qingwei Guo
- South China Institute of Environmental Sciences, MEE, 16-18 Ruihe Road, Huangpu District, Guangzhou, Guangdong, 510530, PR China
| | - Chengyu Chen
- Key Laboratory of Agro-environments in Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong, 510642, PR China.
| | - Lihua Cui
- Key Laboratory of Agro-environments in Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong, 510642, PR China.
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Cao C, Huang J, Yan CN, Ma YX, Xiao J, Zhang XX. Comparative analysis of upward and downward vertical flow constructed wetlands on the nitrogen removal and functional microbes treating wastewater containing Ag nanoparticles. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 278:111573. [PMID: 33137687 DOI: 10.1016/j.jenvman.2020.111573] [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: 07/27/2020] [Revised: 10/23/2020] [Accepted: 10/24/2020] [Indexed: 06/11/2023]
Abstract
This study investigated impacts of silver nanoparticles (AgNPs) on nitrogen removal within constructed wetlands (CWs) with different flow directions. The obtained results showed that addition of AgNPs at 0.5 and 2 mg/L significantly inhibited NH4+-N removal, resulting from lower abundances of functional genes (amoA and nxrA) within CWs. And higher abundances of amoA and nxrA genes at 0.5 mg/L were observed in downward flow CW, leading to better NH4+-N removal, compared to upward flow CW. Besides, nitrifying genes amoA and nxrA in upward flow CW at 2.0 mg/L exhibited higher than downward flow CW, explaining better NH4+-N removal in upward flow CW. 0.5 mg/L AgNPs significantly declined NO3--N and TN removal, resulted from decreasing abundances of nirK, nirS and nosZ. In contrast, abundances of nirK, nirS and nosZ genes had slightly lower or higher than before adding AgNPs in upward flow CW, leading to lower NO3--N and TN effluent concentrations. High throughput sequencing also indicated the changes of functional bacterial community after exposing to AgNPs.
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Affiliation(s)
- Chong Cao
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, No. 2 Southeast University Road, Nanjing, Jiangsu Province, 211189, China
| | - Juan Huang
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, No. 2 Southeast University Road, Nanjing, Jiangsu Province, 211189, China.
| | - Chun-Ni Yan
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, No. 2 Southeast University Road, Nanjing, Jiangsu Province, 211189, China
| | - Yi-Xuan Ma
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, No. 2 Southeast University Road, Nanjing, Jiangsu Province, 211189, China
| | - Jun Xiao
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, No. 2 Southeast University Road, Nanjing, Jiangsu Province, 211189, China
| | - Xin-Xin Zhang
- Dept. of Municipal Engineering, School of Civil Engineering, Southeast University, No. 2 Southeast University Road, Nanjing, Jiangsu Province, 211189, China
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Yang X, He Q, Guo F, Sun X, Zhang J, Chen Y. Impacts of carbon-based nanomaterials on nutrient removal in constructed wetlands: Microbial community structure, enzyme activities, and metabolism process. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123270. [PMID: 32645543 DOI: 10.1016/j.jhazmat.2020.123270] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 06/08/2020] [Accepted: 06/20/2020] [Indexed: 06/11/2023]
Abstract
The increasing use of raw carbon-based nanomaterials (CBNs) will inevitably affect wastewater treatment systems. Constructed wetlands (CWs) are ecological wastewater treatment facilities and can intercept the vast particles pollutant, including CBNs. However, the impacts of CBNs on the treatment performance of CWs have no available knowledge. Therefore, we systematically inspected the effects of single-walled and multi-walled carbon nanotubes (SWCNTs and MWCNTs) and fullerene nanoparticles (C60) on CW performance under 180-day exposure to 0, 10 and 1000 μg/L concentrations. The results showed that CBNs had marginally adverse impacts on chemical oxygen demand (COD) and total phosphorus (TP) removal, whereas nitrogen removal declined by 24.1 %-42.7 % following long-term exposure to CBNs. MWCNTs had the greatest inhibition effect on nitrogen removal, followed by SWCNTs and C60. The CBNs also induced reactive oxygen species (ROS) overproduction as the increasing concentration, which confirmed that CBNs have biotoxic effects in CWs. The variation of functional microbial community and the inhibition of enzyme activities were the dominant reasons for the decline in nitrogen removal efficiency. Furthermore, predictive functional profiling showed that CBNs affected functional gene abundance, and caused a decline in the enzymes abundance connected to nitrogen removal by the end of the 180-day exposure period.
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Affiliation(s)
- Xiangyu Yang
- Key Laboratory of the Three Gorges Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Campus B 83 Shabeijie, Shapingba, Chongqing, 400044, PR China; National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing, 400044, PR China
| | - Qiang He
- Key Laboratory of the Three Gorges Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Campus B 83 Shabeijie, Shapingba, Chongqing, 400044, PR China; National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing, 400044, PR China
| | - Fucheng Guo
- Key Laboratory of the Three Gorges Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Campus B 83 Shabeijie, Shapingba, Chongqing, 400044, PR China; National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing, 400044, PR China
| | - Xiaohui Sun
- Key Laboratory of the Three Gorges Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Campus B 83 Shabeijie, Shapingba, Chongqing, 400044, PR China; National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing, 400044, PR China
| | - Junmao Zhang
- Key Laboratory of the Three Gorges Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Campus B 83 Shabeijie, Shapingba, Chongqing, 400044, PR China; National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing, 400044, PR China
| | - Yi Chen
- Key Laboratory of the Three Gorges Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Campus B 83 Shabeijie, Shapingba, Chongqing, 400044, PR China; National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing, 400044, PR China.
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Aquatic Macrophytes in Constructed Wetlands: A Fight against Water Pollution. SUSTAINABILITY 2020. [DOI: 10.3390/su12219202] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
There is growing concern among health institutions worldwide to supply clean water to their populations, especially to more vulnerable communities. Although sewage treatment systems can remove most contaminants, they are not efficient at removing certain substances that can be detected in significant quantities even after standard treatments. Considering the necessity of perfecting techniques that can remove waterborne contaminants, constructed wetland systems have emerged as an effective bioremediation solution for degrading and removing contaminants. In spite of their environmentally friendly appearance and efficiency in treating residual waters, one of the limiting factors to structure efficient artificial wetlands is the choice of plant species that can both tolerate and remove contaminants. For sometimes, the chosen plants composing a system were not shown to increase wetland performance and became a problem since the biomass produced must have appropriated destination. We provide here an overview of the use and role of aquatic macrophytes in constructed wetland systems. The ability of plants to remove metals, pharmaceutical products, pesticides, cyanotoxins and nanoparticles in constructed wetlands were compared with the removal efficiency of non-planted systems, aiming to evaluate the capacity of plants to increase the removal efficiency of the systems. Moreover, this review also focuses on the management and destination of the biomass produced through natural processes of water filtration. The use of macrophytes in constructed wetlands represents a promising technology, mainly due to their efficiency of removal and the cost advantages of their implantation. However, the choice of plant species composing constructed wetlands should not be only based on the plant removal capacity since the introduction of invasive species can become an ecological problem.
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11
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Yu G, Wang G, Li J, Chi T, Wang S, Peng H, Chen H, Du C, Jiang C, Liu Y, Zhou L, Wu H. Enhanced Cd 2+ and Zn 2+ removal from heavy metal wastewater in constructed wetlands with resistant microorganisms. BIORESOURCE TECHNOLOGY 2020; 316:123898. [PMID: 32736182 DOI: 10.1016/j.biortech.2020.123898] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 06/11/2023]
Abstract
The bioaugmentation role of microbes is often impeded by heavy metal (HM) ions in constructed wetlands (CWs). To explore the interaction between microbes and HM ions, two identical CWs: an MCW (with resistant microorganisms) and a CCW (as control) were used in this study. Experiments analyzed static adsorption performance in a synthetic HM solution. The removal performance of Cd2+ and Zn2+ was further investigated in both CWs. The removal efficiencies (REs) of 81.92-99.56% and 74.05-98.79% were achieved for Cd2+ and Zn2+ in the adsorption study, respectively. Significantly higher REs of Cd2+ (99.60%), and Zn2+ (94.41%) were achieved in the MCW. The microbial community analysis revealed that the dominant genera were Serratia and Pseudomonas in the MCW. The subcellular analysis further demonstrated that the HMs bioaccumulated mainly in the cytomembrane and cell wall. These results indicate that CW with resistant microorganisms inoculated was an effective strategy for treating HMs wastewater.
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Affiliation(s)
- Guanlong Yu
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
| | - Guoliang Wang
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
| | - Jianbing Li
- Northern Soil and Groundwater Remediation Research Laboratory, University of Northern British Columbia, Prince George V2N 4Z9, Canada
| | - Tianying Chi
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
| | - Shitao Wang
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
| | - Haiyuan Peng
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
| | - Hong Chen
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China.
| | - Chunyan Du
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
| | - Changbo Jiang
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
| | - Yuanyuan Liu
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China
| | - Lu Zhou
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
| | - Haipeng Wu
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, PR China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, PR China
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Martinez-Guerra E, Ghimire U, Nandimandalam H, Norris A, Gude VG. Wetlands for environmental protection. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1677-1694. [PMID: 32744347 DOI: 10.1002/wer.1422] [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: 05/27/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
This article presents an update on the research and practical demonstration of wetland-based treatment technologies for protecting water resources and environment covering papers published in 2019. Wetland applications in wastewater treatment, stormwater management, and removal of nutrients, metals, and emerging pollutants including pathogens are highlighted. A summary of studies focusing on the effects of vegetation, wetland design and operation strategies, and process configurations and modeling, for efficient treatment of various municipal and industrial wastewaters, is included. In addition, hybrid and innovative processes with wetlands as a platform treatment technology are presented.
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Affiliation(s)
- Edith Martinez-Guerra
- Environmental Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS, USA
| | - Umesh Ghimire
- Department of Civil and Environmental Engineering, Mississippi State University, Starkville, MS, USA
| | - Hariteja Nandimandalam
- Department of Civil and Environmental Engineering, Mississippi State University, Starkville, MS, USA
| | - Anna Norris
- Department of Civil and Environmental Engineering, Mississippi State University, Starkville, MS, USA
| | - Veera Gnaneswar Gude
- Department of Civil and Environmental Engineering, Mississippi State University, Starkville, MS, USA
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13
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Khan NA, El Morabet R, Khan RA, Ahmed S, Dhingra A, Alsubih M, Khan AR. Horizontal sub surface flow Constructed Wetlands coupled with tubesettler for hospital wastewater treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 267:110627. [PMID: 32421669 DOI: 10.1016/j.jenvman.2020.110627] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/03/2020] [Accepted: 04/17/2020] [Indexed: 05/12/2023]
Abstract
Hospital wastewater are a lurking threat to environment and human health security for any given moment of time owing to its complexity and high vulnerability to cause disease outbreak. Though there are a number of treatment process for wastewater., there is a high need for employing cost-efficient and sustainable method of treatment. Hence a pilot scale horizontal surface flow Constructed Wetland (HSFCW) coupled with Tubesettler was installed at New Delhi, India (February to may 2019). This study reports comparative pollutants removal from hospital wastewater using Constructed Wetlands and associated tubesettler dosed with Hospital wastewater. A pilot scale CW system was used for treating 10m3/day of hospital wastewater. The system was tested for 3 Months to evaluate its performance for removing pollutants from the wastewater. The HSFCW coupled with tubesettler achieved over all removal efficiency of 94% (COD), MLSS (97%), TSS (98%), BOD5 (96%), Phosphate (79%). However, process of nitrification was not observed and accumulation of Nitrate up to 197% was observed. The study concluded that it may be due to the presence of pharmaceuticals and other elements present in hospital wastewater. This conclusion was based on the fact that Alkalinity increased by 52% in effluent and pH value also exhibited an average increase of 12%. Further research studies are required to investigate effect of pharmaceutical originating from hospital on treatment efficiency, to incorporate anaerobic setup to complete denitrification-nitrification process and also to determine efficiency of thermophilic, mesophilic, and psychrophilic bacteria with respect to climate and temperature.
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Affiliation(s)
- Nadeem Ahmed Khan
- Department of Civil Engineering, Jamia Millia Islamia, New Delhi, India
| | - Rachida El Morabet
- Department of Geography, LADES, FLSH-M, Hassan II University of Casablanca, Mohammedia, Morocco
| | - Roohul Abad Khan
- Department of Civil Engineering, King Khalid University, Abha, Saudi Arabia.
| | - Sirajuddin Ahmed
- Department of Civil Engineering, Jamia Millia Islamia, New Delhi, India
| | - Aastha Dhingra
- Department of Civil Engineering, Jamia Millia Islamia, New Delhi, India
| | - Majed Alsubih
- Department of Civil Engineering, King Khalid University, Abha, Saudi Arabia
| | - Amadur Rahman Khan
- Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, India
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14
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Ebrahimbabaie P, Meeinkuirt W, Pichtel J. Phytoremediation of engineered nanoparticles using aquatic plants: Mechanisms and practical feasibility. J Environ Sci (China) 2020; 93:151-163. [PMID: 32446451 DOI: 10.1016/j.jes.2020.03.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 05/04/2023]
Abstract
Certain plants have demonstrated the capability to take up and accumulate metals, thus offering the potential to remediate metal-contaminated water and sediment. Several aquatic species have further been identified which can take up metal and metal oxide engineered nanoparticles (ENPs). It is important to evaluate if aquatic plants exhibiting potential for metal phytoremediation can be applied to remediation of metallic ENPs. Understanding the interactions between ENPs and aquatic plants, and evaluating possible influences on metal uptake and phytoremediation processes is therefore essential. This review article will address the feasibility of green plants for treatment of ENP-affected aquatic ecosystems. Discussion will include common types of ENPs in current use; transformations of ENPs in aquatic systems; the importance of microorganisms in supporting plant growth; ENP entry into the plant; the influence of microorganisms in promoting plant uptake; and recent findings in phytoremediation of ENP-affected water, including applications to constructed wetlands.
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Affiliation(s)
- Parisa Ebrahimbabaie
- Ball State University, Environment, Geology and Natural Resources, Muncie, IN 47306, USA
| | | | - John Pichtel
- Ball State University, Environment, Geology and Natural Resources, Muncie, IN 47306, USA.
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15
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Lu Y, Zhang E, Hong M, Yin X, Cai H, Yuan L, Yuan F, Li L, Zhao K, Lan X. Analysis of endophytic and rhizosphere bacterial diversity and function in the endangered plant Paeonia ludlowii. Arch Microbiol 2020; 202:1717-1728. [PMID: 32313992 PMCID: PMC7385006 DOI: 10.1007/s00203-020-01882-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 03/25/2020] [Accepted: 04/02/2020] [Indexed: 12/26/2022]
Abstract
Paeonia ludlowii is indigenous to Tibet and has an important ecological and economic value in China. In Tibet, P. ludlowii has been used in folk medicine with relative success. Plant microbial endophytes play an important role in plant growth, health and ecological function. The diversity of endophytic bacteria associated with P. ludlowii remains poorly understood. In this study, the structure of the endophytic bacterial communities associated with different tissues, including fruits, flowers, leaves, stems, and roots, and rhizosphere soils was analyzed with Illumina MiSeq sequencing of bacterial 16S rDNA. A total of 426,240 sequences and 4847 operational taxonomic units (OTUs) were obtained. The OTUs abundance of roots was higher than that of other tissues; however, the OTUs abundance was similar among different deep soil samples. In the plant tissues, Cyanobacteria was the most abundant bacterial phylum, followed by Proteobacteria; however, the most abundant phyla were Proteobacteria and Acidobacteria in soil samples from three different layers. In addition, the diversity and richness of the microorganisms in the soil were very similar to those in roots but higher than those in other tissues of P. ludlowii. Predictive metagenome analysis revealed that endophytic bacteria play critical functional roles in P. ludlowii. This conclusion could facilitate the study of the ecological functions of endophytic bacteria and their interactions with P. ludlowii to analyze the reasons why this important medicinal plant is becoming endangered.
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Affiliation(s)
- Yazhou Lu
- Research Institute of Plateau Ecology, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
- Medicinal Plants Joint Research and Development Centre, Tibet Agriculture and Animal Husbandry College-Southwest University, Nyingchi, 860000 Tibet China
- Food Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
| | - Erhao Zhang
- Medicinal Plants Joint Research and Development Centre, Tibet Agriculture and Animal Husbandry College-Southwest University, Nyingchi, 860000 Tibet China
- Food Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
| | - Mingsheng Hong
- Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Ministry of Education, Nanchong, 637009 Sichuan China
| | - Xiu Yin
- Medicinal Plants Joint Research and Development Centre, Tibet Agriculture and Animal Husbandry College-Southwest University, Nyingchi, 860000 Tibet China
- Food Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
| | - Hao Cai
- Medicinal Plants Joint Research and Development Centre, Tibet Agriculture and Animal Husbandry College-Southwest University, Nyingchi, 860000 Tibet China
- Food Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
| | - Lei Yuan
- Medicinal Plants Joint Research and Development Centre, Tibet Agriculture and Animal Husbandry College-Southwest University, Nyingchi, 860000 Tibet China
- Food Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
| | - Fang Yuan
- Medicinal Plants Joint Research and Development Centre, Tibet Agriculture and Animal Husbandry College-Southwest University, Nyingchi, 860000 Tibet China
- Food Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
| | - Lianqiang Li
- Medicinal Plants Joint Research and Development Centre, Tibet Agriculture and Animal Husbandry College-Southwest University, Nyingchi, 860000 Tibet China
- Food Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
| | - Kentian Zhao
- Department of Resources and Environment, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
| | - Xiaozhong Lan
- Medicinal Plants Joint Research and Development Centre, Tibet Agriculture and Animal Husbandry College-Southwest University, Nyingchi, 860000 Tibet China
- Food Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, 860000 Tibet China
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