CHEMICAL TREATMENT OF WATER STREAM IN A CONTINUOUS FLOWING PROCESS WITH DOPING TECHNIQUE: CALCIUM HYDROXIDE (CA(OH)2) AS A CASE STUDY
Journal Title: Engineering and Technology Journal - Year 2022, Vol 7, Issue 3
Abstract
Water from rivers are often characterised with variable compositions influenced by the environment on the path of flow. Treatment with chemicals additives to obtain a level of purification will require repeated test to ascertain required concentrations. The complex structure of a continuous flowing river was investigated to determine required dosage with different concentrations of Calcium Hydroxide in specific volumes of the water in a gang stirrer operated at 12 rpm. The dosages and level of purity were evaluated. The results showed that the 20% alkaline stock solution was suitable for the dosing process as it gave a PH of 7.30, TDS of 38.38mg/l, Temperature of 280C and viscosity of 1400.7p/s. The derived optimum dose percentage from jar test analysis, introduced into a customised water treatment pilot plant was used improve the water quality with ratio controlled mechanism for a continuously flowing process by regulating the valves of the main source supply in a simple ratio flowing rates ( manipulated stream) with the controlled doping valve for a regular continuous treatment. Data obtained were applied to develop a the correlation between the flow rates of the main stream and the doping concentrations in using Aspen Hysys simulation with rigorous evaluations to predict subsequent flow rates for qualitative and quantitative chemical treatment of water in a continuously flowing water purification system. The mechanism and the relationships could be used for doping other chemicals in a continuously flowing water processing.
Authors and Affiliations
Duduyemi Oladejo, Tombri Blessing, Raji N. A. , Adedeji K. A. , Adeshina A. A. , Akinbomi J. G. ,
Keywords
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- EP ID EP705183
- DOI 10.47191/etj/v7i3.01
- Views 72
- Downloads 0
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