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Hydraulic energy recovery by replacing a control valve with a centrifugal pump used as a turbine
(2016)
Reverse running centrifugal pumps as turbines (PaT’s) are used in small-scale hydropower generation mainly because of lower investment costs. Predicting the turbine mode operation point for a centrifugal pump has a lot of ...
Turvallisuuden ja jatkuvuuden hallinnan informaatioarkkitehtuurin kehittäminen
(2017)
Tässä diplomityössä suunnitellaan Mikkelin vesilaitoksen tilannekuvajärjestelmään moduuli, jolla tuodaan vesilaitoksen varautumissuunnitelma paremmin osaksi tilannekuvajärjestelmää ja päivittäistä työskentelyä. Sen lisäksi ...
Use of recycled nutrients in biological wastewater treatment
(2017)
In this master’s thesis, possibilities for using recycled nutrients in industrial wastewater treatment, as nutrient source, were studied. Possible sources for recycled nutrients found, were biogas plant’s reject water, ...
Gamified participatory sensing: Impact of gamification on public’s motivation in a lake monitoring application
(2017)
Participatory sensing is the concept or practice whereby individuals or publics using ICTs such as mobile phones, contribute to data collection, analysis and sharing of knowledge. The lack of motivation from publics is ...
Reject water management at biogas plants and the utilization of reject water as a culture medium for microalgae
(2016)
In this master’s thesis, the potentiality of microalgae cultivation in effluent liquid (reject
water) from a biogas plant was studied. The thesis examines influencing factors to the
quality of reject water and considers ...
Sähkökoagulaatiolaitteiston kehittäminen pintakäsittelylaitoksen jäteveden käsittelyyn
(2015)
Tässä työssä kehitetään sähkökoagulaatiolaitteisto metallipinnoituslaitoksen jätevesien
puhdistamiseen. Sähkökoagulaatio on sähkökemiallinen vedenpuhdistusprosessi, jossa
hyödynnetään liukenevaa metallianodia. Sähkövirta ...
Mittaussuureiden hyödyntäminen pumppujen kuluman ja tukkeuman havaitsemisessa
(2017)
Keskipakopumppu on teollisuuden käytetyin pumpputyyppi ja sitä käytetään siirtämään erilaisia nesteitä pisteestä A pisteeseen B. Pumpattava neste sisältää usein paljon kiinteitä hiukkasia mikä aiheuttaa pumpun voimakasta ...
Cascade hydropower capacity increase profitability analysis with optimisation modelling
(2016)
The electricity market and climate are both undergoing a change. The changes impact hydropower and provoke an interest for hydropower capacity increases. In this thesis a new methodology was developed utilising short-term ...
Solutions to water problems in the bottom of the pyramid market
(2016)
Solving the water crisis in the developing world is a critical issue. Four billion people in the globe, so called the Base of the Pyramid (BoP) population suffer from inadequate access to safe drinking water, while millions ...
Investigating high-power ultrasonic vibration and vacuum as methods to enhance the extraction of water from municipal wastewater sludge
(2016)
The main objective of this thesis is to uncover and investigate physical mechanisms that can be used to develop efficient ways to remove water from municipal wastewater sludge. The essential criterion will be to minimize ...