Reduction of natural organic matter by an electrolytic process, conventional coagulation and direct descending filtration in a pilot-scale water treatment system

Abstract

Research Article| September 24 2014 Reduction of natural organic matter by an electrolytic process, conventional coagulation and direct descending filtration in a pilot-scale water treatment system Victor Cochrane Santiago Sampaio; Victor Cochrane Santiago Sampaio 1Departamento de Engenharia Hidráulica e Ambiental, Universidade Federal do Ceará, Bloco 713, Avenida Humberto Monte S/N, Campus do Pici, Fortaleza-CE, CEP 60451-970, Brasil E-mail: cochrane@ibest.com.br Search for other works by this author on: This Site PubMed Google Scholar Eliezer Fares Abdala Neto; Eliezer Fares Abdala Neto 1Departamento de Engenharia Hidráulica e Ambiental, Universidade Federal do Ceará, Bloco 713, Avenida Humberto Monte S/N, Campus do Pici, Fortaleza-CE, CEP 60451-970, Brasil Search for other works by this author on: This Site PubMed Google Scholar Ari Clecius Alves de Lima; Ari Clecius Alves de Lima 1Departamento de Engenharia Hidráulica e Ambiental, Universidade Federal do Ceará, Bloco 713, Avenida Humberto Monte S/N, Campus do Pici, Fortaleza-CE, CEP 60451-970, Brasil Search for other works by this author on: This Site PubMed Google Scholar Isabel Cristina Lima Freitas; Isabel Cristina Lima Freitas 2Gerência de Desenvolvimento Operacional, Pesquisa e Inovação, Estação de Tratamento de Água – Gavião, Companhia de Água e Esgoto do Ceará, Fortaleza-CE, Brasil Search for other works by this author on: This Site PubMed Google Scholar Marisete Dantas de Aquino Marisete Dantas de Aquino 2Gerência de Desenvolvimento Operacional, Pesquisa e Inovação, Estação de Tratamento de Água – Gavião, Companhia de Água e Esgoto do Ceará, Fortaleza-CE, Brasil Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2015) 64 (2): 168–175. https://doi.org/10.2166/aqua.2014.049 Article history Received: April 09 2014 Accepted: August 16 2014 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Victor Cochrane Santiago Sampaio, Eliezer Fares Abdala Neto, Ari Clecius Alves de Lima, Isabel Cristina Lima Freitas, Marisete Dantas de Aquino; Reduction of natural organic matter by an electrolytic process, conventional coagulation and direct descending filtration in a pilot-scale water treatment system. Journal of Water Supply: Research and Technology-Aqua 1 March 2015; 64 (2): 168–175. doi: https://doi.org/10.2166/aqua.2014.049 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Recently, alternative water treatment systems have been implemented due to the eutrophication of reservoirs, in which high concentrations of organic matter prevent the use of conventional water treatment methods. This paper presents a study on the electrolytic process for water treatment using an alternating current. A reactor with iron and stainless steel electrodes was built and introduced into a water treatment system equipped with conventional coagulation with alum and direct descending filtration. Factors such as pH levels, turbidity, colour, and reductions in the specific UV absorbance were evaluated. The results showed a significant reduction in the specific UV absorbance between raw water and treated water (19.51–26.45%). Furthermore, the reactor did not significantly change the pH of the water. The average turbidity of the treated water was less than or equal to 0.5 NTU, and the average colour reached 2 HU, classifying the treated water as drinking water according to the current ordinance in Brazil. The cost of the electricity used by the reactor was $0.10 per cubic metre of water produced. electrolytic process, natural organic matter, water treatment © IWA Publishing 2015 You do not currently have access to this content.