Li A.,China University of Mining and Technology |
Li A.,Jiangsu Key Laboratory of Resource and Environmental Information Engineering |
Zhang Y.,China University of Mining and Technology |
Zhang Y.,Jiangsu Key Laboratory of Resource and Environmental Information Engineering |
And 4 more authors.
Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition) | Year: 2010
Based on the Ecological Superior Nitrification Denitrification(ECOSUNIDE) technique and unified dynamics, the dynamic equation and theory were analyzed, and the engineering experiments on ECOSUNIDE process were conducted. The results show that the treatment capacity of ECOSUNIDE system is 4500 m3/d more than that of A2O system in the same conditions. Effluent BOD, COD and NH3-N are about 6,25 and 1.9 mg/L respectively at low temperature and carbon source. These indexes meet with the Class I-A criteria specified in discharge standard of pollutants for municipal wastewater treatment plant (GB 18918-2002), the other indexes meet with the Class I-B criteria. The activated sludge was analyzed and compared, and the results show that the characteristics of the activated sludge are improved, with richer biological phases, darker and closer zoogloea, clearer flocs edges, and more obvious filamentous.
Bian H.-F.,China University of Mining and Technology |
Bian H.-F.,Jiangsu Key Laboratory of Resource and Environmental Information Engineering |
Zhang S.-B.,China University of Mining and Technology |
Zhang Q.-Z.,China University of Mining and Technology |
Zhang Q.-Z.,Jiangsu Key Laboratory of Resource and Environmental Information Engineering
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2010
The dual-observation adjustment model is proposed, which has advantages of meeting the necessary abundant observations for posterior estimation and improving precision and reliability of network adjustment. This model is characterized by more condition equations and easier to meet the estimable condition of posteriori estimation. A example is calculated by the model. The result show that differences, between true values and adjusted values used typical method of three gyroscopic sides, are -7", -62", -54" respectively, but the differences of Helmert method are -10",-12",- 15". The studies we have performed indicate that the proposed model dramatically improves the precision and reliability of control network adjustment for underground by Helmert variance component estimation. Consequently, the model is particularly suitable for precision data processing of underground control network, and also provides theoretical basis for designing the surveying scheme of precision control network. © 2010 SPIE.
Chen F.,Jiangsu Key Laboratory of Resource and Environmental Information Engineering |
Chen F.,China University of Mining and Technology |
Wei N.,Jiangsu Key Laboratory of Resource and Environmental Information Engineering |
Wei N.,China University of Mining and Technology |
And 6 more authors.
Proceedings - 2011 19th International Conference on Geoinformatics, Geoinformatics 2011 | Year: 2011
The monitoring about the changes of land use and cover and NPP in mining area is one of hot spots in the field of resources and environment. Combining with ground field survey data, the remote sensing image in different periods in mining area and the geographic information technology are used to study the changes of Land Use and Cover and NPP. The results show that the degree of the change of land use and cove from 2000 to 2010 is higher than the degree from 1990 to 2000. The types of land use and cover also change more violent. The land utilization degree is increasing. It shows that human activities have bigger interference to the districts. The NPP in 2010 is more than the NPP in 2000 and it is lower than the NPP in 1990. © 2011 IEEE.