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An experimental study on the bulk precipitation mechanism of physical water treatment for the mitigation of mineral fouling

  • Leonard D. Tijing
  • , Bock Choon Pak*
  • , Byung Joon Baek
  • , Dong Hwan Lee
  • , Young I. Cho
  • *Corresponding author for this work
  • Engineering Research Institute
  • Drexel University

Research output: Contribution to journalJournal articlepeer-review

Abstract

The present study investigated the mechanism of physical water treatment (PWT) using particle count analyses of water. The PWT method utilized in the present study included catalytic devices and low-voltage-high-frequency device through which water continuously recirculated. Concentrated hard water at electrical conductivity of 2300-2700 μS/cm was circulated in the study at two different flow rates (i.e., 500 l/h and 800 l/h) at the room temperature. After 66 h of operation for each test, the total number of particles in water for the PWT cases increased by 165-540% as compared with those for the no-treatment cases, depending on the flow rate used. The present particle counting results provided a support for the bulk precipitation hypothesis as the mechanism of PWT, which is essentially an electro-flocculation process.

Original languageEnglish
Pages (from-to)673-681
Number of pages9
JournalInternational Communications in Heat and Mass Transfer
Volume34
Issue number6
DOIs
StatePublished - 2007.07

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 6 - Clean Water and Sanitation
    SDG 6 Clean Water and Sanitation

Keywords

  • Bulk precipitation
  • Mineral fouling
  • Particle count
  • Physical water treatment

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