I walk every morning and notice huge amounts of used salt and sand in mounds along the sides of streets. Would it be possible to recycle this with the same machine that sweeps the streets clean each day?

Sidney Richardson
Portland

Copy the Story Link

Only subscribers are eligible to post comments. Please subscribe or login first for digital access. Here’s why.

Use the form below to reset your password. When you've submitted your account email, we will send an email with a reset code.