The Daqing Petrochemical Company's storage and transportation center started with the saving of water, steam and industrial winds. In 2007, it washed 515 cars, saved 7,481 tons of fresh water, and reduced 15,794 tons of sewage.
The center improved the work efficiency of the can washing machine and optimized the technological process, so that the working pressure of the can washer was improved, the water loss was greatly reduced, the working efficiency was improved, and the production cost was reduced. The tank workshop will also be dedicated to the special car to reduce the repeated washing operation. At the same time, they also strictly control the external sewage indicators, in which the pH value is controlled at 6-9.5, the COD value is less than 2500 mg/L, and the comprehensive qualified rate of the external sewage is more than 100%.
The center improved the work efficiency of the can washing machine and optimized the technological process, so that the working pressure of the can washer was improved, the water loss was greatly reduced, the working efficiency was improved, and the production cost was reduced. The tank workshop will also be dedicated to the special car to reduce the repeated washing operation. At the same time, they also strictly control the external sewage indicators, in which the pH value is controlled at 6-9.5, the COD value is less than 2500 mg/L, and the comprehensive qualified rate of the external sewage is more than 100%.