Table 5 Potential pollutants from pulp and paper mill waste
From: Pulp and paper mill wastes: utilizations and prospects for high value-added biomaterials
S. N | Main input | Process step | Pollutants |
|---|---|---|---|
1 | Raw material/wood | Wood preparation | Solid wastes and wastewater |
2 | Chemicals/energy | Pulp manufacture | Air emissions and used water |
3 | Process water | Pulp washing/screening | Dissolved material, residual chemicals, and wastewater |
4 | Chemicals/energy | Pulp bleaching | Air emissions, dissolved material, residual chemicals, and wastewater |
5 | Energy | Pulp drying | Air emissions |
6 | Energy/water/chemicals | Paper manufacture | Solid wastes, dissolved material, residual chemicals, and wastewater |