ESCO International

Advanced Oxidation Process for Refinery Wastewater Treatment

1

Source: ESCO International

A large European refinery company was interested in advanced oxidation process solution to treat 40,000 m3 batches of contaminated water.  In order to get this project approved technically and economically, the company selected ESCO International as a supplier of AOP systems.

To assess whether AOP would be successful, a 30L representative sample of wastewater was send to ESCO International.  The table below shows the contaminants concentration range expected in the wasterwater.

Cavern Content

       Levels Range

       Discharge Limits

Volume

      40,000 m3 

Salts (seawater)

      20 g/l

Ammonia

   40-45 mg/l

    < 5 mg/l

Sulphides

   120-130 mg/l

    < 1 mg/l

COD

   250-600 mg/l

    STD < 150 mg/l

BOD5

   < 3 mg/l

     <   30 mg/l

TOC  

   15-150 mg/l

Phenol

   5-10 mg/l

    STD < 1 mg/L

Free Oil

   Not detected

    < 10 mg/l

Solids

   Not detected

    < 30 mg/l

Table below illustrates test results for the best AOP configuration and test conditions.

TOC analysis was also conducted in order to gather information about the total oxidative destruction of organic compounds in wastewater. The results demonstrated the viability of the AOP process.

Total elimination of Sulphides, Ammonia and Phenol was achieved.

COD reduction exceeded the target set by the  company’s standards of less than 150 ppm.

Compounds

      Feed, ppm  

     Treated Effluent, ppm      

 

 

 

 

 

NH3

 

39-45

 

< 1

Nitrate

 

n.a

 

57

Sulphides

 

126

 

< 0.01

Sulphates

 

n.a.

 

28

Phenol

 

7.5

 

< 0.01

TOC

 

 107

 

24

COD

 

287

 

63

 

 

 

 

 

ESCO International technologies offer unique solutions to some of the most critical water and waste water and gas effluent challenges using latest advances in Advanced Oxidation Processes, Ozone and UV technologies.

For more information, contact us on info@escouk.com or call +44 1492 584140.

 

 

 

Customer comments

  1. By Randy McGuffin on

    We desperately need an innovative solution for the elimination of FOG in lift stations. I heard in California there is some new Green Technology that supposedly works. Any idea what this might be, Chemical, bacterial, or mechanical?