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Improvement of Biological Processes of Inland Municipal Wastewater Treatment Plant.
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This master thesis gives an account for various aeration schemes that are utilized in conventional activated sludge treatment process in a wastewater treatment plant. By altering between different aeration schemes, the project aimed at reducing energy consumption along with maintaining the treatment performance at the plant. A series of experiments on the treatment performance over several different aeration schemes thus has been conducted on site at Solviken in Mora, Sweden.

The project is basically a case study where no parameters were manually controlled except for the aeration schemes at the plant. Energy consumption reduction is logically relative to the ratio between aeration and non-aeration intervals. Several criteria were tested in regards to the treatment performance, including pH value, organic matters, phosphorus substances and microorganisms.

The study has come up with a superior aeration scheme for the plant, as well as indicated processes that can be improved at the plant.

Place, publisher, year, edition, pages
, TRITA-LWR Degree Project, ISSN 1651-064X ; 2016:15
Keyword [en]
Municipal wastewater treatment, Activated sludge treatment, Intermittent aeration
National Category
Civil Engineering
URN: urn:nbn:se:kth:diva-190742OAI: diva2:952541
Subject / course
Water, Sewage and Waste
Educational program
Degree of Master - Environmental Engineering and Sustainable Infrastructure
Available from: 2016-08-15 Created: 2016-08-15 Last updated: 2016-08-15Bibliographically approved

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Land and Water Resources Engineering
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