Figure 1 – Copper case study process flow sheet with elementary streams Table 2 – Details on copper concentrator flow sheet Elementary stream Associated emission Plant units applicable Additional information nputs lectricity Scope 2 rushing, grinding, eneficiation, ewatering ocation must be known (more pecific EF) Grinding media Scope 3 Grinding Material must be known (more pecific EF) Mill liner Scope 3 Grinding Material must be known (more pecific EF) eagents Scope 3 eneficiation, ewatering ollector: AERO MX-5141 Xanthate) rother: MIBC (foaming agent) Activator: Butyl potassium anthate H Regulator: Lime (CaO) locculant: Magnafloc polyacrylamide) Outputs opper oncentrate - Dewatering eference flow 4.2.1 Scope 1 emissions: Scope 1 emissions are direct emissions from sources within the system boundary [5]. In this scenario, these could potentially emerge from reagents reacting with the ore; however, it was assumed that no such GHG emissions are produced. This has been confirmed (partially) by 211
RkJQdWJsaXNoZXIy MTM0Mzk2