1. Using biological treatment technology, using the decomposing enzymes of microbial anaerobic bacteria to completely remove the chelating agent and complexing agent in the complexing wastewater, making it permanently lose its chelating and complexing ability;
2. The process flow of hydrolysis acidification contact oxidation method is generally used for small and medium-sized engineering projects.
2. Hydrolytic acidification dosing type activated fouling process process, used in large and medium-sized engineering projects.