Characteristics and application of waste residue from the synthetic rutile industry in the treatment of wastewater

Zheng Yuan, Grant Douglas, Laura Wendling, Ying He Jiang

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A series of analyses were conducted to characterise neutralized acid residue from the synthetic rutile industry. Column sorption experiments were conducted to investigate the attenuation of DOC and nutrients in wastewater using neutralized acid residue. After 145 days, DOC, TP, PO4-P, TN, NH3-N, NOx-N and DON in neutralized acid residue/sand column eluent were reduced by 88.9%, 94.9%, 99.1%, 63.5%, -107.3%, 71.2% and 77.7%. DOC, TP, PO4-P, TN, NH3-N, NOxN and DON in sand column eluent were reduced by -0.3%, -50.1%, -44.8%, -10.8%, -298.2%, 86.3% and -28.5%.The calculational removal rate of DOC, TP, PO4-P, TN, NH3-N, NOx-N and DON by neutralized acid residue are 88.9%, 96.6%, 99.4%, 67.1%, 47.9%, -110.1% and 82.7%. Neutralized acid residue exhibits good sorption of DOC and nutrients. Neutralized acid residue may be of benefit in reducing water pollution.

Original languageEnglish
Pages (from-to)70-74
JournalWuhan Ligong Daxue Xuebao
Volume32
Issue number24
DOIs
Publication statusPublished - 30 Dec 2010
MoE publication typeA1 Journal article-refereed

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Keywords

  • DOC
  • Neutralized acid residue
  • Nutrients
  • Synthetic rutile industry
  • Water pollution treatment

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