NEW YORK, Dec. 18, 2017 /PRNewswire/ — Pomerantz LLP is investigating claims on behalf of investors of Aqua Metals, Inc. (“Aqua Metals” or the “Company”) (NASDAQ: AQMS). Such investors are advised to contact Robert S. Willoughby at rswilloughby@pomlaw.com or 888-476-6529, ext…