Bulgaria Solid Particle Type Temperature-Resistant Salt-Resistant Polyacrylamide for Pulverized Coal Wastewater Treatment

BULGARIA is an extremely attractive international center for treatment, recreation and tourism with its numerous resorts, favourable climate, over 1600 hydro mineral springs. In the uniqueness, variety and abundance of hydrothermal, bioclimatic, mud treatment, sea cure, and other health resources, Bulgaria ranks among the first in Europe.

The availability of sewerage networks and wastewater treatment plants are much less developed than water supply systems. ... the Department of Meteorology of the NIMH-BAS conducted a research that projects an increase in annual air temperature in Bulgaria of 1.6°C–3.1°C by 2050 and of 2.9°C–4.1°C by 2080. ... In Bulgaria, coal is the ...

Thomas L. Staples, Pronoy K. Chatterjee, in Textile Science and Technology, 2002 3.2.1 Polyacrylamides. Polyacrylamides are widely used in an uncrosslinked form as thickeners and flocculants in the oil industry, ore recovery, water and sewerage treatment, and a variety of industrial and consumer products [71].Crosslinked polyacrylamides, particularly when partially …

Feb 16, 2019 · Solution polymerization synthesized alt-resistant superabsorbent poly (acrylic acid-acrylamide/fly ash) composites. The mass ratio of acrylic acid (AA) to acrylamide (AM), the concentration of ...

Anionic polyacrylamide is the kind of wastewater treatment chemicals which is water-soluble linear polymer synthesized with high degree of polymerization. Anionic polyacrylamide powder is easily soluble in water and almost insoluble in common organic solvents such as benzene, ether, lipids and acetone. .

Hydrolytic degradation of the polyacrylamide was found to be negligible under conditions used. The adsorption substrate, sodium kaolinite, was prepared by extensive ion exchange treatment. Equilibrium adsorption of the polymers on the sodium kaolinite was made as a function of pol~'rner concentration, solution pH, ionic strength, and temperature.