Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
EFFECT OF PRETREATMENTS ON THE SEMICONTINUOUS ANAEROBIC-DIGESTION OF SUNFLOWER HEADS
Date
1992-10-01
Author
POLAT, H
Selçuk, Nevin
SOYUPAK, S
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
201
views
0
downloads
Cite This
The effects of hydraulic retention time and alkali treatment on methane production rate from the semicontinuous anaerobic digestion of 2 % sunflower-head/water mixtures were investigated. The experiments were carried out in laboratory-scale fermenters, fed with 1 liter of untreated, 2 g NaOH/100 g total solids (TS), and 5 g NaOH/100 g TS alkali-treated sunflower-head/water mixtures, respectively, and maintained at 55-degrees-C Digestion experiments were performed for hydraulic retention times of 8, 10, and 15 days. The amount and composition of produced gas were measured until steady state was attained in each run. The steady-state methane production rates were found to decrease with hydraulic retention time and increase with alkali dosage used for pretreatment.
Subject Keywords
Anaerobic digestion
,
Biogas
,
Methane fermentation
,
Biomass
,
Sunflower
URI
https://hdl.handle.net/11511/30992
Journal
ENERGY SOURCES
DOI
https://doi.org/10.1080/00908319208908735
Collections
Graduate School of Natural and Applied Sciences, Article
Suggestions
OpenMETU
Core
Investigation of methane production potential of industrial sludges mixed with domestic sludge during anaerobic digestion
Aksu Bahçeci, Hazal; Sanin, F. Dilek.; Department of Environmental Engineering (2019)
Anaerobic digestion has been established as a sludge stabilization and biogas production method for domestic sludge. However, anaerobic digestion has limited success in industrial sludge applications. In this thesis sludge from two different Organized Industrial Districts (OIDs) and textile industry are mixed with urban wastewater sludge with and without ultrasound pretreatment to investigate their energy production potential by using BMP tests. Sludges were digested alone (A for industrial, D for domestic ...
Application of ADM1 model to a full-scale anaerobic digester under dynamic organic loading conditions
Ozkan-Yucel, U. G.; Gökçay, Celal Ferdi (2010-01-01)
The IWA Anaerobic Digestion Model No. 1 (ADM1) was used to simulate the full-scale anaerobic sludge digester of Ankara Central Wastewater Treatment Plant. The digester is a completely mixed, once through continuous flow type which is being fed with a primary and secondary sludge mixture. The variability and unpredicted nature of the primary sludge composition was expected to challenge the model. A one-year dynamic data set from the digester was used for model calibration and validation in the study. The sta...
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...
BIOGAS PRODUCTION FROM AGRICULTURAL WASTES - SEMICONTINUOUS ANAEROBIC-DIGESTION OF SUNFLOWER HEADS
POLAT, H; Selçuk, Nevin; SOYUPAK, S (1993-01-01)
Data for semicontinuous anaerobic digestion of sunflower heads were obtained in fermentors of 11 of effective volume, maintained at 55-degrees-C Experiments were carried out with a 2% sunflower head-water mixture for hydraulic retention times of 15, 10, and 8 days. Biogas quantities and compositions were measured each day until steady state was achieved. The steady state was achieved after three times of each hydraulic retention time (HRT). Gas productions of 0.180 m3/m3.dig.day with 62% CH4, 0.280 m3/m3.di...
Effect of seeding on the properties of mfi type zeolite membranes
Dinçer, Eser; Kalıpçılar, Halil; Department of Chemical Engineering (2005)
The effect of seeding on the properties of alumina supported MFI membranes was investigated in this study. Membranes were synthesized from clear solutions with a molar batch composition of TPAOH:9.80SiO2:0.025NaOH:0.019Al2O3: 602.27H2O:39.16C2H5OH on bare and seeded alumina supports at 130oC in autoclaves. The amount of seed on the support surface was changed between 0.6 mg/cm2 and 6.9 mg/cm2 by vacuum seeding method, which provided uniform and closely packed seed layers. Membranes were characterized by XRD...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
H. POLAT, N. Selçuk, and S. SOYUPAK, “EFFECT OF PRETREATMENTS ON THE SEMICONTINUOUS ANAEROBIC-DIGESTION OF SUNFLOWER HEADS,”
ENERGY SOURCES
, pp. 391–403, 1992, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30992.