Humic Acid Adsorption by Adsorbent Granule Derived From Sludge of Water Supply Production

Authors

  • Supawadee Noinumsai
  • Soydoa Vinitnantharat Division of Environmental Technology School of Energy, Environment and Materials King Mongkut's University of Technology Thonburi 123 Prachauthit road, Thungkru Bangmod Bangkok Thailand

Abstract

This research aims to use sludge from water supply production as an  adsorbent granule for humic acid treatment by improving adsorbent granule. The adsorbent granules were improved by mixing with activated carbon at the ratio sludge : activated carbon of 99:1, coating with chitosan and coating with cationic surfactant. Results revealed that all improved adsorbent granules had lower surface areas but  higher pore size and pore volume.             The highest  humic acid adsorption capacity was found at the adsorbent granule mixed with activated carbon and coated with surfactant. The maximum adsorption capacity of 11.338 Hazen/g was found for Langmuir model.                 This adsorbent at the dosage of 30 g/L could adsorb color in natural water from 40 and 30 Hazen to 0.5 and 0.45 Hazen, respectively.Keywords :  adsorption, humic acid, sludge, water Quality

Author Biography

Soydoa Vinitnantharat, Division of Environmental Technology School of Energy, Environment and Materials King Mongkut's University of Technology Thonburi 123 Prachauthit road, Thungkru Bangmod Bangkok Thailand

Associate Professor at the Division of Environmental Technology, KMUTT. Specialized in water and wastewater treatment, environmental management such as carbon footprint and environmental index

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Published

2017-05-19