Essays about: "distribution of heavy metals"

Showing result 11 - 15 of 15 essays containing the words distribution of heavy metals.

1. 11. XRF-as a tool for monitoring of biocide load in boatyards : Case study on two boatyards in Lake Mälaren

   University essay from Stockholms universitet/Institutionen för miljövetenskap och analytisk kemi

   Author : Matz Norling; [2015]
   Keywords : ;

   Abstract : The aim of this study was to assess the suitability of a special application to a Field Portable, handheld X-Ray Fluorescence (FPXRF) analyzer for monitoring of boatyards with focus on biocide load on boat hulls. In addition, the instrument was used for investigating the spatial distribution of contaminants in soil and sediments. READ MORE

3. 12. Spatial distribution of heavy metals in surface marine sediments in the Mediterranean region

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Dimitra Kampezidou; [2015]
   Keywords : heavy metals; pollution; spatial distribution; surface marine sediments; Mediterranean Sea; enrichment factor;

   Abstract : Several scientific articles were mainly reviewed from Umeå’ s university database in order to determine the distribution, degree of contamination, and the sources of 7 selected heavy metals (Cr, Pb, Cu, Zn, Cd, Hg, Ni) in surface sediments along the coasts of the Mediterranean Sea. The Enrichment factor (EF) was used as pollution indicator to evaluate the extent of metal contamination in all the investigated areas. READ MORE

4. 13. Descriptive Assessment and Amendment of the SimpleTreat Model - Modelling of Organic Chemicals in Sludge for Soil Applications

   University essay from Lunds universitet/Industriell elektroteknik och automation

   Author : Belinda Chieng; [2012]
   Keywords : SimpleTreat; organic compounds; REVAQ; soil amendment; methodology; WWTP; fugacity and steady-state model; Technology and Engineering;

   Abstract : Large quantities and numbers of organic compounds (OCs) from industries and domestic sources enter the wastewater treatment plants (WWTPs) everyday, which is an ever-increasing issue in modern society. In WWTPs, the pollutants are either degraded or emitted to the air, the effluent (water) or the sludge (biosolids). READ MORE

5. 14. A geochemical characterization of the lower part of the Miocene shield-building lavas on Gran Canaria

   University essay from Lunds universitet/Geologiska institutionen

   Author : Romina Peetz; [2009]
   Keywords : Gran Canaria; shield-building lavas; Güigüi Formation; Earth and Environmental Sciences;

   Abstract : Ocean islands offer a great potential to provide information about mantle processes and the composition of the mantle. Gran Canaria is located in the centre of the Canary Island Archipelago and is well suited for such studies. A comprehensive study of the lower Miocene shield-building lavas is performed for this thesis. READ MORE

6. 15. Occurrence and distribution of heavy metals in three rivers on the Bolivian high plateau

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Anders Lilja; Greger Linde; [2006]
   Keywords : soil mechanics; Superficial waters; Sediments; Heavy metals; ARD; Altiplano; hydraulic engineering; Civil engineering; offshore technology; Väg- och vattenbyggnadsteknik; Technology and Engineering;

   Abstract : The basin of the Poopó Lake, situated on the Bolivian high plateau, is severely contaminated by the mineral extraction and processing activities within the area. Many rivers in the area contain high concentrations of arsenic, lead and cadmium both in the water and the sediment phase. READ MORE