text: what method is used to spearate a dissolved solid from a liquid>? what method is used to separate a dissolved solid from a liquid? that depends on what the solvent is and what the solute that you are trying to get out is. with substances mixed with water you can dehydrate the solution to obtain the solute. the process of dehydration is one method there are others such as adjusting the ph of the solution. if you have an basic compound in a hydrocarbon liquid then you can lower the ph of the solution and cause the basic compound to form a salt and fall out of the solvent. maybe this will help