S.A. Saad

• PhD in Environmental Engineering
• Consultant at Al Rawabi Dairy Company-Dubai

The African Sahel countries are inherently fragile, environmentally insecure and economically weak. This paper underscores the compounded impacts brought about by the COVID-19 pandemic on resource supply security and, hence, the long-term development of the region. It outlines the Sahel-specific COVID-19 scenario by firstly highlighting the underly...

Despite the long-lasting and widespread drought in the Sahel, flood events did punctuate in the past. The concern about floods remains dwarf on the international research and policy agenda compared to droughts. In this paper, we elucidate that floods in the Sahel are now becoming more frequent, widespread, and more devastating. We analyzed gridded...

The integrative approach of water, energy, and food nexus (WEF nexus) is now widely accepted to offer better planning, development, and operation of these resources. This study presents a first attempt towards understanding the WEF nexus of urban environments in the Nile River Basin under conditions of hydrological droughts and fluvial floods. A ca...

Dairy farms typically generate different types of wastes including cow manure, feed waste, sludge, and returned dairy products. In most developing countries, the conventional handling practices of these wastes constitute land application and stockpiling. This study presents a comparative life cycle assessment to evaluate the environmental performan...

This study aimed to evaluate the methane potential of mono- and co-digested dairy farm wastes. The tested substrates included manure from lactating, dry, and young cows, as well as waste milk and feed waste. The highest methane yield was achieved from the lactating cow manure, which produced an average of 412 L of CH 4 kg ⁻¹ volatile solids, follow...

Animal waste generated in farms of developing countries is usually handled through stockpiling and direct application to soil. However, there are negative environmental impacts associated with those practices, mainly contribution to global warming, eutrophication and odor. Anaerobic digestion is one of the well-established technologies that capture...

This study aims at enabling the compilation of key lessons for decision makers and urban planners in rapidly urbanizing cities regarding the identification of representative, chief causal natural and human factors for the increased level of flash flood risk. To achieve this, the impacts of flash flood events of 2013 and 2014 in the capital of Sudan...

This study was carried out in year 2012 to identify the seasonal variation of water quality of Hafirs in North Kordofan State. The study covered four Hafirs, in Shaken Locality (Abu Haraz administrative unit) of 2500 M 3 designing capacity and all used as traditional Hafirs without any treatment facilities: Almamsouca village Hafir, Alayaira villag...

This research had been conducted during year 2012 to review existing data on hospital waste management for some of Khartoum town hospitals and to try to produce appropriate proposals acceptable for waste management and final treatment methods. The overall status of hospital waste management in Khartoum has been assessed through direct visits and de...

Produced water quantities in Sudan oil fields increased largely in recent years as the oil production increased and the old fields matured. Approximately 1.5 million bb/day of water are produced in central region fields. The W/O ratio tends to be 4:1 in most Field Processing Facilities (FPFs). Produced water samples were collected from oil fields a...

Biodegradation studies of hydrocarbons in untreated produced water from Heglig oil field in Sudan were undertaken over a period of time using pure indigenous bacterial cultures. Experiments were performed in 1L glass flasks (Batch cultures) and on a designed laboratory scale aerobic bioreactor consisting of a mixing and an aeration tanks (Continuou...