Article
Agricultural Engineering
Fengxing Xie, Myat Thiri, Hui Wang
Summary: Six bacterial strains with simultaneous nitrification-denitrification abilities were isolated from a Beijing sewage treatment plant to improve nitrogen biodegradation efficiency. The strain X49, identified as Pseudomonas mendocina, was found to be the best strain for rapidly degrading high concentrations of inorganic nitrogen. X49 demonstrated efficient removal of ammonia, nitrite, and nitrate under aerobic conditions, achieving high degradation rates.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Xianhe Cao, Binhan Zhao, Yongming Wu, Jun Huang, Hongzhi Wang, Xianyun Sun, Shaojie Li
Summary: A novel strain AS1 of Alcaligenes aquatilis with heterotrophic nitrifying-aerobic denitrifying capacity was isolated. AS1 exhibited efficient ammonia removal under various environmental conditions and showed potential in treating actual piggery wastewater.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Hongfeng Zhou, Lei Cheng, Lisong Xia, Guozhi Deng, Youde Zhang, Xianyang Shi
Summary: A strain of Pseudomonas mendocina SCZ-2 was identified, which showed efficient heterotrophic nitrification and aerobic denitrification capabilities, leading to simultaneous removal of nitrogen and phosphorous. This study deepens our understanding of nitrogen and phosphorous removal and provides more options for practical wastewater treatment.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Shixi Liu, Qi Liu, Han Wu, Wenyu Jiang, Alimu Kahaer, Qian Tang, Zhiquan Hu, Chol Hong, Dongqi Liu
Summary: The novel heterotrophic nitrification-aerobic denitrification bacterium, Pseudomonas sp. N31942, was isolated from a eutrophic lake. The strain showed high ammonia nitrogen removal ability in an oligotrophic environment and its nitrogen removal mechanisms were investigated through transcriptomic and integrative omics analyses. In addition, the bacterium exhibited excellent nitrogen removal ability in real sewage.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agricultural Engineering
Hu Shu, Huiming Sun, Wen Huang, Yang Zhao, Yonghao Ma, Wei Chen, Yuping Sun, Xiaoying Chen, Ping Zhong, Huirong Yang, Xiaopeng Wu, Minwei Huang, Sentai Liao
Summary: Two biosafety strains, Pseudomonas mendocina S16 and Enterobacter cloacae DS'5, isolated from freshwater aquaculture ponds, demonstrated significant abilities in heterotrophic nitrification and aerobic denitrification, with inorganic nitrogen removal efficiencies ranging from 66.59% to 97.97% (S16) and 72.27% to 96.44% (DS'5) within 48 hours. These strains showed great potential for application in aquaculture tail water treatment, with nitrogen removal efficiencies ranging from 79.80% to 98.58% (S16) and 60.80% to 98.40% (DS'5) in immobilization culture systems.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Min Deng, Xiaoli Zhao, Yeerken Senbati, Kang Song, Xugang He
Summary: Pseudomonas sp. DM02 demonstrates efficient nitrogen removal capabilities in aquaculture wastewater treatment, with quick removal of total ammonia nitrogen and nitrates. Optimal environmental conditions and the presence of functional genes play a crucial role in water quality treatment.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Jingxuan Deng, Zhenxing Huang, Wenquan Ruan
Summary: Thiourea is a common compound in wastewater that can inhibit the nitrification process, leading to the collapse of the nitrification system in sewage treatment plants. In this study, the genome assembly of Pseudomonas BT1 was reported, showing its ability to restore ammonia nitrogen removal in the presence of thiourea. The study also identified the molecular mechanisms involved in thiourea metabolism.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Agricultural Engineering
Jinkun Fang, Shaoan Liao, Shanshan Zhang, Li Li, Simin Tan, Wenzhuo Li, Anli Wang, Jianmin Ye
Summary: Yeast strain K1 isolated from surface sediment was identified as Barnettozyma californica, showing efficient heterotrophic nitrification and aerobic denitrification abilities. The optimum carbon source for its growth and nitrogen removal activity was sucrose, and it has the potential to remove inorganic nitrogen from wastewater with a C/N ratio of 18.
BIORESOURCE TECHNOLOGY
(2021)
Article
Microbiology
Nan Zhang, Yiting Zhang, Tsing Bohu, Shanghua Wu, Zhihui Bai, Xuliang Zhuang
Summary: The discovery of heterotrophic nitrification-aerobic denitrification (HN-AD) microorganisms has opened up new possibilities for wastewater treatment. In this study, a new HN-AD microorganism, Pannonibacter sp. W30, was isolated and characterized. It showed high efficiency in aerobic inorganic nitrogen transformation and primarily depleted nitrogen through assimilation rather than denitrification. Compared to known Alphaproteobacterial HN-AD microbes, Pannonibacter sp. W30 had the potential to develop a suitable HN-AD technology for treating N-laden wastewater at a full-scale level.
Article
Biotechnology & Applied Microbiology
Ran Wei, Cai Hui, Yiping Zhang, Ligen Xu, Yuhua Zhao, Linna Du, Hui Jiang
Summary: Pseudomonas aeruginosa P-1 exhibited efficient removal of ammonium under Cd2+ and Pb2+ stress, with less inhibition by Pb2+ than by Cd2+. It may respond to heavy metal stress by regulating signal transduction and varying membrane transporters to adapt to environmental changes. These findings have implications for the potential application of these strains in practical wastewater treatment.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2021)
Article
Environmental Sciences
Ran Wei, Cai Hui, Yiping Zhang, Hui Jiang, Yuhua Zhao, Linna Du
Summary: The study revealed that the Pseudomonas aeruginosa (P-1) strain has high removal rates of NH4+ and utilizes both partial and complete nitrification/denitrification pathways. The strain prefers to nitrify NH4+ and only denitrifies NO2- and NO3- when NH4+ is depleted, with N2 as the final gaseous product and minimal NO2- accumulation. Additionally, P-1 can convert various nitrogen compounds under high salinity and high concentrations of heavy metals, making it a potential alternative for inorganic nitrogen removal in practical applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agricultural Engineering
Xin Zhang, Hong -Tao Shi, Xiao-Chi Feng, Chen-Yi Jiang, Wen-Qian Wang, Zi-Jie Xiao, Yu-Jie Xu, Qin-Yao Zeng, Nan-Qi Ren
Summary: A highly efficient aerobic denitrifying microbe, Pseudomonas mendocina HITSZ-D1, was isolated from sewage sludge using a denitrifier enrichment strategy. The microbe showed good growth and nitrate removal performance under a wide range of conditions, with a total nitrogen removal efficiency of >96% at a C/N ratio of 8. Furthermore, it had higher denitrification efficiency and enzyme activities compared to other aerobic denitrifying microbes.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Jingli Wang, Peizhen Chen, Shaopeng Li, Xiangqun Zheng, Chunxue Zhang, Wenjie Zhao
Summary: In this study, a high-efficiency heterotrophic nitrifying-aerobic denitrifying (SND) mutant strain was obtained using ultraviolet-diethyl sulfate compound mutagenesis. The mutant strain showed significantly improved nitrogen removal performance in wastewater treatment, with higher nitrification and denitrification rates compared to wild bacteria. This study provides a successful strategy for improving the nitrogen removal efficiency of SND bacteria.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Xiaofen Hu, Junfeng Su, Amjad Ali, Zhao Wang, Zizhen Wu
Summary: Pseudomonas sp. HXF1, capable of heterotrophic nitrification, aerobic denitrification, and biomineralization, was employed for the simultaneous removal of ammonia nitrogen and fluoride. The strain showed promising results in the removal of NH4+-N and F-. RSM was used to study the best removal conditions, indicating the potential of strain HXF1 in biological denitrification and F- removal in groundwater.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Tengxia He, Mengping Chen, Chenyu Ding, Qifeng Wu, Manman Zhang
Summary: The key denitrifying gene nirB of Pseudomonas taiwanensis J488 was determined through draft genome sequencing. The nitrification of ammonium by the strain was not affected by high concentrations of divalent metal ions, and the efficiency of nitrate removal was significantly enhanced by the addition of various doses of divalent metal ions, promoting bacterial growth in both nitrifying and denitrifying processes. Overall, the results indicate that divalent metal ions do not severely limit the strain's capacity to purify nitrogen-polluted wastewater.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Li-dong Shen, Hong-sheng Wu, Zhi-qiu Gao, Xiang-hua Xu, Tie-xi Chen, Shuai Liu, Hai-xiang Cheng
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2015)
Article
Environmental Sciences
Liang Zhu, Jiaheng Zhou, Meile Lv, Haitian Yu, Hang Zhao, Xiangyang Xu
Article
Environmental Sciences
Liang Zhu, Jiaheng Zhou, Haitian Yu, Xiangyang Xu
ENVIRONMENTAL TECHNOLOGY
(2015)
Article
Engineering, Environmental
Liang Zhu, Jie Jin, Haizhuan Lin, Kaituo Gao, Xiangyang Xu
JOURNAL OF HAZARDOUS MATERIALS
(2015)
Article
Soil Science
Li-dong Shen, Shuai Liu, Zhan-fei He, Xu Lian, Qian Huang, Yun-feng He, Li-ping Lou, Xiang-yang Xu, Ping Zheng, Bao-lan Hu
SOIL BIOLOGY & BIOCHEMISTRY
(2015)
Article
Engineering, Environmental
Liang Zhu, Haitian Yu, Yimei Liu, Hanying Qi, Xiangyang Xu
WATER SCIENCE AND TECHNOLOGY
(2015)
Article
Biotechnology & Applied Microbiology
Li-dong Shen, Shuai Liu, Qian Huang, Xu Lian, Zhan-fei He, Sha Geng, Ren-cun Jin, Yun-feng He, Li-ping Lou, Xiang-yang Xu, Ping Zheng, Bao-lan Hu
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2014)
Article
Biotechnology & Applied Microbiology
Li-dong Shen, Qian Huang, Zhan-fei He, Xu Lian, Shuai Liu, Yun-feng He, Li-ping Lou, Xiang-yang Xu, Ping Zheng, Bao-lan Hu
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2015)
Article
Biotechnology & Applied Microbiology
Shen Li-dong, Zhu Qun, Liu Shuai, Du Ping, Zeng Jiang-ning, Cheng Dong-qing, Xu Xiang-yang, Zheng Ping, Hu Bao-lan
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2014)
Article
Biotechnology & Applied Microbiology
Baolan Hu, Zhanfei He, Sha Geng, Chen Cai, Liping Lou, Ping Zheng, Xinhua Xu
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2014)
Article
Environmental Sciences
Liang Zhu, Kaituo Gao, Jie Jin, Haizhuan Lin, Xiangyang Xu
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2014)
Article
Environmental Sciences
L. Zhu, X. Dai, X. Xu, M. Lv, D. Cao
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2014)
Article
Ecology
Li-dong Shen, Shuai Liu, Qun Zhu, Xiao-yu Li, Chen Cai, Dong-qing Cheng, Li-ping Lou, Xiang-yang Xu, Ping Zheng, Bao-lan Hu
Article
Multidisciplinary Sciences
Bao-lan Hu, Li-dong Shen, Xu Lian, Qun Zhu, Shuai Liu, Qian Huang, Zhan-fei He, Sha Geng, Dong-qing Cheng, Li-ping Lou, Xiang-yang Xu, Ping Zheng, Yun-feng He
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2014)
Meeting Abstract
Chemistry, Multidisciplinary
Liang Zhu, Haizhuan Lin, Kaituo Gao, Xiangyang Xu
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2014)