Removal of total and volatile solids in ozone pretreated anaerobic digesters

Date

2018-06-23

Author

Tuncay, Sera
İçgen, Bülent

Metadata

Show full item record

Item Usage Stats

166
views

0
downloads

Anaerobic digestion is a sludge stabilization process used for the conversion of organic materials in the sludge into methane rich biogas by anaerobic microorganisms. In order to improve anaerobic digestion, pretreatment methods that results in higher degradation rates, removal efficiencies and biogas production are applied. When compared to other pretreatment methods, ozone pretreatment is more advantageous because it is a strong oxidant, disinfectant and also costeffective when used in small amounts. Typical control parameters for anaerobic digestion are total and volatile solids that denote organic and inorganic content of the sludge. Thus, removal of those solids is an important indicator for the performance of anaerobic digestion with ozone pretreatment. In this study, therefore, the effect of different ozone dosages in an anaerobic digester on the removal efficiencies of total and volatile solids was examined.

URI

https://hdl.handle.net/11511/79426
http://web.hitit.edu.tr/dosyalar/yayinlar/gungorkarakas@hititedutr150920182T9F1O2Q.pdf

Conference Name

International Ecology Symposium,, (19 - 23 Haziran 2018,)

Collections

Department of Environmental Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Effect Of Volatile Fatty Acids On Methane Production İn Ozone Pre-Treated Anaerobic Digesters Tuncay, Sera; İçgen, Bülent (null; 2018-09-07) Anaerobic digestion (AD) is a biological wastewater sludge treatment process which transforms organic matter into methane-rich biogas. AD involves four key steps as hydrolysis, acidogenesis, acetogenesis and methanogenesis, respectively. In hydrolysis, a rate-limiting step, large organic polymers are broken down into simpler monomers. AD with ozone pre-treatment is used for the acceleration of this rate limiting step by converting solids into more easily biodegradable matter. As a result, sludge biodegradab...
Investigation of biogas production potential of three different sludges after thermal hydrolysis Arı Akdemir, Ece.; Sanin, F. Dilek.; Department of Environmental Engineering (2019) Biogas production through anaerobic digestion using biological sludge is one the sustainable approaches. Hydrolysis is the first and rate limiting step during anaerobic digestion. For enhancement of hydrolysis of sludge, it is feasible to investigate pre-treatment before anaerobic digestion process. In this research, biogas and methane production potentials of municipal wastewater treatment plants sludge, membrane bioreactor sludge and organized industrial district sludge were investigated using small scale...
Two-stage anaerobic digestion of ozonated sewage sludge predominantly took over by acetotrophic methanogens with increased biogas and methane production Akcakaya, Merve; Tuncay, Sera; İçgen, Bülent (2022-06-01) Ozonation of sewage sludge prior to single-stage anaerobic digestion (SAD) has been reported to increase biogas and/or methane production. However, no studies have evaluated the impact of ozone pre-treatment on two-stage anaerobic digestion (TAD) of sewage sludge over the production of these renewable fuels. Present study, therefore, aimed at investigating the impact of 0.06 g O3/g TSS ozone-pretreated sewage sludge on the productivity of mesophilic semi-batch lab-scale TAD and on its methanogenic consortiu...
Behavior of sulfate-reducing bacteria in single-stage anaerobic digesters pretreated with ozone Tuncay, Sera; Akcakaya, Merve; İçgen, Bülent (null; 2019-10-28) Anaerobic digestion is a solid stabilization process commonly used at both municipal and industrial wastewater and sludge treatment. Anaerobic digesters convert the microbiological cells and other solids generated during the treatment process to a stable end product and also produce methane-rich biogas as an energy source through the degradation of organic matter. Microbial population dynamics involved in anaerobic digestion are not well-studied yet due to the requirement of an extensive investigation of mi...
Denitrifying anaerobic methane oxidation (DAMO) cultures: Factors affecting their enrichment, performance and integration with anammox bacteria. Harb, Rayaan; Laçin, Dilan; Subaşı, Irmak; Bayramoğlu, Tuba Hande (2021-06-19) The recently discovered process, denitrifying anaerobic methane oxidation (DAMO), links the carbon and nitrogen biogeochemical cycles via coupling the anaerobic oxidation of methane to denitrification. The DAMO process, in this respect, has the potential to mitigate the greenhouse effect through the assimilation of dissolved methane. Denitrification via methane oxidation rather than organic matter, provides a new perspective to performing this once thought to be well established process. The two main specie...

Citation Formats

S. Tuncay and B. İçgen, “Removal of total and volatile solids in ozone pretreated anaerobic digesters,” presented at the International Ecology Symposium,, (19 - 23 Haziran 2018,), Kastamonu, Türkiye, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/79426.