The volume of e-waste is growing rapidly. There are many processes that are currently being developed for processingProcessing e-waste to recover plastics, copperCopper, goldGold, silverSilver, PGMs, and other components. In almost all cases efficienciesEfficiency are improving as well as reduction in carbonCarbon footprint. For large scale processingProcessing at central locations, the typical smeltingSmelting and electrorefiningElectrorefining options offer cost effective recoveryRecovery of copperCopper, goldGold, and other metalsMetal. Hydrometallurgical processingProcessing can typically be applied on a smaller and more localized scale. However, it has typically had two main drawbacks preventing adoption for commercial processingProcessing of e-waste on a reasonable scale. (i) It is important to have near complete recoveryRecovery of copperCopper and goldGold/PGMs in order to compete with smeltingSmelting and refiningRefining. This typically requires several different chemistries to be used for the various metalsMetal and flowsheets can become quite complex. (ii) The requirement for oxidants to be used with the different lixiviants which are often costly, dangerous to handle, have significant carbonCarbon footprint or cause water balance problems preventing the overall processes from meeting environmental targets. While goldGold is typically the most valuable component of e-waste it is copperCopper that is generally the highest by weight after the plastics, glass, and steel are removed. Past studies indicates that several key factors for digesting copperCopper such as type of oxidant, temperature, pretreatment, solid to liquid ratio, acid concentration, starting solution conditions, particle size and catalysts such as copperCopper and ironIron were studied for an e-waste metalsMetal concentrateConcentrate to identify optimum and sustainable conditions for copper recoveryCopper recovery and goldGold concentration. It is well known and published that oxidants such as nitric acid and hydrogen peroxideHydrogen peroxide offer rapid digestionDigestion rates however they can have significant environmental impactEnvironmental Impact. Oxidants such as oxygen and ozone offer advantages over air digestionDigestion however require energy to generate in situIn situ. Relative copperCopper digestionDigestion rates for the various oxidants in sulfuric acidSulfuric acid for a given e-waste metalsMetal concentrateConcentrate with <5 mm particle size were 30–60 g/L/h for hydrogen peroxideHydrogen peroxide, 5–10 g/L/h for oxygen, and 1–5 g/L/h for air. Higher temperature and smaller particle size improve rates as does starting with copperCopper in solution. Pretreatment to remove base metalsMetal such as tinTin, ironIron, zincZinc, and aluminumAluminum increases the initial digestionDigestion rate. Using a closed vortexVortex electrowinningElectrowinning cell high purity copperCopper was recovered and acid regenerated. ByproductByproducts oxygen generated in the cell at the anodeAnode can be used for digestionDigestion enhancement. Test results showed 4.4 × faster digestionDigestion rates with byproductByproducts oxygen than air sparging similar to the results using pure oxygen. It is expected that this mechanism may also be utilized in heap leachHeap leach mines to boost leachingLeaching recovery ratesRecovery Rates and increase mineMine production for close to zero additional reagent cost.