27.08.2012 - Organic waste for biogas plant

The waste collection in our case study “Bag 7” started at the 15^th of August with more than 70 families and finished at the 22^th of August. The aim of this collection is to find out how much organic waste and recyclable waste (plastic, metal, paper, …) can be collected in the total bag. In future, the organic substances should be used in the biogas plant for a co-fermentation. For the recyclable fractions, we are planning options for treatment facilities. Furthermore, we are developing a conception for a collection system and its implementation in “Bag 7” representatively for the ger settlements in Darkhan.

24.08.2012 - Installation of electrical ventilation

Ongoing monitoring and development of the iPIT has highlighted the need to add a new technical part to the toilet. Because of users complaining about a cold breeze from the inside of the toilet especially in winter, two different kind of fans have been installed. These have been placed underneath the delivery pipe to direct the air stream in the right direction. In hindsight, this should have been done using natural ventilation by using the chimney effect (black pipe to heat up the air inside).

The first fan being tested is slightly larger than the other. It requires more energy, therefore problems may occur due to the inconsistent power supply. The second one is an ordinary computer fan. It seam to work well, but because an added component of a transformer is needed, the costs are more or less the same.