Author(s): S. Cokgor; S. Kucukali; P. Diplas
Linked Author(s):
Keywords: Oxygen transfer; Boulder; Oxygen efficiency; River
Abstract: change in DO levels between a section upstream and a section downstream of the boulders and second, documented the DO distribution around the boulders. These results indicate that the presence of boulders increased the DO levels in the flume and therefore boulders could be used in river reclamation works. The experiments with two boulders resulted in higher DO ratios compared to those obtained in the case of a single boulder. The relative depth of the ratios. When the boulder (s) was submerged under water, marginal to no changes in the level of DO in the flow were observed. The changes in DO levels were appreciable when the boulders were piercing through the water surface. Some of the DO improvements obtained by including the boulder (s) were comparable to those reported in the literature when man-made structures were placed in streams. recirculating flume. The present study focused on two main points: first, it examined the Oxygen transfer around boulders located within a stream was studied in a laboratory flow compared to the height of the boulder (s) is a n important parameter characterizing the DO
Year: 2003