the in?uence of high application rates of polyacrylamide in russia

the in?uence of high application rates of polyacrylamide in russia
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  • What is water soluble anionic polyacrylamide (PAM)?
  • Water soluble anionic polyacrylamide (PAM) is a highly effective erosion preventing and infiltration enhancing polymer, when applied at rates of 1–10 g m −3 in furrow irrigation water. PAM greatly reduces sediment, nutrients, pesticides and coliform bacteria in irrigation runoff.
  • How dangerous is polyacrylamide (PAM)?
  • 4.1.1. Polyacrylamide (PAM) As PAM is extensively used in our daily lives, it is essential to be aware of its potential hazards. Studies have indicated that PAM exhibits low or non-toxicity to humans, primarily due to the large sizes of polymers, which restrict their ability to penetrate the skin.
  • Why is polyacrylamide used in furrow irrigated agriculture?
  • 1. Introduction Polyacrylamide (PAM) has been used in furrow irrigated agriculture for erosion control and increased infiltration ( Lentz et al., 1992, Lentz and Sojka, 1994, Sojka et al., 1998a, Sojka et al., 1998b ).
  • What is a polyacrylamide copolymer?
  • The polyacrylamide copolymer used was a dry granular material having an approximate molecular weight of 12–15 Mg mole −1, with an 18% negative charge density (provided by CYTEC Industries of Wayne, NJ and marketed under the trade name Superfloc 836A).