Polyacrylamide (PAM) is a water-soluble polymer, which is insoluble in most organic solvents, has good flocculating properties, can reduce frictional resistance between liquids, Can be divided into non-ionic, anionic, cationic and amphoteric four types.
When PAM is used for flocculation, it is related to the surface properties of the species being flocculated, especially the potential, viscosity, turbidity, and pH of the suspension. The kinetic potential of the particle surface is the reason for particle inhibition. Can reduce the potential and condense.
Granular polyacrylamide flocculant cannot be directly added to sewage. It must be dissolved in water before use, and its aqueous solution are used to treat sewage.The water in which the particulate polymer is dissolved should be clean. Generally tap water is suitable for formulating polymer solutions. Strong ACID, strong alkali, high salt water is not suitable for preparation. Water at room temperature is ok, no necessary to heat. Dissolution is slow when the water temperature is below 5 ° C. Increasing the water temperature will accelerate the dissolution rate, but above 40 ° C will accelerate the degradation of the polymer and affect the use effect. The solution concentration is recommended to be 0.1% -0.3%.
Oil Extraction Polyacrylamide,Papermaking Polyacrylamide,Food Grade Polyacrylamide,Medical Materials Polyacrylamide Yucheng Jinhe Industrial Co.,Ltd , https://www.hncarbonblack.com
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A 4.9-magnitude earthquake in Yangzhou caused the collapse of many houses
A 4.9-magnitude earthquake occurred in Yangzhou. Many houses collapsed. People camped diesel generators | Diesel generator prices / 2012-07-21
Yangzhou July 21st, July 8th, at 8:11 pm, a 4.9-magnitude earthquake occurred at the junction of Gaoyou City and Baoying County, Yangzhou City, Jiangsu Province. At 0:00 on the 21st, there were 30 aftershocks and 3 or more times. It is an earthquake that has been rated by Yangzhou since 1934. At present, no personnel death report, as of 12:00 on the 21st, after preliminary understanding, Baoying Xia set 4 houses of collapsed houses, 13 houses, 21 houses with 10 houses, 155 of the 48 houses were damaged badly, and 122 households of 122 households were generally damaged. There are two injured people. At present, the injured are being treated in the local hospital. The specific loss situation is still being further verified.
According to the National Taiwan Network, Beijing Earthquake Time: July 20, 2012 at 20:11 on the junction of Gaoyou City and Baoying County, Yangzhou City, Jiangsu Province (33.0 N, 119.6 E), with a focal depth of 5 km. After discussing with the Jiangsu Seismological Bureau, the possibility of a larger earthquake in the original earthquake zone is less likely. Please do not panic to the general public!
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