Fluoride removal technologies mainly include coagulation sedimentation method, chemical precipitation method, electrodialysis method, electrocoagulation method, membrane separation method, ion exchange method, adsorption method, etc. Currently, adsorption method is commonly used for defluoridation in drinking water. The drinking water defluoridation equipment specified in this standard specifically refers to the centralized water supply defluoridation water treatment equipment developed using hydroxyapatite (HAP-F) emulsion and granular adsorption defluoridation technology. The fluoride content in the high-fluoride water produced after being processed by XX-F drinking water defluoridation equipment complies with the requirements of GB5749-2006 "Hygienic Standards for Drinking Water" and is stricter than its relevant regulations.
T/XAI 5-2018 history
2018T/XAI 5-2018 Defluoridation equipment for drinking water