Keywords: Coagulation, sedimentation, coagulant
, removal e fficiency, BOD5, COD.
Two techniques are widely used to determine optimum dosage of coagulants
, namely, specific equipment in zeta-potential measurements and jar tests (Joo, Choi, & Park, 2000).
The comparison of the usefulness of the studied coagulants
in the removal of pollutants from water after oxidisation of Fe(II) with potassium (VII) manganate, just as in the case of the treatment of raw and aerated waters, confirmed the greatest effectiveness of coagulant
which was prehydrolyzed with PAX XL60.
The main objective of the study are: Treatment of Textile Dying industry effluents with Cotton fiber to optimize the coagulation process for various coagulants
i.e., Ferrous Sulphate (FeSO4.7H2O), Lime (CaO) and Alum (KAl(SO4)2.12H2O) in terms of process conditions, including coagulant
dose, pH and settling time, to apply the advanced oxidation process including Ozonation process, and Fenton alone and in combination to treat the effluent, and to determine the effects of process conditions such as Ozone dose, initial dye contents, iron catalyst concentration, Hydrogen Peroxide (H2O2) concentration, pH treatment time and settling time on the overall efficiency of these processes.
In addition to the Clearlogx technology, H2O Innovation will purchase Clearlogx's business related to the sale of coagulants
for conventional and membrane filtration systems.
(2007) showed that flocks' sedimentation rate with the use of PACL is more than the two other coagulants
, alum and ferric chloride.
Determination of optimum dosage of coagulants
for different turbidities (5.67, 12.7, 15.32, and 31.35 NTU) underwent Jar test (See Table 2).
grandis and indigo dyes' effluents using kaolin as coagulant
The application of natural coagulants
is based on their traditional use in tropical, rural areas.
"Selection of alum and polyaluminum coagulants
:principles and applications" Journal of Water Supply: Research and Technology-AQUA, 121-141.
Similarly, additional methods for treatment of water after being clarified with natural coagulants
have not yet been explored.
Bench-scale jar testing was done to evaluate the alternative coagulants
. Jar testing was performed throughout fiscal year 2010 to encompass seasonable water qualities including very cold water.