Sökning: "natural arsenic"
Visar resultat 16 - 20 av 32 uppsatser innehållade orden natural arsenic.
16. Kan dioxiner och tributyltenn ha kontaminerat Gäddviken, NV Nacka kommun? : En förstudie om förekomsten av organiska föroreningar från tidigare industriverksamhet i Stockholmsområdet
Kandidat-uppsats, Stockholms universitet/Institutionen för naturgeografiSammanfattning : Stockholmsområdet har länge varit ett industrisamhälle och idag finns det tusentals områden som potentiellt är förorenade av de tidigare verksamheterna. Dessa områden har ofta höga halter av både tungmetaller och organiska miljögifter. LÄS MER
17. Geochemistry of arsenic and heavy metals in pyrite ash : speciation, solubility control mechanisms and geochemical modelling
Master-uppsats, SLU/Dept. of Soil and EnvironmentSammanfattning : 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. LÄS MER
18. Quality Assessment of sludge from Glen Valley WWTP and its potential as fertilizer
Master-uppsats, Lunds universitet/Kemiteknik (CI)Sammanfattning : The use of sludge as fertilizers contributes to the recycling of nutrients to the environment due to its origin from wastewater and therefore relatively high content of nutrients and organic matter. However, wastewater does also contain hazardous compounds like heavy metals and micropollutants which eventually are separated to the sludge during the treatment processes at the wastewater treatment plant. LÄS MER
19. Påverkan på Valboåsen från verksamheter inom Svedens industriområde samt närliggande områden : hot mot grundvattnets kvalitet och kvantitet?
Kandidat-uppsats, SLU/Dept. of Soil and EnvironmentSammanfattning : The aim of this work was to find out what potential contaminants from roads, residential area and businesses within Svedens industrial area that can affect groundwater quality and quantity. Data collection was from SGU, VISS, internal material from Gävleborg county Administrative Board and Gävle municipality archive. LÄS MER
20. Mineral barrier systems for the treatment of metal-polluted water from an alum shale deposit
Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Oil and gas were recovered from alum shale (black shale) at Kvarntorp, Närke,during a period of 24 years. One of the remnants of this industry is a 100 m highdeposit with high contents of uranium, arsenic, molybdenum, vanadium and otherelements. LÄS MER