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National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Impacts of eutrophication on water quality in reservoirs: an assessment of nutrient inputs from catchment and of the anti-eutrophication resistance of reservoir ecosystem
 Hejzlar, Josef ; Duras, J. ; Staňková, B. ; Turek, Jan ; Žaloudík, Jiří
The paper describes a methodology for the identification and quantification of nutrient sources in catchments (i.e. mainly point and diffuse sources, fishpond production, atmospheric deposition, natural background export) and for the determination of critical loads of reservoirs with nutrients, which are prerequisite for proposing of effective anti-eutrophication measures in reservoirs. An application of this methodology at the drinking water reservoir of Mostiště and its catchment showed that the results are in agreement with alternative methods of catchment nutrient sources assessment, e.g. ratio analysis among land use characteristics and stream water quality and/or direct determination of nutrient export from agricultural land with exclusion of other sources.
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Influence of cationic polymer on water treatment
 Polášek, Pavel ; Pivokonský, Martin ; Knesl, Bohuslav
The paper investigates the best attainable treatability to which a water polluted with a technologically significant concentration of organic matter is treatable by different cation-active polyelektrolytes.
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Velocity gradient - the natural tool for compaction of formed aggregates
 Polášek, Pavel ; Pivokonský, Martin ; Knesl, Bohuslav ; Pivokonská, Lenka
The efficiency of the water treatment process is dependent on the agitation conditions under which the formation of separable suspension takes place.
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The efficiency in NOM removal with the using of aluminium and ferric destabilising reagents
 Pivokonská, Lenka ; Pivokonský, Martin
The contribution deals with the NOM fractions removal during the chemical coagulation with the using of various destabilisation reagents (aluminium sulphate and ferric sulphate).
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