1,4-Dioxane removal from water using ozone

1,4-dioxane
1,4-Dioxane molecule

 

The presence of 1,4-Dioxane in water sources has gained the attention of regulating bodies and the media recently.  Recent advances in analytical tools have given confirmation of the presence of 1,4-Dioxane in groundwater and drinking water sources, along with common sources or related contaminates.   This, along with the better understanding of the potential health effects of 1,4-Dioxane has created additional pressure at the removal of this VOC from drinking water and potentially contaminated groundwater sites.

 

Ozone may be the answer or a part of the answer to 1,4-Dioxane removal in water.  Our recent bench tests found complete elimination of 1,4-Dioxane in water within 10 minutes of treatment time.  Adding H2O2 to achieve the Advanced Oxidation Process (AOP) showed no benefit to ozone alone.

 

Test #1 used ozone gas at 6% by weight bubbled through a column of water
 
    Test #1 Test #1 Test #1
VOC 0 min 10 Minutes 20 Minutes 30 Minutes
1,1,1-Trichloroethane 66 ppb 4.5 ppb 0.31 ppb 0.28 ppb
1,1-Dichloroethane 380 ppb 50 ppb 9.6 ppb 0.93 ppb
1,1-Dichloroethene 140 ppb 0.34 ppb 0.34 ppb 0.34 ppb
1,4-Dioxane 120 ppb NR NR NR
Tetrachloroethene 140 ppb 0.12 ppb 0.12 ppb 0.12 ppb
Trichloroethene 410 ppb 0.22 ppb 0.22 ppb 0.22 ppb

Link to full results HERE

 

This data showed complete elimination of 1,4-Dioxane with ozone, along with reduction of all other VOC’s present in water at the same time.  

We have provided equipment for removal of VOC’s and specifically 1,4-Dioxane from drinking water and contaminated groundwater plumes.  Should you require specific equipment recommendations, we would be pleased to discuss this with you.  

 

Links to equipment we offer below:

 

For additional information on the removal of 1,4-Dioxane from water below is a list of technical papers and research we have compiled.

 

Technical Documents:

 

 

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