A step-by-step plan for recycling cigarette butts into bricks - RMIT University
How to Recycle Cigarette Filters: 12 Steps (with Pictures)
Dolphin Quest - Cigarette butts are becoming an even bigger hazard to marine life than plastic straws! Amazingly, they CAN be recycled. Send your discarded cigarettes to Terracycle and they will recycle
Process development for cigarette butts recycling into cellulose pulp - ScienceDirect
Cigarette Filter Recycling System – QINGDAO KINGTECH MACHINERY CO.,LTD