Wednesday, August 5, 2015

How To Eliminate Rotten Egg Odor in Well Water with Hydrogen Peroxide and Catalytic Carbon

Hello -  Darn rotten egg smell in well water.  Did flush the system once with hydrogen peroxide and cut anode rod out.  Went away for a week or so.  Came back.  What do I need to do??  I put our softener on bypass, that had no effect one way or the other.   I would like to peroxide and inject it continuously, will that work?

Phillip S.

Hello sir,

One very effective method to treat this water is by using Peroxide (H2O2) injection to destroy/oxidize the level of Iron, Sulfur, etc.  Once injected we allow for appropriate retention time with the H2O2 so it can work to destroy and oxidize the contaminants in a 40 Gallon Contact tank, and then simply filter the oxidized particulate with a Coconut Shell Catalytic Carbon filter.  You can also opt to NOT use the contact tank, and have the oxidation reaction occur directly on the carbon.  This works fine if the H2S is less than 5.0 PPM.

In this application the metering pump would be wired to come on with the well, and then whenever energized a dilution of peroxide would be injected to oxidize odors for filtration by the Carbon filter.  This system will remove the residual peroxide, dissolved oxygen, along with other tastes and odors from the treated water as well.  

There are many benefits of using Peroxide to treat water, one of the main being Peroxide does not tend to create harmful Disinfectant By-Products which chlorine does.  Maintenance costs are similar to Chlorination, Peroxide does cost a bit more typically however the benefit is not using chlorine whatsoever.  Here is a link to additional information on our site in relation to Peroxide as well

water softener

The following will include product links, pricing, as well as additional information on the components necessary.  Note that I’ve sized this to treat a home with up to 2 bathrooms, we do offer smaller and larger sizes as well.

Precision-24 Metering PumpPrecision-24 Metering Pump with 15 Gallon Solution Tank:                     

Extremely versatile pump comes in either 115 or 220 volt so as to be wired to come on whenever your well or pressure system is energized.  Works with well water flow rates from 1 – 50 Gallons per Minute (GPM).  All installation information is provided as well as our tech-support.

Output rating:  0.1 – 24 Gallons per Day (GPD).  Pressure rating:  Will inject into lines with up to 110 PSI.  Digital speed adjustment allows for quick changes to pump output.

Click here for additional information about this product.

Additional features:  Degassing Valve is built in which makes this great for chlorination use.  System includes Metering Pump, 10 Gallon Solution Tank, Injection Check Valve, tubing and installation fittings.  25 & 35 Gallon tanks also available for additional cost. 

                                      Excellent Warranty:  1 year on the Metering Pump

40 Gallon Contact Tank   40 Gallon Contact Tank                                                                     
The CT-40 tank is a durable easy-to-install retention tank designed to provide optimum contact time during chemical treatment. These lightweight seamless totally non-corrosive retention tanks are ideal for new and replacement installation where durability is at a premium. 100% non-metallic polymer materials. Impervious to chemical attack.  Comes with  1-1/4 inch inlet.

2 sizes to choose from, same price  Either 16”Diameter x 58”Tall OR 21” Diameter x 36” Tall

Click here for additional information about this product.

Excellent Warranty:  5 Years from date of installation.

Vacuum BreakerVacuum Breaker, ½” Male Pipe Thread (MPT).                             

Vacuum breaker relief valve Watts 1/2" male 200 PSI maximum.
Required for contact and retention tanks to prevent vacuum in system and avoid imploding vessel.

Click here for additional information about this product.

Neutra Sul Hydrogen Peroxide NSF Grade for Drinking Water   Neutra Sul Hydrogen Peroxide NSF Grade for Drinking Water                  

Safe to use 7% solution.  Case of 4  1-gallon containers.   NSF Certified for Drinking Water applications.  Average use is 1/2 gallon to 1 gallon per month depending on level of odors and amount of water used. 

Click here for additional information about this product.

Catalytic Carbon Backwash 5900Catalytic Carbon Backwash 5900, 1.0 cu. Ft. 115 Volt:                            

All the filter media you need for the system is included. Excellent for use in removing residual peroxide from water once injected, along with improving overall tastes and odors. Long lasting & durable this Coconut Shell Catalytic Carbon typically lasts for 5 – 7 years and is easily replaced.

Much longer life and higher flow rates than standard carbon. Unlike carbon cartridges which can trap sediment and dirt causing pressure drop these systems automatically backwash out trapped sediment alleviating pressure drop.  Allows for a maximum flow of 10 GPM which is perfect for your home.

Dimensions:  9” Diameter x 54.5” Tall with control valve.  ¾” or 1” pipe connectors and bypass is included.  We also provide full installation and start-up guides directly to you and are available for Tech-support. 

Click here for additional information about this product.

Excellent Warranty:  5 Years on NSF Control Valve & 10 years on the media tank.