Membrane bioreactors for treatment of saline wastewater contaminated by hydrocarbons (diesel fuel): An experimental pilot plant case study

Mannina, Giorgio; Cosenza, Alida; Trapani, Daniele Di; Capodici, Marco; Viviani, Gaspare

doi:10.1016/j.cej.2016.01.107

Cited by 64 publications

(39 citation statements)

References 39 publications

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“…This result is in good agreement with previous studies that outlined the high sensitivity of autotrophic species to salt variations (Mannina et al, 2016d). For further details on the respirometric results as well as on biokinetic/stoichiometric parameters, the reader is addressed to literature (Mannina et al, 2016b). (Fig.…”

Section: Biomass Respiratory Activitysupporting

confidence: 81%

“…For further details about the system performance as well as the nitrogen balance, the reader is referred to literature (Mannina et al, 2016b). …”

Section: Pilot Plant Performancesmentioning

confidence: 99%

“…However, no inhibiting substance like ATU was added and ammonium chloride (NH 4 Cl) was spiked to enhance the exogenous OUR values and the calculation of the biokinetic parameters. For further details on the adopted protocol, the reader is referred to literature (Mannina et al, 2016b). Fig.…”

Section: Evaluation Of Biomass Respiratory Activitymentioning

confidence: 99%

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Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons

Mannina

Cosenza

Trapani

et al. 2016

Bioresource Technology

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Section: Biomass Respiratory Activitysupporting

confidence: 81%

“…For further details about the system performance as well as the nitrogen balance, the reader is referred to literature (Mannina et al, 2016b). …”

Section: Pilot Plant Performancesmentioning

confidence: 99%

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Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons

Mannina

Cosenza

Trapani

et al. 2016

Bioresource Technology

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“…The CST values were almost constant and slightly affected by the MLSS concentration, with average values of 15.27, 17.27, 15.07 and 18.93 s for the anaerobic, anoxic, aerobic and MBR compartment, respectively. Furthermore, the low SRF values also confirmed the good sludge filtration properties, with average values for the different compartment close to 4 Â 10 À12 m kg À1 , significantly lower compared to what obtained by the same authors in previous experiences, when treating saline wastewater contaminated by hydrocarbons (Mannina et al, 2016b). Moreover, the activated sludge filterability was mostly influenced by the specific EPS Bound concentration (i.e., referred to MLSS concentration).…”

Section: Sludge Dewaterabilitysupporting

confidence: 70%

Bacterial community structure and removal performances in IFAS-MBRs: A pilot plant case study

Mannina

Capodici

Cosenza

et al. 2017

Journal of Environmental Management

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a b s t r a c tThe paper reports the results of an experimental campaign carried out on a University of Cape Town (UCT) integrated fixed-film activated sludge (IFAS) membrane bioreactor (MBR) pilot plant. The pilot plant was analysed in terms of chemical oxygen demand (COD) and nutrients removal, kinetic/stoichiometric parameters, membrane fouling and sludge dewaterability. Moreover, the cultivable bacterial community structure was also analysed.The pilot plant showed excellent COD removal efficiency throughout experiments, with average value higher than 98%, despite the slight variations of the influent wastewater. The achieved nitrification efficiency was close to 98% for most of the experiments, suggesting that the biofilm in the aerobic compartment might have sustained the complete nitrification of the influent ammonia, even for concentrations higher than 100 mg L À1 . The irreversible resistance due to superficial cake deposition was the mechanism that mostly affected the membrane fouling. Moreover, it was noticed an increase of the resistance due pore blocking likely due to the increase of the EPS Bound fraction that could derive by biofilm detachment.The bacterial strains isolated from aerobic tank are wastewater bacteria known for exhibiting efficient heterotrophic nitrificationeaerobic denitrification and producing biofilm.

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“…In detail, there are some key parameters which strongly influence the sludge dewaterability: sludge retention time (SRT), extracellular polymeric substances (EPS), soluble microbial products (SMP), sludge salt content and presence of filamentous bacteria [14][15][16][17]. More in detail, activated sludge flocs are mainly composed by water, biomass and EPS, that are highly charged polymers interacting as a gel with water molecules [18]. The EPS can play a significant role in binding organic and inorganic matter enhancing the attachment of bacteria to surfaces [4].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Waste activated sludge dewaterability: comparative evaluation of sludge derived from CAS and MBR systems

Capodici

Mannina

Torregrossa

2016

Desalination and Water Treatment

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Sludge dewatering represents, nowadays, one of the greatest operational cost to wastewater treatment cycle. Physical-chemical and biological parameters are recognized to influence the sludge dewaterability. However, many authors agree in identifying the sludge origin as one of the main aspect involved in sludge dewaterability. Indeed, the sludge origin such as the processes involved in liquid-solid separation, seriously affect the sludge features. In order to elucidate the key factors influencing the dewaterability process, the present work is aimed to investigate the influence of the treatment plant lay-out on sludge dewaterability. The analyzed sludge samples were derived from four conventional activated sludge and two membrane bioreactor wastewater treatment plants. Experimental investigation was focused to highlight difference in sludge dewaterability derived from the application of European Standards adopted for sludge characterization. The achieved results confirmed the complexity of the inter-relationships between many factors affecting the sludge dewaterability.

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Membrane bioreactors for treatment of saline wastewater contaminated by hydrocarbons (diesel fuel): An experimental pilot plant case study

Cited by 64 publications

References 39 publications

Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons

Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons

Bacterial community structure and removal performances in IFAS-MBRs: A pilot plant case study

Waste activated sludge dewaterability: comparative evaluation of sludge derived from CAS and MBR systems

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