Treatment of Effluent of Upflow Anaerobic Sludge Blanket Bioreactor for Water Reuse

The low-pressure reverse osmosis (LPRO) process is a recent development of (RO) technology for the reduction in RO energy consumption and operation cost. goal this study was to investigate performance LPRO processes treatment reuse effluent discharged from brewery upflow anaerobic sludge blanket bioreactors (UASB). In study, three different commercially available membranes were tested evaluate water quality that can be achieved under operational pretreatment conditions. It found filtration considerably affected by conditions selection processes. ultrafiltration (UF) control pressure essential mitigating membrane fouling, which could caused Ca2+ associated precipitates organic gelation, UASB effluent. Water analyses showed an integrated + UF achieve characterized concentrations 10.4–12.5 mg/L chemical oxygen demand (COD), 1.8–2.1 total nitrogen (TN), 1.3–1.8 ammonia (NH3-N) 0.8–1.2 phosphorus (TP). further improved adding granular activated carbon (GAC) adsorption between processes, reduced concentration COD 7–10 those TN, TP, NH3-N below 1 mg/L. For UF, GAC (retention time 4 hrs), LPRO, respectively, overall removal efficiencies 89.6–93.7%, 94.5–96.7%, 99.3–99.1% 99.3–99.4%; TN 73.0–78.2%, 89.2–97.2%, 97.1–98.2% 94.3–99.7%; TP 29.3–46.2%, 77.0–95.4%, 95.9–97.6z% 98.0–98.3%. This both are effective treating wastewater toward standards set United States Environmental Protection Agency (US EPA). Therefore, results would help answer whether treat meet requirements standards.