Mineralization of olive mill wastewater under hydrothermal conditions
Başlık:
Mineralization of olive mill wastewater under hydrothermal conditions
Yazar:
Ersanlı, Çağlar, author.
Yazar Ek Girişi:
Fiziksel Tanımlama:
ix, 44 leaves: illustrarions, charts;+ 1 computer laser optical disc.
Özet:
The purpose of this study is to reduce the total organic carbon (TOC) and chemical oxygen demand (COD) concentrations, color, the concentration of total phenolic compounds of olive mill wastewater (OMW) by hydrothermal degradation in subcritical water medium with and without using hydrogen peroxide (H2O2). In addition to this, investigation of effect of reaction temperature, reaction time and H2O2 concentration on the reduction of TOC, COD, color and total phenolic content; and controlling the generation of secondary pollutants during the reactions are other objectives of this study. Hydrothermal degradation reactions were performed at 150-250 ºC of reaction temperature, 30-120 minutes of reaction duration with 0-100 mM H2O2. Experimental design and statistical analysis (ANOVA) were carried out by Minitab. The main product of partial mineralization of OMW was acetic acid. Increase in the reaction temperature and time resulted in increasing TOC reduction rates significantly. On the other hand, presence of H2O2 did not affect the removal efficiency of TOC concentration significantly because of competition of hydroxyl free radicals by H2O2 and target molecule (OMW). The best yield (31.65%) of TOC reduction was achieved with a reaction at 250 ºC, 120 min and without using H2O2.
Yazar Ek Girişi:
Tüzel Kişi Ek Girişi:
Tek Biçim Eser Adı:
Thesis (Master)--İzmir Institute of Technology: Chemical Engineering.
İzmir Institute of Technology: Chemical Engineering--Thesis (Master).
Elektronik Erişim:
Access to Electronic Versiyon.