Is the current arsenic disposal method safe?
Although an arsenic leaching experiment on the wastes generated by the KAF has not yet been studied rigorously by the MIT/ENPHO/CAWST team to date, a number of research studies have been conducted on arsenic leaching for other household-level and community level arsenic removal systems currently implemented in Bangladesh and India, on which the MIT/ENPHO/CAWST team has based its KAF waste disposal recommendation. Since these removal systems are based on similar arsenic removal processes as the KAF, especially the 3-Kolshi system (based on arsenic adsorption on iron chips), the SIDKO system (based on arsenic adsorption on granular ferric hydroxide), and the iron-coated sand and IDE Shalpa (based on arsenic adsorption on iron-coated media), and that none of these arsenic removal system produces waste that is considered to be hazardous to health and the environment according to the USEPA Toxicity Characteristic Leaching Procedure (TCLP), the MIT/ENPHO/CAWST team has assumed that the resul
