Effects of pretreatment methods on solubilization of beet-pulp and bio-hydrogen production yield

Date

2011-01-01

Author

Ozkan, Leyla
Bayramoğlu, Tuba Hande
DEMİRER, GÖKSEL NİYAZİ

Metadata

Show full item record

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

Item Usage Stats

212
views

0
downloads

Sugar processing wastewater and beet-pulp are two major waste streams of sugar-beet processing plants. Contrary to wastewater, beet-pulp is generally used as animal feed in cattle-raising industry. However, it can serve as a substrate for bio-hydrogen production which corresponds to a higher valorization of beet-pulp. Moreover, pretreatment of lignocellulosic materials like beet-pulp is needed in order to improve overall energy efficiency and enable economic feasibility of bio-hydrogen production. Therefore, the effect pretreatment methods (alkaline, thermal, microwave, thermal-alkaline and microwave-alkaline) on bio-hydrogen production from sugar beet-pulp through dark fermentation were investigated in this study. Reactors pretreated with alkaline, microwave-alkaline and thermal-alkaline methods yielded significant solubilization of beet-pulp compared to others. Therefore, in the second phase of the study, they were used to pretreat the beet-pulp which was then subjected to dark fermentation for bio-hydrogen production. Maximum bio-hydrogen production yield of 115.6 mL H-2/g COD was observed in reactor which contained alkaline pretreated beet-pulp. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.

Subject Keywords

Sugar-beet processing wastes, Anaerobic digestion, Pretreatment, Bio-hydrogen

URI

https://hdl.handle.net/11511/41221

Journal

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

DOI

https://doi.org/10.1016/j.ijhydene.2010.10.006

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

Effects of operational parameters on the settling properties of activated sludge Sürücü, Gülerman; Soyupak, Salçuk (Informa UK Limited, 1989-5) Settling properties of activated sludge typically establish the performance and the cost of biological wastewater treatment plants, and they are considerably affected by the solids concentration of the sludge and the mean cell residence time of the system. In this work, effects of mean cell residence time of the system and solids concentration of sludge on the settling properties of activated sludge were studied. By statistical analysis of the laboratory data, mathematical expressions were suggested to e...
Effect of ozone pretreatment on biogas production and microbial community structure of two-stage anaerobic digesters Akçakaya, Merve; İçgen, Bülent; Department of Environmental Engineering (2021-2-09) The amount of sludge produced in treatment plants is increasing depending on the population growth and water consumption. Anaerobic digestion (AD) is a widely used sludge stabilization method in wastewater treatment plants, as it provides volume reduction and methane-rich biogas production. In single-stage anaerobic digestions, the process fails due to volatile fatty acid accumulation and pH changes. To solve this problem, two-stage anaerobic digestion (TSAD) process has emerged t...
Effects of ultrasound pretreatment and anaerobic digestion on the energy potential of sludge Çelebi, Emrehan Berkay; Sanin, Faika Dilek; Aksoy, Ayşegül; Department of Environmental Engineering (2015) The by-product of wastewater treatment, sludge, is generated in tons everyday all around the world. As environmental regulations in Turkey are becoming stricter during the European Union adaptation period, the previously wide-spread disposal method of landfilling the sludge will not be applicable. Instead, dried sludge is expected to be used in revenue generating methods like land application or combustion. Combustion can be thought of as more beneficial as it uses sludge as an energy source. However, it is...
Effect of high hydrostatic pressure on seed germination, microbial quality, anatomy-morphology and physiological characteristics of garden cress (Lepidium sativum) seedlings İŞLEK, Cemil; Altuner, Ergin Murat; Ceter, Talip; Alpas, Hami (Informa UK Limited, 2013-06-01) High hydrostatic pressure is a non-thermal food processing technology that is found to increase the percentage of germination, decrease the germination time and improve the microbial quality of seeds. In this study, pressures of 100-400MPa for 10min at 30 degrees C are used to compare the percentage of germination, the microbial quality of seeds, chlorophyll a and b, and total phenolic compounds concentrations in seedlings, and the anatomy-morphology characteristics of garden cress. Enhanced reductions of t...
Effect of ozone pretreatment on methane production and microbial community structure of single-stage anaerobic digesters Tuncay, Sera; İçgen, Bülent; Department of Environmental Engineering (2021-2-09) Increasing amount of sludge produced by wastewater treatment plants poses many problems in environmental, public health and economic aspects. Anaerobic digestion (AD), the most common sludge stabilization method, is used to reveal energy potential of sludge as methane-rich biogas. Various pretreatment methods are applied to enhance AD efficiency by facilitating the rate limiting hydrolysis step. Ozone pretreatment is a remarkable method for improving methane production, sludge reduction and pathogen removal...

Citation Formats

L. Ozkan, T. H. Bayramoğlu, and G. N. DEMİRER, “Effects of pretreatment methods on solubilization of beet-pulp and bio-hydrogen production yield,” INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, pp. 382–389, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41221.