Alkaline scale formation restriction in desalination plants by means of antiscalant additives

摘要: Abstract Experimental studies of antiscaling compounds with various functional groups were accomplished. Their influence on alkaline scale crystallization and analysis the results obtained within scope Gibbs-Folmer model are given, taking into account chemical equilibrium in solution. Specific surface energy changes CaCO 3 Mg(OH) 2 nuclei established when dosing antiscalants. The mass transfer processes was investigated cases formation heat exchange surfaces. Mass coefficients their dependence antiscalant doses established. data used to lay out an restriction system for desalination plants horizontal-tube film apparatuses using Caspian Sea water. Results these installation tests water chemistry reported. Theoretical experimental investigations carried till now as well cumulative experience allowed development a number efficient inhibition methods plants. These can be divided two groups. Into first group fall directed supersaturation degree reduction, i.e., acidification, carbonic acid stabilization, etc. second methods, according coefficient decrease due change plant construction thermotechnical parameters.