Free radicals and consumption of unbalanced nutritional needs become the main cause degenerative diseases. This study aims to examine manufacture mud cakes substituted with red dragon fruit peel flour (Hylocereus polyrhizus) as a source antioxidants. using completely randomized design 5 treatment formulations flour: wheat is 5%:95%, 10%:90%, 15%:85%, 20%:80%, 25%:75% repetitions. The antioxidan...

The paper considers an axisymmetric problem of filtering suspensions with the formation a cake on filter surface. It is supposed that has elastic–plastic properties. Using mass conservation equation and Darcy’s law, suspension filtration equations at regime are derived, which characterize partial irreversibility characteristics when system unloaded after loading. An also derived describes incre...

The value rheology of drilling mud must be in accordance with the conditions wellbore that do not lead to occurrence problems at time drilling. One efforts improve is by adding Carboxymethyl Cellulose (CMC) which useful for increasing viscosity and binding water. This study aims identify effect on use CMC originating from jackfruit skin rheological properties mud. Jackfruit an underutilized org...

A laboratory scale external anaerobic dynamic membrane bioreactor (AnDMBR) treating high strength wastewater was operated to assess the effect of gas sparging velocity and organic loading rate on removal efficiency and dynamic membrane (DM) filtration characteristics. An increase in gas sparging velocity (GSV) results in a decrease in DM filtration resistance. DM or cake formation was identifie...

Another look at the origin of the fluid mud layer in Lake Apopka, Florida Schelske (2006) questions our conclusion (Bachmann et al. 2005) that a major portion of the fluid mud layer in Lake Apopka is derived from the liquefaction of underlying consolidated sediments. In particular, he questions our interpretation of mean depth measurements that did not decrease in the period 1968 to 1996 when t...

Abstract Treatment of the filter cake layer after drilling is essential for better cement integrity and to retain original reservoir permeability. Compared water-based cake, oil-based mud removal more sophisticated as oil encloses cake’s particles. Therefore, clean-up requires wettability alteration additives (mutual solvents and/or surfactants) permitting acid/filter reaction. With an appropri...

One of the largest industrial spills in Europe occurred in the village of Kolontár (Hungary) on October 4, 2010. The primary objective of the hyperspectral remote sensing mission was to monitor that is necessary in order to estimate the environmental damage, the precise size of the polluted area, the rating of substance concentration in the mud, and the overall condition of the flooded district...

Microbial effects are believed to be a major contributor to membrane fouling in drinking water treatment. Sodium hypochlorite (NaClO) is commonly applied in membrane cleaning, but its potential use as a pretreatment for controlling operational fouling has received little attention. In this study, the effect of adding a continuous low dose of NaClO (1 mg/l as active Cl) in combination with alum,...

Drill-in-fluids create what are known as filter cakes. Filter cakes, in some cases, lead to well abandonment because they prevent hydrocarbons from flowing freely the formation into wellbore. Cake removal is essential avoid damage. A previous study on cake breakers was considered for computational fluid dynamic (CFD) validation. Matlab-CFD and Navier-Stokes equations aimed at predicting validat...

A laboratory-based experimental study was conducted to more completely understand the fundamentals of pressure transients produced by Formation Testing While Drilling (FTWD) equipment. These tools can be run in open hole, positioned at a desired level, and actuated to measure reservoir pressure and flow capacity while in a dynamic drilling environment. Any number of pressure measurements can be...