Removal of inorganic pollutants in rainwater by a peat-derived porous material

Yunchul Cho, Sungpyo Kim, Heesoo Park, Sridhar Komarneni, Yongsuk Hong

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Although roof-top runoff water has been considered as an alternative water resource, the harvested rainwater needs to be treated for further use because it usually contains various contaminants such as heavy metals and microbes. The degree of the harvested rainwater quality depends upon its end use such as drinking water and irrigation. Especially, when harvested rainwater is to be used as gray water, a cost effective treatment system is required. Accordingly, the main purpose of this study was to examine the adsorption characteristics of peat, cost-effective biosorbent, for various inorganic pollutants such as ammonium, copper, cadmium and lead from roof-top runoff water. As part of efforts to investigate the sorption properties of peat, batch isotherm tests were carried out under various pH conditions. The characterization of peat was carried out with powder X-ray diffraction, Brunauer-Emmett-Teller, and scanning electron microscope measurements. Both heat-treated peat and non-treated peat appeared to have high sorption capacity for all inorganic contaminants (NH 4 +, Cu2+, Cd2+, and Pb 2+). An interesting finding is that the amount of NH4 + sorbed on the sorbents was slightly higher compared to the other cations. Also, the sorption capacity of the peat sorbents increased with an increase of pH. On the other hand, kinetic data were well described by pseudo-second kinetic model, indicating that removal mechanism of cations by peat-derived sorbents is likely due to chemisorptions. The results of this study suggested that peat-derived porous materials can be used as effective sorbents for removal of cationic inorganic contaminants from harvested rainwater.

Original languageEnglish (US)
Pages (from-to)387-394
Number of pages8
JournalJournal of Porous Materials
Volume21
Issue number4
DOIs
StatePublished - Jan 1 2014

Fingerprint

Peat
Porous materials
Sorbents
Sorption
Impurities
Runoff
Roofs
Cations
Water
Positive ions
Kinetics
Chemisorption
Heavy Metals
Water resources
Cadmium
Ammonium Compounds
Irrigation
Potable water
Drinking Water
X ray powder diffraction

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Cho, Yunchul ; Kim, Sungpyo ; Park, Heesoo ; Komarneni, Sridhar ; Hong, Yongsuk. / Removal of inorganic pollutants in rainwater by a peat-derived porous material. In: Journal of Porous Materials. 2014 ; Vol. 21, No. 4. pp. 387-394.
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Removal of inorganic pollutants in rainwater by a peat-derived porous material. / Cho, Yunchul; Kim, Sungpyo; Park, Heesoo; Komarneni, Sridhar; Hong, Yongsuk.

In: Journal of Porous Materials, Vol. 21, No. 4, 01.01.2014, p. 387-394.

Research output: Contribution to journalArticle

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