Effects of Moringa Peregrina and Ferric Chloride (FeCl₃) on Water Treatment Sludge Dewatering

Ramtin Mazaheri¹, Mostafa Tizghadam Ghazani² and Abolghasem Alighardashi²

¹Civil and Environmental Engineering, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, A.C., Tehran, Iran.

²Faculty member of Civil, Water and Environmental Engineering, Shahid Beheshti University, A.C., Tehran, Iran.

Corresponding Author E-mail: ramtinmazaheri1296@gmail.com

DOI : http://dx.doi.org/10.13005/bbra/2709

ABSTRACT: In the present study, an active component of Moringa peregrine (MP) was used in comparison with ferric chloride (FeCl₃) for the conditioning of water treatment sludge. The comparison was based on dewatering characteristics of the conditioned sludge determined by capillary suction time (CST), specific resistance to filtration (SRF), tests of time of filtration (TTF) and sludge cake moisture content. The results indicated that MP showed relatively comparable conditioning effect as ferric chloride. Sludge conditioned with ferric chloride, showed better results than MP. According to CST, SRF and tests of time of filtration (TTF) and sludge cake moisture content results, optimum dose for MP, and ferric chloride was 100 ml/l. From the results of the study it could be concluded that MP alone could be effectively used and replace ferric chloride for dewatering of water treatment sludge.

KEYWORDS: CST; Ferric Chloride; Moringa Peregrine; Sludge Cake Moisture; SRF; TTF

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