Analysis of removing organic sulfur compounds from sewer-off gas by activated carbon
Author
Aburläcitei, Mariana
Term
4. term
Education
Publication year
2017
Pages
25
Abstract
Denne afhandling adresserer lugtudslip fra kloaksystemer, hvor flygtige svovlforbindelser som methylmercaptan (MeSH) og dimethylsulfid (DMS) kan skabe gener og risici for helbred og korrosion. Formålet er at undersøge, hvordan et hybridfilter baseret på aktivt kul adsorberer disse forbindelser, og at beskrive filterets kinetik og kapacitet under kontrollerede laboratoriebetingelser. Der blev gennemført to laboratorieforsøg: et batchforsøg for at belyse adsorptionskinetikken og et adsorptionskapacitetsforsøg, hvor den målte adsorption blev modelleret med lineære, Langmuir- og Freundlich-isotermer for både kul-imprægneret filtermedie og filterstøtte. Ifølge den beskrevne sammenligning mellem eksperimentelle data og teori præsterede filteret effektivt, også ved relativt høje koncentrationer af de undersøgte flygtige organiske svovlforbindelser. Specifikke kvantitative resultater fremgår ikke af det udleverede uddrag, men arbejdet giver praktisk indsigt i anvendelsen af aktivt kul til reduktion af kloakafgaslugt.
This thesis addresses odor emissions from sewer systems, where volatile sulfur compounds such as methyl mercaptan (MeSH) and dimethyl sulfide (DMS) pose nuisance and risks to health and pipe integrity. The aim is to assess how a hybrid filter based on activated carbon adsorbs these compounds and to characterize its adsorption kinetics and capacity under controlled laboratory conditions. Two laboratory experiments were conducted: a batch test to examine adsorption kinetics and an adsorption-capacity test, with observed behavior interpreted using Linear, Langmuir, and Freundlich isotherm models for both the activated-carbon-impregnated filter medium and the filter support. The reported comparison of experiments with theory indicates that the filter performs effectively, even at relatively high concentrations of the targeted volatile organic sulfur compounds. Specific quantitative outcomes are not provided in the excerpt, but the work offers practical insight into using activated carbon to mitigate sewer off-gas odors.
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