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Saejung C, Phonaiam S, Kotthale P, Chaiyarat A. Bacterial cellulose as a reinforcement material of alginate beads improves effectiveness and recycling potential of immobilized photosynthetic bacteria for cooking oil waste removal. Carbohydr Polym 2024; 324:121532. [PMID: 37985061 DOI: 10.1016/j.carbpol.2023.121532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/22/2023]
Abstract
The rapid degradation of alginate beads limits the lifespan of immobilized cells. In this study, bacterial cellulose (BC) incorporated in alginate was used to improve the mechanical properties, swelling ratio, and recycling time of the immobilized photosynthetic bacterium Rhodopseudomonas faecalis PA2 for the removal of cooking oil residues. Beads reinforced with 25 and 50% BC showed a higher Young's modulus and compressive strength and a lower swelling ratio than the control treatment (0% BC). The incorporation of 50% BC increased biomass production and oil removal. Field-emission scanning electron microscopy revealed several bacteria-infested internal pores in the reinforced beads, indicating bacterial growth in the presence of BC. Bacterial viability was verified by BC immersion in the bacterial culture broth and by injecting bacteria into the BC matrix. Without BC reinforcement, beads collapsed after reuse in two batches, whereas reinforced beads could be reused for five batches, resulting in an oil removal rate of up to 76.3 %. Our results show that BC can be used as an alginate reinforcing material to improve bead stability and prolong the effective recycling period of immobilized bacteria without negatively affecting bacterial growth or waste oil removal.
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Affiliation(s)
- Chewapat Saejung
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Saitharn Phonaiam
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Prawphan Kotthale
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Anuwat Chaiyarat
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
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2
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Nivetha N, Srivarshine B, Sowmya B, Rajendiran M, Saravanan P, Rajeshkannan R, Rajasimman M, Pham THT, Shanmugam V, Dragoi EN. A comprehensive review on bio-stimulation and bio-enhancement towards remediation of heavy metals degeneration. CHEMOSPHERE 2023; 312:137099. [PMID: 36372332 DOI: 10.1016/j.chemosphere.2022.137099] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/20/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Pollution of heavy metals is one of the risky contaminations that should be managed for all intents and purposes of general well-being concerns. The bioaccumulation of these heavy metals inside our bodies and pecking orders will influence our people in the future. Bioremediation is a bio-mechanism where residing organic entities use and reuse the squanders that are reused to one more form. This could be accomplished by taking advantage of the property of explicit biomolecules or biomass that is equipped for restricting by concentrating the necessary heavy metal particles. The microorganisms can't obliterate the metal yet can change it into a less harmful substance. In this unique circumstance, this review talks about the sources, poisonousness, impacts, and bioremediation strategies of five heavy metals: lead, mercury, arsenic, chromium, and manganese. The concentrations here are the ordinary strategies for bioremediation such as biosorption methods, the use of microbes, green growth, and organisms, etc. This review demonstrates the toxicity of heavy metal contamination degradation by biotransformation through bacterioremediation and biodegradation through mycoremediation.
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Affiliation(s)
- N Nivetha
- School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - B Srivarshine
- School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - B Sowmya
- School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | | | - Panchamoorthy Saravanan
- Department of Petrochemical Technology, UCE - BIT Campus, Anna University, Tiruchirappalli, Tamil Nadu, India
| | - R Rajeshkannan
- Department of Chemical Engineering, Annamalai University, Tamilnadu, India
| | - M Rajasimman
- Department of Chemical Engineering, Annamalai University, Tamilnadu, India
| | - Thi Hong Trang Pham
- Institute for Global Health Innovations, Duy Tan University, Da Nang, 550000, Viet Nam; Faculty of Natural Science, Duy Tan University, Da Nang, 550000, Viet Nam
| | - VenkatKumar Shanmugam
- School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India.
| | - Elena-Niculina Dragoi
- "Cristofor Simionescu" Faculty of Chemical Engineering and Environmental Protection, "Gheorghe Asachi" Technical University, Iasi, Bld Mangeron No 73, 700050, Romania
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Liu S, Li H, Daigger GT, Huang J, Song G. Material biosynthesis, mechanism regulation and resource recycling of biomass and high-value substances from wastewater treatment by photosynthetic bacteria: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 820:153200. [PMID: 35063511 DOI: 10.1016/j.scitotenv.2022.153200] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
The environmental-friendly and economic benefits generated from photosynthetic bacteria (PSB) wastewater treatment have attracted significant attention. This process of resource recovery can produce PSB biomass and high-value substances including single cell protein, Coenzyme Q10, polyhydroxyalkanoates (PHA), 5-aminolevulinic acid, carotenoids, bacteriocin, and polyhydroxy chain alkyl esters, etc. for application in various fields, such as agriculture, medical treatment, chemical, animal husbandry and food industry while treating wastewaters. The main contents of this review are summarized as follows: physiological characteristics, mechanism and application of PSB and potential of single cell protein (SCP) production are described; PSB wastewater treatment technology, including procedures and characteristics, typical cases, influencing factors and bioresource recovery by membrane bioreactor are detailed systematically. The future development of PSB-based resource recovery and wastewater treatment are also provided, particularly concerning PSB-membrane reactor (MBR) process, regulation of biosynthesis mechanism of high-value substances and downstream separation and purification technology. This will provide a promising and new alternative for wastewater treatment recycling.
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Affiliation(s)
- Shuli Liu
- School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450000, China; Zhongzhou Water Holding Co., Ltd., Zhengzhou 450046, China; Civil and Environmental Engineering, University of Michigan, 2350 Hayward St, G.G. Brown Building, Ann Arbor, MI 48109, USA.
| | - Heng Li
- School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450000, China
| | - Glen T Daigger
- Civil and Environmental Engineering, University of Michigan, 2350 Hayward St, G.G. Brown Building, Ann Arbor, MI 48109, USA
| | - Jianping Huang
- School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450000, China.
| | - Gangfu Song
- School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450000, China; Zhongzhou Water Holding Co., Ltd., Zhengzhou 450046, China
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Guo J, Chen C, Chen W, Jiang J, Chen B, Zheng F. Effective immobilization of Bacillus subtilis in chitosan-sodium alginate composite carrier for ammonia removal from anaerobically digested swine wastewater. CHEMOSPHERE 2021; 284:131266. [PMID: 34175512 DOI: 10.1016/j.chemosphere.2021.131266] [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: 11/24/2020] [Revised: 05/06/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
To overcome the easy loss of microorganism, the mass production of sludge and the consumption of aeration energy during biological treatment of anaerobically digested swine wastewater, this study used chitosan-sodium alginate composite carrier to prepare immobilized bacteria pellets. The heterotrophic bacteria tolerant to high concentrations of ammonia nitrogen were isolated and the conditions for immobilizing bacteria were optimized. The performance of immobilized bacteria pellets to remove ammonia nitrogen from ADSW was determined and the corresponding mechanism was investigated. Results showed that the isolated bacteria were Bacillus subtilis, and the optimal conditions to prepare the immobilized bacteria pellets by response surface methodology tests were sodium alginate of 0.84% (m/V), chitosan of 0.22% (m/V), embedding time of 32 min and embedding amount of 15% (V/V). In ADSW treatment, at pH 6, 20 g/L of the immobilized bacteria pellets removed 96.5% of ammonia nitrogen. Both adsorption and microbial action contributed to ammonia nitrogen removal, and their contributions were 54.3% and 42.2%, respectively. Compared with the immobilized bacteria pellets using chitosan-sodium alginate as carrier, the one using mono alginate as carrier had a weaker ability to remove ammonia nitrogen, with a removal efficiency of 67.4%. The main mechanism was the formation of polyelectrolyte membrane by the connection between amino groups of chitosan and carboxyl groups of sodium alginate, which stabilized the immobilized bacteria pellets and prolonged their service life. To sum up, the immobilized bacteria pellets using chitosan-sodium alginate as an embedding agent have a promising prospect in ammonia nitrogen removal from wastewater.
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Affiliation(s)
- Junyuan Guo
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan, 610225, China.
| | - Cheng Chen
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan, 610225, China
| | - Wenjing Chen
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan, 610225, China
| | - Jianying Jiang
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan, 610225, China
| | - Bozhi Chen
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan, 610225, China
| | - Fei Zheng
- College of Resources and Environment, Chengdu University of Information Technology, Chengdu, Sichuan, 610225, China
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5
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Application of real treated wastewater to starch production by microalgae: Potential effect of nutrients and microbial contamination. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.107973] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Chen J, Wei J, Ma C, Yang Z, Li Z, Yang X, Wang M, Zhang H, Hu J, Zhang C. Photosynthetic bacteria-based technology is a potential alternative to meet sustainable wastewater treatment requirement? ENVIRONMENT INTERNATIONAL 2020; 137:105417. [PMID: 32120141 DOI: 10.1016/j.envint.2019.105417] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/22/2019] [Accepted: 12/11/2019] [Indexed: 05/23/2023]
Abstract
A paradigm shift is underway in wastewater treatment from pollution removal to resource or energy recovery. However, conventional activated sludge (CAS) as the core technology of wastewater treatment is confronted with severe challenges on high energy consumption, sludge disposal and inevitable greenhouse gas emission, which are posing a serious impact on the current wastewater industry. It is urgent to find new alternative methods to remedy these defects. Photosynthetic bacteria (PSB) have flexible metabolic modes and high tolerance, which enhance the removal of nutrients, heavy metals and organic contaminants efficiency in different wastewater. The unique phototrophic growth of PSB breaks the restriction of nutrient metabolism in the CAS system. Recent studies have shown that PSB-based technologies can not only achieve the recovery of nutrient and energy, but also improve the degradation efficiency of refractory substances. If the application parameters can be determined, there will be great prospects and economic effects. This review summarizes the research breakthroughs and application promotion of PSB-based wastewater treatment technology in recent years. Comparing discussed the superiority and inferiority from the perspective of application range, performance differences and recovery possibility. Pathways involved in the nutrient substance and the corresponding influencing parameters are also described in detail. The mode of PSB biodegradation processes presented a promising alternative for new wastewater treatment scheme. In the future, more mechanical and model studies, deterministic operating parameters, revolutionary process design is need for large-scale industrial promotion of PSB-based wastewater treatment.
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Affiliation(s)
- Jiaqi Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Jingjing Wei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chi Ma
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zhongzhu Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zihao Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xu Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Mingsheng Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Huaqing Zhang
- Qinglin Environmental Protection Co. Ltd., Ningbo 315000, China
| | - Jiawei Hu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chang Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
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7
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Effect of temperature and use of regenerated surfactants on the removal of oil from water using colloidal gas aphrons. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.115678] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Lu H, Zhang G, Zheng Z, Meng F, Du T, He S. Bio-conversion of photosynthetic bacteria from non-toxic wastewater to realize wastewater treatment and bioresource recovery: A review. BIORESOURCE TECHNOLOGY 2019; 278:383-399. [PMID: 30683503 DOI: 10.1016/j.biortech.2019.01.070] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/12/2019] [Accepted: 01/18/2019] [Indexed: 06/09/2023]
Abstract
Generating or recycling water and resources from wastewater other than just treating wastewater is one of the most popular trends worldwide. Photosynthetic bacteria (PSB) wastewater treatment and resource recovery technology is one of the most potential methods. PSBs are non-toxic and contain lots of value-added products that can be utilized in the agricultural and food industries. They are effective to degrade pollutants and synthesize useful biomass, thus realizing wastewater treatment, bioresource production, and eliminating waste sludge. If all the nutrients in wastewaters could be bio-converted by PSB, then pollutant reductions and economic benefits would be achieved. This review paper firstly describes and summarizes this technology, including PSBs classification, metabolism, and the market application. The feasibility, technical procedures, bioreactors, pollutant removal, and bioresource production are also summarized, compared and evaluated. Issues that concern the advantages and industrialization of this technologies at the plant scale are also discussed.
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Affiliation(s)
- Haifeng Lu
- College of Water Resource and Civil Engineering, China Agriculture University, Beijing 100083, China; Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, Beijing 100083, China.
| | - Guangming Zhang
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China.
| | - Ziqiao Zheng
- Yantai Research Institute, China Agriculture University, Yantai 264000, China
| | - Fan Meng
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
| | - Taisheng Du
- College of Water Resource and Civil Engineering, China Agriculture University, Beijing 100083, China; Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, Beijing 100083, China
| | - Shichao He
- College of Water Resource and Civil Engineering, China Agriculture University, Beijing 100083, China; Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, Beijing 100083, China
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9
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Effects of light-oxygen conditions on microbial community of photosynthetic bacteria during treating high-ammonia wastewater. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Meng F, Yang A, Wang H, Zhang G, Li X, Zhang Y, Zou Z. One-step treatment and resource recovery of high-concentration non-toxic organic wastewater by photosynthetic bacteria. BIORESOURCE TECHNOLOGY 2018; 251:121-127. [PMID: 29274518 DOI: 10.1016/j.biortech.2017.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 11/29/2017] [Accepted: 12/02/2017] [Indexed: 06/07/2023]
Abstract
In order to achieve simple pollutant removal and simultaneous resource recovery in high-COD-non-toxic wastewater treatment, a one-step photosynthetic bacteria (PSB) method was established using batch study experiment. The effluent COD met the national discharge standard, and biomass with rich protein and high-value substances was efficiently produced. It eliminated the demand of post-treatment for conventional PSB treatment. Results showed that Rhodopseudomonas effectively treated brewery wastewater and achieved biomass proliferation. Yeast extract was the best additive for PSB growth and the effluent COD was below 80 mg/L with 400 mg/L yeast extract, meeting the national discharge standard. In addition, the PSB biomass increased by 2.6 times, and the cells were rich in protein, polysaccharide, carotenoids, bacteriochlorophyll and coenzyme Q10, reaching 420.9, 177.6, 2.53, 10.75 and 38.6 mg/g respectively. This work demonstrated the great potential of PSB for high-COD non-toxic wastewater treatment in one-step process.
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Affiliation(s)
- Fan Meng
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguanchun Street, Beijing 100872, China
| | - Anqi Yang
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguanchun Street, Beijing 100872, China
| | - Hangyao Wang
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguanchun Street, Beijing 100872, China
| | - Guangming Zhang
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguanchun Street, Beijing 100872, China.
| | - Xuemei Li
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguanchun Street, Beijing 100872, China
| | - Yi Zhang
- Shandong Public Holdings Tongtai Environment Limited, Jinin 277200, China
| | - Zhiguo Zou
- Shandong Public Holdings Tongtai Environment Limited, Jinin 277200, China
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11
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Yang A, Zhang G, Yang G, Wang H, Meng F, Wang H, Peng M. Denitrification of aging biogas slurry from livestock farm by photosynthetic bacteria. BIORESOURCE TECHNOLOGY 2017; 232:408-411. [PMID: 28242206 DOI: 10.1016/j.biortech.2017.01.073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 01/13/2017] [Accepted: 01/22/2017] [Indexed: 06/06/2023]
Abstract
Huge amount of aging biogas slurry is in urgent need to be treated properly. However, due to high NH3-N concentration and low C/N ratio, this aging biogas slurry is refractory for traditional methods. Its denitrification has become a big challenge. In this paper, photosynthetic bacteria (PSB) were employed to handle this problem. The results showed denitrification of aging biogas slurry by PSB treatment was promising. The highest removal efficiency of NH3-N reached 99.75%, much higher than all other treatments. The removal of NH3-N followed pseudo zero order reaction under dark-aerobic condition. The better inoculation rate for NH3-N removal was 30%; and aerobic condition was more beneficial for NH3-N removal than anaerobic condition because of different metabolic pathways.
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Affiliation(s)
- Anqi Yang
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
| | - Guangming Zhang
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China.
| | - Guang Yang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Hangyao Wang
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
| | - Fan Meng
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
| | - Hongchen Wang
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
| | - Meng Peng
- School of Environment and Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
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12
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Arsenic-Redox Transformation and Plant Growth Promotion by Purple Nonsulfur Bacteria Rhodopseudomonas palustris CS2 and Rhodopseudomonas faecalis SS5. BIOMED RESEARCH INTERNATIONAL 2017; 2017:6250327. [PMID: 28386559 PMCID: PMC5366193 DOI: 10.1155/2017/6250327] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 01/09/2017] [Accepted: 01/19/2017] [Indexed: 11/18/2022]
Abstract
Arsenic (As) is a well-known toxic metalloid found naturally and released by different industries, especially in developing countries. Purple nonsulfur bacteria (PNSB) are known for wastewater treatment and plant growth promoting abilities. As-resistant PNSB were isolated from a fish pond. Based on As-resistance and plant growth promoting attributes, 2 isolates CS2 and SS5 were selected and identified as Rhodopseudomonas palustris and Rhodopseudomonas faecalis, respectively, through 16S rRNA gene sequencing. Maximum As(V) resistance shown by R. faecalis SS5 and R. palustris CS2 was up to 150 and 100 mM, respectively. R. palustris CS2 showed highest As(V) reduction up to 62.9% (6.29 ± 0.24 mM), while R. faecalis SS5 showed maximum As(III) oxidation up to 96% (4.8 ± 0.32 mM), respectively. Highest auxin production was observed by R. palustris CS2 and R. faecalis SS, up to 77.18 ± 3.7 and 76.67 ± 2.8 μg mL-1, respectively. Effects of these PNSB were tested on the growth of Vigna mungo plants. A statistically significant increase in growth was observed in plants inoculated with isolates compared to uninoculated plants, both in presence and in absence of As. R. palustris CS2 treated plants showed 17% (28.1 ± 0.87 cm) increase in shoot length and 21.7% (7.07 ± 0.42 cm) increase in root length, whereas R. faecalis SS5 treated plants showed 12.8% (27.09 ± 0.81 cm) increase in shoot length and 18.8% (6.9 ± 0.34 cm) increase in root length as compared to the control plants. In presence of As, R. palustris CS2 increased shoot length up to 26.3% (21.0 ± 1.1 cm), while root length increased up to 31.3% (5.3 ± 0.4 cm), whereas R. faecalis SS5 inoculated plants showed 25% (20.7 ± 1.4 cm) increase in shoot length and 33.3% (5.4 ± 0.65 cm) increase in root length as compared to the control plants. Bacteria with such diverse abilities could be ideal for plant growth promotion in As-contaminated sites.
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Li X, Peng W, Jia Y, Lu L, Fan W. Bioremediation of lead contaminated soil with Rhodobacter sphaeroides. CHEMOSPHERE 2016; 156:228-235. [PMID: 27179240 DOI: 10.1016/j.chemosphere.2016.04.098] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 04/13/2016] [Accepted: 04/24/2016] [Indexed: 05/17/2023]
Abstract
Bioremediation with microorganisms is a promising technique for heavy metal contaminated soil. Rhodobacter sphaeroides was previously isolated from oil field injection water and used for bioremediation of lead (Pb) contaminated soil in the present study. Based on the investigation of the optimum culturing conditions and the tolerance to Pb, we employed the microorganism for the remediation of Pb contaminated soil simulated at different contamination levels. It was found that the optimum temperature, pH, and inoculum size for R. sphaeroides is 30-35 °C, 7, and 2 × 10(8) mL(-1), respectively. Rhodobacter sphaeroides did not remove the Pb from soil but did change its speciation. During the bioremediation process, more available fractions were transformed to less accessible and inert fractions; in particular, the exchangeable phase was dramatically decreased while the residual phase was substantially increased. A wheat seedling growing experiment showed that Pb phytoavailability was reduced in amended soils. Results inferred that the main mechanism by which R. sphaeroides treats Pb contaminated soil is the precipitation formation of inert compounds, including lead sulfate and lead sulfide. Although the Pb bioremediation efficiency on wheat was not very high (14.78% root and 24.01% in leaf), R. sphaeroides remains a promising alternative for Pb remediation in contaminated soil.
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Affiliation(s)
- Xiaomin Li
- School of Space and Environment, Beihang University, 37 Xueyuan Road, Haidian District, Beijing 100191, PR China
| | - Weihua Peng
- School of Space and Environment, Beihang University, 37 Xueyuan Road, Haidian District, Beijing 100191, PR China
| | - Yingying Jia
- School of Space and Environment, Beihang University, 37 Xueyuan Road, Haidian District, Beijing 100191, PR China
| | - Lin Lu
- School of Space and Environment, Beihang University, 37 Xueyuan Road, Haidian District, Beijing 100191, PR China
| | - Wenhong Fan
- School of Space and Environment, Beihang University, 37 Xueyuan Road, Haidian District, Beijing 100191, PR China.
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14
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Shen T, Jiang C, Wang C, Sun J, Wang X, Li X. A TiO2modified abiotic–biotic process for the degradation of the azo dye methyl orange. RSC Adv 2015. [DOI: 10.1039/c5ra06686g] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Methyl orange was degraded by a TiO2modified abiotic–biotic process involving synergetic mechanisms of adsorption, biodegradation, dye sensitization and LMCT.
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Affiliation(s)
- Tingting Shen
- College of Environmental Science and Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
- College of Environmental Science and Engineering
| | - Chengcheng Jiang
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
| | - Chen Wang
- College of Environmental Science and Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
| | - Jing Sun
- College of Environmental Science and Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
| | - Xikui Wang
- College of Environmental Science and Engineering
- Qilu University of Technology
- Ji’nan
- P. R. China
| | - Xiaoming Li
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
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15
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Wan TJ, Shen SM, Hwang HY, Fang HY. Soybean Oil Biodegradation Using Pseudomonas aeruginosa Attached on Porous Ceramic or Polyurethane. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2012. [DOI: 10.1007/s13369-012-0344-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Shen SM, Wan TJ, Hwang HY. Enhancement of degradation of acrylamide coupled with salad oil by Pseudomonas aeruginosa DS-4 using incubation periods. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2012. [DOI: 10.1016/j.bcab.2011.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Léonard A, Dandoy P, Danloy E, Leroux G, Meunier CF, Rooke JC, Su BL. Whole-cell based hybrid materials for green energy production, environmental remediation and smart cell-therapy. Chem Soc Rev 2011; 40:860-85. [DOI: 10.1039/c0cs00024h] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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18
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Domínguez A, Deive FJ, Angeles Sanromán M, Longo MA. Biodegradation and utilization of waste cooking oil by Yarrowia lipolytica CECT 1240. EUR J LIPID SCI TECH 2010. [DOI: 10.1002/ejlt.201000049] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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19
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Treatment of soybean wastewater by a wild strain Rhodobacter sphaeroides and to produce protein under natural conditions. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/s11783-010-0239-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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21
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Guo L, Ji M, Dong H, Wei Y. Screening and degradation performances of dominant strains in high-salinity landfill leachate. Appl Microbiol Biotechnol 2009; 84:357-64. [DOI: 10.1007/s00253-009-2057-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2009] [Revised: 05/20/2009] [Accepted: 05/21/2009] [Indexed: 10/20/2022]
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22
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Yan S, Subramanian B, Surampalli RY, Narasiah S, Tyagi RD. Isolation, Characterization, and Identification of Bacteria from Activated Sludge and Soluble Microbial Products in Wastewater Treatment Systems. ACTA ACUST UNITED AC 2007. [DOI: 10.1061/(asce)1090-025x(2007)11:4(240)] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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