How much sand? They method for recycling it is different depending upon how much you are talking about. If it's a small amount, you can just screen it, and then rinse it in batches in 5-gallon buckets. If it's a lot, you may want to employ a different system.
I recycle sand for all our various animals that use it. I screen it, then I rinse it multiple times in a bucket until the water runs clear. Then, I dry it on a tarp in the sun. But it can get rather time-consuming. It gets easier once you've done it a few times, and it's mostly waiting, but it is a pain, and each step involves heavy lifting, since sand is not light weight. But it saves a lot of money, and allows you to use the fertilizer in the garden (or dump it in your compost.)