Sixty per cent of the products from the degradation of humic acid (extracted from a Fenland organic soil) with a 10% sodium sulphide solution under au;toclave conditions for 2 h at 250Β°C were soluble in ether or ether-ethanol solutions. Several neutral volatile degradation products were observed by
Fluorescence analysis of photoinduced degradation of ecotoxicants in the presence of humic acids
β Scribed by O. N. Tchaikovskaya; I. V. Sokolova; N. V. Yudina
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 163 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1522-7235
- DOI
- 10.1002/bio.818
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Humic acids (HA) extracted from Spanish lignite, were studied to discover their Ca-complexing capacity and their coagulation threshold. It wasfound that the concentration of Ca' + ions necessary for the complete flocculation increased with the increase of pH and ionic strength (P) and it was linearl
The electrocheuucal oxldatlon-reduction processes of copper, cadmmm and lead m the presence of hums. actd (HA) m sodmm chlonde solutions were compared, ta!ung mto account the differences m the speaatlon of these. heavy metal tons and the type of the HA used The complexatlon propeties of HA for the m