Essays about: "hydr"
Showing result 1 - 5 of 7 essays containing the word hydr.
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1. Remediation of an arsenic-contaminated anoxic aquifer in hjältevad with zerovalent iron : assessment and modelling of sorption strength and solubility of arsenic
University essay from SLU/Dept. of Soil and EnvironmentAbstract : In-situ injection of zerovalent Iron (ZVI) particles to remediate contaminated groundwater is a widely applied approach. However, studies assessing the remediation and immobilisation mechanisms of Arsenic (As) under anoxic field conditions with zerovalent iron particles are lacking, especially for nanosized sulphidated ZVI (S-nZVI) and oxidic shell free ZVI (OSF-nZVI). READ MORE
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2. Sequential phosphorus extraction using iron (hydr)oxide-impregnated filter paper strips
University essay from SLU/Dept. of Soil and EnvironmentAbstract : Phosphorus (P) is an important element for crop production. A low concentration limits crop growth whereas the residual quantity after fertilization contributes to eutrophication of surface waters. A key to success in the soil P management is its accurate estimation and potential supply to the plant. READ MORE
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3. Solubility of arsenic in Swedish contaminated soils : experiments and modelling
University essay from SLU/Dept. of Soil and EnvironmentAbstract : Even though arsenic can be found everywhere in the environment, it is phytotoxic and hazardous to human and animal health. Especially arsenic leaching produces contamination of groundwater. READ MORE
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4. Geochemistry of arsenic and heavy metals in pyrite ash : speciation, solubility control mechanisms and geochemical modelling
University essay from SLU/Dept. of Soil and EnvironmentAbstract : This thesis was part of a project at the Swedish Geotechnical Institute aiming at investigating the geochemistry of heavy metals and arsenic in pyrite ash. The spe-cific aims with this work were to extend the knowledge on solubility control mechanisms of metals in pyrite ash and how the sorption ability of the ash was dependent on content of iron (hydr)oxides. READ MORE
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5. Remediation of metal contaminated soils : evaluation of long-term effects of zero-valent iron amendments
University essay from SLU/Dept. of Soil and EnvironmentAbstract : The efficiency of contaminant stabilization in soil treated with zero-valent iron (ZVI) should be evaluated in long-term experiments, as stabilization techniques do not decrease total metal concentration. With time, properties of soil can change and iron hydroxides can crystalize, what can lead to a release of contaminants. READ MORE
