TY - GEN A1 - Krupińska, Izabela A2 - Greinert, Andrzej - red. PB - Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego N2 - Humic substances are included in a group of most widespread organic compounds on the Earth. The paper includes review of literature concerning structure, the physico-chemical properties of humic substances and their impact on quality of groundwater and treatment. N2 - Coexistence of humic substances and iron in groundwater causes that a particular part of iron occurs in a form of ferro-organic compounds, whereas water has an increased colour intensity and turbidity. Successful purification of such water creates technological problems and is practically impossible to achieve by applying traditional groundwater treatment processes. L1 - http://www.zbc.uz.zgora.pl/Content/45555/PDF/5_krupinska_problemy.pdf L2 - http://www.zbc.uz.zgora.pl/Content/45555 KW - substancje humusowe KW - oczyszczanie wód podziemnych KW - humic substances KW - treatment of groundwaters T1 - Problemy związane z występowaniem substancji humusowych w wodach podziemnych = Problems associated with humic substances in the groundwater UR - http://www.zbc.uz.zgora.pl/dlibra/docmetadata?id=45555 ER -