Abstract:
Textile industries produce effluents that are highly complex and are characterized by high BOD,
suspended solid dissolved solid, turbidity etc. In this study, coagulation using Moringa oleifera
seed was used as a natural coagulant to reduce the suspended and colloidal molecules responsible
for turbidity of the waste water. The seed powder was used as a natural coagulant to reduce
turbidity, BOD, TDS. The test was carried out with textile effluent with conventional jar test
apparatus. Various results were obtained by varying the amount of dose, PH and coagulation
time. The coagulant dose used was 6gm, 7.2gm and 8.4 gm. The PH value is 5.5,7 and 8.5 and
the mixing time also varied from 15 minute to 45 minute using a 15 minute interval. The
optimum coagulant dose for reducing the turbidity, BOD, TS TDS was determined. Hence, it
was observed that the highest dose which is 7.2 gm and the optimum mixing time and optimum
PH values are 30 minute and 5.5 respectively. At the optimum point 75% of waste the
turbidity,76% of the total solid,69% of the total dissolved solid, and 69% of the BOD of the
waste water sample were removed using the Moringa oleifera seed coagulants.