Highly selective recovery of phosphate ions using a novel carbonaceous adsorbent synthesized via co-pyrolysis of spent coffee grounds and steel slags: A potential phosphatic fertilizer

Jaegwan Shin, Jinwoo Kwak, Sang-Won Kim, Changgil Son, Yong-Gu Lee, Jong-Gu Kim, Sungjun Bae, Yongeun Park, Sang-Ho Lee, Kangmin Chon