300 Liter per Day Water Treatment System 300 Liter per Day Water Treatment System. For nearly 15 years, Aqueous Solutions has pioneered the use of biochar adsorbent in affordable, decentralized water treatment through extensive laboratory and field research. Peer reviewed papers and extensive resources collection: https://www.aqsolutions.org/charcoal-biochar-water-treatment/ Read Online / PDF Download Author Aqueous Solutions Publisher Aqueous Solutions Publication date 01/01/16 Practical Solutions Categories Water tanks Rainwater harvesting Drought Copied to clipboard