Adaptive Genetic PH Control of a Wastewater Treatment Unit via LABView

Ghanim Alwan


This work focuses on study the dynamics and pH control of   a wastewater treatment unit contaminated with toxic metals; Cu, Cr and Fe. PH is the major key factor of the precipitation process. Sodium sulfide (Na2S) was selected, as a chemical additive to adjust the pH of water.LABview is the powerful tool to operate and control the experimental lab scale treatment unit. The predicted dynamic model of the pH process is first order lag system with dead time. The reliable tuning of control parameters could be obtained by the Internal Model Control (IMC) technique. PD scheme was undesirable control for the noisy mixed system. PI mode has found the best control strategy for the unsteady state pH process. Genetic algorithm (GA) is the suitable global stochastic technique for adaptation the controller's settings. PI genetic adaptive mode could improve the pH control of the wastewater.

Keywords: Adaptive genetic; Control; Heavy metals; LABview; pH; Wastewater.

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ISSN (Paper)2224-7467 ISSN (Online)2225-0913

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