Sökning: "humic"
Visar resultat 16 - 20 av 87 avhandlingar innehållade ordet humic.
16. Origin and mobility of major and key trace elements (Cs, YREEs) in fracture groundwater in the upper 1.2 kilometres of coastal granitoids : Implications for future repositories of spent nuclear fuel
Sammanfattning : This thesis focuses on the chemical and isotopic features of groundwater residing in the upper 1.2 km of sparsely fractured crystalline bedrock of the Baltic Shield. LÄS MER
17. Long-term metal retention processes in a peat bog : Field studies, data and modelling
Sammanfattning : The study was inspired by the need to assess long-term metal retention in municipal solid waste (MSW) landfills. The long-term processes in landfills are poorly known due to the relatively short time that such landfills have been in existence. Natural analogues where similar metal binding processes could be expected were therefore sought for. LÄS MER
18. Studies on the formation of complex oxidation and condensation products of phenols : a contribution to the investigation of the origin and nature of humic acid
Sammanfattning : .... LÄS MER
19. Bioavailability of pesticides to benthic invertebrates : the role of aquatic biofilms and humic substances
Sammanfattning : In agricultural landscapes, pesticides are frequently contaminating nearby aquatic ecosystems. Unlike most other contaminants, pesticides are targeted against specific organism groups, but will also have negative effects on non-target organisms. When pesticides enter aquatic environments they tend to sorb to fine organic matter. LÄS MER
20. Sorption of humic substances and microbial activity in the course of artificial recharge of groundwater
Sammanfattning : Sorption of humic subtances and metal-humate complexes on aquifer material taken from basins used for artificial recharge of groundwater was studied in batch scale experiments. Distribution of bacteria attached to the material from uppermost layer and from the horizons below the infiltration basin were measured in the field studies. LÄS MER