I’m putting my opinion and evaluation about water and soil salinity , implementation is non-applicable in my part.
Soil salinity and soil pH , water salinity and pH and TSM are completely different factors in soil environment but influence one anther .
Saline and/or sodic soil is caused by four separate conditions:
- High salt in the parent material and low rainfall (low leaching),
- High rainfall with poor internal drainage,
- High water table that carries salt to the soil surface, and
- High amount of salt being applied through chemicals, manure and poor quality irrigation water.
Ions most commonly associated with soil salinity include the “anions” chloride (Cl-), sulphate (SO4=), carbonate (HCO3-), and sometimes nitrate (NO3-) and the “cations” sodium (Na+), calcium(Ca++), magnesium (Mg++), and sometimes potassium (K+).
Salts of these ions occur in highly variable concentrations and proportions.
The problem with RO is, it needs a lot of water. It divides the input water in two parts, and forces the dissolved solids out from one part in to other. Thus, the output comprises two streams of water – a “clean” stream with low TDS and cleaned of other impurities too. And a “reject” stream that is even more dirty than the input water. Typically, an input of 3 liters will give 1 liter of clean water and 2 liters of “reject
Magnetically-treated water (MTW) is not a new technology ,has been used for many years in abroad and has shown promise in leaching some ions from soil . Magnetised Water applied to salty soil breaks down the salt crystals twice as fast as un-magnetised water allowing the salt to be leached from the soil .
Other traditional and old alternative method is SLOW SAND FILTER method to reduce TSM