Proper CFL Disposal
Compact fluorescent light bulbs (CFLs) are highly efficient. They use 75 percent less energy and last significantly longer than standard incandescent bulbs. However, because CFLs contain tiny amounts of mercury (an average of four milligrams per bulb), proper disposal is important.
CFL disposal resources:
CFLs can be recycled at most Ace Hardware, Home Depot, IKEA and Lowe's locations.
Contact the hazardous waste handling facility in your area.
If you can't find an accommodating recycler in your area, it's recommended that you wrap the CFL in two sealed plastic bags before placing the bulb in your normal trash. CFLs should not be incinerated.