43987 rocks soils

arsenic contamination in soils, water and plants

arsenic contamination in soils, water and plants
... threatened by arsenic or arsenic contaminated in other medias not only in the water To acquire the solution, this study was performed to investigate the contaminant of arsenics in soils and plants compared ... outside the interesting sub-catchment studied area • Water sampling: At the same location of soil and plants samplings, surface water were collected for arsenic contamination testing One sample ... Bailey et al, (2003) RESULTS AND DISCUSSION • Arsenic contamination in plants Annual crop: Laboratory results as shown in table1 reveal that there are arsenic contaminant in plants at all locations...
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PREDICTION OF ATRAZINE FATE IN RIPARIAN BUFFER STRIPS SOILS USING THE ROOT ZONE WATER QUALITY MODEL

PREDICTION OF ATRAZINE FATE IN RIPARIAN BUFFER STRIPS SOILS USING THE ROOT ZONE WATER QUALITY MODEL
... in each window session RESULTS AND DISCUSSIONS Simulation of atrazine fate, leaching and runoff loss As atrazine load into the RBS and the runoff depth from the cornfield increased the atrazine ... only provides inputs to the rest of the model that there is a crop growing Simulation of atrazine transport The focus of this simulation was on the movement of atrazine after entering the RBS RBS ... increased the atrazine mass loss in runoff leaving the RBS increased (Table 4) Atrazine mass in runoff leaving the RBS were in the range of to 21% of the amount entering the RBS This implied that even...
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Direction and Movement Space Rocks

Direction and Movement Space Rocks
... some medium and small rocks can’t be placed at the start of a level Chapter 7: 260 Direction and Movement: Space Rocks Moving Rocks To move the rocks, we just need to look at each rock and get the ... i:int =rocks. length-1;i>=0;i ) { // move the rocks var rockSpeed:Number = rockSpeedStart + rockSpeedIncrease*gameLevel; rocks[ i].rock.x += rocks[ i].dx*timeDiff*rockSpeed; rocks[ i].rock.y += rocks[ i].dy*timeDiff*rockSpeed; ... rocks[ i].dy*timeDiff*rockSpeed; // rotate rocks rocks[i].rock.rotation += rocks[ i].dr*timeDiff*rockSpeed; // wrap rocks if ( (rocks[ i].dx > 0) && (rocks[ i].rock.x rocks[ i].rock.x -= 590; } if ( (rocks[ i].dx...
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Tài liệu STRATIGRAPHY AND AMMONITE FAUNA OF THE VOLGIAN AND BERRIASIAN ROCKS OF EAST GREENLAND ppt

Tài liệu STRATIGRAPHY AND AMMONITE FAUNA OF THE VOLGIAN AND BERRIASIAN ROCKS OF EAST GREENLAND ppt
... but further than this I am not prepared to go The dip of the rocks exposed in the 17all~gsides is often vcry nearly 1v Stratigraphy and Anr~noniteFauna of East Greenland 13 the same as the gradient ... Type: The example figured by NIKITINis accepted as the holotype of the species The genns and species is represeritcd in East Greenland by two Iv Slratigraphy and Ammonite Fauna of East Greenland ... regards as the equivalent of thc npper part of t h e Portland Beds of southern England If, with ARKELL (1946, pp 24-28), we place the Portland Beds in the upper part of the Lower Volgian, they, the...
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nghiên cứu hệ thống cụm máy tính xử lý song song rocks và ứng dụng

nghiên cứu hệ thống cụm máy tính xử lý song song rocks và ứng dụng
... công nghệ xử song song phân cụm nói riêng, sau tập trung nghiên cứu hệ thống cụm máy tính xử song song tiêu biểu: Rocks Các nội dung đƣợc trình bày là: Các kiến trúc xử song song SISD, ... Flynn), hệ thống tính toán đa nhân, hệ thống đa xử đối xứng, hệ thống tính toán lƣới, tính toán cụm hệ thống xử song song cực lớn (Chƣơng 2); giới thiệu tổng quan kiến trúc thành phần hệ thống ... lƣợng không nhiều hệ thống xử song song kiểu chứng tỏ xử song song chƣa thực phát triển mạnh mẽ Việt Nam Xét mặt công nghệ, việc xây dựng, quản trị ứng dụng hệ thống xử song song dễ dàng...
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Tài liệu NASA’S MANAGEMENT OF MOON ROCKS AND OTHER ASTROMATERIALS LOANED FOR RESEARCH, EDUCATION, AND PUBLIC DISPLAY doc

Tài liệu NASA’S MANAGEMENT OF MOON ROCKS AND OTHER ASTROMATERIALS LOANED FOR RESEARCH, EDUCATION, AND PUBLIC DISPLAY doc
... REPORT NO IG-12-007 DECEMBER 8, 2011 OVERVIEW NASA’S MANAGEMENT OF MOON ROCKS AND OTHER ASTROMATERIALS LOANED FOR RESEARCH, EDUCATION, AND PUBLIC DISPLAY The Issue Materials originating from extraterrestrial ... Affairs Office Figure Management and Distribution of Astromaterials for Research, Education, and Public Display NASA Office of Education NASA Science Mission Directorate NASA Office of Communications ... practices and update its policies for loans of astromaterials for education and public display purposes NASA’s Controls over Research Loans of Astromaterials Are Inadequate The Curation Office does...
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Programme title: Soils and Environmental Pollution MSc doc

Programme title: Soils and Environmental Pollution MSc doc
... regulatory and commercial aspects of contaminated land and land management and problem solving skills in relation to soil management and remediation Programme Outcomes Knowledge and Understanding ... micro-organisms in soils and their role in the cycling of C, N, P and S and their use in bioremediation Classical and bespoke statistical methods that may be applied to environmental data Key areas of environmental ... environmental law and regulation in England and Wales Techniques and processes involved in site investigation and risk assessment 10 Strategies and objectives of remediation 11 Sources, processing and disposal...
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Báo cáo "The effect of Cu concentration in soil and phosphorous fertilizer on plant growth and Cu uptake by Brassia juncea L. grown on contaminated soils " doc

Báo cáo
... a reduction of plant growth (plant height and biomass of Brassica juncea L.) with increasing concentration of Cu in soil The accumulation of heavy metal in plant tissues of Brassica juncea L ... Cu2 + in soil with plant growth and Cu accumulation in plant The relationship between Cu concentration in soil and biomass of Brassica juncea is presented in Table The highest plant height and ... biomass (Y2) and Cu content in plant (Y3) 3.3 Effect of phosphate fertilizer on plant growth and Cu accumulation in plant In contrast with the results of Cu application, phosphate fertilizers...
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Adsorption of heavy metal inons on soils and soil constituents

Adsorption of heavy metal inons on soils and soil constituents
... ion adsorption Spectroscopic evidence suggested the formation of weak mono- and binuclear metal- like outer-sphere complexes Parameters influencing adsorption Adsorption of heavy metal ions on soils ... the adsorption of different heavy metals onto soil humic acid [5] 50% of the Cd or Zn is adsorbed between pH 4.8–4.9 In general, adsorption of heavy metals onto oxide and humic constituents of soil ... functional groups are vital for adsorption The main parameters influencing heavy metal adsorption are soil pH, type and speciation of metal ion involved, heavy metal competition, soil composition and...
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Chelant extraction of heavy metal fromcontaminated soils

Chelant extraction of heavy metal fromcontaminated soils
... removal of radionuclides and heavy metals from soils using chelant extraction and REDOX manipulation techniques Previous studies involving chelant and acid extraction for removal of heavy metals ... phase; Ž2 chelants as scavenging agents for removal of heavy metals from sludge at wastewater treatment plants; and Ž3 use of chelants for in situ flushing of heavy metal- contaminated soils and ... water A total of six cycles of operation were performed to monitor the extraction of the three primary heavy metals of concern Žcopper, lead, and zinc as a function of the number of extractions...
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Chemical speciation and extractability of zn, cu and cd in two contrasting biosolids amended clay soils

Chemical speciation and extractability of zn, cu and cd in two contrasting biosolids amended clay soils
... chains via plant uptake This paper presents an incubation study on the extractability and chemical speciation of Zn, Cu and Cd in two soils experimentally amended with anaerobically digested biosolids ... variance in a factorial design of two soils and four application rates of biosolids (including unamended controls) Linear and quadratic contrasts were calculated for the four application rates of biosolids ... between the two soils The magnitude of the difference between the two soils in NH4 OAc- and EDTA Cu and Zn became more pronounced with increasing application rate of biosolids The interaction...
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Competitive sorption of cadmium and lead in acid soils of central spain

Competitive sorption of cadmium and lead in acid soils of central spain
... detailed investigation of competitive sorption processes between Pb and Cd metals using batch sorption isotherms and kinetics sorption studies for single and binary metal solutions in four soils Sorption ... retained in the soils, soils characteristics (including pH and clay content) and an empirical power function for kinetic sorption Materials and methods 2.1 Soils We collected bulk samples of the ... All coefficients of determination were significant at a P V 0.01 b 3.3 Sorption kinetics The kinetics of Pb and Cd sorption at all initial concentrations and from both single and binary sol- utions...
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