Does Apple offer recycling?
Yes. Apple Trade In lets you recycle any Apple device (including devices from Apple-owned brands) at any Apple Store and on apple.com for free. That includes your batteries and old electronic products as well as free, on-demand packaging recycling for our commercial, education, and institutional customers. When we receive your device, it will be thoroughly inspected to determine if components can be recycled or reused. Whether recycled or reused, all activities relating to the processing of your device will be managed in an environmentally responsible way.
How do I pack my device for recycling?
Devices that contain batteries should be packed in compliance with all applicable laws, regulations, and industry best practices, which typically include the guidelines below:
Discharge the unit to less than 30%.
Do not ship electronics that are disassembled into parts.
Do not ship electronics with swollen or damaged batteries.
For whole units, surround the product with at least 2.5 inches of suitable filler material, such as recycled or reused packaging, before placing inside a corrugated box.
Ship only one device per box.
Above from the Apple Trade In - Apple webpage, and there can be a list of state and local recycling programs listed at the bottom of that webpage depending on your country or refion.
Alternatively, check with your local recycling centers.