NOM Removal by Electrochemical Methods

Mika Sillanpää, Heikki Särkkä, Mikko Vepsäläinen

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

7 Citations (Scopus)

Abstract

Electrochemical techniques such as electrocoagulation (EC) and electrooxidation (EO) have proved their efficiency in the removal of humic acid (HA), coliform, and algae from surface waters. Many investigations have also been conducted with synthetic wastewaters. EC combined with membrane filtration hybrid systems can increase natural organic matter (NOM) removal rates remarkably. In EO technology, electrolysis efficiency is strongly linked to electrode composition. Efficiency could be increased by changing the reactor design, using commercial electrodes, and exploring the semiconducting properties of oxide mixtures. Electrochemical methods may present an attractive alternative to other NOM removal techniques, such as conventional coagulation and chemical oxidation methods, for natural waters. Surface water treatment with EC can produce high-quality water for either potable or industrial use. This technology appears to remove some toxic pollutants from wastewater and could be used as a pretreatment in combination with some other purification technology. Boron-doped diamond (BDD) anodes have proved effective in HA removal from aqueous solutions and potentially their total mineralization.

Original languageEnglish
Title of host publicationNatural Organic Matter in Water
Subtitle of host publicationCharacterization and Treatment Methods
PublisherElsevier Inc.
Pages81-111
Number of pages31
ISBN (Electronic)9780128017197
ISBN (Print)9780128015032
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • Electrochemical methods
  • Electrocoagulation
  • Electrooxidation
  • Natural organic matter (NOM)
  • Water treatment

ASJC Scopus subject areas

  • General Engineering
  • General Environmental Science

Fingerprint

Dive into the research topics of 'NOM Removal by Electrochemical Methods'. Together they form a unique fingerprint.

Cite this