Impacts of Assimilable Organic Carbon During the Coagulation by Aluminum in Drinking Water

Author

Liang, Tao ; Ma, Jun

Author_Institution

Nat. Eng. Res. Center of Urban Water Resources, Harbin Inst. of Technol., Harbin, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

Abstract

The variation of Assimilable Organic Carbon (AOC) during the coagulation of raw surface water and synthetic water by Al₂(SO₄)₃ was investigated. It was found that the removal rate of AOC concentration during alum coagulation of raw surface water was about 49.5% at high coagulant dosages. The AOC of water decreased efficiently during coagulation in the case of synthetic water at lower coagulant dosages, and the lowest value of AOC achieved was 186 mugldrL^-1. The results showed a relationship between the solution pH and the reduction of AOC. The performance of coagulation effect was evaluated based on the following parameters: pH, turbidity, UV absorbance at 254 nm (UV₂₅₄), and Total Organic Carbon (TOC). The results showed that the coagulation performance have substantial impact on AOC reduction.

Keywords

aluminium compounds; biochemistry; coagulation; organic compounds; pH; turbidity; ultraviolet spectra; water quality; water treatment; AOC concentration removal rate; AOC reduction; Al₂(SO₄)₃; UV absorbance; aluminum coagulation; assimilable organic carbon; drinking water; raw surface water; solution pH; synthetic water; total organic carbon; turbidity; wavelength 254 nm; Aluminum; Biodegradable materials; Biological materials; Capacitive sensors; Coagulation; Microorganisms; Organic materials; Rivers; Stability; Water resources;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5162928

Filename

5162928