Results 11 to 20 of about 214,794 (176)

Analysis of dissolved oxygen distribution effects on nitrogen removal efficiency in oxidation ditch systems [PDF]

open access: yesScientific Reports
Optimizing dissolved oxygen (DO) distribution is critical for enhancing nitrogen removal in oxidation ditch systems, yet requires robust statistical validation.
Rania Nayif Daibes   +1 more
doaj   +2 more sources

Touch-Point Detection Using Thermal Video With Applications to Prevent Indirect Virus Spread

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2021
Viral and bacterial pathogens can be transmitted through direct contact with contaminated surfaces. Efficient decontamination of contaminated surfaces could lead to decreased disease transmission, if optimized methods for detecting contaminated surfaces ...
Guangshen Ma   +5 more
doaj   +1 more source

Evaluation of water consumption in rapid sand filters backwashed under varied physical conditions

open access: yesAlexandria Engineering Journal, 2023
Egypt suffers from water scarcity. In water treatment plants using sand filters, a significant amount of treated water is consumed, estimated at 10%–15% of the filtered water during backwashing.
Sara Beshr   +3 more
doaj   +1 more source

Trihalomethane evaluation in chlorinated treated drinking water sources in Saudi Arabia (Aseer region a case study)

open access: yesAlexandria Engineering Journal, 2022
This study was conducted to assess trihalomethane levels in Aseer region's main chlorinated treated drinking water sources over four consecutive seasons (Summer, Autumn, Winter, and Spring) and to gain a better understanding of trihalomethane occurrence,
Ahmed M. Mujathel   +3 more
doaj   +1 more source

Impact of microalgae layer thickness on the treatment performance of drain water

open access: yesScientific Reports, 2023
The water shortage problem in Egypt has promoted the exploration of new water resources, including the use of treated agricultural drainage water. This study aims to develop an efficient and cost-effective method for the in-situ treatment of agricultural
Aya Moustafa Moustafa   +3 more
doaj   +1 more source

Bioethical analysis of sanitary engineering: a critical assessment of the profession at the crossroads of environmental and public health ethics

open access: yesEthics in Science and Environmental Politics, 2022
Sanitary engineering is burdened by several challenges that attract bioethical attention: (1) there are many ambiguities regarding the definition of the profession; (2) its methodology seems to be a combination of several approaches from different ...
I Eterović, T Buterin
doaj   +1 more source

Pilot-scale study based on integrated fixed-film activated sludge process for cement industrial wastewater treatment

open access: yesJournal of Degraded and Mining Lands Management, 2021
Due to the lack of freshwater resources in Egypt, cement wastewater treatment was performed to widen the range of the water used in irrigation to face the massive future water scarcity.
Mohamed Nabil Ali   +3 more
doaj   +1 more source

The effect of seasonality in biogas production in full-scale UASB reactors treating sewage in long-term assessment

open access: yesInternational Journal of Sustainable Energy, 2021
Bioenergy is generated from anaerobic reactors treating domestic sewage. Nonetheless, for process optimisation a better understanding on the reactor performance and environmental conditions is required for designing equipment and identifying the optimal ...
Déborah de Freitas Melo   +4 more
doaj   +1 more source

Impact of atmospheric precipitation on the volume of wastewater inflowing to the treatment plant in Nowy Targ [PDF]

open access: yesE3S Web of Conferences, 2020
The study determines the impact of precipitation on the amount of wastewater flowing into the treatment plant in Nowy Targ. The research period covered the years 2016 and 2017, in which the amount of precipitation and average daily wastewater inflows ...
Nowobilska-Majewska Elwira   +2 more
doaj   +1 more source

El relleno sanitario Doña Juana en Bogotá: la producción política de un paisaje tóxico, 1988-2019

open access: yesHistoria Crítica, 2019
Objective/Context: This article explains the formation of a toxic urban landscape around the landfill Doña Juana in Bogotá from 1998 to 2019, as a result of an exchange between sanitary engineers and the circulation of capital under a framework of ...
Frank Molano Camargo
doaj   +1 more source

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