REMOVAL OF HUMIC SUBSTANCES IN WATER BY COAGULATION
Abstract
Basic characteristics of humic substances and their negative influence on water quality and its treatment are described in the paper. Humic substances are unwanted therefore their removal is
necessary. This can be done by coagulation which plays an important role in surface water treatment. This statement was confirmed in laboratory experiments. In order to remove humic substances from surface water of the water reservoir in Hri Ė ová coagulation was used. As the coagulation reagent either ferric sulfate or aluminium sulfate was used as well. An optimum coagulant dosage was soughed. A treatment with ferric sulfate as well as aluminium sulfate can be sufficient if the acceptable limit for humic substances is 2.5 mg/L, our experiments showed. To reach a reduction of humic substance contents below its level of 1 mg/L dosage of 16 mg/L of 1% solution Fe2(SO4)3 (Prefloc), which is the equivalent of 4,47 mg/L Fe3+ was sufficient.
necessary. This can be done by coagulation which plays an important role in surface water treatment. This statement was confirmed in laboratory experiments. In order to remove humic substances from surface water of the water reservoir in Hri Ė ová coagulation was used. As the coagulation reagent either ferric sulfate or aluminium sulfate was used as well. An optimum coagulant dosage was soughed. A treatment with ferric sulfate as well as aluminium sulfate can be sufficient if the acceptable limit for humic substances is 2.5 mg/L, our experiments showed. To reach a reduction of humic substance contents below its level of 1 mg/L dosage of 16 mg/L of 1% solution Fe2(SO4)3 (Prefloc), which is the equivalent of 4,47 mg/L Fe3+ was sufficient.
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Food and Environment Safety by Stefan cel Mare University of Suceava is licensed under a Creative Commons Attribution 4.0 International License.
Online ISSN: 2559 - 6381
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