Abstract—Nowadays the red mud generated from Bayer alumina production process seriously threats the environment and human safety. Therefore, reduction and recycling of red mud is an urgent topic in aluminum industry. In this study, the effects of various parameters, ultrasound power, reaction temperature, leaching time, acid concentration, and solid to liquid ratio on the leaching of Fe, Al, an...

To enhance the codigestion of degradation and improve biomethane production potential, sugarcane bagasse and filter mud were pretreated by sodium hydroxide NaOH 1 N at 100°C for 15, 30, and 45 minutes, respectively. Biomethane generation from 1-liter batch reactor was studied at mesophilic temperature (37 ± 1)°C, solid concentrations of 6%, and five levels of mixing proportion with and without ...

BACKGROUND Low back pain (LBP) is chronic disease without a curative therapy. Alternative and complementary therapies are widely used in the management of this condition. OBJECTIVES To evaluate the efficacy of home application of Dead Sea mud compresses to the back of patients with chronic LBP. METHODS Forty-six consecutive patients suffering from chronic LBP were recruited. All patients we...

Nonlethal predator effects can significantly influence trophic interactions, and in this study we examined how size relationships between predators and prey would influence the ex pression of nonlethal predator effects. We assessed how size and vulnerability to predators would influence nonlethal effects in bivalve species common to oyster reefs. We used 2 size classes of mussels Ischadium recu...

Mud volcanoes are defined as main elements of geological structures and ways through and within which buried argillaceous loose sediments and lithified rocks. The Gharniaregh Tappeh and Naftelijeh mud volcanoes are the most attractive geomorphological phenomena in continental which appear along the eastern coast of the Caspian Sea. The Naftelijeh mud volcano is more active than Gharniaregh–Tapp...

Nanoparticle drilling fluids have the potential to minimize wellbore instability problems. There is a need for development of new generation handle problems especially in lost circulation zones and shale A rheological model needed accurately describe rheology nano base fluid because limited experimental data are currently available using carbon particles water mud Inability current methods addr...

This paper explains about the mud for CDMA and compares different techniques available in the same field and comes out with the most effective approach. A brief explanation about interference cancellation, decorrelator mud and successive interference cancellation have been emphasized

Barite is an important additive material to increase the weight of excavation mud. It has been used extensively in the excavation mud industry. The barite particle sizes used in excavation mud is very important. There is a direct relationship between the amount on the sift of 200 and 325 mesh. By reducing particle sizes of the 200 and 325 mesh, the specific gravity of the barite power increased...