Next Article in Journal
Manganese Coated Sand for Copper (II) Removal from Water in Batch Mode
Previous Article in Journal
An Ecological Flood Control System in Phoenix Island of Huzhou, China: A Case Study
Article Menu

Export Article

Open AccessArticle
Water 2013, 5(4), 1472-1486; doi:10.3390/w5041472

Characteristics of DOM and Removal of DBPs Precursors across O3-BAC Integrated Treatment for the Micro-Polluted Raw Water of the Huangpu River

School of Energy and Environment, Southeast University, Nanjing 210096, China
*
Author to whom correspondence should be addressed.
Received: 30 July 2013 / Revised: 27 August 2013 / Accepted: 18 September 2013 / Published: 25 September 2013
View Full-Text   |   Download PDF [595 KB, uploaded 9 June 2015]   |  

Abstract

The aim of this study is to determine the impact upon dissolved organic matter (DOM) and removal of disinfection by-product (DBP) precursors of adding an ozone-biological activated carbon (O3-BAC) process after the conventional treatment process (CTP) using water from the Huangpu River in Shanghai, east China. Several metrics, including size fractionation, dissolved organic carbon (DOC) and trihalomethane formation potential (THMFP), were employed to accomplish this goal. In the raw water collected from the Huangpu River, the low molecular weight (MW) molecules (MW <3 kDa) were absolutely dominant in DOM, accounting for more than 55% of total DOC, and the DOM resulted in a high THMFP level of 472.91 ± 4.63 µg/L after an excessive chlorination. The CTP reduced high MW molecules (MW >10 kDa) by 61% and the low MW molecules (MW <3 kDa) by only 8%. The O3-BAC presented an accumulated DOC removal efficiency of approximately 50%, in particular, showing a high degree of the removal effectiveness of low MW molecules. Samplings from the CTP, ozone and BAC were subjected to excessive chlorination to determine the THMFP, and the measured concentrations were 211.89 ± 4.58 µg/L, 169.52 ± 4.55 µg/L, and 124.42 ± 4.27 µg/L, respectively. Therefore, coupled with the THMFP removal rate of 74%, the addition of the O3-BAC process after an existing CTP improved the water quality of the effluent, particularly, in terms of the improved reduction in the precursors of DBPs.
Keywords: drinking water treatment; molecular weight fraction; disinfection by-product; ozone; biologically activated carbon drinking water treatment; molecular weight fraction; disinfection by-product; ozone; biologically activated carbon
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wu, Y.; Zhu, G.; Lu, X. Characteristics of DOM and Removal of DBPs Precursors across O3-BAC Integrated Treatment for the Micro-Polluted Raw Water of the Huangpu River. Water 2013, 5, 1472-1486.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top