Boron removal



Boron removal

Developed innovation description

The boron present in the water is found in natural form as boric acid B(OH)3 or as borate ion [B(OH)4]-. Both boric acid and borate ions are two species very soluble and difficult to precipitate. Due to this high solubility, SERVYECO has developed an innovative system to remove boron, based on ion exchange techniques.

Due to the high presence of boron compounds in wastewater from different industrial processes, in contaminated aquifers or in seawater and because these compounds can not be removed with traditional methods of coagulation and flocculation in Servyeco we have developed a new and innovative system for their removal in order to  accomplish with technical and legal requirements.

 

Advantages over traditional alternatives

Extreme solubility of boron compounds made their treatment with coagulation non-effective, so that treatment plants do not remove or reduce the amount of boron.

Searching an alternative more efficient in order to give a solution for the presence of boron compounds in waste water, Servyeco has developed a series of ion exchangers with the following advantages:

 

  • High specificity for the boron compounds. With ion exchange techniques only boron is removed, so there is no decreased due to the presence of other salts
  • High removal efficiency, even reaching 95%
  • Can be designed a continuous process
  • Feasibility at industrial level
  • Possibility of adapting the water produced to the amount of boron required. This advantage is used to minimize the amount of waste generated

                                           Boron removal

Servyeco facilities

Boron removal

 

Markets/Sectors

Boron compounds are used in different industrial sectors, such as in the field of metallurgy, welding, glass and vitreous glazes, pharmaceuticals, coatings, nuclear industry, etc. The main industries with boron as a pollutant are those in which, obviously, this material is used for its production process, such as ceramics industry, surface treatment industry, fertilizer manufacturing industry. Other industries with problems are those that indirectly use boron compounds for its production process, such as industrial cleaners, and even seawater desalination, since boron is found in concentrations of about 4,5 mg/kg, so its reduction for industrial or even food use is essential.

 

Study cases:

Boron removal