... contents of - 106 - the investigation include, (1) the influence of an increase in surface area and porosity of streamside on the amount and succession along with the downstream distance of ... the DO concentration change was measured at an illumination of 5000 lux in a water bath of 20°C. When measuring DO, Glucose 5 mg, 1 mg as N of each of NH4Cl, Table 1. Operation conditions in ... evaluation of the activity of each microbial community using the oxygen production rate and uptake rate of the biofilm attached to the streamside. MATERIALS AND METHODS Description of test...