Chitianhua Paper Co., Ltd. has recently won the advanced collective honor of environmental protection work in Guizhou Province. Up to now, the company has played an active role in adjusting the structure of China's paper products, reducing high-grade pulp imports, optimizing the ecological environment of the Chishui River Basin, and protecting the water and soil loss in the upper reaches of the Yangtze River. Since the company was put into production in 2008, it has invested more than 100 million yuan in equipment reform and technology upgrades. They added sludge drying equipment to increase the dryness of the sludge from 15% to 60%. The sludge was then used in the production of compound fertilizers to turn waste into treasure. In order to strengthen the monitoring of pollutant discharge, they incorporated the wastewater online monitoring system into the national 121 national control platform and became the only pulp and paper company in Guizhou Province that has passed ISO14001 environmental management system certification. Two-stage Compounding Extruders Double Screw Extruder,Plastic Extruder,Two-Stage QINGDAO SHUNDE PLASTIC MACHINE CO.,LTD , http://www.shunde-china.com