Laiwu City, Shandong Province, Wenhe Chemical Co., Ltd. has always regard the environmental protection work as a major event related to the sustainable development of enterprises, and constantly increase the intensity of environmental protection and pollution control investment, to achieve the "zero emissions" of sewage and the comprehensive utilization of solid waste.
Wenhe Chemical actively promotes the treatment and recycling of waste water, waste gas and waste residue, and continuously improves its ability to control pollution. It has obtained ISO14001 International Environmental Management System Certification and OHAS18001 International Occupational Safety and Health Certification, becoming a high-tech enterprise and country recognized by the Science and Technology Department of Shandong Province. New material industrialization base backbone enterprises.
Wenhe Chemical employs a contracting system for the management of raw materials such as concentrated sulfuric acid, caustic soda, and formaldehyde, and builds archives for regular monitoring, inspection, and rust preventive maintenance. In order to prevent leakage, a 1.2-meter high dike with a volume of about 500 cubic meters was set up around the tank area in accordance with relevant national laws and regulations, and the ground inside the dike was treated with anti-seepage treatment. Invested more than 500,000 yuan to build two sets of desulphurization and dust removal towers to ensure the normal operation of desulphurization and dust removal facilities. A large amount of capital has been invested to install two sets of high-altitude air-gas collection and disposal devices for preventing the acid and alkali of polyester materials. After the exhaust gas of each process is collected by a fan, it is washed by alkaline spray to achieve a non-toxic and odorless high-level emission. In order to solve the problem of exhaust gas in the aluminum fluoride production area, a special material cyclone separator, atmospheric condensation separator, dripping device, gas-liquid separator, hydrogen fluoride scrubber, demister, and central absorber is integrated into the exhaust gas treatment. The facilities are fully automated to achieve high standards for emissions.
Around the sewage treatment, Wenhe Chemicals built three 25-cubic-meter sewage tanks in each of the two workshops in the water-reducing agent production area. After the sewage in the production process was settled in the sewage pool in three stages, it was pumped back to the workshop as a dilution liquid. . Specially invested more than RMB 1 million for the construction of a wastewater treatment station with wastewater storage tanks, pH adjustment tanks, chemical reaction tanks, flocculation tanks, clarification tanks and other treatment facilities. Some of the treated sewage is sent to the water reducing agent production area for recycling. The other part was returned to the aluminum fluoride plant as circulating cooling water utilization, achieving "zero discharge" of the sewage.
Wenhe Chemical actively promotes the treatment and recycling of waste water, waste gas and waste residue, and continuously improves its ability to control pollution. It has obtained ISO14001 International Environmental Management System Certification and OHAS18001 International Occupational Safety and Health Certification, becoming a high-tech enterprise and country recognized by the Science and Technology Department of Shandong Province. New material industrialization base backbone enterprises.
Wenhe Chemical employs a contracting system for the management of raw materials such as concentrated sulfuric acid, caustic soda, and formaldehyde, and builds archives for regular monitoring, inspection, and rust preventive maintenance. In order to prevent leakage, a 1.2-meter high dike with a volume of about 500 cubic meters was set up around the tank area in accordance with relevant national laws and regulations, and the ground inside the dike was treated with anti-seepage treatment. Invested more than 500,000 yuan to build two sets of desulphurization and dust removal towers to ensure the normal operation of desulphurization and dust removal facilities. A large amount of capital has been invested to install two sets of high-altitude air-gas collection and disposal devices for preventing the acid and alkali of polyester materials. After the exhaust gas of each process is collected by a fan, it is washed by alkaline spray to achieve a non-toxic and odorless high-level emission. In order to solve the problem of exhaust gas in the aluminum fluoride production area, a special material cyclone separator, atmospheric condensation separator, dripping device, gas-liquid separator, hydrogen fluoride scrubber, demister, and central absorber is integrated into the exhaust gas treatment. The facilities are fully automated to achieve high standards for emissions.
Around the sewage treatment, Wenhe Chemicals built three 25-cubic-meter sewage tanks in each of the two workshops in the water-reducing agent production area. After the sewage in the production process was settled in the sewage pool in three stages, it was pumped back to the workshop as a dilution liquid. . Specially invested more than RMB 1 million for the construction of a wastewater treatment station with wastewater storage tanks, pH adjustment tanks, chemical reaction tanks, flocculation tanks, clarification tanks and other treatment facilities. Some of the treated sewage is sent to the water reducing agent production area for recycling. The other part was returned to the aluminum fluoride plant as circulating cooling water utilization, achieving "zero discharge" of the sewage.