Results 11 to 20 of about 172,487 (307)

Research on influence of CPAM ionic degree on settling characteristics of high muddied coal slime water

open access: yesMeitan kexue jishu, 2023
In order to study the sedimentation characteristics and action mechanism of cationic polyacrylamide (CPAM) with different ionic degrees on the high muddied coal slime water, the particle size composition and mineral composition of the high muddied coal ...
FAN Youlin   +6 more
doaj   +1 more source

Characterization of Magnetite–Silica Magnetic Fluids by Laser Scattering

open access: yesApplied Sciences, 2020
The paper is concerned with structural, morphological and magnetic properties of magnetite-silica magnetic fluids. The granulometric composition of the magnetic fluids was investigated by scanning and transmission electron microscopy, the phase ...
Elena N. Velichko   +4 more
doaj   +1 more source

Development of spacer fluids and cement slurries compositions for lining of wells at high temperatures

open access: yesЗаписки Горного института, 2020
Article is devoted to creation of new compositions of process solutions for lining of directional wells at high temperatures. Developed compositions provide high durability characteristics of cement stone.
Seyyed Shahab TABATABAEE MORADI   +2 more
doaj   +1 more source

Evaluation of the Physical Stability of Zinc Oxide Suspensions Containing Sodium Poly-(acrylate) and Sodium Dodecylsulfate. [PDF]

open access: yes, 2011
The physical stability of zinc oxide (ZnO) aqueous suspensions has been monitored during two months by different methods of investigation. The suspensions were formulated with ZnO at a fixed concentration (5 wt%), sodium poly-(acrylate), as a viscosifier,
Ahmed-Zaïd, Toudert   +5 more
core   +1 more source

Viscoelastic gels of guar and xanthan gum mixtures provide long-term stabilization of iron micro- and nanoparticles [PDF]

open access: yes, 2012
Iron micro- and nanoparticles used for groundwater remediation and medical applications are prone to fast aggregation and sedimentation. Diluted single biopolymer water solutions of guar gum (GG) or xanthan gum (XG) can stabilize these particles for few ...
A Molfetta Di   +40 more
core   +1 more source

Petroleum products in wastewater and their properties [PDF]

open access: yesBIO Web of Conferences
Water bodies are polluted by oil and petroleum products from various sources. The primary sources are navigation, accidents on ships and coastal areas, industrial wastewater discharges, surface wastewater from settlements, and transportation crossings of
Alekseev Evgeny Valerevich   +1 more
doaj   +1 more source

Using mathematical models to assess sediment stability [PDF]

open access: yesIntegrated Environmental Assessment and Management, 2006
Abstract The application of mathematical models to a sediment stability study is presented, with an emphasis on using models as a component of an effort to develop, refine, and potentially validate a conceptual site model (CSM) for sediment transport at a study site.
openaire   +2 more sources

Hanford contaminated sediment stabilization studies [PDF]

open access: yes, 1977
The major problems with radionuclide waste sites in the 200 Area plateau on the Hanford Reservation is the high degree of toxicity or Hazard Index (HI). Transport Factors (TF) are fortunately low but can increase with time and certainly with episodic events such as explosions or earthquakes.
Bruns, L.E., Key, K.T., Higley, B.A.
openaire   +2 more sources

The Synthesis and Study of Metal Powder Stabilizer Properties in Lubrication Compositions

open access: yesИнженерные технологии и системы, 2019
Introduction. Modern manufacturing technologies of powder materials allow obtaining particles sized 0.1–0.5 μm. Powders with such dispersion have a very high surface energy and, consequently, unique properties. Powders with a given size can be used as an
Valentin V. Safonov   +4 more
doaj   +1 more source

Ultra-Lightweight Cement Slurry to Seal Wellbore of Poor Wellbore Stability

open access: yesEnergies, 2020
The article presents the recipe for ultra-lightweight cement slurry for wellbore sealing. In ordinary lightweight cement slurries, the addition of microspheres and a large amount of water are used to maintain rheological parameters.
Marcin Kremieniewski
doaj   +1 more source

Home - About - Disclaimer - Privacy