The method on the decolorization of bromocresol green by Fenton reagent has been *** effects of amount of HO,bromocresol green and Fe,as well as the pH value of the solution,reaction temperature and time on the decolo...
The method on the decolorization of bromocresol green by Fenton reagent has been *** effects of amount of HO,bromocresol green and Fe,as well as the pH value of the solution,reaction temperature and time on the decolorization rate of bromocresol green in wastewater were investigated. Experiments show that the best conditions are as follows:pH of 3.0,HO concentration of 12.82mmol·L, Fe concentration of l.4×10mol·L,bromocresol green concentration of 1.4×10 mol·L,reaction 60 min at 30℃or 5min at 60℃,The decolorization rate of bromocresol green waste water reached 95.6%.This method is simple,rapid,low consumption with no secondary pollution.
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 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.
Through the analysis of hydrochemical composition of natural water in Dongping Lake,the type and fundamental characteristics of hydrochemistry can be *** water is characterized by middle minieralized degree and hardne...
Through the analysis of hydrochemical composition of natural water in Dongping Lake,the type and fundamental characteristics of hydrochemistry can be *** water is characterized by middle minieralized degree and hardness,rich dissolve doxygen,and low alkaline *** type of water is ***,through the compositive assessment of water quality in this lake,the following conclusion can be given:mesoeutrophic-eutrophic status of the water body occupies the whole year of this lake.
The research progress of Poyang Lake environmental evolution was analyzed comprehensively;the geological background,temporal-spatial variation in Poyang Lake environmental evolution, environmental driving factors and ...
The research progress of Poyang Lake environmental evolution was analyzed comprehensively;the geological background,temporal-spatial variation in Poyang Lake environmental evolution, environmental driving factors and human activities were emphatically *** make further progress in the environmental evolution in Poyang Lake,it was also suggested to strengthen the quantitative study on the environmental impact of human activities,improve time-scale resolution of environmental evolution in Poyang Lake,establish regional response for environment change and correlate them with global records.
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.
Environmental pressure is generally measured by resource consumption and pollutant emission. To the 1990-2007 data sample,studying decoupling association with GDP and energy consumption on the base of decoupling indic...
Environmental pressure is generally measured by resource consumption and pollutant emission. To the 1990-2007 data sample,studying decoupling association with GDP and energy consumption on the base of decoupling indicator,and further analyzing decoupling indicators relation between GDP and CO2、SO2、*** can come to conclusion that China is relative decoupling situation between economic growth and S02..COD in 1990-2007,but degree of decoupling is different between *** to analyze different periods trends,so as far as possible objective assessment of economic growth pressure to environment.
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