| abstract |
Method and apparatus for purifying contaminated water using adsorption filtration. First contacting the contaminated water with a pH adjusting drug to provide a pH adjusted water of about 3-7, so that at least one cation, anionic and / or nonionic surfactant, organic, inorganic and / or in contaminated water, such as gray water Can remove biological contaminants. The pH adjusting agent is preferably at least one acid, at least one hydrolysis salt, ion exchange medium or combinations thereof. The pH adjusted water is then contacted with one or more active adsorption media comprising silica, zeolite, alumina, activated carbon and the like. The present invention provides a means for selectively removing contaminants from water, thereby making the contaminated water safe for human contact, reuse and / or consumption.n n n none |