Scholten, V.

facility problem sieved sand depot treatment location treatment facilities waste capacity sand problem sieved network project half-clean sand treatment facility demand solution storage recycling / european journal amount processing relaxation level variable half-clean depot j source treatment facility k sand recycling network demand points storage capacity value inequality scenario processing costs netherland waste disposal problem research sand recycling problem european barro journal heuristic construction constraint processing capacity point i european journal 199-214 decision transportation costs formulation section process procedure number construction waste management yield capacitated disposal model notice variables yj storage capacities project g capacitated distribution region transportation water two-level order cyclic heuristic variables zk distance store decision maker infrastructure analysis