In deze nota worden de resultaten beschreven van onderzoek naar de aard en concentratie van opgeloste organische stoffen in het percolatiewater van de vuilstortplaats in Ambt-Delden. Veel van de in percolatiewater voorkomende bestanddelen kunnen betrekkelijk gemakkelijk worden bepaald met behulp van titrimetrie, colorimetrie en atomaire absorptie. ...
Cardiovascular diseases account for a large part of total mortality: in 1974 45.7% of all deaths in the Netherlands were due to these diseases. As at least part of these diseases is man-made, the need for prevention is often stressed. The Netherlands Heart Foundation has many activities which aim at getting people to change their way of life if it ...
An investigation has been made of the enzymic degradation of biopolymers by activated sludge. Starch was chosen as the model substrate; it was administered continuously at different sludge loading values which covered the entire range of loadings applied in sewage purification plants. The acclimatization of activated sludge to loading with starch a...