Design of bio-absorbent systems for the removal of hydrocarbons from industrial wastewater: pilot-plant scale
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F21%3AN0000122" target="_blank" >RIV/60460709:41210/21:N0000122 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2305-6304/9/7/162" target="_blank" >https://www.mdpi.com/2305-6304/9/7/162</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/toxics9070162" target="_blank" >10.3390/toxics9070162</a>
Alternative languages
Result language
angličtina
Original language name
Design of bio-absorbent systems for the removal of hydrocarbons from industrial wastewater: pilot-plant scale
Original language description
The objective of this study was the development and design of a treatment system at a pilot-plant scale for the remediation of hydrocarbons in industrial wastewater. The treatment consists of a combined approach of absorption and biodegradation to obtain treated water with sufficient quality to be reused in fire defense systems (FDSs). The plant consists of four vertical flow columns (bioreactors) made of stainless steel (ATEX Standard) with dimensions of 1,65 x 0,5 m and water volumes of 192,4 L. Each bioreactor includes a holder to contain the absorbent material (Pad Sentec polypropylene). The effectiveness of the treatment system has been studied in wastewater with high and low pollutant loads (concentrations higher than 60,000 mg L-1 of total petroleum hydrocarbons (TPH) and lower than 500 mg L-1 of TPHs, respectively). The pilot-plant design can function at two different flow rates, Q1 (180 L h(-1)) and Q2 (780 L h(-1)), with or without additional aeration. The results obtained for strongly polluted wastewaters showed that, at low flow rates, additional aeration enhanced hydrocarbon removal, while aeration was unnecessary at high flow rates. For wastewater with a low pollutant load, we selected a flow rate of 780 L h(-1) without aeration. Different recirculation times were also tested along with the application of a post-treatment lasting 7 days inside the bioreactor without recirculation. The microbial diversity studies showed similar populations of bacteria and fungi in the inlet and outlet wastewater. Likewise, high similarity indices were observed between the adhered and suspended biomass within the bioreactors. The results showed that the setup and optimization of the reactor represent a step forward in the application of bioremediation processes at an industrial/large scale.
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
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
TOXICS
ISSN
2305-6304
e-ISSN
2305-6304
Volume of the periodical
9
Issue of the periodical within the volume
7
Country of publishing house
CH - SWITZERLAND
Number of pages
16
Pages from-to
1-16
UT code for WoS article
000676983800001
EID of the result in the Scopus database
2-s2.0-85110841419