Anaerobic Digestability and Biogas Production Capacity of Pistachio Processing Wastewater in UASB Reactors

2019-08-01
Gur, E.
Demirer, Göksel Niyazi
Show full item record
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
164
views
0
downloads
High volumes of wastewater with considerable levels of organic and phenolic compounds and solid material are produced during pistachio processing. There is not a commonly adopted treatment technology for the wastes produced during pistachio processing. The objective of this study is to evaluate the anaerobic digestability and biogas production capacity of pistachio processing wastewater in upflow anaerobic sludge blanket (UASB) reactors for the first time in the literature. The results indicated that pistachio processing wastewater can be treated anaerobically with efficiencies comparable with other high-strength agricural wastewaters. The maximum chemical oxygen demand (COD) removal efficiency and methane yield values obtained were 89.77%+/- 2.4% and 332.5 +/- 104.5 mL CH4 g COD-1, respectively, at an organic loading rate (OLR) of 4.56 +/- 0.87 g L-1 day-1. If the annual pistachio processing wastewater produced in Turkey per year (520,000 m3) is digested anaerobically in a UASB reactor, 13,000 t of COD could be eliminated and 3.9 million cubic meters of methane (28,200 mWh of energy) can be produced.
Environmental Engineering, Civil and Structural Engineering, General Environmental Science, Environmental Chemistry
https://hdl.handle.net/11511/54139
JOURNAL OF ENVIRONMENTAL ENGINEERING
Department of Environmental Engineering, Article

Suggestions

Anaerobic treatment of synthetic textile wastewater containing a reactive azo dye
Sen, S; Demirer, Göksel Niyazi (American Society of Civil Engineers (ASCE), 2003-07-01)
In this study, anaerobic treatment of synthetic textile wastewater containing a reactive azo dye, namely, Remazol Brilliant Violet 5R, was investigated. A fluidized bed reactor (FBR) was used in the study. Before the operation period, start-up of the FBR was completed in 128 days with an immobilized microorganism level of 0.069 g volatile suspended solids per g support material (pumice). Anaerobic treatment of synthetic textile wastewater revealed that 300 mg/L dye was removed in the FBR system. Chemical ox...
SORPTION PROPERTIES OF SILICALITE-1 OF PURE SILICA FORM - THE INFLUENCE OF SORPTION HISTORY ON SORPTION KINETICS OF CRITICALLY SIZED MOLECULES
KARSH, H; Çulfaz, Ali; YUCEL, H (Elsevier BV, 1992-07-01)
Sorption properties of silicalite-1 samples of pure silica form for some parafinic and aromatic hydrocarbons of different molecular sizes were investigated. It was observed that sorption rates and apparent equilibrium capacities for critically sized molecules, m-xylene and o-xylene, depend on the sorption history of the sample. Sorption of m- and o-xylene proceeded extremely slowly on fresh samples of silicalite-1, whereas sorption rates of these molecules on silicalite-1 samples that had passed through a p...
Co-treatment of hazardous compounds in anaerobic sewage sludge digesters
Özkan Yücel, Umay Gökçe; Gökçay, Celal Ferdi; Department of Environmental Engineering (2008)
Xenobiotic compounds, which are exclusively man made, are produced in large quantities every year and released to the environment. Besides, anaerobic sludge digestion offers advantage in co-treatment of hazardous substances produced by the industry. The performance of the digesters can be monitored by modeling efforts. In this study, Anaerobic Digestion Model No.1 (ADM1) was calibrated, and validated for full-scale digester, lab-scale digester, and lab-scale digester seeded with totally different anaerobic ...
Biodegradation of 4-chlorophenol by acclimated and unacclimated activated sludge - Evaluation of biokinetic coefficients
ŞAHİNKAYA, ERKAN; Dilek, Filiz Bengü (Elsevier BV, 2005-10-01)
Unacclimated and acclimated activated sludges were examined for their ability to degrade 4-CP (4-chlorophenol) in the presence and absence of a readily growing substrate using aerobic batch reactors. The effects of 4-CP on the p (specific growth rate), COD removal efficiency, Y (yield coefficient), and q (specific substrate utilization rate) were investigated. It was observed that the toxicity of 4-CP on the culture decreased remarkably after acclimation. For example, the IC50 value on the basis of It was f...
Anaerobic-Fed and Sequencing-Batch Treatment of Sugar-Beet Processing Wastes: A Comparative Study
Alkaya, Emrah; Demirer, Göksel Niyazi (Wiley, 2011-03-01)
The aim of this study was to compare a batch-fed continuously mixed anaerobic reactor (FCMR) with an anaerobic sequencing batch reactor (ASBR), in terms of waste stabilization and methane production treating sugar-beet processing wastewater and beet-pulp simultaneously. A reactor was operated as FCMR, which then was operated as an ASBR by changing operational conditions after the steady-state was reached. Although the hydraulic retention time value of the ASBR configuration was lower (8 days) than that of t...
Citation Formats
E. Gur and G. N. Demirer, “Anaerobic Digestability and Biogas Production Capacity of Pistachio Processing Wastewater in UASB Reactors,” JOURNAL OF ENVIRONMENTAL ENGINEERING, pp. 0–0, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54139.
METU IIS - Integrated Information Service open@metu.edu.tr