Article
Environmental Sciences
Priscila Ribeiro dos Santos, Luan de Souza Leite, Luiz Antonio Daniel
Summary: This study investigated the performance of BAC filtration as a post-treatment of anaerobic effluent and found that under low filtration rates, it achieved the best organic carbon removal efficiency. The results indicated the capability of BAC systems to efficiently remove organic carbon and turbidity from effluents with high organic content, showing its potential value in wastewater treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Ina Thakur, Anoop Verma, Banu Ormeci
Summary: This study fabricated a low-cost waste-driven visible active iron-titanium oxide composite for treating real municipal wastewater, achieving efficient bacterial inactivation and organic matter degradation. The composite showed excellent stability even after recycling multiple times, demonstrating its lasting durability and potential for field-scale application.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Environmental Sciences
Qi Zhou, Haimeng Sun, Lixia Jia, Weizhong Wu, Jianlong Wang
Summary: This review summarizes the key to improving the water quality of wastewater treatment plants (WWTPs) - simultaneous removal of nitrogen and phosphorus. The composition of secondary effluent from municipal WWTPs is introduced, and three main treatment processes for simultaneous nitrogen and phosphorus removal are summarized. Their performances, mechanisms, influencing factors, and microbial community structures are analyzed. The advanced removal of nitrogen and phosphorus by different technologies is compared and summarized. The challenges and future prospects of simultaneous removal of nitrogen and phosphorus technologies for secondary effluent are proposed.
Article
Biotechnology & Applied Microbiology
S. P. Munasinghe-Arachchige, K. M. Sparks, A. Ahmed, H. M. K. Delanka-Pedige, I. S. A. Abeysiriwardana-Arachchige, T. Schaub, P. J. Trainor, N. Nirmalakhandan
Summary: This study evaluated the formation of nitrogenous byproducts of chlorination in an algal-based wastewater treatment system and found that it is capable of yielding discharge-ready effluent with non-detectable levels of pathogenic bacteria. The optimal chlorine demand of the system to satisfy reuse guidelines was determined as 13.0 mg Cl-2/L, with none of the seven nitrosamines analyzed exceeding 50 ng/L. Non-targeted screening of the untreated effluent revealed negligible levels of amines, which are key precursors of nitrosamines.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Biotechnology & Applied Microbiology
N. Nirmalakhandan, X. Cheng, S. P. Munasinghe-Arachchige, H. M. K. Delanka-Pedige, Y. Zhang
Summary: This study demonstrates the inactivation performance of the A-WWT system in comparison to high-rate algal ponds, activated sludge, and membrane bioreactors, showing that the A-WWT system achieves a greater log reduction per unit energy input/volume of wastewater. Additionally, the concentrations of nitrogenous DBPs in the algal effluent were found to be below 50 ng/L.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Engineering, Chemical
Hai Lu, Xiaoyan Wang, Xueqi Li, Xiaoyu Zhang
Summary: The combined disinfection process of ultraviolet and sodium hypochlorite is more advantageous than the single disinfection method in reducing dosage, shortening reaction time, and resisting water quality changes and microbial light reactivation.
Article
Environmental Sciences
Giada Rossi, Matia Mainardis, Eleonora Aneggi, Linda K. Weavers, Daniele Goi
Summary: The study explores the potential of low-frequency ultrasound coupled with ozone process for disinfecting municipal wastewater while preserving nutrients, aiming at possible reuse in different sectors. The results show promising removal efficiency for various contaminants and high disinfection performance, highlighting the value for agricultural reuse and potential savings on chemical fertilizers. Further studies are needed to evaluate the feasibility of scaling up the system.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Dimitris Zagklis, Fotios K. Katrivesis, Varvara Sygouni, Lamprini Tsarouchi, Konstantina Tsigkou, Michael Kornaros, Christakis A. Paraskeva
Summary: The study shows that reusing treated sewage can significantly reduce fresh water shortages, and using ultrafiltration membranes for sewage treatment is highly effective in producing water that meets regulatory requirements.
Article
Engineering, Environmental
Sharjeel Waqas, Muhammad Roil Bilad, Aqsha Aqsha, Noorfidza Yub Harun, Muhammad Ayoub, Mohd Dzul Hakim Wirzal, Juhana Jaafar, Sri Mulyati, Muthia Elma
Summary: This study compares the biological and hydraulic performances of PVDF and PSF membranes in a rotating biological contactor system. Results show that the steady-state permeabilities of the membranes in MRBC are significantly higher than external filtration, with MRBC consuming only one-fourth of the energy of a traditional membrane bioreactor.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Ting Su, Zhenkai Wang, Kang Zhou, Xinan Chen, Yan Cheng, Guicheng Zhang, Duo Winston Wu, Sheng-Peng Sun
Summary: The study investigated the advanced treatment of EfOM from an industrial park wastewater treatment plant using Fenton oxidation process and BAF. The results showed that the combination of Fenton oxidation process with the BAF reactor offered desirable mineralization efficiencies of EfOM at lower dosages of Fenton's reagents.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Chemical
I Salmeron, G. Rivas, I Oller, A. Martinez-Piernas, A. Aguera, S. Malato
Summary: Electrochemical processes for eliminating organic microcontaminants in urban wastewater treatment plant effluents pre-treated by nanofiltration membranes were compared at pilot plant scale. The presence of high chloride concentrations was found to be a crucial factor affecting the efficiency of the processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Mahyar Mohaghegh Montazeri, Fariborz Taghipour
Summary: The UV-LED is an environmentally friendly alternative to conventional mercury lamps for various applications, including water disinfection. A field study on a high-flow UV-LED drinking water disinfection reactor showed that it maintained good performance even under extreme water conditions. The fouling on the reactor was reversible and could be easily cleaned with household cleaning solutions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Pompilio Vergine, Carlo Salerno, Giovanni Berardi, Alfieri Pollice
Summary: The study found that higher solids retention time (SRT) results in more stable biological processes, which positively affect filtration performance at steady state, even in the presence of organic load variations.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Li Chen, Wanyi Fu, Yu Tan, Xihui Zhang
Summary: This study focuses on organic micropollutants in secondary effluents from municipal wastewater treatment plants, identifying various micropollutants and evaluating an advanced treatment process for their removal. It was found that a combination of ozonation, ceramic membrane filtration, and biological active carbon filtration achieved remarkable removal efficiencies of pharmaceuticals, personal care products, endocrine disrupting chemicals, and odorous compounds in the effluents.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
E. Segredo-Morales, E. Gonzalez, C. Gonzalez-Martin, L. Vera
Summary: This study assessed the effects of operating conditions on a microalgal-bacterial membrane photobioreactor (MPBR) in wastewater treatment. The results showed that selecting longer solids retention times (SRTs) was crucial for optimal community structure and process performance, as well as for minimizing membrane fouling rates.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Geochemistry & Geophysics
Zhuting Wang, Peng Gao, Guangzheng Jiang, Yibo Wang, Shengbiao Hu
Summary: The Xiong'an New Area in China has high heat flow values in the sedimentary layer, but is influenced by factors such as groundwater convection and heat refraction. Analysis shows significant disruptions in heat flow due to groundwater convection and heat refraction, with varying effects on the temperature field as the depth and thickness of high-permeability layers change.
Article
Engineering, Environmental
Peng Gao, Zexin Li, Li Feng, Yongze Liu, Ziwen Du, Liqiu Zhang
Summary: A novel multiwalled carbon nanotubes (MWCNTs)/Bi4O5I2 heterostructure photocatalyst with high reactive species production capacity was designed via interfacial amidation linkage, significantly boosting surface charge transfer efficiency and broadening visible light absorption, resulting in enhanced photocatalytic activity for Tetracycline degradation. A facile regeneration strategy was proposed to address the deactivation issue of bismuth oxyhalide-based photocatalysts, providing a potential approach for designing novel photocatalysts with high efficiency and regeneration possibility.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Ecology
Xiaoxu Sun, Tianle Kong, Fangbai Li, Max M. Haggblom, Max Kolton, Ling Lan, Maggie C. Y. Lau Vetter, Yiran Dong, Peng Gao, Joel E. Kostka, Baoqin Li, Weimin Sun
Summary: This study discovered a novel biogeochemical process, S oxidation coupled to Sb(V) reduction, mediated by Desulfurivibrio bacteria through enzymatic reactions. Desulfurivibrio showed a high relative abundance in Sb mine tailings. The metabolic potential encoded by non-canonical enzymes was found in the Desulfurivibrio genomes retrieved from metal-contaminated sites.
Article
Geosciences, Multidisciplinary
Wenxuan Li, Changqing Yin, Shoufa Lin, Wenjing Li, Peng Gao, Jian Zhang, Jiahui Qian, Hengzhong Qiao
Summary: This study provides detailed information on the petrology, geochemistry, and isotopic composition of granites in the Khondalite Belt in North China, revealing different episodes of magmatism through Paleoproterozoic time. The findings contribute to a better understanding of the geological evolution of the region.
PRECAMBRIAN RESEARCH
(2022)
Article
Environmental Sciences
Yang Wang, Peng Gao, Benhang Li, Ze Yin, Li Feng, Yongze Liu, Ziwen Du, Liqiu Zhang
Summary: In this study, oxygen vacancies (OVs) and nano copper oxides (CuOx) synergistically modified TiO2 photocatalysts were successfully synthesized for the efficient removal of formaldehyde. The results showed that the CuOx/TiO2-x nanocomposites exhibited high photocatalytic activity, reaching a decomposition efficiency of 100% under visible light irradiation. The presence of OVs increased the separation efficiency of charge carriers and acted as active sites, while CuOx enhanced the generation of reactive oxygen species (ROS), leading to the high performance of the photocatalyst. Furthermore, stability tests demonstrated that the CuOx/TiO2-x nanocomposites maintained a stable and high photoactivity even after multiple cycles.
Article
Geochemistry & Geophysics
Chenying Yu, Ting Yang, Jian Zhang, Guochun Zhao, Peter A. Cawood, Changqing Yin, Jiahui Qian, Peng Gao, Chen Zhao
Summary: The Eastern Block of the North China Craton exhibits a greenstone-granite rock association with dome-and-keel structures. Through numerical models, researchers identified different P-T-t paths resulting from crustal-scale sagduction and proposed that these geological features were likely developed under a mantle plume related crustal-scale sagduction geodynamic regime.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Changquan Cheng, Jian Zhang, Jin Liu, Chen Zhao, Changqing Yin, Jiahui Qian, Peng Gao, Xiaoguang Liu, Ying Chen
Summary: The Jiao-Liao-Ji Belt (JLJB) in the North China Craton is a global continent-to-continent collisional orogen that formed around 1.90-1.85 Ga. The tectonic process before the final collision has been a subject of controversy, with some suggesting a back-arc setting during 2.2-2.1 Ga and others proposing continental rifting. The study of coeval mafic rocks in the JLJB reveals that they are sub-alkaline basalts with geochemical and isotopic characteristics similar to enriched mid-ocean ridge basalts. This indicates that the parental magmas of these rocks were derived from partial melting of the depleted asthenospheric mantle with crustal contamination. The presence of A-type and adakitic granites, as well as bimodal volcanic rocks throughout the JLJB, suggests an initial intracontinental rifting that preceded the final collision between the Longgang and Nangrim Blocks around 1.90 Ga.
PRECAMBRIAN RESEARCH
(2022)
Article
Geochemistry & Geophysics
He-Zhi Ma, Yi-Xiang Chen, Kun Zhou, Peng Gao, Yong-Fei Zheng, Xiang-Ping Zha, Xiao-Ping Xia, Zi-Fu Zhao, Fang Huang
Summary: The study of syn-exhumation granites in the Sulu ultrahigh-pressure metamorphic belt in east-central China revealed large-scale partial melting of deeply subducted continental crust in the terminal stage of continental collision during the Triassic period. The geochemical composition and zircon ages of the granites provide insights into their origin and evolution, showing significant differentiation mainly through fractional crystallization during magma evolution.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geosciences, Multidisciplinary
Changquan Cheng, Jin Liu, Jian Zhang, Ying Chen, Changqing Yin, Xiaoguang Liu, Jiahui Qian, Peng Gao, Xiao Wang
Summary: The discovery of ca. 2.7 Ga tonalite-trondhjemite-granodiorite (TTG) in the North China Craton (NCC) provides crucial evidence for understanding Neoarchean crustal evolution. This study presents new constraints on crustal growth and reworking during the Neoarchean through the mapping of ca. 2.7 Ga TTGs, associated ca. 2.6-2.5 Ga high-K granites and high-Mg diorites in the northern Qingyuan region of NCC. Zircon U-Pb dating reveals their formation ages and geochemical analyses suggest different origins for each lithology. Combined with previous studies, it is evident that the northeastern NCC experienced two major periods of crustal growth and reworking around ca. 2.7 Ga and ca. 2.6-2.5 Ga.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Agronomy
Jiaxing Xie, Jiajun Peng, Jiaxin Wang, Binhan Chen, Tingwei Jing, Daozong Sun, Peng Gao, Weixing Wang, Jianqiang Lu, Rundong Yetan, Jun Li
Summary: This paper proposes an improved litchi detection model named YOLOv5-litchi, which enhances the accuracy and performance of litchi detection in complex natural environments. The effectiveness of the improvement is verified through experiments, and the model exhibits the best performance in litchi detection. The model has fast inference speed and is suitable for litchi detection in agriculture.
Article
Biochemistry & Molecular Biology
Ho-Ting-Venice Iu, Pak-Ming Fong, Hin-Cheung-Bill Yam, Peng Gao, Bingpeng Yan, Pok-Man Lai, Victor-Yat-Man Tang, Ka-Ho Li, Chi-Wang Ma, King-Hei-Kenneth Ng, Kong-Hung Sze, Dan Yang, Julian Davies, Richard-Yi-Tsun Kao
Summary: Antibiotic tolerance poses a threat as it allows bacteria to survive antibiotic treatment, leading to persistent and difficult-to-treat infections. This can result in antibiotic treatment failure and impose a burden on the healthcare system. The study identified a small molecule compound, SA-558, that effectively targets antibiotic-tolerant Staphylococcus aureus and reduces their population.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Immunology
Peng Gao, Yuanxin Wei, Suying Hou, Pok-Man Lai, Han Liu, Sherlock Shing Chiu Tai, Victor Yat Man Tang, Pradeep Halebeedu Prakash, Kong-Hung Sze, Jonathan Hon Kwan Chen, Hongzhe Sun, Xuechen Li, Richard Yi-Tsun Kao
Summary: This study identified the first inhibitor of SaeR, a protein involved in regulating virulence factors in Staphylococcus aureus. The inhibitor, named HR3744, showed in vitro and in vivo effectiveness against S. aureus infections. The findings suggest that SaeR could be a potential target for the development of antivirulence drugs.
EMERGING MICROBES & INFECTIONS
(2023)
Article
Chemistry, Multidisciplinary
Bingpeng Yan, Kingchun Fung, Sen Ye, Pok-Man Lai, Yuan Xin Wei, Kong-Hung Sze, Dan Yang, Peng Gao, Richard Yi-Tsun Kao
Summary: Multidrug-resistant bacterial pathogens pose an increasing threat to human health. This study investigates the macrophage response to Staphylococcus aureus infection and identifies specific lipid pathways associated with macrophage function. The findings suggest that exogenous linoleic acid addition may activate lipid modulator-mediated innate immunity as a potential therapy for bacterial infections.
Article
Chemistry, Multidisciplinary
Shaoxiong Zheng, Peng Gao, Weixing Wang, Xiangjun Zou
Summary: An improved dynamic convolutional neural network (DCNN) model, named DCN_Fire, was established based on the traditional DCNN model for accurately identifying the risk of a forest fire. Transfer learning and principal component analysis were used to enhance the model's accuracy and speed. The results showed that the improved DCNN model had excellent recognition speed and accuracy, providing a technical reference for preventing and tackling forest fires.
APPLIED SCIENCES-BASEL
(2022)
Article
Geology
Gao Peng, Tang LiMei, Chen Ling, Tian Yuan, Fang YinXia
Summary: Extensive Early Paleozoic granitic magmatism is studied in Northern Victoria Land, Antarctica. The Inexpressible Island dioritic rocks formed around 500 Ma and show characteristics of high potassic and magmatic arc affinity. The study suggests that these rocks originated from the melting of previously enriched subcontinental lithospheric mantle and underwent metasomatism by subduction component.
ACTA PETROLOGICA SINICA
(2022)
