Abstract
AbstractThe main aim of the present study is to determine the optimum operating conditions for different feed compositions with less irreversible membrane fouling in an activated sludge followed by membrane process (AS-MP). In this regard, three different wastewaters with different BOD5/COD ratios (0.83 for soft drink, 0.63 for pineapple fruit juice and 0.36 for amoxicillin) as an index of biodegradability were selected. The AS-MP system was operated with biomass concentration of 7000–8000 mg/l and different hydraulic retention times (HRTs) in the range of 4–20 h. The optimal HRT was decreased as BOD5/COD ratio was increased. In order to investigate fouling behavior of membranes in the AS-MP, a commercial polyvinylidene fluoride (PVDF) microfiltration (MF) membrane and high-performance synthetic ZnFe2O4/SiO2 embedded polyether sulfone (PES) ultrafiltration (UF) membrane were applied. As a result, the UF membrane indicated the highest flux recovery ratio (FRR) for pineapple fruit juice wastewater relative to the other wastewaters. Soft drink wastewater had the maximum permeability and FRR for MF membrane due to low turbidity of the feed and low interaction with MF membrane composition, whereas this wastewater showed a lower permeability and FRR in the UF membrane, implying an effective interaction between the residual soluble microbial products and the UF membrane composition. Both membranes showed almost the same performance for amoxicillin wastewater.
Publisher
Springer Science and Business Media LLC
Subject
Water Science and Technology
Reference55 articles.
1. Abbasi S, Mirghorayshi M, Zinadini S, Zinatizadeh AA (2020) Novel single continuous electrocoagulation process for treatment of licorice processing wastewater: optimization of operating factors using RSM. Process Saf Environ Prot 134:323–332
2. Abou-Elela SI, El-Khateeb MA (2015) Performance evaluation of activated sludge process for treating pharmaceutical wastewater contaminated with β-lactam antibiotics. J Ind Pollut Cont 31(1):1–5
3. American Public Health Association (APHA) (1999) Standard methods for the examination of water and wastewater, New York
4. Amini M, Younesi H, Zinatizadeh AA, Najafpour G (2013) Determination of optimum conditions for dairy wastewater treatment in UAASB reactor for removal of nutrients. Bioresour Technol 145:71–79
5. Amor C, Lucas MS, Pirra AJ, Peres JA (2012) Treatment of concentrated fruit juice wastewater by the combination of biological and chemical processes. J Environ Sci Health Part A 47(12):1809–1817
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