Aquatech wins China deal with zero liquid discharge

Industrial and infrastructure water purification technology firm, Aquatech, has won a contract to provide water treatment with zero liquid discharge (ZLD) for a coal to liquid fuels (CTL) conversion project in China.

The ZLD plant will recycle wastewater at more than 55 Ml/d discharged from a 4 Mt a year CTL plant being developed by Shenhua Ningxia Coal Industry, a division of China’s biggest coal producer, Shenhua Group.

The recycled water will be treated to a high purity and reused in the process facility. Shenhua chose Aquatech to design, engineer, and supply the facility, and to supervise its installation and commissioning.

Aquatech will supply an integrated and automated system that it has developed for the coal conversion market. This system utilizes state-of-the-art AquaEZ technology comprising conventional ultrafiltration reverse osmosis, high efficiency reverse osmosis, unseeded falling film evaporators, followed by crystallizers at the back end to achieve compete ZLD. Aquatech will also supply post-treatment for the recycled water to feed high-purity water to the process.

General manager at Aquatech China, Tom Tseng, said Aquatech was awarded the deal on the basis of its track record of consistent high recoveries from difficult wastewater. “We have previous experience and strong operating installations in projects under similar conditions in China. This project strengthens our position as a leader in ZLD, especially in this part of the world,” he said .