FULL-SCALE CO-COMPOSTING OF SEWAGE SLUDGE AND WASTE MATERIALS AT VARIOUS MIXING PROPORTIONS AND AERIATION CONDITIONS TO PRODUCE STABILIZED COMPOST

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F24%3A10256031" target="_blank" >RIV/61989100:27710/24:10256031 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

FULL-SCALE CO-COMPOSTING OF SEWAGE SLUDGE AND WASTE MATERIALS AT VARIOUS MIXING PROPORTIONS AND AERIATION CONDITIONS TO PRODUCE STABILIZED COMPOST

Popis výsledku v původním jazyce

Two different sewage sludges were commercially co-composted with wood chips and grass to determine their conversion potential and the extent that it is affected by various operational parameters. A blend of three different SS streams composted more efficiently in terms of temperature than a single SS stream when co-treated with a bulking agent. WCh facilitated materials to obtained a high temperature over the sanitation limit and concurrently to acquire a high decomposition rate for a long period. Further increasing the fraction of WCh in mixture had an insignificant effect on the decomposition rate of organics in SS. The presence of grass in a mixture had a negative influence on composting temperature that retained below the sanitization limits during the entire process. Aeration led to an increment in temperature but the increase remained at levels lower than 20 oC throughout the trials. Concentration of heavy metals in all mixtures was sufficiently reduced with composting regardless of the SS type, mixing ratio, the use of a secondary organic substrate and aeriation.

Název v anglickém jazyce

FULL-SCALE CO-COMPOSTING OF SEWAGE SLUDGE AND WASTE MATERIALS AT VARIOUS MIXING PROPORTIONS AND AERIATION CONDITIONS TO PRODUCE STABILIZED COMPOST

Popis výsledku anglicky

Two different sewage sludges were commercially co-composted with wood chips and grass to determine their conversion potential and the extent that it is affected by various operational parameters. A blend of three different SS streams composted more efficiently in terms of temperature than a single SS stream when co-treated with a bulking agent. WCh facilitated materials to obtained a high temperature over the sanitation limit and concurrently to acquire a high decomposition rate for a long period. Further increasing the fraction of WCh in mixture had an insignificant effect on the decomposition rate of organics in SS. The presence of grass in a mixture had a negative influence on composting temperature that retained below the sanitization limits during the entire process. Aeration led to an increment in temperature but the increase remained at levels lower than 20 oC throughout the trials. Concentration of heavy metals in all mixtures was sufficiently reduced with composting regardless of the SS type, mixing ratio, the use of a secondary organic substrate and aeriation.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20700 - Environmental engineering

Projekt

<a href="/cs/project/QK21010300" target="_blank" >QK21010300: Optimalizace technologie úpravy kalů z komunálních čistíren odpadních vod s ohledem na jejich chemické a mikrobiální složení a schopnost zadržovat vodu s cílem jejich bezpečného využití na zemědělském a lesním půdním fondu</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Venice 2024 : 10th International Symposium on Energy from Biomass and Waste : 25-27 November 202, Hotel Monaco &amp; Grand Canal, Venice, Italy

ISBN

978-88-6265-045-8

ISSN

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e-ISSN

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Počet stran výsledku

13

Strana od-do

1-13

Název nakladatele

IWWG - International Waste Working Group

Místo vydání

Padova

Místo konání akce

Benátky

Datum konání akce

25. 11. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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