For nearly 15 years, Aqueous Solutions has pioneered the use of biochar adsorbent in affordable, decentralized water treatment through extensive laboratory and field research.
Mini-documentary on biochar water treatment in SE Asia by film artist Darcy Muenchrath.
Webinar hosted by the Centre for Affordable Water and Sanitation Technology (CAWST): “Biochar adsorbent for control of synthetic organic contaminants in affordable decentralized water treatment”
“Make your own water filter and never buy drinking water again” ::: A practical guide to setting up a “blue barrel system” by Jon Jandai of Pun Pun Pun Pun Center for Self-Reliance (northern Thailand).
Self-Reliant Water Treatment in 5 minutes and 12 seconds (Thai language, English subtitles) ::: A humorous short video with narration and animation describing the water treatment system at Pun Pun Center for Self-Reliance (northern Thailand).
Making Gasifier Char with Jon Jandai (Thai language, English subtitles) ::: An artistic, short and funny rendition, in Thai language with English subtitles.
Making gasifier biochar for decentralized water treatment ::: An English language video explaining the theory of biomass gasification and step-by-step instructions for fabricating and operating a 200 L (55-gal) drum gasifier.
2000 Liter per day (“PunPun”) Water Treatment System Graphical Manual ::: This handbook is formatted for “borderess” printing on A4 paper for easy and inexpensive binding
300 Liter per day (“blue barrel”) Water Treatment System Graphical Manual ::: This handbook is formatted for “borderless” printing on A4 paper for easy and inexpensive binding.
E-Z Adsorption Char Drum Oven ::: A mostly graphical (minimal text) handbook for constructing a drum pyrolyzer using inexpensive and commonly available materials, and using only simple hand tools – no need for electricity.
Kearns JP, Dickenson E, Knappe DRU, 2020. Enabling organic micropollutant removal from water by full-scale biochar and activated carbon adsorbers using predictions from bench-scale column data. Environmental Engineering Science, Vol. 37, Is. 6.
Kearns JP. 2019. Moving towards transformational WASH. The Lancet – Global Health, Vol. 7, Is. 11, pp. e1493.
Kearns JP, Bentley MJ, Mokashi P, Redmon JH, Levine K. 2019. Underrepresented groups in WaSH – the overlooked role of chemical toxicants in water and health. Journal of Water, Sanitation and Hygiene for Development, Vol. 9, Is. 4.
Kearns JP, Shimabuku KK, Knappe DRU, Summers RS. 2019. High Temperature Co-pyrolysis Thermal Air Activation Enhances Biochar Adsorption of Herbicides from Surface Water. Environmental Engineering Science, Vol. 36, Is. 6.
Kearns JP, Krupp AS, Hartman S, Szogas K, de Boskey M, Harrington JM. 2019. Evaluation of arsenic field test kits as a learning exercise for engineering students in global water and sanitation class. International Journal for Service Learning in Engineering: Humanitarian Engineering and Social Entrepreneurship. Vol. 14, No. 1, pp. 32-46.
Kearns JP, Krupp A, Diek E, Mitchell S, Dossi S, Hartman S. 2018. Lead-lag series and staged parallel operational strategies improve the performance and cost-effectiveness of bonechar for control of fluoride in groundwater. Journal of Water, Sanitation and Hygiene for Development, Vol. 8, Is. 4, pp. 777-784.
Thompson KA, Shimabuku KK, Kearns JP, Knappe DRU, Summers RS. 2016. Environmental comparison of biochar and activated carbon for tertiary wastewater treatment. Environmental Science & Technology, Vol. 50, 11253-11262.
Shimabuku KK, Kearns JP, Martinez J, Mahoney RB, Moreno-Vasquez L, Summers RS. 2016. Biochar sorbents for sulfamethoxazole removal from surface water, stormwater, and wastewater effluent. Water Research, Vol. 96, pp. 236-245.
Kearns J, Knappe DRU, Summers RS. 2015. Feasibility of using traditional kiln charcoals in low-cost water treatment: The role of pyrolysis conditions on 2,4-D herbicide adsorption. Environmental Engineering Science, Vol 32, No. 11, pp. 912-921.
Kearns J, Shimabuku KK, Mahoney RB, Knappe DRU, Summers RS. 2015. Meeting multiple water quality objectives through treatment using locally generated char: improving organoleptic properties and removing synthetic organic contaminants and disinfection by-products. Journal of Water, Sanitation and Hygiene for Development, Vol. 5, Is. 3, pp. 359-372.
Kearns J, Knappe DRU, Summers RS. 2014. Synthetic organic water contaminants in developing communities: an overlooked challenge addressed by adsorption with locally generated char. Journal of Water, Sanitation and Hygiene for Development, Vol. 4, Is. 3, pp. 422-436.
Kearns J, Wellborn LS, Summers RS, Knappe DRU. 2014. 2,4-D adsorption to biochars: Effect of preparation conditions on equilibrium adsorption capacity and comparison with commercial activated carbon literature data. Water Research, Vol. 62, pp. 20-28.
Huggins T, Wang H, Kearns J, Jenkins P, Ren ZJ. 2014. Biochar as a sustainable electrode material for electricity production in microbial fuel cells. Bioresource Technology, Vol. 157, pp. 114-119.