Akademik Veri Yönetim Sistemi
Bulletin of Environment, Pharmacology and Life Sciences, cilt.9, sa.9, ss.50-60, 2020 (Hakemli Dergi)
The aim of this study is to examine the relationship the effective parameters on acidification and solubility efficiency in manure co-fermentation process at different temperatures (20-55°C), HRT (2-10 day), pH (4-10) ve OLR (10-90 gCOD/l- d). The maximum acidification yield was found by applying 70 gCOD/l-day with pH 8 and 38C for acidification yield of 193 gCOD/kgVS.The maximum solubility value was 308 gCOD/kgVS at pH 10 with same conditions. Acetic, butyric and propionic acid were primary fermentation products, while the maximum value was 70.3% at pH 10 as the acidification degree. When the trend analysis of acidification yield according to effective parameters was made, it was determined that the relationship between HRT and acidification yield at high concentrations is decreased compared to other parameters. When acidification yield was analyzed in principal component analysis; While OLR, pH and Temperature have a common effect, it has been determined that the HRT parameter had no effect on the process. To solubilization which is another investigation parameter, is possible to say that pH and OLR have some effect on.
Keywords: Anaerobic, fermentation, manure,VFA, PCA, soluble COD