Improving Oil Sands Processability Using a Temperature
A temperature-sensitive polymer, poly(N-isopropylacrylamide), was tested as a process aid to process a low-grade, high-fines oil sand ore. Two sets of bitumen extraction tests were carried out. In test set I, both oil sands slurry conditioning and bitumen flotation were conducted at 23 掳C. In test set II, the slurry was conditioned at 23 掳C, and, however, the bitumen flotation step was
Environmental Science & Technology 2017, 51, 24, 14417-14425 (Article) ACS AuthorChoice Publication Date (Web) : November 21, 2017
Water-soluble polymers for oil sands tailing treatment: A Review
Water-soluble polymers for oil sands tailing treatment: A Review Abstract Efficient dewatering of oil sands tailings is imperative to reduce the environmental footprint of oil sands operators. Currently there is no mature technology capable of effectively treating oil sands tailings and completely eliminating the use of tailings ponds.
Request PDF | On Jan 2, 2016, Diogenes R. L. Vedoy and others published ChemInform Abstract: Water-Soluble Polymers for Oil Sands Tailing Treatment: A Review | Find, read and cite all the research
Hydraulic Mineral Waste Transport and Storage | Annual
Conventional mineral waste disposal involves pumping dilute concentration suspensions of tailings to large catchment areas, where the solids settle to form a consolidated base while the excess water is evaporated. Unfortunately, this often takes years, if ever, to occur, and the interim period poses a severe threat to the surrounding countryside and water table. A worldwide movement to
Boric acid releases to water may include (but are not limited to) releases from coal-fired power plants (ash ponds and power plant effluents), oil sands extraction and processing (tailing ponds seepage and run-off to surface waters), coal mining (run-off to surface waters and seepage from tailing ponds), oil and gas extraction (leaks and spills
Environment - ASTM International
STP15659S: Water Quality Effects of Tire Chip Fills Placed Above the Groundwater Table - 01 January 1997. STP15660S: Use of Ground Tire Rubber in Reactive Permeable Barriers to Mitigate Btex Compounds - 01 January 1997. STP15638S: Physical Characterization of Water Treatment Plant Residual and Top Soil Mixtures - 01 January 1997
The exception is when water-soluble polymers such as fluid-loss-control agents are used. The major benefits of the use of CaCl 2 are the significant reduction in thickening time achieved and that, regardless of concentration, it always acts as an accelerator. The normal concentration range of use for CaCl 2 is 1 to 4% by weight of cement (BWOC
Mechanisms of Slow Sorption of Organic Chemicals
The use of equilibrium expressions for sorption to natural particles in fate and transport models is often invalid due to slow kinetics. This paper reviews recent research into the causes of slow sorption and desorption rates at the intraparticle level and how this phenomenon relates to contaminant transport, bioavailability, and remediation.
Field experiments were conducted in 1972 at two sites in Clearfield County, Pennsylvania (115). Various latexes, water soluble polymers, clays, and water soluble inorganics were investigated in the laboratory. Field investigations were limited to ammonium hydroxide, sodium carbonate, and Naugatex J-3471 latex.
Flocculant Cationic Anionic Pam Best Price
Flocculant Cationic Anionic Pam Best Price Of Polyacrylamide Polymer , Find Complete Details about Flocculant Cationic Anionic Pam Best Price Of Polyacrylamide Polymer,Cationic Polyacrylamide Flocculant,Cationic Polyacrylamide Price,Polyacrylamide Polymer from Electronics Chemicals Supplier or Manufacturer-.
Polyacrylamide is a type of water-soluble linear high molecular polymer made by free radical polymerization of acrylamide (AM) monomer. It has excellent flocculation property and can reduce the frictional resistance between liquids. There are four types of PAM, including nonionic, anionic, cationic, and more.
- Why are zwitterionic polymers used in water treatment?
- Zwitterionic polymers are widely used in water treatment because of their electrostatic interactions with both positive and negative charges, and their prospective use as adsorbents [24, 63, 151], flocculants , , , and chelating agents [6, 7].
- How can zwitterionic polyacrylamide improve coagulation of industrial wastewater?
- In the treatment of industrial wastewater, the microflocs produced by coagulation are fragile and reversibly formed, and the addition of organic flocculants, such as zwitterionic polyacrylamide, could improve the stability of the flocs to obtain larger, denser, and more stable flocs .
- How can zwitterionic polymers be synthesized?
- Zwitterionic polymers can be synthesized by copying monomers containing cationic and anionic functional groups, as shown in Table 1 [5, 24]. The initial synthesis of polymerizable betaine monomers, followed by copolymerization with other functional monomers is an achievable approach [54, 58].
- Are zwitterionic polymers a problem?
- With the continuous expansion of applications, problems with zwitterionic polymers have been exposed. The current structure of zwitterionic polymers cannot meet the requirements for further development, and more zwitterionic polymers with new-type ideal structures need to be synthesized.
