Psychrophilic anaerobic treatment of sewage: Biomethane potential, kinetics and importance of inoculum selection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F18%3A43917582" target="_blank" >RIV/60461373:22320/18:43917582 - isvavai.cz</a>

Výsledek na webu

<a href="https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=F68QSW3gXUIS5qMGtOs&page=1&doc=3" target="_blank" >https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=F68QSW3gXUIS5qMGtOs&page=1&doc=3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jclepro.2018.07.134" target="_blank" >10.1016/j.jclepro.2018.07.134</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Psychrophilic anaerobic treatment of sewage: Biomethane potential, kinetics and importance of inoculum selection

Popis výsledku v původním jazyce

Anaerobic sewage treatment has been proposed as sustainable sanitation technology with the potential to be energy positive. However, there are very few works dealing with anaerobic degradability (i.e. biomethane potential – BMP) of sewage. Until now, no authors systematically studied anaerobic psychrophilic degradation of sewage in sufficient detail, i.e. in batch experiments. In this study, six sewage samples of various origin and quality were tested via BMP experiments with three different samples of inoculum (both adapted and non-adapted), to elucidate the principle kinetics and obtain fundamental engineering data. The anaerobic biodegradability of sewage at 15 °C varied from 50 to 75%, with the average methane yield 0.22 ± 0.03 m3 kg−1 (CH4, CODadded). According to Monod-based calculations, all sewage samples behaved as two component substrate, while no correlation of biodegradability with different raw sewage quality was observed. The same rate constant (rmax) was found for all tested sewage samples. But, rmax was greatly dependent on inoculum source. This study provides a fundamental dataset to understand and predict psychrophilic anaerobic sewage utilization. With this knowledge, novel wastewater treatment plant layouts can be designed even in mild/cold climates as well as already existing facilities intensified in terms of energy optimization and recovery.

Název v anglickém jazyce

Psychrophilic anaerobic treatment of sewage: Biomethane potential, kinetics and importance of inoculum selection

Popis výsledku anglicky

Anaerobic sewage treatment has been proposed as sustainable sanitation technology with the potential to be energy positive. However, there are very few works dealing with anaerobic degradability (i.e. biomethane potential – BMP) of sewage. Until now, no authors systematically studied anaerobic psychrophilic degradation of sewage in sufficient detail, i.e. in batch experiments. In this study, six sewage samples of various origin and quality were tested via BMP experiments with three different samples of inoculum (both adapted and non-adapted), to elucidate the principle kinetics and obtain fundamental engineering data. The anaerobic biodegradability of sewage at 15 °C varied from 50 to 75%, with the average methane yield 0.22 ± 0.03 m3 kg−1 (CH4, CODadded). According to Monod-based calculations, all sewage samples behaved as two component substrate, while no correlation of biodegradability with different raw sewage quality was observed. The same rate constant (rmax) was found for all tested sewage samples. But, rmax was greatly dependent on inoculum source. This study provides a fundamental dataset to understand and predict psychrophilic anaerobic sewage utilization. With this knowledge, novel wastewater treatment plant layouts can be designed even in mild/cold climates as well as already existing facilities intensified in terms of energy optimization and recovery.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20801 - Environmental biotechnology

Projekt

<a href="/cs/project/TH01021100" target="_blank" >TH01021100: Recyklace energie ze splaškových odpadních vod v anaerobních membránových reaktorech v prostředí střední Evropy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Cleaner Production

ISSN

0959-6526

e-ISSN

—

Svazek periodika

199

Číslo periodika v rámci svazku

20 October 2018

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

93-100

Kód UT WoS článku

000444358400011

EID výsledku v databázi Scopus

2-s2.0-85053120544