Removal of Hardness of Water by Ion Exchange Column
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- White, R. H. "Ion Exchange Resins: Properties and Applications." Academic Press.
- American Public Health Association (APHA). "Standard Methods for the Examination of Water and Wastewater." 23rd ed.
- Wilson, K. S., & Johnson, P. Q. "Principles of Water Treatment." Wiley.
- Resin Manufacturer's Name. "Ion Exchange Resin User Manual."