J 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

DOKULILOVÁ, Tereza; Tomáš VÍTĚZ ORCID; Jan CHOVANEC; Robert ROUŠ; Monika VÍTĚZOVÁ a Ivan KUSHKEVYCH

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.