An original equipment manufacturer specialising in road sweepings, gully waste and interceptor waste recycling have been using Pinch Valves from AKO UK within their oily sand/sludge equipment.
Contaminated Oily Sand Solution
Sand washing is ineffective once the particles are below 50 micron. At this point the material becomes an oily sludge. The recovery of oil and cleaning of solids within the sludge now requires a chemical and heat treatment.