Acid pickling process is widely used in steel *** gas of hydrogen chloride,acid waste water,and waste hydrochloric acid were produced in the *** intensity is estimated by material equali-zation calculation of *** can ...
Acid pickling process is widely used in steel *** gas of hydrogen chloride,acid waste water,and waste hydrochloric acid were produced in the *** intensity is estimated by material equali-zation calculation of *** can estimate the emission source of pollution by the calculation of hydrochloric material *** technology of waste acid by roasting and regeneration is encouraged by the *** acid waste water should be aerated to avoid the drain returning yellow. Waste gas is absorbed in washing tower after being captured by the hermetic *** environmental impact assessment,we should demonstrate for environmental protection and cleaning up,and pay more attention to material equalization and cleaning production analysis.
Quantity of occasional land occupation in road construction nowadays breaches severely upon local ecology.A study on its ecologic rehabilitation shall be of far reaching importance for improvement of road ecosystem an...
Quantity of occasional land occupation in road construction nowadays breaches severely upon local ecology.A study on its ecologic rehabilitation shall be of far reaching importance for improvement of road ecosystem and protection of land *** the subject of land resuming,the author in this paper brings forward its theoretical basis,principles and techniques,referring to some foreign researches and some full-grown technical achievements,like the practice in a mining *** study and its resuming applications in a provincial road construction in Inner Mongolia raise some problems and relevant methods of *** these theories and applications bring in road system and environmental protection in harmony.
This thesis has evaluated the methods and indexes of Holocene Paleoflood,especially discusses the discrimination and indexes of the paleoflood incident and the reconstruction of hydrology of paleoflood and so *** poin...
This thesis has evaluated the methods and indexes of Holocene Paleoflood,especially discusses the discrimination and indexes of the paleoflood incident and the reconstruction of hydrology of paleoflood and so *** points out the problem existed in the present study of Holocene Paleoflood in *** author of mis thesis suggests the research trend in the ***,we should have a deeper and thorough research on slackwater deposition in the wild,secondly,we should put much more attention on the quantitative study of paleoflood,and thirdly,we should apply other subject into this research.
This paper presents an evaluation index system model to s the construction of "energy-efficient, environment-friendly society" in Shandong *** of factor analysis,Construction and evelopment status of 17 citi...
This paper presents an evaluation index system model to s the construction of "energy-efficient, environment-friendly society" in Shandong *** of factor analysis,Construction and evelopment status of 17 cities in Shandong Province are analyzed,using 2006-2008 statistics *** results show that comprehensive score of Weihai City is the highest,and mat of Heze City is the lowest during the three-year period from 2006 to ***,Qingdao,Yantai and Dongying City have received more prominent achievements in the construction of the "energy-efficient,environment-friendly society". Heze,Dezhou and other cities affected by restrictions on economic and social development,the "energy-efficient,environment-friendly society" constructions are in its initial stage.
Environmental Kuznets Curve(KEC) is the popular model of describing the relationship between environment pollution and economy growth;it is inverse U shape *** this paper,we analyzed the relationship between per capit...
Environmental Kuznets Curve(KEC) is the popular model of describing the relationship between environment pollution and economy growth;it is inverse U shape *** this paper,we analyzed the relationship between per capita GDP and three kinds of industrial waste discharge or generation from 1988 to 2008 in Shandong province,established the curves of *** result showed that the KEC of Shandong was inverse U shape and the whole curve generally speaking was in the left position of the inverse U shape curve.
from two aspects,this thesis put forwarded the index system to measure the level of China's low-carbon economy development,quantity index is CO emissions,the quality index is 10 thousand Yuan GDP energy *** this p...
from two aspects,this thesis put forwarded the index system to measure the level of China's low-carbon economy development,quantity index is CO emissions,the quality index is 10 thousand Yuan GDP energy *** this paper analysed the factors affecting China's low-carbon economy development level by means of grey relation *** shows that,the main factors affecting agricultural non-point source pollution are as following:the energy *** structure,the total population,the per capita level of education,science and technology funds. Therefore,in order to enhance the level of China's low-carbon economy,we must change the energy consumption structure,change the mode of economy development,reduce population,improve the population quality,and enhance the level of technological innovation.
Soil erosion is one of the most important forms of land degradation,which destroys the land resource,results in the emission of soil nutrition,generates a mass soil and sand pouring into the rivers, makes downstream r...
Soil erosion is one of the most important forms of land degradation,which destroys the land resource,results in the emission of soil nutrition,generates a mass soil and sand pouring into the rivers, makes downstream rivers deposit,and reduces the synthesis benefit of hydraulic engineering such as *** the state of soil erosion rapidly and efficiently,grasping the rule of its occurrence and development,and providing measures to reduce the soil erosion there has already become one of the important subjects of ecological environment *** the development of "3S" techniques,more and more applications of the "3S" techniques in soil erosion monitoring were *** article introduces the application status of "3s" techniques in soil erosion at home and abroad.
Based on the mean grain size of sediment,content of chemical element Strontium（Sr） and Zirconium（Zr）,magnetic susceptibility,organic carbon stable isotope(δC) and C-constrained chronologies,the climate change dur...
Based on the mean grain size of sediment,content of chemical element Strontium（Sr） and Zirconium（Zr）,magnetic susceptibility,organic carbon stable isotope(δC) and C-constrained chronologies,the climate change during 4910-3030 *** BP in upper and middle Yishu River was *** climate was warm and humid between 4910 *** BP and 4270 *** *** 4270 cal. yr BP to 3900 *** BP,the climate changed dramatically,the temperature and precipitation descend obviously,meaning an abrupt change has taken place in this *** 3900 *** BP - 3520 *** BP, the climate is cold and instability,then the temperature went up gradually during 3520 *** B.P.- 3030 cal. yr BP.
With the rapid development of Xinmi economy,eco-environmental problems are gradual prominence,and reasonable evaluation of the ecological environment is important base decided to economic *** rural ecological environm...
With the rapid development of Xinmi economy,eco-environmental problems are gradual prominence,and reasonable evaluation of the ecological environment is important base decided to economic *** rural ecological environment system is complexity,multi-attribute and multilayer tissue system,so its impact factors include natural,economic and social factor,the paper builds three lays rural ecological environment index system with analytic hierarchy process and presents standard value of the index evaluation,and calculates index weight with principal component analysis,and gives indexes computing method,and designs five classification standard,and presents corresponding classification remark,use the remark to evaluate rural ecological *** paper evaluates towns ecological degree and discusses the ways to improve ecological degree.
This paper takes Linyi city as a case,choosing food,clothing,household facility and services, health care,transportation and communication,cultural entertainment,housing payment as the independent variable represent t...
This paper takes Linyi city as a case,choosing food,clothing,household facility and services, health care,transportation and communication,cultural entertainment,housing payment as the independent variable represent the constitutions of the inhabitant consumption *** living sewage discharge and living garbage generation as the variable represent the environment *** is analyzed that the effects of the inhabitant consumption structure change of Linyi city on the environment from the year 1999 to 2004 based on the paths analysis model.
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