Volatile Fatty Acid Production from Organic Fraction of Municipal Solid Waste Through Anaerobic Acidogenic Digestion

Download

index.pdf

Date

2009-09-01

Author

Dogan, Eylem
Demirer, Göksel Niyazi

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

248
views

0
downloads

There are numerous studies on two-phase anaerobic digestion of municipal solid waste (MSW) in the literature. Yet, in the majority of these studies, applied organic loading rates (OLR) were relatively low. This study differs from those in the literature in terms of high OLR application and focuses on the optimization of the acidification phase. Effect of high OLRs and pH values were investigated and optimum operational conditions for acidification were determined. Although conversion of particulate organics to soluble chemical oxygen demand ( COD) was achieved in the reactors, total COD values remained the same. Various types of organic acids were produced in the reactors and the selective production of organic acids in the anaerobic acidogenesis process was possible by controlling the organic loading rate and pH. Optimum OLR and pH values were determined as 15 g volatile solid (VS)/L . day and 5.5 +/- 0.1, respectively, for the MSW composition investigated.

Subject Keywords

Acidification, Anaerobic, Organic loading rate, Organic fraction of municipal solid waste, pH

URI

https://hdl.handle.net/11511/57857

Journal

ENVIRONMENTAL ENGINEERING SCIENCE

DOI

https://doi.org/10.1089/ees.2009.0062

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

ORGANIC ACID PRODUCTION FROM THE ORGANIC FRACTION OF MUNICIPAL SOLID WASTE AND COW MANURE IN LEACHING BED REACTORS Bayramoğlu, Tuba Hande (2016-11-01) This study was carried out to (1) investigate the potential of in-vessel solid-state anaerobic acidogenic co-digestion of high solids containing substrates, namely organic fraction of municipal solid waste (OFMSW) and cow manure and (2) examine the feasibility of using leaching bed reactors (LBR) for hydrolysis/liquefaction and acidification of OFMSW and cow manure mixtures for maximum total volatile fatty acid (VFA) and alcohol production. Results indicated that hydrolysis efficiency of 2025% of was achiev...
Organic acid production from the organic fraction of municipal solid waste in leaching bed reactors Doğan, Evrim; Demirer, Göksel Niyazi; Department of Environmental Engineering (2006) This study was carried out to evaluate the potential of high-rate anaerobic digestion of high-solids organic fraction of municipal solid waste (OFMSW) for the production of organic acids and alcohols in leaching bed reactors (LBRs). For this purpose, two different experimental set-ups, namely Set-1 and Set-2, were operated. In the Set-1, only OFMSW without paper was studied in two identical LBRs, whereas, four identical LBRs, fed with OFMSW with paper and cow manure in different proportions, were operated i...
Anaerobic biogasification of undiluted dairy manure in leaching bed reactors Demirer, Göksel Niyazi; Chen, S. (Elsevier BV, 2008-01-01) Dry anaerobic digestion of high solids animal manure is of increasing importance since conventional slurry digestion is not an effective system for these manures. The investment costs for large-size reactors, costs for heating these reactors, handling, dewatering, and the disposal of the digested residue decrease the benefits of conventional slurry anaerobic digestion for high solids animal manure. Even though leaching bed reactors (LBR) constitute a promising option for dry anaerobic biogasification of ani...
Anaerobic mesophilic co-digestion of sugar-beet processing wastewater and beet-pulp in batch reactors Alkaya, Emrah; Demirer, Göksel Niyazi (2011-03-01) In this study, biochemical methane potential (BMP) assay was conducted to investigate the effect of waste mixing and F/M ratio on the co-digestion of wastewater and beet-pulp, in addition to the digestion of the wastes separately. In the studied F/M range (0.51–2.56 g COD/g VSS), observed treatment efficiencies (63.7–87.3% COD removal and 69.6–89.3% VS reduction) were indications of high biodegradability for both wastewater and beet-pulp, which decreased with increasing F/M. It was evident that the extent o...
Anaerobic digestion of dairy manure with enhanced ammonia removal Uludag-Demirer, S.; Demirer, Göksel Niyazi; Frear, C.; Chen, S. (2008-01-01) Poor ammonia-nitrogen removal in methanogenic anaerobic reactors digesting animal manure has been reported as an important disadvantage of anaerobic digestion (AD) in several studies. Development of anaerobic processes that are capable of producing reduced ammonia-nitrogen levels in their effluent is one of the areas where further research must be pursued if AD technology is to be made more effective and economically advantageous. One approach to removing ammonia from anaerobically digested effluents is the...

Citation Formats

E. Dogan and G. N. Demirer, “Volatile Fatty Acid Production from Organic Fraction of Municipal Solid Waste Through Anaerobic Acidogenic Digestion,” ENVIRONMENTAL ENGINEERING SCIENCE, pp. 1443–1450, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57857.