Biotreatment of copper and isopropyl alcohol in waste from semiconductor manufacturing

Arturo Ruiz, Kimberly L Ogden

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The generalized use of copper chemical-mechanical planarization (CMP) in integrated circuits manufacturing is increasing as the industry moves from previous technology to copper technology. With CMP being one of the main water consumers and producers of wastewater in the fab, more low energy/cost effective methods are being developed to avoid a future risk of violating discharge regulations for copper-containing wastewater. In addition, with the expected increase in water consumption, there is an incentive to find better ways to treat and recycle wastewaters. The possibility of using biological organizms to treat copper and organic-containing wastewater is studied. Two different approaches are combined to create a treatment strategy: adsorption on immobilized cells to treat copper and biodegradation by immobilized cells to treat organics [specifically isopropyl alcohol (IPA)]. Two previously developed bacterial systems are used. In addition, predictive models for the two cases developed in previous work are evaluated in this combined treatment. Continuous flow experiments were performed. Copper adsorbed to the immobilized cells and the binding capacity is comparable to other systems found in the literature. The IPA was totally degraded.

Original languageEnglish (US)
Pages (from-to)538-543
Number of pages6
JournalIEEE Transactions on Semiconductor Manufacturing
Volume17
Issue number4
DOIs
StatePublished - Nov 2004

Fingerprint

isopropyl alcohol
2-Propanol
Copper
alcohols
Alcohols
manufacturing
Semiconductor materials
copper
Wastewater
Chemical mechanical polishing
Cells
cells
water consumption
incentives
biodegradation
Water
Biodegradation
integrated circuits
Integrated circuits
industries

Keywords

  • Biotreatment
  • Copper chemical-mechanical planarization (Cu-CMP) waste
  • Isopropyl alcohol (IPA)
  • Semiconductor manufacturing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Industrial and Manufacturing Engineering
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

Cite this

Biotreatment of copper and isopropyl alcohol in waste from semiconductor manufacturing. / Ruiz, Arturo; Ogden, Kimberly L.

In: IEEE Transactions on Semiconductor Manufacturing, Vol. 17, No. 4, 11.2004, p. 538-543.

Research output: Contribution to journalArticle

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