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Suitability of electrocoagulation for industrial wastewaters and changing water quality
(2019)
Electrochemical water treatment methods are well suited for treatment of wastewater without a need for coagulation chemicals thus eliminating residual concentrations. The target of this master thesis is to evaluate the ...
Utilizing energy measurement system in wastewater treatment to reduce costs and greenhouse gas emissions : Case Lahti Aqua
(2021)
Wastewater treatment is going through critical period where energy efficiency and both carbon neutrality and energy self-sufficiency direct the development of the whole field of business. Especially monitoring the electricity ...
Environmental impacts of recycling-based cellulose carbamate fiber
(2020)
Over 100 million tons of textile fibers are consumed by the global textile industry every year. Most of these fibers are currently produced from virgin raw materials, and the environmental impacts of their production are ...
Jätevedenpuhdistamon suorituskykymittariston suunnittelu : tapaus: Kariniemen jätevedenpuhdistamo
(2021)
Moni yritys käyttää suorituskykymittaristoa seuratakseen ja kehittääkseen liiketoimintaansa. Tämän diplomityön tavoitteena on laatia suorituskykymittaristo jätevedenpuhdistamon tarpeisiin. Suorituskykymittariston suunnittelu ...
Ravinteiden talteenottaminen nestemäisistä virroista adsorbenteillä
(2021)
Työn tarkoituksena on selvittää kierrätettävien ravinteiden saatavuus lietteissä ja adsorptio-materiaalit, joilla ravinteita voidaan talteenottaa lietteistä. Hyödynnettävissä olevien ravinteiden kartoittamisen lisäksi ...
Perspectives of sustainability actors in an outdoor recreation economically dependent community : a qualitative case study assessed with strong and weak sustainability
(2020)
An emergent design qualitative case study investigation is performed interviewing ten active sustainability actors in the research setting of Vail, Colorado, USA guided with the central research question of “what are the ...
Metsäteollisuusintegraatin vesitase nyt ja tulevaisuudessa
(2019)
Vesitase kuvaa tyypillisesti prosessiin tuotavan veden määrää, kuinka vesimäärä jakautuu kulutuskohteille ja kuinka paljon vettä poistuu prosessista. Tässä diplomityössä selvitettiin erään sellu- ja paperitehtaan kesän ja ...
Water footprint of the European energy sector in the planetary boundaries context : from fossil-based production to the era of renewables
(2023)
The ongoing energy transition means transforming from fossil-fuel based energy production into renewable and low-carbon energy production. Societies are seeing ever increasing signals of global warming in the form of extreme ...
Environmental life cycle analysis (LCA) of polyhydroxyalkanoate (PHA) production : a techno-environmental assessment
(2023)
Polyhydroxyalkanoate (PHA) is a type of biodegradable polymer derived from renewable sources expected to serve as a viable alternative to petrochemical plastics. The aim of this study is to assess the feasibility of utilizing ...
Circular economy for breweries : utilising brewery wastewater for growing hydroponics hops
(2022)
This research is a novel approach to finding solutions for breweries to move towards sustainability by recovering nutrients from their wastewater to produce organic liquid fertilisers for growing hydroponics hop plants ...