ReviewPublished 7 September 2026Sustainable approaches to lignin recovery from kraft black liquor and its application in environmental remediationAleesha Nabhai · Oliver Charles Wasson · Hongmei Gu · Zhen Cai · Heon E. Park · James Springstead · Qingliu Wu · Jinghao LiFrontiers in Environmental Chemistrydoi 10.3389/fenvc.2026.1895012