1
|
Wang Q, Kong J, Liang J, Gamal El-Din M, Zhao P, Xie W, Chen C. Nitrogen removal intensification of aerobic granular sludge through bioaugmentation with "heterotrophic nitrification-aerobic denitrification" consortium during petroleum wastewater treatment. BIORESOURCE TECHNOLOGY 2022; 361:127719. [PMID: 35926555 DOI: 10.1016/j.biortech.2022.127719] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
The bioaugmentation potential of aerobic granular sludge (AGS) was investigated using heterotrophic nitrification-aerobic denitrification (HN-AD) bacterial consortium to improve nitrogen removal during petroleum wastewater treatment. An efficient HN-AD consortium was constructed by mixing Pseudomonas mendocina K0, Brucella sp. K1, Pseudomonas putida T4 and Paracoccus sp. T9. AGS bioaugmented by immobilized HN-AD consortium enhanced nitrogen removal, which showed NH4+-N and TN removal efficiency of 92.4% and 79.8%, respectively. The immobilized consortium addition facilitated larger AGS formation, while granules > 2.0 mm accounted for 16.7% higher than that of control (6.7%). Further, the abundance of napA gene was 4-times higher in the bioaugmented AGS as compared to the control, which demonstrated the long-term stability of HN-AD consortium in the bioreactor. The bioaugmented AGS also showed a higher abundance of xenobiotics biodegradation and nitrogen metabolism. These results highlight that bioaugmentation of AGS technology could be effectively used for enhanced denitrification of petroleum wastewater.
Collapse
Affiliation(s)
- Qinghong Wang
- State Key Laboratory of Petroleum Pollution Control, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Jiawen Kong
- State Key Laboratory of Petroleum Pollution Control, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Jiahao Liang
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Mohamed Gamal El-Din
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Peng Zhao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, China
| | - Wenyu Xie
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Chunmao Chen
- State Key Laboratory of Petroleum Pollution Control, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China.
| |
Collapse
|
2
|
Xia Y, Lu D, Qi Y, Chen H, Zhao Y, Bai Y, Zhu L, Geng N, Xu C, Hua E. Removal of nitrate from agricultural runoff in biochar electrode based biofilm reactor: Performance and enhancement mechanisms. CHEMOSPHERE 2022; 301:134744. [PMID: 35489461 DOI: 10.1016/j.chemosphere.2022.134744] [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: 10/21/2021] [Revised: 04/18/2022] [Accepted: 04/24/2022] [Indexed: 06/14/2023]
Abstract
A biochar electrode based biofilm reactor was developed for advanced removal of nitrate from agricultural runoff. The corn-straw (Zea mays L.) biochar formed at 500 °C has an adsorption capacity of NO3--N up to 2.659 mg g-1. After 45-day start-up phase, the removal efficiency of nitrate reached 93.4% when impressed current was 20 mA, hydraulic retention time was 12 h and chemical oxygen demand/total nitrogen (C/N) ratio was 0.56 without additional carbon source. In comparison, neither electrochemical reduction alone nor microbial denitrification alone could obtain the ideal nitrate removal efficiency. The results implied that bio-electrochemical reduction was the main way of nitrate removal in the biofilm electrode reactor (BER). The denitrification efficiency of 88.9% could still be obtained when C/N = 0. It is because biochar can significantly promote the utilization efficiency of cathode electrons by microorganisms. Thus, biochar is a promising electrode material, which provides a new idea for the optimization of BER.
Collapse
Affiliation(s)
- Yinfeng Xia
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China; College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| | - Debao Lu
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China; College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| | - Yiting Qi
- College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| | - Han Chen
- College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| | - Yufeng Zhao
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China; College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| | - Yu Bai
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China; College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| | - Lifang Zhu
- College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| | - Nan Geng
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China; College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China.
| | - Cundong Xu
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China; College of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| | - Ertian Hua
- Key Laboratory for Technology in Rural Water Management of Zhejiang Province, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China
| |
Collapse
|
3
|
Sun S, Bi X, Yang B, Zhang W, Zhang X, Sun S, Xiao J, Yang Y, Huang Z. Nitrite removal by Acinetobacter sp.TX: a candidate of curbing N 2O emission. ENVIRONMENTAL TECHNOLOGY 2022; 43:2300-2309. [PMID: 33427603 DOI: 10.1080/09593330.2021.1874543] [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: 09/18/2020] [Accepted: 01/01/2021] [Indexed: 06/12/2023]
Abstract
The nitrite removal pathway in Acinetobacter sp. TX5 was explored through the key gene identification and the corresponding enzyme purification, after which the capability to reduce nitrite by immobilized beads was investigated in a fixed-bed reactor. Results revealed that a nosZ gene encoding nitrous oxide reductase (N2OR) exists in TX5 cells, and a N2OR responsible for the reduction of N2O to N2 was purified successfully with a molecular weight of 70.05 kDa, a purification fold of 16.30 and a recovery rate of 5.17%. For TX5 immobilization, the optimal values of polyvinyl alcohol (PVA), spent mushroom substrate (SMS) and Aci (TX5) obtained by response surface methodology (RSM) were 6.32%, 2.92% and 4.57%, respectively. In a fixed-bed reactor packed with immobilized TX5, the removal efficiency (RE) achieved 90% (at 50 h) for NO2--N and 85% (at 96 h) for total nitrogen (TN). On the basis of these results, a nitrite removal pathway in TX5 was proposed. Overall, Acinetobacter sp. TX5 might be a promising candidate for nitrite removal with an ability to suppress N2O accumulation.
Collapse
Affiliation(s)
- Shuqian Sun
- College of Life Science, Fujian Agriculture and Forestry University, Fuhzou, People's Republic of China
| | - Xiaohui Bi
- College of Life Science, Fujian Agriculture and Forestry University, Fuhzou, People's Republic of China
| | - Bin Yang
- College of Life Science, Fujian Agriculture and Forestry University, Fuhzou, People's Republic of China
| | - Weihong Zhang
- College of Life Science, Fujian Agriculture and Forestry University, Fuhzou, People's Republic of China
| | - Xinyu Zhang
- College of Life Science, Fujian Agriculture and Forestry University, Fuhzou, People's Republic of China
| | - Shujing Sun
- College of Life Science, Fujian Agriculture and Forestry University, Fuhzou, People's Republic of China
| | - Jibo Xiao
- College of Life and Environmental Science, Wenzhou University, Wenzhou, People's Republic of China
- Wenzhou Chuangyuan Environment Technology Co. Ltd., Wenzhou, People's Republic of China
| | - Yunlong Yang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, People's Republic of China
| | - Zhida Huang
- Wenzhou Institute of Industry & Science, Wenzhou, People's Republic of China
| |
Collapse
|
4
|
Zhang H, Zhao Z, Chen S, Kang P, Wang Y, Feng J, Jia J, Yan M, Wang Y, Xu L. Paracoccus versutus KS293 adaptation to aerobic and anaerobic denitrification: Insights from nitrogen removal, functional gene abundance, and proteomic profiling analysis. BIORESOURCE TECHNOLOGY 2018; 260:321-328. [PMID: 29631182 DOI: 10.1016/j.biortech.2018.03.123] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 03/23/2018] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
A novel strain KS293 exhibiting excellent aerobic and anaerobic denitrification performance was isolated and identified as Paracoccus versutus KS293. Nitrate nitrogen and total organic carbon could be effectively removed by P. versutus KS293 without nitrite accumulation, whilst 82% and 85% of total nitrogen was converted into gaseous products under aerobic and anaerobic conditions (P > .05), respectively. Based on the ratio of anaerobic to aerobic, relative abundance values were increased 1.41, 1.45, and 2.31 folds for nirS, nosZ, and narG, respectively. A comparison of the two-dimensional gel electrophoresis and principal component analysis showed significant differences in proteomic profiles between aerobic and anaerobic conditions. In total, 78 proteins that displayed fluctuations in relative expression were observed. 10 proteins including nitrate reductase, maintenance of cell membrane (TolA), and RNA polymerase-binding transcription factor (DksA) were differentially expressed. These findings demonstrated that P. versutus KS293 was effective for nitrogen removal under aerobic or anaerobic conditions.
Collapse
Affiliation(s)
- Haihan Zhang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China.
| | - Zhenfang Zhao
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| | - Shengnan Chen
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| | - Pengliang Kang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| | - Yue Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| | - Ji Feng
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| | - Jingyu Jia
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| | - Miaomiao Yan
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| | - Yan Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| | - Lei Xu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China; Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China
| |
Collapse
|
5
|
Yang Y, Lin E, Huang S. Heterotrophic nitrogen removal in Bacillus sp. K5: involvement of a novel hydroxylamine oxidase. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 76:3461-3467. [PMID: 29236024 DOI: 10.2166/wst.2017.510] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An aerobic denitrifying bacterium isolated from a bio-trickling filter treating NOx, Bacillus sp. K5, is able to convert ammonium to nitrite, in which hydroxylamine oxidase (HAO) plays a critical role. In the present study, the performance for simultaneous nitrification and denitrification was investigated with batch experiments and an HAO was purified by an anion-exchange and gel-filtration chromatography from strain K5. The purified HAO's molecular mass was determined by SDS-PAGE and its activity by measuring the change in the concentration of ferricyanide, the electron acceptor. Results showed that as much as 87.8 mg L-1 ammonium-N was removed without nitrite accumulation within 24 hours in the sodium citrate medium at C/N of 15. The HAO isolated from the strain K5 was approximately 71 KDa. With hydroxylamine (NH2OH) as a substrate and potassium ferricyanide as an electron acceptor, the enzyme was capable of oxidizing NH2OH to nitrite in vitro when the pH varied from 7 to 9 and temperature ranged from 25 °C to 40 °C. This is the first time that an HAO has been purified from the Bacillus genus, and the findings revealed that it is distinctive in its molecular mass and enzyme properties.
Collapse
Affiliation(s)
- Yunlong Yang
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ershu Lin
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shaobin Huang
- The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou 510006, China and School of Environment and Energy, South China University of Technology, Guangzhou 510006, China E-mail:
| |
Collapse
|
6
|
Heterotrophic Nitrification-Aerobic Denitrification Performance of Strain Y-12 under Low Temperature and High Concentration of Inorganic Nitrogen Conditions. WATER 2017. [DOI: 10.3390/w9110835] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
7
|
Potential for aerobic NO 2- reduction and corresponding key enzyme genes involved in Alcaligenes faecalis strain NR. Arch Microbiol 2017; 200:147-158. [PMID: 28879417 DOI: 10.1007/s00203-017-1428-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 08/27/2017] [Accepted: 08/31/2017] [Indexed: 10/18/2022]
Abstract
The potential for aerobic NO2- removal by Alcaligenes faecalis strain NR was investigated. 35 mg/L of NO2--N was removed by strain NR under aerobic conditions in the presence of NH4+. 15N-labeling experiment demonstrated that N2O and N2 were possible products during the aerobic nitrite removal process by strain NR. The key enzyme genes of nirK, norB and nosZ, which regulate the aerobic nitrite denitrification process, were successfully amplified from strain NR. The gene sequence analysis indicates that copper-containing nitrite reductase (NIRK) and periplasmic nitrous oxide reductase (NOSZ) were both hydrophilic protein and the transmembrane structures were absent, while nitric oxide reductase large subunit (NORB) was a hydrophobic and transmembrane protein. According to the three-dimensional structure and binding site analysis, the bulky and hydrophobic methionine residue proximity to the nitrite binding sites of NIRK was speculated to be related to the oxygen tolerance of NIRK from strain NR.
Collapse
|
8
|
Yang Y, Xie L, Tao X, Hu K, Huang S. Municipal wastewater treatment by the bioaugmentation of Bacillus sp. K5 within a sequencing batch reactor. PLoS One 2017; 12:e0178837. [PMID: 28594856 PMCID: PMC5464570 DOI: 10.1371/journal.pone.0178837] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 05/19/2017] [Indexed: 12/07/2022] Open
Abstract
Artificial municipal wastewater was treated successfully by the bioaugmentation of Bacillus sp. K5 capable of simultaneous nitrification and denitrification (SND) within a sequencing batch reactor (SBR). During the long-term operation, the bioaugmentation system exhibited an excellent and steady COD and NH4+-N removal without nitrite and nitrate accumulation. The average removal efficiency for COD and NH4+-N achieved to 98% and 95%, respectively. PCR-DGGE, SEM and FISH revealed that the introduced Bacillus sp. K5 should be an important functional strain and exerted a critical influence on the structure of microbial community. qPCR analysis indicated that the strain K5 facilitated aerobic nutrients removal capabilities and SND might be the primary pathway for the nitrogen removal in the SBR. Overall, the SBR system used in our study should be very promising for the future wastewater treatment.
Collapse
Affiliation(s)
- Yunlong Yang
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, CHINA
| | - Linxiang Xie
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, CHINA
| | - Xin Tao
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, CHINA
| | - Kaihui Hu
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, CHINA
| | - Shaobin Huang
- The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou, Guangdong, CHINA
- School of Environment and Energy, South China University of Technology, Guangzhou Guangdong, CHINA
- * E-mail:
| |
Collapse
|
9
|
Pai TY, Lo HM, Wan TJ, Wang SC, Yang PY, Huang YT. Behaviors of biomass and kinetic parameter for nitrifying species in A²O process at different sludge retention time. Appl Biochem Biotechnol 2014; 174:2875-85. [PMID: 25234396 DOI: 10.1007/s12010-014-1233-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Accepted: 09/10/2014] [Indexed: 11/29/2022]
Abstract
The effect of sludge retention time (SRT) on biomass, kinetic parameters, and stoichiometric parameters of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) in anaerobic/anoxic/oxic (A(2)O) process were explored in this study. The results showed that the growth rate constants were 1.52, 1.22, and 0.85 day(-1), respectively, for AOB, those were 1.59, 1.19, and 0.87 day(-1), respectively, for NOB when SRT was 20, 10, and 5 days. The lysis rate constants of AOB and NOB were 0.14 and 0.09 day(-1), respectively. The yield coefficients were 0.23 and 0.22, respectively, for AOB and NOB. They did not change with SRT obviously. The biomass of AOB was 50.94, 26.35, and 14.68 mg L(-1), respectively, and the biomass of NOB was 116.77, 60.00, and 44.25 mg L(-1), respectively, at SRT of 20, 10, and 5 days. When SRT diminished from 20 to 5 days, the biomass of AOB and NOB diminished by 36.26 and 75.52 mg L(-1), respectively. The removal efficiency of NH4 (+)-N diminished by 68.9 %. The removal efficiency of total nitrogen diminished by 42.9 %.
Collapse
Affiliation(s)
- Tzu-Yi Pai
- Master Program of Environmental Education and Management, Department of Science Education and Application, National Taichung University of Education, Taichung, 40306, Taiwan,
| | | | | | | | | | | |
Collapse
|