Abstract:
The MO seeds, known for their coagulant effect were tested in dam water purification and
wastewater treatment using coagulation-flocculation process. An evaluation via the optimisation
of the influencing factors on this technique has been covered by using statistical methods such as
RSM and artificial intelligence such as ANN. The dehulled and hulled MO seeds cake powder
were used as coagulant, and the dose of coagulants has been fluctuated alongside fast and slow
mixing of the jar test. Settling time has been tested too. All RSM and ANN models have been
effective in the process description, with better performance of ANN models with R2 0.96 at the
IW and 0,99 at the OW. Both preparations of MO seeds cake powder were efficient in promoting
the coagulation-flocculation process with better performance of the hulled seeds category. The
waste of MO seeds peeling was recovered by synthesis of crystalline cellulosic nanoparticles
(NPs). The synthetized NPs have homogenous porous structure, with a large specific surface
area, and large porosity giving it a high adsorption capacity. The obtained NPs have been tested
in methylene bleu adsorption (MB), and the process was found to be affected by the MB initial
concentration, the NPs dosage and the pH of MB solution. The adsorption process fitted well to
both pseudo first and second order model
