Influent with Particulate Substrate, Clean, Innocuous and Sustainable Solution for Bulking Control and Mitigation in Activated Sludge Process

This research studies the incidence of type substrate, soluble or particulate, in emergence, development, and inhibition bulking activated sludge systems. It was evaluated using volume index (SVI), mixing liquor-suspended solids (MLSS), microscopic analysis biomass, effluent suspended (ESS). In first experiment, four sequencing batch reactors (SBRs) were fed with substrate at a fixed mass, while mass particulate varied, as those (saccharose mass/flour mass) ratios 3:1, 3:2, 3:3 3:4., deficit ranging from 20 to 30% compared ratio recommended. The SBRs have similar MLSS, IVL, ESS. From day 30, 80 90%, influents 1/1 1/2 until 48 days. present IVL between 600 730 mL/g ESS 370 440 mg/L; unlike 1/3 1/4, they 170 185 mL/g, 260 270 mg/L. favorable effect matter is categorical. second set experiments, two studied: SBR 1 saccharose, 2 flour; there lack nutrients causing SBRs. Once nutrient deficiency condition changed 11 excess, after 22 days, SVI 190 360 mg/L, MLSS 2000 mg/L for saccharose; influent flour, an 100 4000 shows faster more consistent recovery substrate. Therefore, proposal add substrate-like flour active plants facing bulking. clean, innocuous sustainable alternative processes that use chemical reagents.