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On-line estimation of nitrification and denitrification capacity at Avedøre wastewater treatment plant

In this paper, on-line nitrification and denitrification rate estimation in an alternating wastewater treatment plant is discussed. The nitrification/denitrification rates are estimated on-line using continuous measurements of ammonia and nitrate. From the rate estimates, the plant capacity is derived. This information is useful in various ways: for early warning to prevent severe disturbances suc

Physical and radiopaque characterisation of acrylic bone cements containing an organobismuth compound as a radiopacifier

The water sorption and desorption characteristics of triphenyl bismuth (TPB)-cements were studied. The radiopacity of TPB was evaluated in order to assess its contrast in comparison to BaSO4-containing cements. It was observed that TPB-cements absorb/ desorp less water than BaSO4 cements (BS) due to the hydrophobic nature of TPB. It was shown that the addition of TPB to acryl

Capturing everyday family practices through going-along. Methodological reflections.

In this paper I take my point of departure in a discussion around the research method of doing so called go-alongs, its possibilities and limits when trying to capture every day family practices and social differentiation. Here I am mostly interested in different aspects of work and care in relation to the practice of feeding in families with young children, a routine practice in every day family