Co-digestion has drawn much attention because of its potential to increase biogas production among other benefits. Restaurant grease has high energy content and methane production potential and so is a promising substrate for co-digestion with municipal wastewater sludge. Anaerobic co-digestion of municipal wastewater sludge and restaurant grease was investigated at laboratory-scale under mesop...

The present study discusses an assessment of oil, grease, total petroleum hydrocarbons (TPH) and some heavy metals in surface and ground water within and around the Nigeria National Petroleum Corporation (NNPC) depot, in Apata, Ibadan metropolis in other to assess the pollution status of the water. Samples were collected randomly within and around the depot. Control samples were taken from Awba...

the purposes of this research have been to determine the wastewater quality of a typical railroad repair workshop and to find a way to reduce the concentrations of present contaminants especially oil and grease. the mean concentrations of oil, cod and ss in the wastewater studied were 287.69, 775.85 and 28723, respectively with average daily discharge to be 30-35 m3. three successive treatment ...

The ability to obtain laser based quantitative temperature measurements is particularly important in high pressure environments. In this study, quantitative temperature measurements using Laser Induced Thermal Grating Spectroscopy (LITGS) were employed for a toluene vapor/air jet varying the toluene concentration and pump laser power. In LITGS, the gas temperature at the crossing point of two p...

Two trials that utilized 356 yearling steers were conducted to evaluate the effects of fat sources (3.5% of diet dry matter) in steam-flaked milo finishing diets. Fats differed in fatty acid composition and level of free fatty acids. In Trial 1, soybean oil, tallow and yellow grease were compared to a nonfat control. Feeding fat increased (P less than .05) daily gain, feed efficiency, estimated...

In this work, a chemical modification method was used to prepare silicone grease with high thermal conductivity. We report two preparation methods for conductive fillers, which are hydroxylated boron nitride-grafted carboxylic oil (h-BN-OH@CS) and amino (h-BN-NH2@CS). When h-BN-OH@CS h-BN-NH2@CS were filled 30 wt% in the base grease, conductivity 1.324 W m−1 K−1 0.982 K−1, is 6.04 4.48 times th...

In this study, the influence of temperature on tribological properties unreinforced or glass-fiber reinforced PA66 in contact with carbon steel under boundary lubrication grease was studied when considering dependence mechanical sliding surface and tribochemical reaction to zinc carboxylate additives grease. XPS ToF-SIMS analyses revealed formation a tribofilm sulfide reactive film surface, whi...