Waste liquid / Sludge
JFE Kankyo detoxifies various waste liquid and sludge with an environment friendly treatment system.
Overview of waste liquid recycling
Liquid resource recycling system diagram
Configuration of waste liquid recycling system
- 1.Neutralization/insolubilization process
Waste acid, waste alkali, sludge, etc. containing waste acid and waste alkali of highly concentrated waste liquid (Zn, Fe, F, etc.) and hazardous substances (Hg, Cd, Pb, Cr6+, As) are detoxified safely by technically advanced processes.
- 2.Biological treatment
Measures against COD and nitrogen have advanced widely by adopting an aerobic / anaerobic biotreatment process that decomposes nitric acid waste liquid as nitrogen via a technologically advanced eco-friendly technique. The process serves as a reasonable and stable treatment when treatment volumes increase.
- 3.Recovery of ammonia
The ammonia (NH3) contained in waste liquid is recovered. The recovered ammonia water is reused externally.
Introduction of the facility
Biological treatment equipment
NH3 absorption tower