Search results for "puhdistus"
showing 4 items of 34 documents
Particle balance and return loops for microplastics in a tertiary-level wastewater treatment plant.
2021
Highlights: Dewatering by centrifugation was a step that removed a high number of MPs from the sludge. Sludge retained especially the fibrous microplactics. Reject water transported microplastics inside a wastewater treatment plant. Disc filter-based tertiary treatment ensured removal of 99% of microplastics in wastewater. Microplastics (MPs) from households, stormwater, and various industries are transported to wastewater treatment plants (WWTPs), where a high proportion of them are captured before discharging their residuals to watersheds. Although recent studies have indicated that the removed MPs are mainly retained in wastewater sludge, sludge treatment processes have gained less atten…
On-chip purification of arc-discharge synthesized multiwalled carbon nanotubes via mobile liquid interface
2017
This thesis reports a novel approach for purification of carbon nanotube (CNT) samples deposited on smooth silicon substrates through a mobile liquid interface interacting with carbonaceous debris particles that contaminate the deposition. The method is based on physical interaction of the particles and the three-phase contact line via capillary interface forces, i.e. the surface tension, which results in the detachment of chemically indispersible colloids from the sample surface. In the experiments reported in this work, we focus primarily on arc-discharge grown multi-walled carbon nanotubes, whose synthesis is particularly plagued by carbonaceous debris that is difficult to remove without h…
Pyhäpäivien vietto varhaismodernin ajan Savossa (vuoteen 1710)
2016
In this dissertation, I study the observance of holy days among the peasantry in the early modern province of Savo, located on the eastern periphery of the Swedish kingdom (today Eastern Finland). I examine the practices, norms and meanings related to the observance of holy days both within and outside the Church, and analyse the changes and continuities in the post-reformation period. As the main sources of the study, I use district court records and visitation records mainly from the period 1639–1712. I analyse the cases with a micro-historical perspective and an anthropological approach. The lived religion of the peasantry was constituted especially through practices that were connected …
Pyhäpäivien vietto varhaismodernin ajan Savossa (vuoteen 1710). Lectio praecursoria 29.4.2016.
2016
FM Miia Kuhan Suomen historian väitöskirja Pyhäpäivien vietto varhaismodernin ajan Savossa (vuoteen 1710) tarkastettiin 29.4.2016 Jyväskylän yliopistossa. Vastaväittäjänä toimi dosentti Raisa Maria Toivo Tampereen yliopistosta ja kustoksena professori Kustaa H. J. Vilkuna Jyväskylän yliopistosta.