High-rate anaerobic-aerobic biological treatment of a wastewater from a Fischer-Tropsch process

M.  Beccari; M. Majone; Davide Dionisi; A. Donadio; E.N. D'Addario; R. Sbardellati

High-rate anaerobic-aerobic biological treatment of a wastewater from a Fischer-Tropsch process

M. Beccari, M. Majone, Davide Dionisi, A. Donadio, E.N. D'Addario, R. Sbardellati

Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

This study investigates the anaerobic-aerobic treatment of an industrial wastewater from
a Fischer-Tropsch process. The considered synthetic wastewater has an overall
concentration of 28 gCOD/L, mainly due to alcohols. The continuous anaerobic process
was studied in a fixed-bed reactor under mesophilic conditions (35°C). Gradual start-up,
starting from 3.4 gCOD/L/day, was used in order to overcome potential inhibition from
long-chain alcohols (>C6). Then, the process was operated successfully by feeding with
the wastewater, with neither pretreatment nor dilution, up to an organic load rate of 20
gCOD/L/day (hydraulic retention time 1.4 days). 96% COD removal and full
conversion of removed COD into methane was obtained (about one third coming from
hydrogenophilic methanogenesis). By considering a potential of 200 tCOD/day to be
treated, that would also correspond to a net production of electric energy of about 8*107
kWh/year. The effluent of the anaerobic reactor contained only acetic and propionic
acids, that were easily removed under aerobic conditions.

Original language	English
Pages (from-to)	451-458
Number of pages	8
Journal	Chemical Engineering Transactions
Volume	14
Publication status	Published - 2008
Event	Industrial Biotechnology International Conference - Naples, Italy Duration: 8 Jun 2008 → 11 Jun 2008

Cite this

@article{f88670d6dadb44ad8cf85e4e9ea089f6,

title = "High-rate anaerobic-aerobic biological treatment of a wastewater from a Fischer-Tropsch process",

abstract = "This study investigates the anaerobic-aerobic treatment of an industrial wastewater froma Fischer-Tropsch process. The considered synthetic wastewater has an overallconcentration of 28 gCOD/L, mainly due to alcohols. The continuous anaerobic processwas studied in a fixed-bed reactor under mesophilic conditions (35°C). Gradual start-up,starting from 3.4 gCOD/L/day, was used in order to overcome potential inhibition fromlong-chain alcohols (>C6). Then, the process was operated successfully by feeding withthe wastewater, with neither pretreatment nor dilution, up to an organic load rate of 20gCOD/L/day (hydraulic retention time 1.4 days). 96% COD removal and fullconversion of removed COD into methane was obtained (about one third coming fromhydrogenophilic methanogenesis). By considering a potential of 200 tCOD/day to betreated, that would also correspond to a net production of electric energy of about 8*107kWh/year. The effluent of the anaerobic reactor contained only acetic and propionicacids, that were easily removed under aerobic conditions. ",

author = "M. Beccari and M. Majone and Davide Dionisi and A. Donadio and E.N. D'Addario and R. Sbardellati",

note = "This research was carried out under the contract 122/2006 between the Department of Chemistry and Enitecnologie S.p.A (now Eni S.p.A). The kind assistance of ACEAATO2 staff at the “Roma Nord” WWTP is gratefully acknowledged. ; Industrial Biotechnology International Conference ; Conference date: 08-06-2008 Through 11-06-2008",

year = "2008",

language = "English",

volume = "14",

pages = "451--458",

journal = "Chemical Engineering Transactions",

issn = "2283-9216",

publisher = "AIDIC-Italian Association of Chemical Engineering",

}

TY - JOUR

T1 - High-rate anaerobic-aerobic biological treatment of a wastewater from a Fischer-Tropsch process

AU - Beccari, M.

AU - Majone, M.

AU - Dionisi, Davide

AU - Donadio, A.

AU - D'Addario, E.N.

AU - Sbardellati, R.

N1 - This research was carried out under the contract 122/2006 between the Department of Chemistry and Enitecnologie S.p.A (now Eni S.p.A). The kind assistance of ACEAATO2 staff at the “Roma Nord” WWTP is gratefully acknowledged.

PY - 2008

Y1 - 2008

N2 - This study investigates the anaerobic-aerobic treatment of an industrial wastewater froma Fischer-Tropsch process. The considered synthetic wastewater has an overallconcentration of 28 gCOD/L, mainly due to alcohols. The continuous anaerobic processwas studied in a fixed-bed reactor under mesophilic conditions (35°C). Gradual start-up,starting from 3.4 gCOD/L/day, was used in order to overcome potential inhibition fromlong-chain alcohols (>C6). Then, the process was operated successfully by feeding withthe wastewater, with neither pretreatment nor dilution, up to an organic load rate of 20gCOD/L/day (hydraulic retention time 1.4 days). 96% COD removal and fullconversion of removed COD into methane was obtained (about one third coming fromhydrogenophilic methanogenesis). By considering a potential of 200 tCOD/day to betreated, that would also correspond to a net production of electric energy of about 8*107kWh/year. The effluent of the anaerobic reactor contained only acetic and propionicacids, that were easily removed under aerobic conditions.

AB - This study investigates the anaerobic-aerobic treatment of an industrial wastewater froma Fischer-Tropsch process. The considered synthetic wastewater has an overallconcentration of 28 gCOD/L, mainly due to alcohols. The continuous anaerobic processwas studied in a fixed-bed reactor under mesophilic conditions (35°C). Gradual start-up,starting from 3.4 gCOD/L/day, was used in order to overcome potential inhibition fromlong-chain alcohols (>C6). Then, the process was operated successfully by feeding withthe wastewater, with neither pretreatment nor dilution, up to an organic load rate of 20gCOD/L/day (hydraulic retention time 1.4 days). 96% COD removal and fullconversion of removed COD into methane was obtained (about one third coming fromhydrogenophilic methanogenesis). By considering a potential of 200 tCOD/day to betreated, that would also correspond to a net production of electric energy of about 8*107kWh/year. The effluent of the anaerobic reactor contained only acetic and propionicacids, that were easily removed under aerobic conditions.

UR - https://www.aidic.it/IBIC2008/

UR - https://www.aidic.it/IBIC2008/webpapers/44Beccari.pdf

M3 - Conference article

VL - 14

SP - 451

EP - 458

JO - Chemical Engineering Transactions

JF - Chemical Engineering Transactions

SN - 2283-9216

T2 - Industrial Biotechnology International Conference

Y2 - 8 June 2008 through 11 June 2008

ER -

High-rate anaerobic-aerobic biological treatment of a wastewater from a Fischer-Tropsch process

Abstract

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