Investigating the combination of ultrasound and electrokinetics as mechanisms to enhance sludge dewatering
Nekrasevits, Andrei (2020)
Diplomityö
2020
School of Energy Systems, Konetekniikka
Kaikki oikeudet pidätetään.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe202003026931
https://urn.fi/URN:NBN:fi-fe202003026931
Tiivistelmä
The aim of this thesis is to design an apparatus that will be used to experimentally investigate ultrasound and electrokinetics enhanced dewatering of the sludge. To understand the mechanisms behind this enhanced dewatering, theories touching the topic of sludge dewatering methods, ultrasound working principle, and electrokinetics phenomena are discussed.
In the practical part of the thesis Solidworks® is used to design the apparatus, which is then built by a prototype workshop. A series of experiments are conducted using assembled experiment setup to dewater chia seeds that are used as a substitution to the commercial sludge. The problem caused by the corrosion of the electrodes is briefly discussed and the potential solution to this problem is presented.
The experiment showed that using a combination of ultrasound and electrokinetics can dramatically enhance sludge dewatering compared to the conventional dewatering methods.
In the practical part of the thesis Solidworks® is used to design the apparatus, which is then built by a prototype workshop. A series of experiments are conducted using assembled experiment setup to dewater chia seeds that are used as a substitution to the commercial sludge. The problem caused by the corrosion of the electrodes is briefly discussed and the potential solution to this problem is presented.
The experiment showed that using a combination of ultrasound and electrokinetics can dramatically enhance sludge dewatering compared to the conventional dewatering methods.