Depending on the chemical characteristics, some components of TDS can be removed by technologies other than RO, the majority do not result in a net reduction in TDS, but serve to exchange ions. If you can provide a detailed water chemistry analysis I may be able to suggest a few new...
The secondary treated process effluent from a pulp & paper facility can be used as reuse water for irrigation, and this is practiced in many parts of the globe - but to know if this is an appropriate application in your case you need to determine what dissolved contaminants are associated with...
Although you may have measured some nitrate in your toilet sample, the 9.3 grams of urea in a litre of urine will eventually be broken down by bacteria into ammonia, with potential ammonia concentrations well in excess of 1000 mg/L. Bacteria in the...