Jiangsu Jiuwu runs paper pulp industry’s largest zero-liquid discharge project

The project by Jiangsu Jiuwu Hitech Co., Ltd is located in Japanese Oji Paper Co., Ltd. (OJI PAPER) in China. 40000m3 of papermaking and pulp wastewater go through the system each day.

The main systems include ozone-coupled biofiltering (removing COD), the integrated membrane system of ultrafiltration and reverse osmosis, electrodialysis (EDR) concentration system and MVR evaporation crystallization.

The clean water is supplied to the power plant desalination system and the production water system. Waste salt is supplied to the Transportation Bureau to use as snowmelt agent and chemical raw materials.

Aerial view of Japanese Oji Paper Co., Ltd. (OJI PAPER) in China.
Aerial view of Japanese Oji Paper Co., Ltd. (OJI PAPER) in China.