2018
Primary and Activated Sludge Biogas Production: Effect of Temperature
DOKULILOVÁ, Tereza; Tomáš VÍTĚZ; Jan CHOVANEC; Robert ROUŠ; Monika VÍTĚZOVÁ et al.Základní údaje
Originální název
Primary and Activated Sludge Biogas Production: Effect of Temperature
Autoři
Vydání
Acta Univ. Agric. Silvic. Mendelianae Brun. 2018, 1211-8516
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10606 Microbiology
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/18:00102358
Organizační jednotka
Přírodovědecká fakulta
EID Scopus
Klíčová slova anglicky
sewage sludge;primary sludge;activated sludge;anaerobic stabilization;biogas production;temperature
Změněno: 5. 4. 2020 14:25, doc. Ivan Kushkevych, Ph.D.
Anotace
V originále
Sewage sludge management is a problem of growing importance. Anaerobic sewage sludge stabilization is commonly used technology, where organic matter contained in primary and activated sewage sludge is converted into biogas, so both, pollution control and energy recovery can be achieved. The paper deals with the effect of process temperature (36 °C, 42 °C and 50 °C) on biogas production and quality during anaerobic stabilization of primary and activated sewage sludge generated during purifying process in low loaded activated sludge process. Primary and activated sewage sludge samples were taken at the wastewater treatment plant Brno, Czech Republic. The characteristics of sludges (dry matter and organic dry matter content, pH, conductivity, redox potential) were dermined. Biogas production and quality was measured using 3 anaerobic systems, each of 8 batch anaerobic fermenters, at the 3 different temperature conditions 36 °C, 42 °C and 50 °C. Hydraulic retention time was 20 days. Hypothesis, which predicts that the fermentation of primary and activated sludge provides dissimilar methane quantity and quality under different temperature conditions (36 °C, 42 °C and 50 °C), was partially confirmed. Temperature 42 °C significantly increased biogas production from primary sewage sludge (by 60 % in comparison with production at 36 °C). For activated sewage sludge samples no significant influence of temperature on the biogas production was observed.