Kaksoisviemäröinti ja harmaan jäteveden kierrätys

Abstract

Tämän opinnäytetyön tarkoituksena on esittää kaksoisviemäröinnin rakenne ja selvittää sen toimivuutta harmaan jäteveden kierrättämisessä. Työssä pohditaan harmaan jäteveden kierrättämisen kannattavuutta ja markkinoita. Työssä selvitetään myös kaksoisviemäröinnin suunnittelun erityispiirteet.

The purpose of this thesis is to present a double-drainage system structure and determine the effectiveness of the gray waste water recycling. The aim is also to consider whether gray waste water recycling is profitable, and where to find profitable markets. The thesis explains also special features to be considered in the design. The principle of the double drainage system is to extract gray wastewater of black wastewater. The purpose of recycling wastewater is to collect used drinking water and recycle it for reuce. So that gray water can be recycled, it should be cleaned which requires a filtration system. This thesis describes a double drainage system and heat recovery system which is implemented in a block of flats. The work also focuses on the design of the system. The research was conducted by interviewing two different persons who have been involved in the project. Based on the work it was found that the current technology Collection of gray wastewater separately as well as its cleaning and recycling is possible. The double-drainage and gray wastewater recycling system is not profitable in Finland but in the rest of the world the system will be in demand.