Inhibition of volatile fatty acid production in granular sludge from a UASB reactor
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, cilt.40, sa.3, ss.633-644, 2005 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 40 Sayı: 3
- Basım Tarihi: 2005
- Doi Numarası: 10.1081/ese-200046616
- Dergi Adı: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.633-644
- Anahtar Kelimeler: specific methanogenic activity test, acetate, butyrate, propionate, anaerobic, sludge, VFA inhibition
- Çanakkale Onsekiz Mart Üniversitesi Adresli: Hayır
Özet
Inhibition of volatile fatty acids (VFA), namely acetate, butyrate, and propionate, on the activity of acetoclastic methanogens within a full-scale upflow anaerobic sludge blanket (UASB) reactor was investigated using specific methanogenic activity (SMA) test. SMA tests were carried out at acetate concentrations in a range of 1000-25,000 mg l(-1), butyrate concentrations in a range of 3000-25,000 mg l(-1) and propionate concentrations between 500-10,000 mg l(-1). Maximum potential methane production (PMP) rates were obtained as 389 ml CH4 gTVS(-1).d(-1) at 3000 mg l(-1) acetate concentration, 432 ml CH(4)gTVS(-1).d(-1) at butyrate concentration of 5000 mg l(-1), and 162 mlCH(4) gTVS(-1).d(-1) at 1000 mg l(-1) propionate concentration. App. 50% and 100% inhibition occurred at acetate concentrations of 13,000 mg l(-1) and 25,000 mg l(-1), butyrate concentrations of 15,000 mg l(-1) and 25,000 mg l(-1), and propionate concentrations of 3500 mg l(-1) and 5000 mg l(-1), respectively.