China University of Geosciences (Wuhan)

Xujian Li

Chunjie Yan

Zhenhua Wang

Luru Jing

Chen Liu

Youfa Zhu

Sen Zhou

Tian Liang

A method for recycling rare earth from a wastewater from rare earth mining or from rare earth smelting, includes the steps of: removing oil from the wastewater to obtain a degreased wastewater; purifying the degreased wastewater to obtain a purified wastewater using a pretreatment system; recycling rare earth from the purified wastewater to obtain a rare earth slurry and a low rare earth wastewater using a rare earth recycling tank; treating the low rare earth wastewater to obtain ammonia gas using an ammonium degassing device; and converting the ammonia gas to obtain aqueous ammonia using an aqueous ammonium preparing system.

System and method for recycling rare earth and ammonia nitrogen from rare earth wastewater

Growing community of inventors

Hubei, China

Xujian Li