Applied Mechanics and Materials Vols. 260-261

Abstract: This paper suggest 5m depth line is suitable depth for sea areas reclamation based on study of sea areas reclamation investing and established estimationmethods for spatial resource capacity of sea areas reclamation. Then Liaoning province in China was chose as a case to estimateitssea areas reclamation capacity. The result shown as follows: Depth of sea areas near the coastline in Liaoning province is smaller than 5m in most sea fields. Length of coast with under water slope angle less than 1°is 1988.77km and account for 52.25% coast of Liaoning province. The total areas of sea reclamation capacity is 211714.06hm².Its distributes mainly in Dalian sea areas, Jinzhou sea areas and Yingkou sea areas with percentage of 47.19%，18.78% and 14.53%,respectively.

Abstract: In this paper, we used TM image data in the lower reaches of the Tarim River as well as ecosystem service value assessment methods, and assessed the change of regional land use/ cover and analyzed its ecosystem service value, and discussed the driving forces of the change factors. The results show that : the study area is mainly grassland and desert grasslands accounted for more than 43% , the desert about 32% , less than 6% of the forest area , waters and wetlands area , less than 1% of the total area, which mean that the area is mainly the oasis agriculture , desertification serious water shortages. Since 2000, the , the ecological restoration project significantly effective under the emergency water conveyance on the lower reaches of the Tarim River, woodland restoration and water area increased , the desert area has decreased. GDP continued to increase from 2000 to 2005, the value of ecosystem services greatly reduce. In a shorter time scale, agricultural development and human activity are the dominant factors of the transfer of the value of ecosystem structure adjustment and service functions in the study area.

Abstract: Extracellular polymeric substances (EPS), which are vital cellular polymeric substances, play an important role in biological wastewater treatment. In this paper, four SBRs (blank, added 20mg/L Fe3+, added 40mg/L Cu2+, added both 20mg/L Fe3+ and 40mg/L Cu2+, respectively) were used to investigate the effect of Fe3+ and Cu2+ on EPS produced by microorganism from activated sludge. Carbohydrate and protein were main components of EPS. The total content of EPS, the content of protein and carbohydrate, and the content of DNA in EPS were detected. The results show metal ion had an effect on the formation of EPS and the total content of the EPS. The effect of ferric ion on protein was more obvious than copper ion. Furthermore, the addition of metal ion had little effect on DNA in EPS.

Abstract: A series of manganese-cerium oxide support titanium oxide with different Fe/Ti, Ce/Ti ratio were investigated for selectivity catalytic reduction of NO low at temperature with NH3 as a reducing agent. The catalysts base Mn/TiO₂ were prepared by sol-gel. The effect of amount of Ce and Fe oxide on the NO conversion of Mn/TiO₂2was studied. X-ray diffraction (XRD), temperature program desorption (TPD) were carried out. It was known that cerium oxides and iron oxide promoted preformance of Mn/TiO2 for low temperature. because Lewis is mainly take important role in the reaction for low temperature.

Abstract: The photochemical degradation of two antibiotics, enrofloxacin and ciprofloxacin hydrochloride, was preliminarily studied under irradiation with a high-pressure mercury lamp (HMPL) in this paper. The influence of initial concentration of antibiotics, Fe (Ⅲ) and platymonas subcordiformis on the degradation efficiency of antibiotics were investigated. The results suggested that in the presence of P. subcordiformis, the degradation efficiency of enrofloxacin and ciprofloxacin hydrochloride were 85.0% and 84.2% in aqueous solutions underwent photodegradation under HMPL irradiation, respectively. Moreover, the lower initial concentration of antibiotics improved photodegradation rate of antibiotics.

Abstract: This paper calculates carbon emissions in Hebei Province based on energy consumption and carbon coefficients and adopts the index decomposition model to analyze the influence of value-added industries and carbon emissions per unit added value on carbon emissions.The results indicate that the increase of value-added industries in Hebei Province is the main factor affecting the growth of carbon emissions, but the decrease of carbon emissions per unit added value induces carbon emissions to a lesser reducing. The conclusions can offer the decision basis for reducing carbon emissions.

Abstract: Main production layers of Tahe oilfield are Ordovician carbonate karst reservoirs, but the control factors of this series of karst reservoirs remains unclear. Combining with drilling, seismic data etc., this paper analysis the control factors of karst from 3 aspects that fractures, paleogeomorphy and unconformity surface in this paper. Research shows that the main control factors of karst are fractures and their associated cracks, unconformity surface and karst landforms. Unconformity surface, karst landforms are the main control factors of karst in early Hercynian period. Fractures and their associated cracks are the important control factors of karst in middle Caledonian and early Hercynian period. On the basis, summarizes genetic model graph of karst.

Abstract: This paper first built the evaluation index system for the eco-environmental vulnerability, natural disaster, and regional poverty in Inner Mongolia, and then adopted the principal component projection analysis to obtain vulnerability degree of eco-environment, risk degree of natural disaster and regional poverty degree. Then the classification for them was conducted, coupled with the analysis of their own characteristics. Moreover, the coupling analysis was utilized to carry out classification and research for the coupling relationship between them, aiming to provide scientific theoretical basis for the ecological protection and construction, the disaster prevention and mitigation as well as the poverty alleviation and development in Inner Mongolia.

Abstract: The wastewater of halogen products were treated with UASB-SBR method, and the influence of the UASB reactor operation days on the CODCr removal were experiment, decolorization removal and turbidity removal, aeration time, as well as water load. The results showed that: the halogen products wastewater was treated by UASB process; the CODCr removal of wastewater can reach 86.2 %. Then the wastewater were treated with SBR process, and the CODCr of wastewater fell below 100 mg/L, which can meet the second grade discharge standard of “Integrated Wastewater Discharge Standard”（GB8978-1996）.

Abstract: Investigated the influence of absorbency, turbidity and suspended substance in printing wastewater treatment by regulating the pH value of water treatment. Firstly, was acidified the wastewater samples to 5, 4, 3, 2, then alkalize them to 8、9、10、11、12. Calculated decolorization removal, turbidity removal and the suspended substance removal. The results show that, the decolorization removal and the turbidity removal were low after acidification. While after alkalized treatment the decolorization removal and the turbidity removal were all rise. The decolorization removal and turbidity removal increased following with the increase of pH of samples that first acidified and then alkalized. And it was the most obvious when the pH was 12. When the wastewater samples first acidized the pH to 4 and then alkalized the pH to 12, the dispose effects was the best. In these conditions, the decolorization removal and turbidity removal could reach 57.7 % and 72.8 %. After acidification, the suspended solids removal came down followed with the rise of pH value. As the water samples in same acidification value and then alkalized, with the increase of pH, the suspended solids removal first rose and then came down. It could get the best dispose effects at the pH 11, the suspended solids removal could reach 41.4 %.