Color and COD Removal from Textile Effluent Using Alum and FeCl3 Coagulation
DOI:
https://doi.org/10.31185/ejuow.Vol11.Iss1.429Keywords:
color, Remoal, COD, Alum, FeCL3, CoagulantionAbstract
Textile dyeing companies use large amounts of water and chemicals during the
dyeing process. Large amounts of sewage containing hazardous materials have
been released into a nearby water bodies, posing a threat to environmental
sustainability. The aim of this research was to find out how the type and dosage
of coagulant affect the removal of colour and COD from industrial wastewater
containing dye using ferric chloride and Alum. The efficiency of these
coagulants was determined using the jar test, which examined the percentage
from dye removal in different wastewaters, coagulant dose, initial dye
concentration, mixing velocity, and sedimentation duration. The highest
decolorization efficiencies for FeCl3 and Alum coagulants were 81% and 81%,
respectively. Rremoval COD was 46% and 42% for FeCl3 and Alum,
respectively. Where pH 11 and coagulant doses of 20 and 30 mg/L for FeCl3 and
alum, respectively, the coagulants performed better. The results of the study
revealed that FeCl3 is more successful than Alum in removing color and COD
from industrial effluents containing Congo red dye. Because the dose of
coagulant used is less. On the other hand, the physicochemical method can be
used as a successful pre-treatment method before subsequent treatment of the
partially stabilized leachate.
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