Appraisal of water quality and hydro-geochemistry of groundwater quality classification for drinking and irrigation
- Author Triveni M G
- Co-Author Geetha V K
- DOI https://ww
- Country : India
- Subject : Chemistry
Keywords : Channagiri, piper, irrigation, SAR, percentage of Na, magnesium ratio.
Abstract
Declining in the groundwater quality and increasing in the anthropogenic activities at an alarming rate in parts of the Karnataka, especially in Channagiri Taluk, Davangere district. A limited work has been carried out on groundwater quality classification for drinking and irrigation in selected locations. In the current paper highlights the groundwater quality and compare its appropriateness for drinking and irrigation purpose in Channagiri Taluk, Davangere region. Fifteen different ground water samples selecting underground sources were collected and analyzed for almost all chief cations, anions and other hydro-chemical variables. Analytical results of hydro-chemical analysis indicated majority of the samples above the permissible limits of the Indian standards. Various irrigation water quality diagrams and variables such as sodium absorption ratio (SAR), sodium percentage (Na %), Residual sodium carbonate (RSC), Residual Sodium Bicarbonate (RSBC) and Kelley’s ratio revealed that most of the water samples are suitable for irrigation. Langelier Saturation Index (LSI) values suggest that the water is slightly corrosive and non-scale forming in nature. Piper plot indicates the chemical composition of water, mainly controlled by termination and mixing of irrigation return flow. This work thus concludes that groundwater in the Channagiri Taluk, Davangere district is chemically unsuitable for domestic and agricultural uses. It is recommended to carry out a continuous water quality monitoring program and development of effective management practices for utilization of water resources.
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