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Ce-doped MnOx mixed with polyvinylidene fluoride as an amplified ozone decomposition filter medium in humid conditions

Author(s): Namdari M; Haghighat F; Lee CS;

Ozone is a hazardous air pollutant with significant adverse effects on human health and the environment. With the growing industrial use of ozone, effective ozone removal systems have become essential, especially to protect workers' health. MnOx-based catalysts offer substantial promise for ozone decomposition; however, a major challenge in their appl ...

Article GUID: 39579188


Assessing greenhouse gas emissions in Cuban agricultural soils: Implications for climate change and rice (Oryza sativa L.) production

Author(s): Dar AA; Chen Z; Rodríguez-Rodríguez S; Haghighat F; González-Rosales B;

Assessing the impact of greenhouse gas (GHG) emissions on agricultural soils is crucial for ensuring food production sustainability in the global effort to combat climate change. The present study delves to comprehensively assess GHG emissions in Cuba's agricultural soil and analyze its implications for rice production and climate change because of it ...

Article GUID: 38295640


Refined design of ventilation systems to mitigate infection risk in hospital wards: Perspective from ventilation openings setting

Author(s): Ren C; Wang J; Feng Z; Kim MK; Haghighat F; Cao SJ;

To prevent respiratory infections between patients and medical workers, the transmission risk of airborne pollutants in hospital wards must be mitigated. The ventilation modes, which are regarded as an important strategy to minimize the infection risk, is challenging to systematically design. Studies have considered the effect of ventilation openings (inl ...

Article GUID: 37336354


Intelligent operation, maintenance, and control system for public building: Towards infection risk mitigation and energy efficiency

Author(s): Ren C; Zhu HC; Wang J; Feng Z; Chen G; Haghighat F; Cao SJ;

During the post-COVID-19 era, it is important but challenging to synchronously mitigate the infection risk and optimize the energy savings in public buildings. While, ineffective control of ventilation and purification systems can result in increased energy consumption and cross-contamination. This paper is to develop intelligent operation, maintenance, a ...

Article GUID: 36941886


Comparison of photocatalysis and photolysis of 2,2,4,4-tetrabromodiphenyl ether (BDE-47): Operational parameters, kinetic studies, and data validation using three modern machine learning models

Author(s): Motamedi M; Yerushalmi L; Haghighat F; Chen Z; Zhuang Y;

Polybrominated diphenyl ethers (PBDEs) are halogenated organic compounds that are among the major pollutants of water, and there is an urgent need for their removal. This work compared the application of two techniques, i.e., photocatalytic reaction (PCR) and photolysis (PL), for 2,2,4,4- tetrabromodiphenyl ether (BDE-47) degradation. Although a limited d ...

Article GUID: 36907486


Impact of ionizers on prevention of airborne infection in classroom

Author(s): Ren C; Haghighat F; Feng Z; Kumar P; Cao SJ;

Infectious diseases (e.g., coronavirus disease 2019) dramatically impact human life, economy and social development. Exploring the low-cost and energy-saving approaches is essential in removing infectious virus particles from indoors, such as in classrooms. The application of air purification devices, such as negative ion generators (ionizers), gains popu ...

Article GUID: 36474607


Estimation of Anthropogenic VOCs Emission Based on Volatile Chemical Products: A Canadian Perspective

Author(s): Asif Z; Chen Z; Haghighat F; Nasiri F; Dong J;

Volatile organic compounds (VOCs) in urban areas are of great interest due to their significant role in forming ground-level ozone and adverse public health effects. Emission inventories usually compile the outdoor VOCs emission sources (e.g., traffic and industrial emissions). However, considering emissions from volatile chemical products (e.g., solvents ...

Article GUID: 36416924


Dynamics of SARS-CoV-2 spreading under the influence of environmental factors and strategies to tackle the pandemic: A systematic review

Author(s): Asif Z; Chen Z; Stranges S; Zhao X; Sadiq R; Olea-Popelka F; Peng C; Haghighat F; Yu T;

COVID-19 is deemed as the most critical world health calamity of the 21st century, leading to dramatic life loss. There is a pressing need to understand the multi-stage dynamics, including transmission routes of the virus and environmental conditions due to the possibility of multiple waves of COVID-19 in the future. In this paper, a systematic examinatio ...

Article GUID: 35317188


Recent developments in photocatalysis of industrial effluents ։ A review and example of phenolic compounds degradation

Author(s): Motamedi M; Yerushalmi L; Haghighat F; Chen Z;

Industrial expansion and increased water consumption have created water scarcity concerns. Meanwhile, conventional wastewater purification methods have failed to degrade recalcitrant pollutants efficiently. The present review paper discusses the recent advances and challenges in photocatalytic processes applied for industrial effluents treatment, with res ...

Article GUID: 35074327


Removal of SARS-CoV-2 using UV+Filter in built environment: simulation/evaluation by utilizing validated numerical method

Author(s): Feng Z; Cao SJ; Haghighat F;

Air cleaning is an effective and reliable method in indoor airborne SARS-CoV-2 (Severe Acute Respiratory Syndrome Corona-Virus 2) control, with ability of aerosol removal or disinfection. However, traditional air cleaning systems (e.g. fibrous filter, electrostatic removal system) have some risks in operation process, including re-aerosolization and elect ...

Article GUID: 34367884


Mitigating COVID-19 infection disease transmission in indoor environment using physical barriers

Author(s): Ren C; Xi C; Wang J; Feng Z; Nasiri F; Cao SJ; Haghighat F;

During the normalized phase of COVID-19, droplets or aerosol particles produced by infected personnel are considered as the potential source of infection with uncertain exposure risk. As such, in densely populated open spaces, it is necessary to adopt strategies to mitigate the risk of infection disease transmission while providing sufficient ventilation ...

Article GUID: 34306996


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