Author

A. E. Ghaly

Dalhousie University, Canada

31 articles in our journals

Articles where this person is an author, newest first. People are matched by their name as printed (no ORCID iD is recorded for them), not by name alone; search the name as text to find namesakes too.

Research ArticleOpen accessAN IN-HOUSE COMPUTER-BASED DATA ACQUISITION AND CONTROL SYSTEM FOR ANAEROBIC FERMENTATION PROCESSESE. A. Echiegu, A. E. GhalyA computer-based Data Acquisition and Control System (DACS) capable of monitoring the temperature, pH and gas production as well as maintaining a pre-determined temperature profile and feeding regime in anaerobic reactors was developed and tested. The hardware for the DACS was a series-based system consisting of a host processor which drives three modules-a digital input mode (MODULE 255), an analog … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 3 · 17 Nov 2014 · 6,907 accessesView PDF Cite

Research ArticleOpen accessKINETIC MODELLING OF CONTINUOUS-MIX ANAEROBIC REACTORS OPERATING UNDER DIURNALLY CYCLIC TEMPERATURE ENVIRONMENTE. A. Echiegu, A. E. GhalyA two-culture dynamic model which incorporated the effects of diurnally cyclic temperature was developed and used to predict the dynamic response of anaerobic reactors operated on dairy manure under two diurnally cyclic temperature ranges of 20-40°C and 15-25°C which represent the summer and winter in Nigeria. The digesters were operated at various hydraulic retention times and solid concentrations and some … …American Journal of Biochemistry and Biotechnology, Vol. 10, Issue 2 · 29 Aug 2014 · 7,290 accessesView PDF Cite

Research ArticleOpen accessDevelopment and Evaluation of a Low-Density Biomass Feeding System for Fluidized Bed GasifiersA. E. Ghaly, A. Ergudenler, S. Alsuhaibani, V. V. RamakrishnanFor efficient operation of a biomass gasifier, the biomass material must be fed continuously to the system. A feeding system for chopped straw and rice husk was designed, constructed and evaluated. It consisted of: a frame, a hopper, an auger, two agitators, a drive system and a power unit. Initial testing showed that wheat straw and rice husk, being highly … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 3 · 7 Nov 2013 · 8,039 accessesView PDF Cite

Research ArticleOpen accessNitrification of Urea and Assimilation of Nitrate in Saturated Soils Under Aerobic ConditionsV. V. Ramakrishnan, A. E. GhalyThe aim of this study was to investigate nitrification activity of urea and the assimilation of nitrate in a well aerated soil using perfusion technique with addition of glucose as an energy and carbon source. In this study, urea was rapidly nitrified by the bacteria in the saturated soil but its course of transformation to NO3 was not linear. There … …American Journal of Agricultural and Biological Sciences, Vol. 8, Issue 4 · 6 Nov 2013 · 8,415 accessesView PDF Cite

Research ArticleOpen accessDetermination of the Exergy of Four Wheat StrawsYaning Zhang, A. E. Ghaly, Bingxi LiExergy is a measurement of how far a certain material deviates from a state of equilibrium with the environment. It is a useful tool for improving the efficiency of energy-resource use. The exergy values of four wheat straws (Absolvant, Max, Monopol and Vuka) were determined in this study. The effects of physical and chemical properties (moisture content, ash content, LHV … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 3 · 21 Sep 2013 · 7,493 accessesView PDF Cite

Research ArticleOpen accessDrying Poultry Manure for Pollution Potential Reduction and Production of Organic FertilizerA. E. Ghaly, M. AlhattabDisposal and storage of raw poultry manure has become an environmental problem because of the associated air, water and soil pollution. Poultry manure begins to decompose immediately after excretion giving off ammonia which, in high concentrations, can have adverse effects on the health and productivity of birds as well as the health of the farm workers. Application to land is … …American Journal of Environmental Sciences, Vol. 9, Issue 2 · 13 Mar 2013 · 9,724 accessesView PDF Cite

Research ArticleOpen accessDevelopment and Testing of an Ammonia Removal Unit from the Exhaust Gas of a Manure Drying SystemA. E. Ghaly, K. N. MacDonaldThe storage and handling of animal wastes is one of the main sources of ammonia gas emissions. Ammonia gas has a distinct, unpleasant odor and can become detrimental to the health of humans and animals at high concentrations. Ammonia emissions are of particular concern in manure drying systems, where large losses of nitrogen, in the form of ammonia can cause … …American Journal of Environmental Sciences, Vol. 9, Issue 1 · 16 Feb 2013 · 7,415 accessesView PDF Cite

Research ArticleOpen accessEnumeration of Microbes and Gas Production During Denitrification and Nitrogen Fixation Processes in SoilA. E. Ghaly, K. N. MacDonaldDry plant material contains 2-4% nitrogen, making it an essential nutrient for all plants. The nitrogen cycle regulates the pathways which transform nitrogen from a relatively inert dinitrogen gas to forms of organic nitrogen such as proteins and nucleic acids. Denitrification and nitrogen fixation are the two most important processes that remove and add nitrogen to the soil, respectively. The … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 3 · 11 Sep 2012 · 8,618 accessesView PDF Cite

Research ArticleOpen accessPhysical Properties of Rice Residues as Affected by Variety and Climatic and Cultivation Onditions in Three ContinentsA. E. Ghaly, Bingxi Li, Yaning ZhangRice husk and straw are by-products of rice cultivation and processing industry and can be used as an energy source. Proper understanding of the physical properties of rice residues is necessary for utilizing them in thermochemical conversion processes such as gasification and combustion. The physical properties (moisture content, particle size, bulk density and porosity) of rice husks and straws obtained … …American Journal of Applied Sciences, Vol. 9, Issue 11 · 29 Aug 2012 · 11,964 accessesView PDF Cite

Research ArticleOpen accessMixing Patterns and Residence Time Determination in a Bubbling Fluidized Bed SystemA. E. Ghaly, K. N. MacDonaldFluidized bed gasification can be used to convert the solar energy stored as carboneous compounds in biomass into a carbon neutral fuel with reduced emissions. Canada produces 20.57 million tonnes of wheat straw annually which could be used for green energy production. Wheat straw residue gasification has the capability of replacing 7.5 % (0.62 EJ) of Canada’s annual fossil fuel … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 2 · 17 Aug 2012 · 8,115 accessesView PDF Cite