RECLAMATION OF PCB WASTEWATER

D. Al-Sabtia, Matheel; W. Kasser, Nahidh; Y. Hussein, Mudhafar

doi:10.30684/etj.26.11.3

	RECLAMATION OF PCB WASTEWATER
Engineering and Technology Journal
Article 1, Volume 26, Issue 11, 2008, Pages 1326-1340 PDF (266.73 K)
DOI: 10.30684/etj.26.11.3
Authors
Matheel D. Al-Sabtia; Nahidh W. Kasser; Mudhafar Y. Hussein
Abstract
Wastewater from electronic printed circuit board (PCB) factories was subjected to lab-scale ion exchangers of two types: strong acid cation followed by weak base anion exchanger. The experimental investigation was directed to study the ion exchanger performance in terms of three different parameters namely (TDS, feed rate and bed depth). Box-Wilson composite rotatable design was adopted in designing the experiments. Breakthrough times of (PCB) wastewater were studied through TDS ranged between 317 to 1193 ppm, feed rate ranged between 0.712 to 4.980 l/h, and bed depth of cation exchanger ranged between 9.4 to 60.6 cm and anion exchanger ranged between 14.3 to 91.0 cm. Simulation the effect of the studied variables through their pre-designed ranges in terms of breakthrough time by 2nd order polynomial equation was obtained. In general, the performance and characteristics of adopting two bed deionizers (cation and anion beds) was proved efficient for the removal of the ionic contaminants and not less than 95 % of wastewater is recycled. In addition, the research considers the treatment of highly metals content regenerant solution out coming from reclamation system to minimize its metal content. The reclamation of wastewater was studied in terms of breakthrough time (i.e., the leakage of the cations).
Keywords
wastewater; Ion Exchange; TDS; feed rate; Bed Depth

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