Distribution of phosphorus, copper and zinc in activated sludge treatment process of swine wastewater.

Changes in swine wastewater chemical features during an activated sludge treatment process were surveyed on 11 farms, and analyzed with non-biodegradable elements, i.e., phosphorus (P), copper (Cu), and zinc (Zn).

Rate determination and distribution of anammox activity in activated sludge treating swine wastewater.

This paper presents a quantitative investigation and analysis of anammox activity in sludge taken from biological swine wastewater treatment plants. An incubation experiment using a (15)N tracer technique showed anammox activity in sludge taken from 6 out of 13 plants with the rate ranging from 0.0036 micromol-N(2)/g-VSS/h to 3.

Cellular migration in the postnatal rat cerebellar cortex: confocal-infrared microscopy and the rapid Golgi method.

Confocal laser microscopy of DiI-labeled slices of postnatal rat cerebellum (postnatal Day 4-10; P4-10) was compared to infrared microscopy and the rapid Golgi method (P0-14) to investigate postnatal migration of granule neurons. Vertical migration of the granule neurons occurred already at birth (P0). Surprisingly, mossy fibers often reached the external granule cell layer and were in close contact with the external granule cells.