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Ted Mooney, P.E. RET
Pine Beach, NJ

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ORP values for treating waste water

Could someone share specific information on using instruments such as orp meter to regulate oxidation of specific metals in waste water. Water contains ferrous salts in the range of 7000 ppm and we need to control additon of oxidizer. Also may encounter other metals.

James Chunn
- Theodore, Alabama
1998

I know that Orion Research has several instruments and electrodes that measure ORP/pH/temp. One particular instrument (250A+) can be calibrated to the SHE, with a standard.

Don Campbell
- League City, Texas
2000

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