Anaerobic biotransformation and methane generation potential of cheese whey in batch and UASB reactors

Erguder, Tuba Hande; Tezel, Ulaş; Güven, Engin; Demirer, Göksel N.

doi:10.1016/s0956-053x(00)00114-8

Cited by 164 publications

(110 citation statements)

References 23 publications

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“…), the biological treatment is an imperative process to reduce the pollutant load. Because of the high organic content of CW, AD constitutes an excellent treatment method [10]. This fact has also been proved by Spachos and Stamatis [67], through exergy and economic analysis of a modeled CW treatment AD system.…”

Section: Use Of Anaerobic Digestion Systems-production Of Biogas and mentioning

confidence: 67%

“…However, the reagent cost in physicochemical methods is very high and the removal of soluble COD is poor, therefore biological processes are often preferred [8] with anaerobic digestion (AD) being the most suitable for such high organic loading effluents [9]. The major advantages of this process compared to other treatment methods are: low cost, high energy efficiency and process simplicity [10]. Furthermore, this method can achieve an adequate removal of BOD and COD from CW and the methane production is close to the theoretical yield [11].…”

Section: Introductionmentioning

confidence: 99%

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Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects

2012

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Abstract:Cheese whey utilization is of major concern nowadays. Its high organic matter content, in combination with the high volumes produced and limited treatment options make cheese whey a serious environmental problem. However, the potential production of biogas (methane), hydrogen or other marketable products with a simultaneous high COD reduction through appropriate treatment proves that cheese whey must be considered as an energy resource rather than a pollutant. The presence of biodegradable components in the cheese whey coupled with the advantages of anaerobic digestion processes over other treatment methods makes anaerobic digestion an attractive and suitable treatment option. This paper intends to review the most representative applications of anaerobic treatment of cheese whey currently being exploited and under research. Moreover, an effort has been made to categorize the common characteristics of the various research efforts and find a comparative basis, as far as their results are concerned. In addition, a number of dairy industries already using such anaerobic digestion systems are presented.

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Section: Use Of Anaerobic Digestion Systems-production Of Biogas and mentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects

2012

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“…Gas volume was measured by using a displacement of acidified water (pH 2-3) and methane by KOH solution displacement in a serum bottle, as described previously (Ergüder et al 2001). Alkalinity was measured by the direct titration method (Jenkins et al 1983).…”

Section: Chemical Analysesmentioning

confidence: 99%

Effect of temperature on the anaerobic digestion of palm oil mill effluent

Choorit¹,

Wisarnwan²

2007

Electron. J. Biotechnol.

107

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“…6. The biogas production was measured according to the method described previously [21] . The untreated sludge was used as control sample.…”

Section: Resultsmentioning

confidence: 99%

“…The biogas was collected via the side arm (gas sampling port) which was connected to the graduated glass cylinder. Biogas production (volume) was measured by using water displacement method of acidified water (pH 2-3) and its methane content by KOH solution displacement in a serum bottle, as described previously [21] . Table 2 summarizes the effect of microwave irradiation on sludge disintegration.…”

Section: Batch Anaerobic Digestionmentioning

confidence: 99%

Effect of Microwave and Ultrasonic Pretreatments on Biogas Production from Anaerobic Digestion of Palm Oil Mill Effleunt

Wirakarnain¹

2009

American Journal of Engineering and Applied Sciences

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Problem Statement: Oil palm production is a major agricultural industry in Malaysia. In 2006, palm oil mills in Malaysia produced more than 58 million tonnes of Palm Oil Mill Effluent (POME). Existing treatment in a series of open lagoons at high ambient temperatures, results in the uncontrolled production of methane and carbon dioxide, which are both green house gases (GHGs). With the increased worldwide concern on environmentally friendly production processes particularly the emission of methane, it is important to develop an alternative concept for POME treatment. This study elucidates the effects of pre-treatment of palm oil mill effluent by microwave irradiation and ultrasonic on anaerobic digestion. Approach: Effects of pre-treatment on sludge characterisation parameters were monitored. The Soluble Chemical Oxygen Demand (SCOD)/total COD ratio and biodegradability of soluble organic matter increased significantly after both the pre-treatments which indicated an increase in disintegration of the floc structure of the sludge. Three identical bioreactors with working volume of 5 litres were used as anaerobic digesters at 32-35°C. The reactors were separately fed with pre-treated sludge (microwave, ultrasonic and combination of microwave and ultrasonic) and control sludge at different Hydraulic Retention Times (HRT) to check for the production of methane. Results: The maximum SCOD/TCOD ratio reached almost 29% after 30 min of ultrasonic treatment, while it was 45% after 7 min of microwave irradiation. The BOD 5 /SCOD ratio also increased after the pre-treatments suggesting the biodegradability of the soluble organic material increased during the treatment. It was observed that TVFA released was increased after both the treatments, with microwave treatment showing a higher yield of TVFA. Greatest enhancement in methane production was shown by the 3 min microwave plus 10 min ultrasonic treatment. Conclusion:The microwave in combination with ultrasonic would be a rapid and economical method for sludge pre-treatment for enhancement of biogas production.

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Anaerobic biotransformation and methane generation potential of cheese whey in batch and UASB reactors

Cited by 164 publications

References 23 publications

Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects

Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects

Effect of temperature on the anaerobic digestion of palm oil mill effluent

Effect of Microwave and Ultrasonic Pretreatments on Biogas Production from Anaerobic Digestion of Palm Oil Mill Effleunt

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