Essays about: "humic substance"

Found 2 essays containing the words humic substance.

1. 1. Association of hydrophobic organic contaminants to size fraction of natural humic substances : using ultrafiltration and high-performance liquid chromatography

   University essay from SLU/Dept. of Aquatic Sciences and Assessment

   Author : Kristina Tattersdill; [2011]
   Keywords : humic substance; high-performance size exclusion chromatography; ultrafiltration; pesticide; size fraction;

   Abstract : Ultrafiltration and high-performance size exclusion chromatography (HPSEC) were used to determine interactions between different size-fractions of natural humic substance and carbofuran, lindane, chlorpyrifos and PCB-105. Ultrafiltration, using filter MWCO size of 1 kDa and 100 kDa, showed an adsorption of pesticide to filter. READ MORE

3. 2. Dynamics of Humic Substance in Bolmen Lake, Sweden

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Muluneh Ertiro Tumdedo; [2010]
   Keywords : Bolmen Lake; Temperature; Discharge; Dissolved Organic Matter; Water Colour; Storån River.; Humic Substance; Precipitation; Technology and Engineering;

   Abstract : Humic substance (HS) in natural water is a complex compound, and causes problems in the production and distribution of drinking water. In addition to the adverse effect of HS on the aesthetic of water quality, it also causes a health problem. The objective of this thesis was to analyse the dynamics of HS in Bolmen lake. READ MORE