Microwave pyrolyzed sewage sludge: infuence on soil microbiology, nutrient status, and plant biomass

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26296080%3A_____%2F22%3AN0000071" target="_blank" >RIV/26296080:_____/22:N0000071 - isvavai.cz</a>

Výsledek na webu

<a href="https://chembioagro.springeropen.com/articles/10.1186/s40538-022-00354-8" target="_blank" >https://chembioagro.springeropen.com/articles/10.1186/s40538-022-00354-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s40538-022-00354-8" target="_blank" >10.1186/s40538-022-00354-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microwave pyrolyzed sewage sludge: infuence on soil microbiology, nutrient status, and plant biomass

Popis výsledku v původním jazyce

Background: Sewage sludge (SS) has been considered a potent source of soil nutrients. However, its direct application to agricultural soils have been discouraged owing to its toxic nature. Therefore, conversion and modifcation of SS to decrease its toxicity has resulted in advanced methods. Co-pyrolysis of SS with other amendments is an ideal treatment resulting in an environmentally safe and nutrient rich fnal products with additional properties to sequester carbon. In the present study, a novel biochar was produced through the microwave pyrolysis of SS mixed with zeolite and sawdust. The pyrolysis product was thus characterized for elemental composition, polycyclic aromatic hydrocarbons, via Fourier Transform Infrared Spectroscopy (FTIR), and for its efects on soil microbial characteristics, soil health and plant biomass after soil application. Results: Results revealed that, the SS modifcation resulted in stable product with higher nutrients which further depend on the type and ratio of feedstock used. Its application to soil signifcantly improved soil chemical and microbiological properties and altered lettuce biomass. Conclusions: We concluded that sawdust feedstock promoted nutrient availability in the resulting biochar and induced higher activity of nutrient mineralizing enzymes, whereas zeolite slowed down the release of nutrients from soil and putatively immobilized enzymes. This joint efect of sewage sludge biochar, sawdust and zeolite benefted the plant acquisition of nutrients in comparison with the microbial nutrient uptake. We thus conclude that microwave pyrolyzed SS could be used as a soil enhancer.

Název v anglickém jazyce

Microwave pyrolyzed sewage sludge: infuence on soil microbiology, nutrient status, and plant biomass

Popis výsledku anglicky

Background: Sewage sludge (SS) has been considered a potent source of soil nutrients. However, its direct application to agricultural soils have been discouraged owing to its toxic nature. Therefore, conversion and modifcation of SS to decrease its toxicity has resulted in advanced methods. Co-pyrolysis of SS with other amendments is an ideal treatment resulting in an environmentally safe and nutrient rich fnal products with additional properties to sequester carbon. In the present study, a novel biochar was produced through the microwave pyrolysis of SS mixed with zeolite and sawdust. The pyrolysis product was thus characterized for elemental composition, polycyclic aromatic hydrocarbons, via Fourier Transform Infrared Spectroscopy (FTIR), and for its efects on soil microbial characteristics, soil health and plant biomass after soil application. Results: Results revealed that, the SS modifcation resulted in stable product with higher nutrients which further depend on the type and ratio of feedstock used. Its application to soil signifcantly improved soil chemical and microbiological properties and altered lettuce biomass. Conclusions: We concluded that sawdust feedstock promoted nutrient availability in the resulting biochar and induced higher activity of nutrient mineralizing enzymes, whereas zeolite slowed down the release of nutrients from soil and putatively immobilized enzymes. This joint efect of sewage sludge biochar, sawdust and zeolite benefted the plant acquisition of nutrients in comparison with the microbial nutrient uptake. We thus conclude that microwave pyrolyzed SS could be used as a soil enhancer.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40101 - Agriculture

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)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE

ISSN

2196-5641

e-ISSN

2196-5641

Svazek periodika

9

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

20

Strana od-do

1-20

Kód UT WoS článku

000889517400001

EID výsledku v databázi Scopus

2-s2.0-85142871702