Có 180+ tài liệu thuộc chủ đề "nghiên cứu môi trường"
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407 The gold and silver statues of the Acropolis are melted down to pay for the Athenian fleet.. 347 Rome introduces its coinage in the form of weights of copper.. 312 Romans begin construction of the Appian Way, which ultimately stretches for 600 kilometers.. 50 The water wheel is invented in Greece and is soon also used in the Roman...
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Black lung disease: A pneumoconiosis, or disease of the respiratory system, brought on by long-term in- halation of coal dust.. See also Anion.. Chemical weathering: The chemical decomposition of solid rock by processes that change its original materials into new forms that are chemically stable at or near the Earth’s surface. See also Mechanical weathering. See also Weather.. Crust: The...
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Gabriola Island, B.C.: New Society, 2009.. Cordesman, Anthony H., and Khalid R. New York:. New York: Cambridge University Press, 2007.. Goetzberger, A., and Volker U. New York: Springer, 2005.. Herbst, Alan M., and George W. New York: John Wiley, 2007.. New York: John Wiley &. Holland, Geoffrey B., and James J. New York: Crabtree, 2008.. New York: J. Suppes, J.,...
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New York: Oxford University Press, 2007.. The Politics of the Global Oil Industry: An Introduction. New York:. The Law of the Sea: Progress and Prospects. New York: Oxford University Press, 2006.. New York: Algora, 2006.. New York: Oxford University Press, 2008.. New York: Novinka Books, 2007.. New York: Foundation Press, 2007.. New York: Metropolitan Books, 2008.. Fishing for Answers: Making...
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International Whaling Commission http://www.iwcoffice.org. A simple Web site that provides reports, press re- leases, and other statements from the commission.. The Land Institute http://www.landinstitute.org. This Web site centers on news, publications, and programs. http://www.nps.gov/plants/MEDICINAL/index.htm A Web site dedicated to outlining the medicinal uses of plants. http://www.millenniumassessment.org/en/. The Web site has downloadable versions of entire assessment reports on issues such as...
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world production, 1 Abyssal zone, 852. See also nation names. See also Atmosphere Air Quality Act Air Quality Control Regions, 211 Air transportation . end-use statistics, 34. world production, 31. world production, 819. end-use. world production, 67 Arsenite, 66. end-use statistics, 70. world production, 71. See also Air pollution. See also Fuel cells;. end-use statistics, 102. See also Genetic diversity....
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See also Zaire Coniferous trees, 464. Convention on the Law of the Sea Convention on Trade in. See Category Index. Democratic Republic of the Congo, 237;. end-use statistics, 254;. world production, 251 Copper carbonates, 179 Coquina, 695. world production, 259 Corn syrup, 1172. See also Oil. end-use statistics, 9. Democratic Republic of the Congo. organizational structure, 290 Department of the...
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world production, 631. See Category Index under. end-use statistics, 691. world production, 689. end-use statistics, 694. end-use statistics, 697. world production, 709. world production, 710 Magnetic alloys, 633. end-use statistics, 715. world production, 714. world production, 700. See also Cattle;. See also Human health. end-use statistics, 726. See also specific names Metamictization, 731-732 Metamorphism, 732-738. See also Natural gas. end-use...
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Online English edition of the Chinese language journal. Physiological adaptability of three mangrove species to salt stress. Abstract: The impact of salinity on three arboreal mangrove plants, Sonneratia apetala (Sa), S. The three mangrove species were treated with different salinity levels over a three-month period. The re- sponse and adaptation of these three mangrove species to salinity were shown to...
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NGHIÊN CỨU BIẾN ĐỘNG CỦA THIÊN TAI (LŨ LỤT VÀ HẠN HÁN) Ở TỈNH QUẢNG NAM. TRONG BỐI CẢNH BIẾN ĐỔI KHÍ HẬU. Biến đổi khí hậu có xu hướng tác động ngày càng nghiêm trọng đến sản xuất, đời sống và môi trường ở Việt Nam. Theo báo cáo mới nhất của Viện Phân tích Rủi ro Maplecroft (Maplecroft,...
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NGHIÊN CỨU MÔI TRƯỜNG DƯỚI GÓC ĐỘ NHÂN HỌC Ở PHƯƠNG TÂY VÀ VIỆT NAM. Tác giả bài viết cho rằng, mặc dù dưới tên gọi khác nhau, việc nghiên cứu mối quan hệ giữa con người với môi trường của các học giả phương Tây và các học giả Việt Nam có khá nhiều nét tương đồng. Nghiên cứu...
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Adsorption of Phosphate from Aqueous Solution Using Activated Red Mud. Adsorption of phosphate (PO 4 32 ) from aqueous solution on ac- tivated red mud (ARM) was studied as a function of time, pH, temperature, concentration of adsorbent and adsorbate in acetic acid–sodium acetate buffer medium. The adsorption of phosphate follows Langmuir as well as Freundlich adsorption isotherms. Key Words:...
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APPLIED CATALYSIS A: GENERAL. E L S E V I E R Applied Catalysis A: General . Characterization and deactivation of sulfided red mud used as hydrogenation catalyst. Red mud is a residue in the production of alumina by the Bayer process. The evolution of sulfided red mud activity and selectivity with reaction time was studied for the hydrogenation of...
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REMOVAL OF CONGO RED FROM WASTEWATER BY ADSORPTION ONTO WASTE RED MUD. Waste red mud, an industrial byproduct, generated during the processing of bauxite ore, is recycled for the adsorption of congo red from aqueous solution.. The adsorption capacity of the red mud for the dye was 4.05 mg/g. Effect of pH and desorption studies suggest that the mechanism of...
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In the present research a sequential step extraction was employed to investigate metal speciation (into exchangeable, bound to carbonate, to Mn and Fe oxides, to organic matter and in residue phase) and the effect of red mud on metal speciation in compost of sewage sludge for Cr, Cu, Ni, Pb and Zn. The effect of red mud addition and composting...
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HEAVY METAL CATION UNCONVENTIONAL SORBENTS ASHES). (RED MUDS AND FLY. bauxite waste red muds and coal fly ashes acting as sorbents. These heavy-metal-loaded solid wastes may then be solidified by adding cement to a durable concrete mass assuring their safe disposal. The breakthrough volumes of the heavy metal solutions have been measured by dynamic column experiments so as to determine...
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Phosphate removal from aqueous solutions using red mud wasted in bauxite Bayer's process. The red mud wasted from the Guinean bauxite refinery was studied for phosphate removal from model aqueous solutions of potassium orthophosphate (OPh) and sodium tripolyphos- phate (TPPh). The red mud has been treated with concentrated sulphuric acid. After filtration of the acid suspension, the activated mud was...
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The addition of clay in the form of bauxite refining residue (red mud) prior to composting has been suggested as a way to control heavy metal mobility in compost. Leachability and plant availability of metals in a mixture of grass clippings and sawdust spiked with metal solution was markedly reduced during the composting process. The fate of metals in municipal...
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IMMOBILIZATION OF HEAVY METALS IN SEDIMENT DREDGED FROM A SEAPORT BY IRON BEARING. Pot and field trials were carried out using sediment dredged from the port of Bremen (Germany) and deposited in a settling basin near Bremen. the sediment is polluted with Cd and Zn. Five iron-bearing materials were added to the soil (1% pure Fe in soil dry matter)...
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Adsorption of Hexavalent Chromium from Aqueous Solution by Using Activated Red Mud. Adsorption by activated red mud (ARM) is investigated as a possible alternative to the conventional methods of Cr(VI) re- moval from aqueous synthetic solutions and industrial effluents.. Adsorption characteristics suggest the heterogenous nature of the adsorbent surface sites with respect to the energy of adsorption.. The applicability of...