Figure 3From: Dynamics in leachate chemistry of Cu-Au tailings in response to biochar and woodchip amendments: a column leaching studyDynamic of As in the first 50-ml leachate over six cycles of leaching. EHM, pure tailings; EHM + 20% woodchips, tailings with woodchip; EHM + 10% biochar, tailings with biochar amendment. ADWG stands for Australian Drinking Water Guideline (for more information, please refer to NHMRC website http://www.nhmrc.gov.au/guidelines/publications/eh34).Back to article page