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A field pilot-scale study of biological treatment of heavy oil-produced water by biological filter with airlift aeration and hydrolytic acidification system

Journal Article


Abstract


  • Heavy oil-produced water (HOPW) is a by-product during heavy oil exploitation and can cause serious environmental pollution if discharged without adequate treatment. Commercial biochemical treatment units are important parts of HOPW treatment processes, but many are not in stable operation because of the toxic and refractory substances, salt, present. Therefore, pilot-scale experiments were conducted to evaluate the performance of hydrolytic acidification-biological filter with airlift aeration (HA-BFAA), a novel HOPW treatment system. Four strains isolated from oily sludge were used for bioaugmentation to enhance the biodegradation of organic pollutants. The isolated bacteria were evaluated using 3-day biochemical oxygen demand, oil, dodecyl benzene sulfonic acid, and chemical oxygen demand (COD) removals as evaluation indices. Bioaugmentation enhanced the COD removal by 43.5 mg/L under a volume load of 0.249 kg COD/m3 day and hydraulic retention time of 33.6 h. The effluent COD was 70.9 mg/L and the corresponding COD removal was 75.0 %. The optimum volumetric air-to-water ratio was below 10. The removal ratios of the total extractable organic pollutants, alkanes, and poly-aromatic hydrocarbons were 71.1, 94.4, and 94.0 %, respectively. Results demonstrated that HA-BFAA was an excellent HOPW treatment system.

Authors


  •   Zhang, Min (external author)
  •   Wang, Junming (external author)
  •   Zhang, Zhongzhi (external author)
  •   Song, Zhaozheng (external author)
  •   Zhang, Zhenjia (external author)
  •   Zhang, Beiyu (external author)
  •   Zhang, Guangqing
  •   Wu, Wei Min (external author)

Publication Date


  • 2016

Citation


  • Zhang, M., Wang, J., Zhang, Z., Song, Z., Zhang, Z., Zhang, B., Zhang, G. & Wu, W. (2016). A field pilot-scale study of biological treatment of heavy oil-produced water by biological filter with airlift aeration and hydrolytic acidification system. Environmental Science and Pollution Research, 23 4919-4930.

Scopus Eid


  • 2-s2.0-84959158734

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4821

Has Global Citation Frequency


Number Of Pages


  • 11

Start Page


  • 4919

End Page


  • 4930

Volume


  • 23

Place Of Publication


  • Germany

Abstract


  • Heavy oil-produced water (HOPW) is a by-product during heavy oil exploitation and can cause serious environmental pollution if discharged without adequate treatment. Commercial biochemical treatment units are important parts of HOPW treatment processes, but many are not in stable operation because of the toxic and refractory substances, salt, present. Therefore, pilot-scale experiments were conducted to evaluate the performance of hydrolytic acidification-biological filter with airlift aeration (HA-BFAA), a novel HOPW treatment system. Four strains isolated from oily sludge were used for bioaugmentation to enhance the biodegradation of organic pollutants. The isolated bacteria were evaluated using 3-day biochemical oxygen demand, oil, dodecyl benzene sulfonic acid, and chemical oxygen demand (COD) removals as evaluation indices. Bioaugmentation enhanced the COD removal by 43.5 mg/L under a volume load of 0.249 kg COD/m3 day and hydraulic retention time of 33.6 h. The effluent COD was 70.9 mg/L and the corresponding COD removal was 75.0 %. The optimum volumetric air-to-water ratio was below 10. The removal ratios of the total extractable organic pollutants, alkanes, and poly-aromatic hydrocarbons were 71.1, 94.4, and 94.0 %, respectively. Results demonstrated that HA-BFAA was an excellent HOPW treatment system.

Authors


  •   Zhang, Min (external author)
  •   Wang, Junming (external author)
  •   Zhang, Zhongzhi (external author)
  •   Song, Zhaozheng (external author)
  •   Zhang, Zhenjia (external author)
  •   Zhang, Beiyu (external author)
  •   Zhang, Guangqing
  •   Wu, Wei Min (external author)

Publication Date


  • 2016

Citation


  • Zhang, M., Wang, J., Zhang, Z., Song, Z., Zhang, Z., Zhang, B., Zhang, G. & Wu, W. (2016). A field pilot-scale study of biological treatment of heavy oil-produced water by biological filter with airlift aeration and hydrolytic acidification system. Environmental Science and Pollution Research, 23 4919-4930.

Scopus Eid


  • 2-s2.0-84959158734

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4821

Has Global Citation Frequency


Number Of Pages


  • 11

Start Page


  • 4919

End Page


  • 4930

Volume


  • 23

Place Of Publication


  • Germany