Article
Environmental Sciences
Suelen Angeli, Eliane Adams, Gabriella P. Masceno, Rubia M. Lima, Larisa M. Utzig, Fernando Rodrigues-Silva, Lizie D. T. Prola, Adriane M. Freitas, Marcus Liz
Summary: This study evaluated the degradation efficiency of the commercial pesticide chlorpyrifos by UV/H2O2 and UVC photolysis processes, identifying main degradation by-products and toxic effects through bioassays. Despite high degradation rates, it was noted that bioassays and ecotoxicological effects are important to complement analytical tools for assessing the environmental impact of pesticide degradation processes.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Biochemistry & Molecular Biology
Ximena Jaramillo-Fierro, John Ramon, Eduardo Valarezo
Summary: This study investigates the removal of cyanide species from aqueous solutions using the ZnTiO3/TiO2/H2O2/UVB system. The experimental results show that this system is effective in removing cyanide and has good detoxification effect.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Selcuk Ozdemir, Harun Arslan
Summary: This study provides the first investigation into the role of circular RNAs in acute brain toxicity caused by cypermethrin and chlorpyrifos exposure. It identifies and characterizes several circRNAs involved in the regulation of key signaling pathways, shedding new light on pesticide toxicity research.
Article
Medicine, General & Internal
Yi-Jan Wu, Shu-Sen Chang, Hsien-Yi Chen, Kai-Fan Tsai, Wen-Chin Lee, I-Kuan Wang, Chern-Horng Lee, Chao-Yu Chen, Shou-Hsuan Liu, Cheng-Hao Weng, Wen-Hung Huang, Ching-Wei Hsu, Tzung-Hai Yen
Summary: This study analyzed the clinical symptoms, laboratory tests, and outcomes of patients poisoned with chlorpyrifos, cypermethrin, or their pesticide mixture. It was found that patients with chlorpyrifos and cypermethrin pesticide mixture poisoning had higher rates of acute respiratory failure and salivation, but there were no increases in mortality and length of stay.
INTERNATIONAL JOURNAL OF GENERAL MEDICINE
(2023)
Article
Energy & Fuels
Ling-Wei Wei, Kuen-Song Lin, H. Paul Wang
Summary: This study demonstrates the effective conversion of H2O(l)-to-H2O2(aq) and -H-2(g) using the novel Pd-TiO2-delta/TiO2 photocatalysts through photocatalytic reactions. The results show that this photocatalyst can efficiently generate green energy under solar energy.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Environmental Sciences
Muhammad Zeshan, Ijaz A. Bhatti, Muhammad Mohsin, Munawar Iqbal, Nyla Amjed, Jan Nisar, Najla AlMasoud, Taghrid S. Alomar
Summary: Pesticide contamination has become a crucial environmental issue due to its bio-persistence and bioaccumulation. Nanoscience and nanotechnology have emerged as essential tools for the identification, removal, and mineralization of persistent pesticides using advanced nanomaterials and oxidation processes. The use of nanomaterials, such as TiO2 nanoparticles and nanocomposites, has shown promising results in the photocatalytic mineralization of pesticides.
Article
Engineering, Environmental
Yerin Hong, Yongjoon Cho, Eun Min Go, Pankaj Sharma, Hyeonjin Cho, Byongkyu Lee, Sang Myeon Lee, Sung O. Park, Myohwa Ko, Sang Kyu Kwak, Changduk Yang, Ji-Wook Jang
Summary: The study introduced a hydrophobic organic/inorganic photocatalyst that can utilize visible light and suppress H2O2 decomposition, leading to improved H2O2 production efficiency.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Qiaorong Guo, Dongbin Wei, Chuanfang Zhao, Cuiping Wang, Haijun Ma, Yuguo Du
Summary: This study found that the physical UV-blocker CG-TiO2 could break the organic coatings and promote the chemical reactions of chemical sunscreen BP-1, leading to the formation of highly toxic products during UV irradiation. A total of 24 transformation products were identified, including hydroxyl BPs, hydroxyl dibenzo-p-dioxins, and hydroxyl benzoyl benzoquinones. This study highlights the role of CG-TiO2 in promoting the transformation of chemical sunscreens and generating higher toxicity during UV irradiation, providing scientific data for evaluating the fate and potential risk of sunscreens in the environment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Chan-Geun Song, Jonghan Won, Inhoon Jang, Hyeunseok Choi
Summary: This study developed an anatase TiO2 nanofiber as a high-efficiency catalyst using the electrospinning method and a residual organic matter cleaning method with UV light. This method achieved anatase structure TiO2 nanofibers through heat treatment at 260 degrees C and improved photocatalytic efficiency by removing residual organics with UV light. The photocatalytic efficiency of the fabricated TiO2 nanofibers was approximately six times higher than P25 and heat-treated nanofibers, as confirmed by a methylene blue decomposition experiment under visible light irradiation.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Food Science & Technology
Julia A. Penatzer, Nicole Prince, Julie Miller, Mackenzie Newman, Cayla Lynch, Gerald R. Hobbs, Jonathan W. Boyd
Summary: Chlorpyrifos is a widely-used pesticide in agriculture with certain occupations at higher risk for exposure, which can lead to brain injury. Workers with the highest risk of exposure experience elevated cortisol levels, leading to physiological stress. A mouse model combining corticosterone with chlorpyrifos oxon showed increased neuroinflammation post-exposure.
FOOD AND CHEMICAL TOXICOLOGY
(2021)
Article
Environmental Sciences
Gao-Bo Yu, Jin Tian, Ru-Nan Chen, Han-Lin Liu, Bo-Wen Wen, Jin-Peng Wei, Qiu-sen Chen, Feng-qiong Chen, Yun-yan Sheng, Feng-Jun Yang, Chun-Yuan Ren, Yu-Xian Zhang, Golam Jalal Ahammed
Summary: This study reveals the crucial role of glutathione in pesticide degradation and identifies potential involvement of miRNA in this process in tomato plants.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
M. R. Fernandez San Juan, S. M. L. Lavarias, V. Aparicio, K. E. Larsen, J. E. Colman Lerner, A. Cortelezzi
Summary: After their application in agricultural areas, pesticides contaminate the environment, with potential toxic effects on aquatic organisms living in surface waters. This study focused on detecting and quantifying pesticide residues in the sediment of rural streams in Argentina, a major promoter of transgenic biotechnology in the region. The results showed that concentrations of atrazine, acetochlor, chlorpyrifos, cypermethrin, and 2,4-D in the sediment exceeded national and international quality guidelines, posing a medium to high ecological risk. Therefore, evaluating pesticides in sediment is crucial to assessing the risk to aquatic ecosystems.
Article
Environmental Sciences
Miguel A. Alvarez, M. Ruidiaz-Martinez, Jose Rivera-Utrilla, Manuel Sanchez-Polo, M. Victoria Lopez-Ramon
Summary: This study analyzed the influence of different operational variables on the performance of ethyl-paraben photodegradation catalyzed with an rGO/TiO2 composite. It was found that paraben photodegradation rate increases with longer alkyl chain length. The composite dose and initial EtP concentration significantly affect the degradation efficiency.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Urja Verma, Kashmira Khaire, Isha Desai, Shashikant Sharma, Suresh Balakrishnan
Summary: Exposure to the chlorpyrifos-cypermethrin combination during early development in domestic chicken resulted in heart structural anomalies, likely due to an activation of apoptosis and a disruption of the expression pattern of transcriptional regulators of cardiogenesis. This study sheds light on the harmful effects of this pesticide combination on heart development.
ENVIRONMENTAL TOXICOLOGY
(2021)
Article
Ecology
Andrew P. Hopkins, Jason T. Hoverman
Summary: In this study, the acute toxicity of two widely used fungicides, chlorothalonil and pyraclostrobin, on six North American larval amphibian species was examined. The results showed that pyraclostrobin was approximately 3.5x more toxic than chlorothalonil, with estimated LC50 values ranging from 5-18 μg/L for pyraclostrobin and 15-50 μg/L for chlorothalonil. Salamanders were found to be 3x more sensitive to pyraclostrobin than anuran species and equally as sensitive to chlorothalonil. The estimated LC50 values fell within the expected environmental concentration, indicating potential direct mortality in these species. Additional research is needed to assess the overall risk of these fungicides to amphibians and their aquatic habitats.
Review
Engineering, Environmental
Olufemi Adebayo Johnson, Augustine Chioma Affam
ENVIRONMENTAL ENGINEERING RESEARCH
(2019)
Article
Engineering, Environmental
Ahmad Hanis Omar, Khalida Muda, Zaiton Abdul Majid, Augustine Chioma Affam, Ezerie Henry Ezechi
WATER ENVIRONMENT RESEARCH
(2020)
Article
Environmental Sciences
W. M. Fong, A. C. Affam, W. C. Chung
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2020)
Article
Environmental Sciences
Mohammed Seyam, Jawad S. Alagha, Taher Abunama, Yunes Mogheir, Augustine Chioma Affam, Mohammad Heydari, Khaled Ramlawi
Review
Engineering, Environmental
Ahmad Hussaini Jagaba, Shamsul Rahman Mohamed Kutty, Azmatullah Noor, Abdullahi Haruna Birniwa, Augustine Chioma Affam, Ibrahim Mohammed Lawal, Mubarak Usman Kankia, Abdullahi Usman Kilaco
Summary: This review provides an overview of the performance and applications of biocarriers in SBBR systems, highlighting current challenges and suggesting future research directions for achieving sustainable wastewater treatment solutions.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Energy & Fuels
Ahmad Hussaini Jagaba, Shamsul Rahman Mohamed Kutty, Azmatullah Noor, Augustine Chioma Affam, Ayman A. Ghfar, Abdullahi Kilaco Usman, Ibrahim Mohammed Lawal, Abdullahi Haruna Birniwa, Mubarak Usman Kankia, Haruna Kolawole Afolabi, Usman Bala Soja
Summary: This study assessed the efficacy of an extended aeration activated sludge (EAAS) system using activated carbon as a biosorbent in the treatment of paper packaging biorefinery wastewater. The results showed that the system achieved high removal rates of organic matter and provided a benchmark for wastewater treatment. The biosorbent sourced from natural agro-waste material was proven to be effective and environmentally friendly.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Ahmad Hussaini Jagaba, Shamsul Rahman Mohamed Kutty, Mu. Naushad, Ibrahim Mohammed Lawal, Azmatullah Noor, Augustine Chioma Affam, Abdullahi Haruna Birniwa, Sule Abubakar, Usman Bala Soja, Kunmi Joshua Abioye, Chinna Bathula
Summary: This study investigated the effectiveness of extended aeration system (EAS) and rice straw activated carbon extended aeration system (RAC-EAS) in the treatment of pulp and paper biorefinery effluent (PPBE). The results showed that RAC-EAS, which utilized rice straw as a biosorbent, was effective in reducing the concentrations of ammonia-N and total phosphorus.
ENVIRONMENTAL RESEARCH
(2022)
Article
Multidisciplinary Sciences
Azmatullah Noor, Shamsul Rahman Mohamed Kutty, Lavania Baloo, Augustine Chioma Affam, Ahmad Hussaini Jagaba, Aiban Abdulhakim Saeed Ghaleb, Najib Mohammed Yahya Almahbashi, Tarique Ahmad, Mohammad Sadique Nawab, Abdullahi Haruna Birniwa
Summary: In this study, a submerged attach growth sequencing batch biofilm reactor was used to treat domestic wastewater. By using response surface methodology, the optimal bio-carrier filling ratio and cycle time were determined to achieve higher removal efficiencies of COD, ammonia-nitrogen, and total phosphorus. The results showed that the reactor achieved the best removal efficiency at a 10% bio-carrier filling ratio. This study can contribute to the achievement of Sustainable Development Goal 6.
Article
Engineering, Chemical
Augustine Chioma Affam
DESALINATION AND WATER TREATMENT
(2020)
Article
Engineering, Chemical
Poh Lin Lau, Augustine Chioma Affam
DESALINATION AND WATER TREATMENT
(2020)
Article
Engineering, Chemical
Augustine Chioma Affam
DESALINATION AND WATER TREATMENT
(2020)
Article
Environmental Sciences
A. C. Affam
GLOBAL JOURNAL OF ENVIRONMENTAL SCIENCE AND MANAGEMENT-GJESM
(2020)
Proceedings Paper
Green & Sustainable Science & Technology
Tay Huat Hua, Augustine Chioma Affam, Wong Chee Chung, Wong Chee Swee, Johnson Olufemi Adebayo
6TH INTERNATIONAL CONFERENCE ON ENVIRONMENT (ICENV 2018): EMPOWERING ENVIRONMENT AND SUSTAINABLE ENGINEERING NEXUS THROUGH GREEN TECHNOLOGY
(2019)
Proceedings Paper
Green & Sustainable Science & Technology
Wong Ging King, Lee Man Djun, Augustine Chioma Affam, Wong Chee Chung, Ir. Wong Chee Swee, Johnson Olufemi Adebayo
6TH INTERNATIONAL CONFERENCE ON ENVIRONMENT (ICENV 2018): EMPOWERING ENVIRONMENT AND SUSTAINABLE ENGINEERING NEXUS THROUGH GREEN TECHNOLOGY
(2019)
Article
Engineering, Chemical
Augustine Chioma Affam, Malay Chaudhuri, Shamsul Rahman M. Kutty
BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS
(2018)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
