Qualitative assessment and mapping of corrosion and sedimentation potential of Marvdasht-Kharameh groundwater

Abstract

Determining corrosion and sedimentation potentials is one of the most significant quality aspects of groundwater in different expenses. So, the aim of this study is to appoint corrosion and sedimentation potentials by applying Langelier and Ryznar indexes and their compilers in Marvdasht-Kharameh plain underground water. For this purpose, 49 wells of agriculture well were sampled in five years and compilers of total hardness (TH), total dissolved solubility (TDS), total alkalinity (TA) were measured. Simple kiringing statistical earth method was used for mapping of Rynzar and Langelier indexes and their compilers. The results demonstrated that spherical model is the best fitting for Langelier and Ryznar indexes and their compilers. The effect scope for variable compilers was from 15752 to 32711.local correlation class modified from good to intermediate quality. The average of Langelier index was 0.58 that displayed low sedimentation potential to intermediate. The average of Ryznar index was 6.3 which exhibited low corrosion potential in Marvdasht-Kharameh plain aquifer. Based on mapping plots, in the northern parts, TH and TDS compilers and consequently the Langelier index had the most quantity that it displayed intermediate sedimentation potential. Probably in the northern part, carbonate compositor's effect was evaluated as an increasing factor .By regarding to sedimentation and corrosion potentials, Marvdasht-Kharameh underground water has entirely intermediate quality.