نتایج جستجو برای: hydrophobic bentonite

تعداد نتایج: 35881  

Journal: :آب و توسعه پایدار 0

removal of typical contaminants like aromatic amines (e.g. 1-naphthalen amine, diphenyl amine, aniline, 2 and 6-dimethyl pyridine) from water during one-stage process is a method to purify water wherein organic contaminants get extracted from water by bentonite. in this study the effects of ph, stirring time, stirring speed, bentonite mass and bentonite size (mesh) were investigated. also, the ...

Journal: :علوم دامی 0
علیرضا آقاشاهی استادیار ، موسسه تحقیقات علوم دامی کشور مهدی امانی دانش آموخته کارشناسی ارشد پردیس ابوریحان، دانشگاه تهران سید داود شریفی دانشیار، پردیس ابوریحان، دانشگاه تهران احمد افضل زاده دانشیار، پردیس ابوریحان، دانشگاه تهران

this experiment was conducted with broiler chickens to evaluate the effects of high and low swelling bentonite (natural and processed by cuso4) supplementation in diets on performance and carcass traits. a total of 300 day-old aryan broiler’s chicks were used in a completely randomized design with 5 dietary treatments. six pen replicates of 10 chicks were assigned to each of five dietary treatm...

2015
Majid Sedighi Hywel Rhys Thomas Shakil Al Masum Philip James Vardon Duncan Nicholson Alex Chen

Geochemical Modelling of Hydrogen Gas Migration in Unsaturated Bentonite 1 Buffer 2 3 Majid Sedighi, Hywel Rhys Thomas, Shakil Al Masum, Philip James Vardon, 4 Duncan Nicholson, Alex Chen3 5 6 1 Geoenvironmental Research Centre, Cardiff School of Engineering, Cardiff 7 University, Queen’s Buildings, The Parade, Cardiff, CF24 3AA, United 8 Kingdom. *Corresponding author ([email protected]) 9 2 N...

Journal: :Journal of environmental quality 2005
Tom M DeSutter Gary M Pierzynski

Movement of NH(4)(+) below animal waste lagoons is generally a function of the whole-lagoon seepage rate, soil mineralogy, cations in the lagoon liquor, and selectivity for NH(4)(+) on the soil-exchange sites. Binary exchange reactions (Ca(2+)-K(+), Ca(2+)-NH(4)(+), and K(+)-NH(4)(+)) were conducted on two soils from the Great Plains and with combinations of these soils with bentonite or zeolit...

طاهرخانی, فاطمه, طرلانی آذر, منیره, فردمال, جواد, لیلی, مصطفی,

Introduction & Objectives: Aniline is an organic compound widely used in various industries. The release of this compound has had various environmental impacts. Thus, the assessment of efficient and practical methods for the removal of aniline from wastewater of these industries is remarkable. Taguchi model is a model for the analysis of experiments, that predicts both the effects of each facto...

Journal: Geopersia 2013

Bentonite deposits of economic interest are widespread in Tashtab Mountains (Khur), east of Isfahan province, Iran. Several bentonite deposits have been developed in this area as a result of Eocene volcanic alteration. These deposits are classified as Khur bentonite horizon. XRD analyses reveal that alteration products consist of Na-montmorillonite, kaolinite, quartz, calcite, and crystobalite....

Journal: :Fluid dynamics & materials processing 2022

As an ionic soil stabilizer (ISS) can effectively reduce the expansive properties of bentonite and sand improve strength a rapidly thereby reducing likelihood cracks, in present study, these two methods are combined to strengthen bentonite. Different experiments carried out results confirm that proposed strategy be used this material. It is also shown sand-to-bentonite mass ratio has different ...

کوهساری, امیرحسین, محمدتراب, فرهاد ,

Montmorillonite is the main bentonite forming mineral which has special characteristics such as suspension, swelling and colloidal properties. It can absorb water to become larger in volume. Good absorbents are extensively used in industry eithersimply dried or after chemical activation. The chiefconsumer of these clays is the oil refinering industry whichuses them to purify fractionation pr...

2007
C. Gurumoorthy O. Kusakabe

Bentonite-Sand Backfill is a part of Engineered Barrier System (EBS) widely used in a Near Surface Disposal Facility (NSDF) to delay migration of radionuclides from the disposed nuclear waste in a geo environment. Laboratory migration experiments have been conducted to understand the advection/diffusion mechanisms of various radionuclides through backfill and to evaluate their migration rates i...

2016
Shahram Paydar Ali Noorafshan Behnam Dalfardi Shahram Jahanabadi Seyed Mohammad Javad Mortazavi Seyedeh-Saeedeh Yahyavi Hadi Khoshmohabat

Background. This study examines the impact of one-time direct application of haemostatic agent zeolite-bentonite powder to wounded skin on the healing process in rats. Materials and Methods. 24 male Sprague-Dawley rats were randomly allocated into two groups (n = 12): (1) the rats whose wounds were washed only with sterile normal saline (NS-treated) and (2) those treated with zeolite-bentonite ...

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