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RE: Breakpoint Chlorination

Woodie — Thu, 31 Jan 2008 20:20:42 GMT

Ryan,

The following is a quote from EPA's Nitrogen Control Manual:

"The utilities director's recommendation for other considering full nitrogen control by breakpoint chlorination can be summarized in one word --'don't'. "

It is not a stable reaction. If you use elemental chlorine you will likely need to add alkalinity to ensure a complete reaction. If you use hypochlorite you won't.

Clifford White's Handbook of Chlorination would be your best source of information.

Woodie

RE: Breakpoint Chlorination

rwhitworth52 — Thu, 31 Jan 2008 17:16:43 GMT

Ryan,

Try feeding 8 parts chlorine per part of ammonia. If you want to remove 80 mg/l ammonia you need to apply 640 mg/l of chlorine. 1 % soluiton of chlorine is equal to 10,000 mg/l. If you want to know exactly how much to feed, volume of water to be treated and % of available chlorine is needed (if liquid is used). This is just a starting point because other materials can consume chlorine.

Breakpoint Chlorination

WasteWater TREATOR — Thu, 31 Jan 2008 16:40:40 GMT

I need to calculate the correct dosage for reducing ammonia from approximately 100ppm to 20ppm through breakpoint chlorination. can anyone help me with this calculation? I cant seem to find it...and i need the dosage per gallon of wastewater...

Ryan