Detail publikačního výsledku

Winery Wastewater Treatment: Synergy Between Model and Experiment for Air Stripping Unit

MIKLAS, V.; TOUŠ, M.; MÁŠA, V.

Originální název

Winery Wastewater Treatment: Synergy Between Model and Experiment for Air Stripping Unit

Anglický název

Winery Wastewater Treatment: Synergy Between Model and Experiment for Air Stripping Unit

Druh

Abstrakt

Originální abstrakt

Wineries produce large volumes of wastewater contaminated with ethanol, carboxylic acids, solids etc. Experiments with a multi-stage flash (MSF) evaporator showed encouraging results in the wastewater volume reduction. An obstacle to overcome is the high chemical oxygen demand (COD) due to the amount of ethanol present in the distillate stream. This work proposes a stripping unit as a solution and shows how to maximize the synergy of process modeling and experiments. The first experiment was designed using a preliminary model, while the experimental results confirmed the validity of the model and helped identify some potential improvements. The validated model showed the need to use the air at elevated temperatures in order to achieve sub-1,000 mg/l COD. This was confirmed by the second experiment when multiple passes through the experimental stripping column, higher flowrate (4,500 m3 air / m3 water) and an air temperature of 45 °C were sufficient to reduce COD below 1,000 mg/l.

Anglický abstrakt

Wineries produce large volumes of wastewater contaminated with ethanol, carboxylic acids, solids etc. Experiments with a multi-stage flash (MSF) evaporator showed encouraging results in the wastewater volume reduction. An obstacle to overcome is the high chemical oxygen demand (COD) due to the amount of ethanol present in the distillate stream. This work proposes a stripping unit as a solution and shows how to maximize the synergy of process modeling and experiments. The first experiment was designed using a preliminary model, while the experimental results confirmed the validity of the model and helped identify some potential improvements. The validated model showed the need to use the air at elevated temperatures in order to achieve sub-1,000 mg/l COD. This was confirmed by the second experiment when multiple passes through the experimental stripping column, higher flowrate (4,500 m3 air / m3 water) and an air temperature of 45 °C were sufficient to reduce COD below 1,000 mg/l.

Klíčová slova

winery wastewater, chemical oxygen demand, air stripping, process modeling, ethanol

Klíčová slova v angličtině

winery wastewater, chemical oxygen demand, air stripping, process modeling, ethanol

Autoři

MIKLAS, V.; TOUŠ, M.; MÁŠA, V.

Rok RIV

2022

Vydáno

06.02.2022

Nakladatel

University of Thessaly

Místo

Volos, Greece

ISSN

2653-8911

Periodikum

Book of Abstracts of the Energy, Sustainability and Climate Change Conference

Svazek

8

Číslo

1

Stát

Řecká republika

Strany od

102

Strany počet

1

URL

http://escc.uth.gr/wp-content/uploads/2022/02/ESCC-2021_Book-of-Abstracts.pdf

BibTex

@misc{BUT176694,
  author="Václav {Miklas} and Michal {Touš} and Vítězslav {Máša}",
  title="Winery Wastewater Treatment: Synergy Between Model and Experiment for Air
Stripping Unit",
  year="2022",
  journal="Book of Abstracts of the Energy, Sustainability and Climate Change Conference",
  volume="8",
  number="1",
  pages="1",
  publisher="University of Thessaly",
  address="Volos, Greece",
  issn="2653-8911",
  url="http://escc.uth.gr/wp-content/uploads/2022/02/ESCC-2021_Book-of-Abstracts.pdf",
  note="Abstract"
}