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Investigation of technical and economic analysis of electrocoagulation process for the treatment of great and small cattle slaughterhouse wastewater

Date

2014

Author

Ozyonar, Fuat
Karagozoglu, Bunyamin

Metadata

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Abstract

In this study, the treatment of slaughterhouse wastewater by electrocoagulation (EC) was investigated in batch reactor using aluminum and iron electrodes. Effects of operating parameters for the EC process such as initial pH solution (3-8), current density (20-140A/m(2)) and operation time of EC (2.5-60 min) were evaluated for optimum operating conditions. The removal efficiencies for COD, oil-grease and turbidity in slaughterhouse wastewaters were obtained to be 78.3, 94.7, and 90.2% for aluminum and 76.7, 92.8, and 95.9% for iron electrodes at the optimum conditions (pH 4, 100A/m2, and 20min EC time for Al; pH 6, 100A/m(2), and 20min EC time for Fe). Operation costs for removal of slaughterhouse wastewater at the optimum conditions were calculated for Al electrodes as 2.757$/m(3) and for Fe electrodes as 0.872$/m(3). Besides, the treatment performance of EC and chemical coagulation (CC) processes were compared. For CC process, aluminum sulfate, ferric chloride, and ferric sulfate as coagulants were compared. COD, oil-grease, and turbidity removal efficiencies were 36.4, 93.6, and 89.8% for Al-2(SO4)(3).18H(2)O (pH 7-200mg Al3+/l), 27.6, 88.6, and 85.9% for FeSO4.7H(2)O(pH 7-200mg Fe3+/l), and 37.4, 89.9, and 75.6% FeCl3.6H(2)O (pH 7-100mg Fe3+/l), respectively. As a result, the EC process is more effective in COD, oil-grease, and turbidity removal efficiencies than CC process.

Source

DESALINATION AND WATER TREATMENT

Volume

52

Issue

01.Mar

URI

https://dx.doi.org/10.1080/19443994.2013.787373
https://hdl.handle.net/20.500.12418/8349

Collections

  • Makale Koleksiyonu [5200]
  • Makale Koleksiyonu [5745]
  • Öksüz Yayınlar Koleksiyonu - WoS [6175]



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