Proposed disposal routes of waste sorbent include:
* Landfill;
* Disposal at sea;
* Use in cement manufacture;
* Use in flue gas desulfurisation (FGD).
The lifecycle CO emissions for power generation with CaL and the first three disposal techniques have been calculated. Before disposal of the CaO coal power with CaL has a similar level of lifecycle emissions as amine scrubbing but with the CO-absorbing properties of CaO CaL becomes significantly less polluting. Ocean disposal was found to be the best, but current laws relating to dumping waste at sea prevent this. Next best was use in cement manufacture, reducing emissions over an unabated coal plant by 93%.