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Journal of Polymers and the Environment

, Volume 25, Issue 4, pp 1262–1272 | Cite as

The Effects of Physicochemical Properties of Sludge on Dewaterability Under Chemical Conditioning with Amphoteric Polymer

  • Liang Qi
  • Shi-chuan Wu
  • Jian-hua ChengEmail author
  • Yong-you Hu
Original Paper

Abstract

This study investigated the effects of chemical conditioning with amphoteric terpolymer poly (acrylamide-’acryloyloxyethyl trimethyl ammonium chloride -2-acrylamido-2-methyl-propane sulfonate) (PADA) on sludge dewaterability. Particle size, fractal dimension, surface charge, extracellular polymeric substances (EPS) and trivalent metal ions (Al3+ and Fe3+) of sludge were monitored and Pearson statistical analysis was used to understand the correlation of dewaterability and physicochemical properties of sludge. The results revealed that: (1) Sludge dewaterability was significantly enhanced by amphoteric polymer PADA. (2) Particle, fractal dimension and surface charge of sludge were associated with anionic degrees and molecular weights of polymer. (3) PADA had apparent effects on removal of EPS and enrichment of metal ions in sludge system. (4) Content of water and specific resistance to filtration had statistically strong correlations with the values of particle size, fractal dimension and EPS, but had weak correlations with values of surface charge and metal ions.

Keywords

Physicochemical properties Fractal dimension Amphoteric polymer Sludge dewaterability Extracellular polymeric substances Pearson statistical analysis 

Notes

Acknowledgements

We gratefully acknowledge the National Natural Science Fund of China (Foundation of Guangdong Province of China; No. U1401235) and the Fundamental Research Funds for the National Central Universities (No. 2014ZZ0052) for their financial support. The Applied Science and Technology Development Project of Guangdong Province (No. 2016B020240005).

Supplementary material

10924_2016_884_MOESM1_ESM.doc (4.4 mb)
Supplementary material 1 (DOC 4519 kb)

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Liang Qi
    • 1
  • Shi-chuan Wu
    • 1
  • Jian-hua Cheng
    • 1
    Email author
  • Yong-you Hu
    • 1
    • 2
  1. 1.Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and EnergySouth China University of TechnologyGuangzhouChina
  2. 2.State Key Lab of Pulp and Paper Engineering, College of Light Industry and Food ScienceSouth China University of TechnologyGuangzhouChina

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