Design and Manufacture of Machine for Removing Ceratophyllum Demersum and Other Plankton in Rivers

Abstract

Ceratophyllum plant covers most waterways, including lined channels and trenches. This plant causes a loss in the amount of runoff, velocity of water in the channels, and reduces the drainage rates. This research aims to design and manufacture a machine to clean the water intake outlet for the filtering station of Karbala drinking water by removing plankton, Ceratophyllum plant and algae, and throw these impurities out by means of adding catchers to the machine. As a result of gathering of these floating plants during runoff, it around water surrounding channels intake that were went to suction pumps, so that the channels are blocked. That is why, the workers would be frequently getting down to the river for cleaning after shutdown of the pumps. After studying the topic and coming up with an idea, according to which the design and technology drawings of the machine and determining the location where the device will be tested after implementation at different speeds (30, 60, and 100 m/min.). Three types of catchers (holders) of Ceratophyllum Plant and other Plankton were used. It was obtained that the cross-sectional area of the flow of the machine is greater than that of the suction pipe of the water purification station. The best linear speed for this machine was 30 m/min, which removes impurities by 2.2m³.