110 uppsatser · sida 4 av 8
… is to find a green innovative solution for reduction of emissions of heavy metals at the source, so that the sludge from the sewage treatment plants can be used as fertilizer. The target is to find a wheel wash method which leads to compliance with the guidelines for car …
… of the Aland Islands.The sludge already fulfills limit values for heavy metals in accordance with the Act"The Aland Government´s directive on the use of sewage sludge in agriculture." Inorder to clarify the sludge content of pharmaceutical and organic substances it isrequired …
På Härjeåns Nät AB, med fokus på energi- och materialåtervinning
… lack good management and hazardous waste needs concrete guidelines to follow. Metals are sorted well but may need an overhaul. Signs exist but are old and faulty. Waste occurs with many different characteristics and handling varies depending on the type of waste, geographic …
… glasswork left behind contaminated soil with different concentrations of heavy metals such as, arsenic from arsenic trioxide, a chemical used to remove bubbles during the melting of glass, and lead oxide, a chemical used in the production of crystal glass. Crystal glass’s …
Utredning av hur metallbelastningen varierat över tid med hjälp av sediment som ett naturligt historiearkiv
… tailings created during the mining operations. Drainage and leaching of heavy metals from these tailings may cause major environmental problems including acid mine drainage and leaching of heavy metals. This study examines a pond located near an old mining site, where part of …
En jämförelse av kunskapsläge mellan yngre och äldre vad gäller metallerna bly, arsenik, kadmium och antimon
Miljöproblem kan ses som ett växande problem. Studien visar hur stor kunskapen är hos gemene man angående särskilda miljöproblem och dess risker. I denna studie tas problemet upp angående miljö- och hälsofarliga metaller som ansamlas i slammet hos svenska reningsverk. Metallerna …
En studie på spridning av partiklar genererade från brand
… and unhealthy agents occur. Polyaromatic hydrocarbons (PAH) and toxic metals are examples among many others. These agents have a capacity to bond to particles and when the fire is extinguished, the particles can be transferred with the extinguish water into the soil and to the …
En analys av koppar, kdamium och zink i dagvatten från en parkering i Halmstad, Sverige
… with precipitation, oil leaks and fuel systems that drops down on the ground, metals from brake linings and rubber particles from tire wear are some of the aspects you have to take into account when categorizing the relationship between traffic and polluted stormwater. In this …
… values gives values for light, moisture, rection, nitrogen and how much heavy metals the locations have. The results of this paper show that two locations have decreased in size, two are basically the same and one has increased. The locations that have decreased in size mainly …
… place regarding the source of organic material. Additionally, selected heavy metals have been analyzed down the entire core and are presented along with the Norwegian classification system of ecotoxoicological limit values. The results are compared with a reference station …
möjligheter och begränsningar
… taken up by plants, later entering the human body through consumption, heavy metals are in focus. Urban environment needs to be a clean and healthy life environment. Air contaminants are toxic whether we eat them or breathe them in. Until then there are different techniques to …
… a large number of alarming reports saying that the sludge in addition to heavy metals, toxic organic compounds, also contains brominatedcontaining flame retardants and dangerous infectious matter from hospital waste water. The alarming reports made the LRF in October 1999 to ban …
The purpose of this study was to investigate how elevated levels of heavy metals affect the faunal species composition, abundance and species-diversity. The bentic macroinvertebrate fauna in the highly polluted lake Tisken was compared with the bentic macroinvertebrate fauna in …
… rate is slower. The main mechanism of deactivation is poisoning from alkali metals. In Johannes the poisoning is mainly due to water-soluble potassium. In Högdalen water-soluble potassium, sodium and acid soluble lead causes the deactivation. Potassium stands for just over half …
En teknisk/ekonomisk utvärdering av reningsmetoder för metallhaltigt avloppsvatten
… aims to investigate and assess the methods used to decrease the discharge ofmetals, primarily copper, from the water purification plant at Assa Industries plating factory inEskilstuna. Literature studies of the purification methods precipitation, ion exchange, evaporation …
