TERMOKİMYASAL ÖN İŞLEM İLE ATIK AKTİF ÇAMURUN PARÇALANMASI

Serkan ŞAHİNKAYA

Article Details

TERMOKİMYASAL ÖN İŞLEM İLE ATIK AKTİF ÇAMURUN PARÇALANMASI

Authors:

Serkan ŞAHİNKAYA

Publisher:

Bursa Uludağ University

Main Topics:

Applied physics

Journal:

Uludağ University Journal of The Faculty of Engineering 2018 Vol.23 Issue 2, pp.1-12

Document Type:

Article

Publication Date:

8/2018

Document Language:

Turkish

Document ID (Org No.):

2000629644

Frequency:

Tri-annual

eISSN:

2148-4155

pISSN:

2148-4147

Abstract:

 


The rate limiting step in the digestion of the waste
active sludge is hydrolysis the stage. Thermal pre-treatment and chemical
sludge disintegration methods can be used to shorten the biochemical hydrolysis
process and increase the digester capacity. In this study, the disintegration
of waste activated sludge via thermal pre-treatment, chemical oxidation using
potassium permanganate and thermo-chemical disintegration method (which is a
simultaneous combination of thermal pre-treatment and chemical oxidation) was
investigated. Optimizations of these methods were carried out depend on the
increases in chemical oxidation demand, carbohydrate and protein concentrations
in the dissolved phase. In addition, biochemical methan production tests were
performed under the optimized conditions in order to determine the influences
of these methods on biogas production. On the other hand, the change in
dewaterability of waste sludge was investigated by parameters of turbidity and
capillary suction time (CST). As a result, the optimum temperature for thermal
pre-treatment is 100 °C and the optimum concentration for chemical oxidation
with KMnO4 is 1000 mg l-1; the optimum conditions for the
thermo-chemical pre-treatment method were determined to be a concentration of
250 mg l-1 potassium permanganate and a temperature of 100 °C. In
these conditions, the thermo-chemical pre-treatment was found to increase
biogas production by 38% and methane production by 34% compared to anaerobic
digestion of the raw (unpre-treated) sludge. As a result, thermo-chemical
pre-treatment has been found to solubilize the sludge more efficiently and to
improve the anaerobic digestion of sludge even at lower chemical doses compared
to chemical oxidation method.






 

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Article Details

TERMOKİMYASAL ÖN İŞLEM İLE ATIK AKTİF ÇAMURUN PARÇALANMASI

Authors: Serkan ŞAHİNKAYA

Publisher: Bursa Uludağ University

Main Topics: Applied physics

Journal: Uludağ University Journal of The Faculty of Engineering 2018 Vol.23 Issue 2, pp.1-12

Document Type: Article

Publication Date: 8/2018

Document Language: Turkish

Document ID (Org No.): 2000629644

Frequency: Tri-annual

eISSN: 2148-4155

pISSN: 2148-4147

Issues

Authors:

Serkan ŞAHİNKAYA

Publisher:

Bursa Uludağ University

Main Topics:

Applied physics

Journal:

Uludağ University Journal of The Faculty of Engineering 2018 Vol.23 Issue 2, pp.1-12

Document Type:

Article

Publication Date:

8/2018

Document Language:

Turkish

Document ID (Org No.):

2000629644

Frequency:

Tri-annual

eISSN:

2148-4155

pISSN:

2148-4147