Pilot-Scale Study of the Anaerobic Membrane Bioreactor Process for Treatment of a Salad Dressing Wastewater

Christian, Scott; Grant, Shannon; Wilson, Dwain; McCarthy, Peter; Mills, Dale

doi:10.2175/193864708788808555

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The AnMBR effluent BOD and COD results during the first year corresponded very well with the effluent concentrations observed during the pilot study. Christian et al, 2008, observed that the AnMBR pilot effluent BOD and COD concentrations ranged from 8 mg/l to 27 mg/l and 200 mg/l to 900 mg/l, respectively. The AnMBR pilot average influent BOD and COD concentrations were observed to be 17,600 and 33,200 mg/l, respectively.…”

Section: Figure 7 -Anmbr Effluent (Left) and Anmbr Sludge (Right)mentioning

confidence: 99%

The Anaerobic Membrane Bioreactor (ANMBR) Process and the First Year of Full-Scale ANMBR Operation Treating Salad Dressing Wastewater

Christian¹,

Grant²,

Wilson³

et al. 2010

proc water environ fed

Self Cite

View full text Add to dashboard Cite

An existing anaerobic process, upgraded to an anaerobic membrane bioreactor (AnMBR) system, was commissioned in July 2008 to treat wastewater produced from salad dressings and barbeque sauce. Upgrading to an AnMBR provided additional capacity for flow and organic load beyond the original anaerobic system design parameters. Lack of space and superior economics made the conversion to an AnMBR an attractive option.The first year of AnMBR operation has shown that the system is very suitable for treating this high-strength industrial wastewater; it provides COD, BOD, and TSS removals in excess of 99.5 percent. Throughout the first year of operation, the AnMBR effluent BOD and TSS concentrations were consistently less than 25 mg/l and 2 mg/l, respectively, while influent BOD and TSS concentrations averaged 18,000 and 11,500 mg/l, respectively. The AnMBR system provides superior performance and a very low rate of membrane fouling, with the aid of biogas scour across the membrane surface. The change in transmembrane pressure was negligible over the first twelve months of operation (actually, there has been no transmembrane pressure change at the time of writing -20 months after start-up) and has required no citric acid cleaning events while operating at a membrane flux rate ranging from 0.05 to 0.10 m 3 /m 2 -d (design flux of 0.10 m 3 /m 2 -d) and a MLSS concentration up to 45,000 mg/l.Upgrading the existing anaerobic treatment process to an AnMBR was considered the best choice. It has reduced operating and maintenance costs, provides stable operation, produces excellent quality anaerobic effluent, and removes the strain on the existing aerobic process. Biogas produced in the anaerobic system is used to heat the anaerobic system, as well as heat for the wastewater treatment facility.

show abstract

Section: Figure 7 -Anmbr Effluent (Left) and Anmbr Sludge (Right)mentioning

confidence: 99%

The Anaerobic Membrane Bioreactor (ANMBR) Process and the First Year of Full-Scale ANMBR Operation Treating Salad Dressing Wastewater

Christian¹,

Grant²,

Wilson³

et al. 2010

proc water environ fed

Self Cite

View full text Add to dashboard Cite

show abstract

“…Food processing wastewater was treated by an anaerobic membrane pilot reactor (Christian et al, 2008). Two tests were conducted; one treated supernatant recycle stream from the existing anaerobic treatment process, and the second test treated the raw wastewater directly.…”

Section: Membranesmentioning

confidence: 99%

“…A pilot-scale study of an anaerobic MBR treatment of salad dressing/barbeque sauce manufacturer's wastewater was undertaken to determine if the anaerobic MBR would be an economic choice in the treatment of such wastes (Christian et al, 2008). The reactor was operated under three conditions at mesophilic temperature.…”

Section: Treatability Of Food Food Processing Wastesmentioning

confidence: 99%