Investigation of the effects of blast furnace slag ratio, total solid, and pH on anaerobic digestion: modeling and optimization by using response surface methodology
Küçük Resim Yok
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Heidelberg
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, it is aimed to optimize the anaerobic digestion (AD) system in which blast furnace slag (BFS) is used as an additive by using the response surface methodology (RSM). For this purpose, BFS ratio (0.5-3%), pH (5-9), and initial total solid (TS) (6-10%) were selected as input parameters and a model was successfully developed in RSM with Box-Behnken (BB) design for optimization of cumulative biogas production (mL), biogas yield (mL/g VS), CH4 content (%), volatile solids (VS) reduction (%), and chemical oxygen demand (COD) removal (%). Coefficient values (R-2) obtained from analysis of variance (ANOVA) were highly significant for cumulative biogas production, biogas yield, CH4 content, VS reduction, and COD removal as 0.94, 0.95, 0.96, 0.94, and 0.94, respectively. RSM results showed that optimum conditions for the maximum output values were obtained as 2.01%, 9 and 10% for BFS ratio, pH, and TS, respectively. Corresponding to these conditions, the maximum biogas production, biogas yield, CH4, VS reduction, and COD removal were 15,420 mL, 543.23 mL/g VS, 76.30%, 61.12%, and 70.85%, respectively.
Açıklama
Anahtar Kelimeler
Anaerobic digestion, Additive, Optimization, Response surface methodology
Kaynak
Biomass Conversion and Biorefinery
WoS Q Değeri
Q2
Scopus Q Değeri
Q3
Cilt
11
Sayı
5
