Changes in availability of Ca, K, Mg, P and S in sewage sludge as affected by pyrolysis temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F20%3A81899" target="_blank" >RIV/60460709:41210/20:81899 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjmnsyA0pvuAhXTCRAIHfpLAZsQFjACegQIAhAC&url=https%3A%2F%2Fwww.agriculturejournals.cz%2FpublicFiles%2F605_2019-PSE.pdf&usg=AOvVaw3hIhKqmkHrN2t790Enbci9" target="_blank" >https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjmnsyA0pvuAhXTCRAIHfpLAZsQFjACegQIAhAC&url=https%3A%2F%2Fwww.agriculturejournals.cz%2FpublicFiles%2F605_2019-PSE.pdf&usg=AOvVaw3hIhKqmkHrN2t790Enbci9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/605/2019-PSE" target="_blank" >10.17221/605/2019-PSE</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Changes in availability of Ca, K, Mg, P and S in sewage sludge as affected by pyrolysis temperature

Popis výsledku v původním jazyce

In this study, anaerobically stabilised SS was pyrolysed in a laboratory fixed-bed reactor at 220, 320, 420, 520, and 620 C for 30 min in the N2 atmosphere. Pyrolysis resulted in a higher total content of all studied nutrients in BCs. Aromaticity and hydrophobicity of BCs increased with increasing temperatures while solubility decreased. Relative availability (% from total content) of nutrients in BCs decreased in order: Ca - Mg, K - S - P. Pyrolysis at 220 C produced acidic BC with a higher content of acetic acid-extractable nutrients compared to non-pyrolysed control. An increment in pH and a significant drop in the content of available Ca, Mg, K and S were found at temperature 320 C. Pyrolysis at 320 C increased the content of available P by 28 % compared to non-pyrolysed SS. At the temperature of 420 C and higher, available contents of all studied nutrients were lower than in non-pyrolysed SS.

Název v anglickém jazyce

Changes in availability of Ca, K, Mg, P and S in sewage sludge as affected by pyrolysis temperature

Popis výsledku anglicky

In this study, anaerobically stabilised SS was pyrolysed in a laboratory fixed-bed reactor at 220, 320, 420, 520, and 620 C for 30 min in the N2 atmosphere. Pyrolysis resulted in a higher total content of all studied nutrients in BCs. Aromaticity and hydrophobicity of BCs increased with increasing temperatures while solubility decreased. Relative availability (% from total content) of nutrients in BCs decreased in order: Ca - Mg, K - S - P. Pyrolysis at 220 C produced acidic BC with a higher content of acetic acid-extractable nutrients compared to non-pyrolysed control. An increment in pH and a significant drop in the content of available Ca, Mg, K and S were found at temperature 320 C. Pyrolysis at 320 C increased the content of available P by 28 % compared to non-pyrolysed SS. At the temperature of 420 C and higher, available contents of all studied nutrients were lower than in non-pyrolysed SS.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Plant, Soil and Environment

ISSN

1214-1178

e-ISSN

1805-9368

Svazek periodika

66

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

143-148

Kód UT WoS článku

000530701700001

EID výsledku v databázi Scopus

2-s2.0-85090707970