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Purification of Volatile Organic Compounds in Channeled Ventilation Pipes at the Sysav Water Treatment Plant for Hazardous Waste

Wiktorsson, Erik LU (2022) KETM05 20221
Chemical Engineering (M.Sc.Eng.)
Abstract
Several channeled emissions at the Sysav water treatment plant for hazardous waste as of December 2021 exceed permitted levels of unknown volatile organic compounds (VOCs) stated in the European Parliament councils’ directives 2010/75/EU.
A range of possible treatment methods are briefly discussed before zeolite adsorption, and thermal regeneration followed by catalytic combustion is decided to be the method of greatest feasibility and is the subject of further investigation.
The zeolite suggested is faujasite zeolite of high silica content (Faujasite (Y) HY901) due to its large pore sizes and hydrophobic nature.
The catalyst suggested is a manganese oxide (Mn3O4) due to its lower cost than that of noble-metal catalysts, as catalyst... (More)
Several channeled emissions at the Sysav water treatment plant for hazardous waste as of December 2021 exceed permitted levels of unknown volatile organic compounds (VOCs) stated in the European Parliament councils’ directives 2010/75/EU.
A range of possible treatment methods are briefly discussed before zeolite adsorption, and thermal regeneration followed by catalytic combustion is decided to be the method of greatest feasibility and is the subject of further investigation.
The zeolite suggested is faujasite zeolite of high silica content (Faujasite (Y) HY901) due to its large pore sizes and hydrophobic nature.
The catalyst suggested is a manganese oxide (Mn3O4) due to its lower cost than that of noble-metal catalysts, as catalyst poisons present may result in rapid deterioration of the catalyst.
A process flow chart is presented, which includes two parallel zeolite beds that operate in shifts, followed by catalytic combustion. Heat recovery is possible, and a heat exchanger is implemented after combustion to heat the regenerative air flow.
The process is modeled as steady-state, and results include general dimensions as well as capital and operational costs. Calculated with the software EconExpert, the resulting capital costs as estimated are 12,-800,000 SEK. Operational costs are approximately 200,-000 SEK/year after two years.
For future work, it is of crucial importance to determine what VOCs are present for accurate modeling and predictions. (Less)
Popular Abstract (Swedish)
Flyktiga organiska ämnen (Volatile organic compounds, eller VOCs) är en
samlingsbeteckning som omfattar alla kolväten vars kokpunkt understiger 250 °C och uppgår
till cirka 2000 ämnen. Dessa ämnen förekommer brett inom all kemisk industri och är ofta
resultatet av flyktiga lösningsmedel som sprider sig i luften. Vid längre mänsklig exponering
av VOCs kan en myriad av hälsokomplikationer uppstå, och det är därför viktigt att hålla
koncentrationer och utsläpp av dessa så låga som möjligt. Syftet med denna rapport är att
utreda för vilken metod som är bäst lämpad att implementera på vattenreningen vid Sysavs
avdelning för farligt avfall, där koncentrationerna vid flera tillfällen i december 2021
överskred tillåtna halter.
Please use this url to cite or link to this publication:
author
Wiktorsson, Erik LU
supervisor
organization
course
KETM05 20221
year
type
H2 - Master's Degree (Two Years)
subject
keywords
VOC, Zeolite, Catalytic combustion, Sysav, Chemical Engineering
language
English
id
9081631
date added to LUP
2022-06-08 14:19:38
date last changed
2022-06-08 14:19:38
@misc{9081631,
  abstract     = {{Several channeled emissions at the Sysav water treatment plant for hazardous waste as of December 2021 exceed permitted levels of unknown volatile organic compounds (VOCs) stated in the European Parliament councils’ directives 2010/75/EU. 
A range of possible treatment methods are briefly discussed before zeolite adsorption, and thermal regeneration followed by catalytic combustion is decided to be the method of greatest feasibility and is the subject of further investigation. 
The zeolite suggested is faujasite zeolite of high silica content (Faujasite (Y) HY901) due to its large pore sizes and hydrophobic nature. 
The catalyst suggested is a manganese oxide (Mn3O4) due to its lower cost than that of noble-metal catalysts, as catalyst poisons present may result in rapid deterioration of the catalyst. 
A process flow chart is presented, which includes two parallel zeolite beds that operate in shifts, followed by catalytic combustion. Heat recovery is possible, and a heat exchanger is implemented after combustion to heat the regenerative air flow.
The process is modeled as steady-state, and results include general dimensions as well as capital and operational costs. Calculated with the software EconExpert, the resulting capital costs as estimated are 12,-800,000 SEK. Operational costs are approximately 200,-000 SEK/year after two years. 
For future work, it is of crucial importance to determine what VOCs are present for accurate modeling and predictions.}},
  author       = {{Wiktorsson, Erik}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Purification of Volatile Organic Compounds in Channeled Ventilation Pipes at the Sysav Water Treatment Plant for Hazardous Waste}},
  year         = {{2022}},
}