"…enable Jiangxi to become the example of ecological civilization and pacesetter of building beautiful China,and realize the dream of a prosperous,harmonious and beautiful Jiangxi through our earnest efforts.&qu..."…enable Jiangxi to become the example of ecological civilization and pacesetter of building beautiful China,and realize the dream of a prosperous,harmonious and beautiful Jiangxi through our earnest efforts."Recent years have witnessed vigorous efforts made by the Provincial Foreign Affairs and Overseas Chinese展开更多
The oxidation ditch process is economic and efficient for wastewater treatment, but its application is limited in case where land is costly due to its large land area required. An innovative integrated oxidation ditch...The oxidation ditch process is economic and efficient for wastewater treatment, but its application is limited in case where land is costly due to its large land area required. An innovative integrated oxidation ditch with vertical circle(IODVC) system was developed to treat domestic and industrial wastewater aiming to save land area. The new system consists of a single channel divided into two ditches(the top one and the bottom one by a plate), a brush, and an innovative integral clarifier. Different from the horizontal circle of the conventional oxidation ditch, the flow of IODVC system recycles from the top zone to the bottom zone in the vertical circle as the brush is running, and then the IODVC saved land area required by about 50% compared with a conventional oxidation ditch with an intrachannel clarifier. The innovative integral clarifier is effective for separation of liquid and solids, and is preferably positioned at the opposite end of the brush in the ditch. It does not affect the hydrodynamic characteristics of the mixed liquor in the ditch, and the sludge can automatically return to the down ditch without any pump. In this study, experiments of domestic and dye wastewater treatment were carried out in bench scale and in full scale, respectively. Results clearly showed that the IODVC efficiently removed pollutants in the wastewaters, i.e., the average of COD removals for domestic and dye wastewater treatment were 95% and 90%, respectively, and that the IODVC process may provide a cost effective way for full scale dye wastewater treatment.展开更多
Integrated circuit is a typical key product in the digital economy era.Given external containment,breakthroughs in core technologies of integrated circuit are confronted with barriers of first movers in underlying tec...Integrated circuit is a typical key product in the digital economy era.Given external containment,breakthroughs in core technologies of integrated circuit are confronted with barriers of first movers in underlying technological ecology and with their threats of decoupling from the supply chain.Currently,China has various bottlenecks in the proprietary industrial ecosystem,and domestic substitution lacks effective overall planning.Therefore,it is essential to apply the underlying logic of asymmetric competition and to leverage a relatively complete industrial system,abundant application scenarios,solid talent base,and the institutional advantages of the new system for mobilizing resources nationwide to break through in integrated circuit manufacturing technologyand in domestic substitution.As such,it is necessary to further strengthen the top-level design,leverage the advantages of the new system for mobilizing resources nationwide to enhance the institutiona1lguarantee for domestic substitution of bottlenecks,and enhance basic research to consolidate the technological foundation for domestic substitution.Moreover,we should implement talent strategy to enhanceethe driving force of human resource for domestic substitution development.We should also further opening-up and cooperation policy to create an open domestic substitution ecology.In addition,we should increase counter-cyclical investment to nurture leaderssin asymmetric competition,and seize the demand window to drive domestic substitution with"epoch-making products."展开更多
文摘"…enable Jiangxi to become the example of ecological civilization and pacesetter of building beautiful China,and realize the dream of a prosperous,harmonious and beautiful Jiangxi through our earnest efforts."Recent years have witnessed vigorous efforts made by the Provincial Foreign Affairs and Overseas Chinese
文摘The oxidation ditch process is economic and efficient for wastewater treatment, but its application is limited in case where land is costly due to its large land area required. An innovative integrated oxidation ditch with vertical circle(IODVC) system was developed to treat domestic and industrial wastewater aiming to save land area. The new system consists of a single channel divided into two ditches(the top one and the bottom one by a plate), a brush, and an innovative integral clarifier. Different from the horizontal circle of the conventional oxidation ditch, the flow of IODVC system recycles from the top zone to the bottom zone in the vertical circle as the brush is running, and then the IODVC saved land area required by about 50% compared with a conventional oxidation ditch with an intrachannel clarifier. The innovative integral clarifier is effective for separation of liquid and solids, and is preferably positioned at the opposite end of the brush in the ditch. It does not affect the hydrodynamic characteristics of the mixed liquor in the ditch, and the sludge can automatically return to the down ditch without any pump. In this study, experiments of domestic and dye wastewater treatment were carried out in bench scale and in full scale, respectively. Results clearly showed that the IODVC efficiently removed pollutants in the wastewaters, i.e., the average of COD removals for domestic and dye wastewater treatment were 95% and 90%, respectively, and that the IODVC process may provide a cost effective way for full scale dye wastewater treatment.
基金funded by the major project of National Social Science Foundation of China"Research on the Strategy and Policy of Domestic Substitution of Core Technologies in Intelligent Manufacturing"(No.21&ZD132)the"lnstitutional Logic and System Construction for Promoting Innovation in Emerging Industries through the Digital Economy"(No.22&ZD099)the Discipline Construction Project of Advantageous Subjects in Strategic Enterprise Management of the Chinese Academy of Social Sciences.
文摘Integrated circuit is a typical key product in the digital economy era.Given external containment,breakthroughs in core technologies of integrated circuit are confronted with barriers of first movers in underlying technological ecology and with their threats of decoupling from the supply chain.Currently,China has various bottlenecks in the proprietary industrial ecosystem,and domestic substitution lacks effective overall planning.Therefore,it is essential to apply the underlying logic of asymmetric competition and to leverage a relatively complete industrial system,abundant application scenarios,solid talent base,and the institutional advantages of the new system for mobilizing resources nationwide to break through in integrated circuit manufacturing technologyand in domestic substitution.As such,it is necessary to further strengthen the top-level design,leverage the advantages of the new system for mobilizing resources nationwide to enhance the institutiona1lguarantee for domestic substitution of bottlenecks,and enhance basic research to consolidate the technological foundation for domestic substitution.Moreover,we should implement talent strategy to enhanceethe driving force of human resource for domestic substitution development.We should also further opening-up and cooperation policy to create an open domestic substitution ecology.In addition,we should increase counter-cyclical investment to nurture leaderssin asymmetric competition,and seize the demand window to drive domestic substitution with"epoch-making products."
