On the 2nd of February, 2012 in Qingbaijiang District, Chengdu, Sichuan, a grand opening ceremony for the first batch of major projects was held in Chengdu International Container Logistics Park. The total number of projects to be started this time is 40, with a total investment of 30.8 billion yuan, involving new industries, modern logistics, modern trade, modern agriculture and other fields. After the projects are completed, they are expected to realize an annual sales income of 96 billion yuan. The annual tax revenue is 29 yuan. Billion yuan, employs more than 68,000 people.
Among them, the total investment of 4 billion yuan in the international hardware and electronic distribution market is the Qingbaijiang District, Chengdu City Commission to implement the "Urban City Excellent City" strategy, following the "Northern Reform" project one of the important achievements, the project construction area of ​​more than 1.4 million square meters After completion, it can realize an annual transaction volume of 50 billion yuan, an annual tax of 1.25 billion yuan, providing 25,500 jobs, forming a hardware and electrical business transaction, fund settlement center, e-commerce platform, price index release, product display and various types of living facilities. The facilities are integrated into the “Yiwu market†in western China.
Dashenggong Machinery Co., Ltd. invested 300 million yuan to build an auto parts production line technological transformation project is an important supporting project of China's heavy truck Chengdu ace commercial vehicle production base, after the completion of the project, each year can be China's heavy truck group Chengdu ace commercial vehicle production The base will provide 430,000 sets of spare parts for automobile radiators and will play a positive role in the development of the long-distance automobile industry chain in Qingbaijiang District.
Polyacrylamide (PAM) is a water-soluble polymer, which is insoluble in most organic solvents, has good flocculating properties, can reduce frictional resistance between liquids, Can be divided into non-ionic, anionic, cationic and amphoteric four types.
When PAM is used for flocculation, it is related to the surface properties of the species being flocculated, especially the potential, viscosity, turbidity, and pH of the suspension. The kinetic potential of the particle surface is the reason for particle inhibition. Can reduce the potential and condense.
Granular polyacrylamide flocculant cannot be directly added to sewage. It must be dissolved in water before use, and its aqueous solution are used to treat sewage.The water in which the particulate polymer is dissolved should be clean. Generally tap water is suitable for formulating polymer solutions. Strong ACID, strong alkali, high salt water is not suitable for preparation. Water at room temperature is ok, no necessary to heat. Dissolution is slow when the water temperature is below 5 ° C. Increasing the water temperature will accelerate the dissolution rate, but above 40 ° C will accelerate the degradation of the polymer and affect the use effect. The solution concentration is recommended to be 0.1% -0.3%.
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