Assessment of solar drying of Brazilian pulp mill primary sludge
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28140%2F25%3A63587198" target="_blank" >RIV/70883521:28140/25:63587198 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10163-024-02095-2#Sec11" target="_blank" >https://link.springer.com/article/10.1007/s10163-024-02095-2#Sec11</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10163-024-02095-2" target="_blank" >10.1007/s10163-024-02095-2</a>
Alternative languages
Result language
angličtina
Original language name
Assessment of solar drying of Brazilian pulp mill primary sludge
Original language description
Pulp mill sludge is a challenging by-product in wastewater treatment plants (WWTP), due to high moisture content, and poor dewatering characteristics. Solar drying was identified as an appropriate pre-treatment to reduce sludge moisture and enhance its energy efficiency for combustion purposes. Brazil is the world's second-largest pulp producer, and its high intensity of annual solar irradiation makes it a prime candidate for the application of solar sludge drying technology. This study evaluates the main characteristics of primary sludge (PS) from pulp mills at 65% and 95% moisture content. An active passive solar dryer, followed by ASPEN Plus software simulation was used to evaluate drying properties and combustion potential. CO2 emission impact was explored, and the environmental effects of primary sludge combustion after solar drying were estimated. As indicated by the findings, the sludge commenced with a solids concentration of 21%, eventually reaching 95.5%, thereby enhancing its suitability for combustion. From the simulation, a heat rate expenditure in sludge combustion reported 24672 kW and 16295 kW for a solids content of 65% and 95%, respectively. Therefore, employing solar drying before the sludge incineration is crucial for minimizing energy consumption during combustion. Additionally, solar energy being cost-free, offers an opportunity to alleviate environmental harm.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Material Cycles and Waste Management
ISSN
1438-4957
e-ISSN
1611-8227
Volume of the periodical
27
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
111-123
UT code for WoS article
001335346100002
EID of the result in the Scopus database
2-s2.0-85207272806