High-rate anaerobic treatment of digestate using fixed film reactors
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Dosyalar
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The effluent stream of the anaerobic digestion processes, the digestate, accommodates high residual organic content that needs to be further treated before discharge. Anaerobic treatment of digestate would not only reduce the residual organic compounds in digestate but also has a potential to capture the associated biogas. High-rate anaerobic reactor configurations can treat the waste streams using lower hydraulic retention times which requires less footprint opposed to the conventional completely stirred tank reactors. This study investigated the high-rate anaerobic treatment performance and the associated biogas capture from the digestate of a manure mixture composed of 90% laying hen and 10% cattle manures in fixed-film reactors. The results indicated that it was possible to reduce total chemical oxygen demand content of the digestate by 57-62% in 1.3-1.4 days of hydraulic retention time. The corresponding biogas yields obtained were in the range of 0.395-0.430 L-biogas/gVS(added) which were found to be comparable to many raw feedstocks. Moreover, significant total phosphorus reduction (36-47%) and greenhouse gas capture (over 14.5-18.1 tCO(2)e/d per m(3) digestate) were also recorded in the anaerobic fixed-film reactors. (C) 2019 Elsevier Ltd. All rights reserved.
Açıklama
Ulgudur, Nilufer/0000-0003-3410-0598; Demirer, Goksel/0000-0001-6030-2041
WOS: 000483405400073
PubMed: 31284204
WOS: 000483405400073
PubMed: 31284204
Anahtar Kelimeler
Digestate, Management, High-rate, Anaerobic, Treatment, Biogas
Kaynak
Environmental Pollution
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
252
