Haku

With the attention paid to wastewater treatment, the process of wastewater treatment has been developing rapidly. Activated sludge process has been widely used in wastewater treatment in recent years. The purpose of this ...

Valio Ltd has launched an energy and resource reducing project the target of which is to reduce 20% of all energy and resource consumption. Inspired of that, Valio Lapinlahti have started a pilot project of a water consumption ...

Lake eutrophication is a water pollution phenomenon caused by the excessive content of nitrogen and phosphorus and is a serious environmental problem, both in Finland and China. Therefore, fundamental aspects related to ...

The excessive amount of nutrients – nitrogen and phosphorus, in the aquatic environment can lead to the rapid growth of plants and algae. As a consequence, the eutrophication of the water body can occur, which is an ageing ...

The problem of lake eutrophication is a phenomenon observed around the World. A large number of nutrients enter water body due to both natural environmental factors and human activities, and gradually changing water lakes ...

As a renewable resource, the production of biogas is increasingly valued by various countries in the world. The goal of this thesis was to study the methane potential of municipal sludge in the anaerobic co-digestion process ...

Bubbling fluidized bed boilers are applications that are utilized in the energy industry sector. Commonly, these applications are used to produce steam, heat or electricity. Steam powers many other industrial processes ...

In this thesis is intended to study how the acidic waste water inflow increase into a UASB-type bioreactor influences the water alkalinity concentration in the biological process. The acidic influent increase is coming by ...

Biogas is a mixture of different gases produced through anaerobic digestion by breakdown of organic matter in the absence of oxygen. The biogas produced from Chinese kitchen food waste was implemented in mesophilic temperature ...

The aim of this final thesis was to find out whether it is reasonable for ABO Wind AG (ABO Wind) to open Operation & management (O&M) department office in Finland. The main topics in the thesis are O&M departmental tasks, ...