BALLERUP, Denmark and HOUSTON, July 18, 2024 /PRNewswire/ -- LiqTech International, Inc. (NASDAQ: LIQT), a high-tech filtration technology company that manufactures and markets highly specialized filtration products and systems, today announced it has successfully delivered a commercial pilot unit for the filtration of oil and gas produced water to National Energy Services Reunited Corp. (NESR), an industry-leading provider of integrated energy services in the Middle East and North Africa. The containerized ...