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Submitted: 14 May 2019
Revised: 01 Jun 2019
Accepted: 14 Jun 2019
First published online: 30 Jun 2019
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Avicenna J Environ Health Eng. 2019;6(1):20-27.
doi: 10.15171/ajehe.2019.03
  Abstract View: 50
  PDF Download: 58

Research Article

Investigation of the Efficiency of Phosphorus Removal Using Anionic Resins From the Continuous Flow in the Waste Stabilization Pond Outlet: A Case Study of Kaboodrahang Wastewater Treatment Plant

Ali Akbar Rahmani Sarmazdeh 1 ORCID logo, Mostafa Leili 2 *

1 Department of Environmental Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
2 Associate Professor, Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
*Correspondence to Mostafa Leili, Email: Email: m.leili@ umsha.ac.ir

Abstract

This research mainly aimed to investigate phosphorus removal from stabilization pond effluent by using anionic resins in the continuous flow mode of operation due to high amounts of phosphorus in the wastewater treatment plant effluent of Kaboodrahang, western Iran, as well as the violation from a prescribed effluent standard to discharge receiving the surface waters. For this purpose, the pilot was made of a plexiglass cylinder and other equipment such as pump and other accessories, as well as Purolite A-100 resin. The reactor effects on the desired study parameters were assessed in two warm and cold seasons. The results showed that the phosphorus concentrations reduced from 7-10 mg/L to 4-7 mg/L and the rate of phosphorus removal was higher in the hot season compared to the cold season. Moreover, the optimum temperature and pH were obtained 21ºC and 8.5, respectively. The mean inlet biological oxygen demand (BOD) was 150 mg/L for both warm and cold seasons, where the highest removal rate of 17% was obtained in the cold season. The mean chemical oxygen demand concentration of the pilot was 250 mg/L for both seasons, and the highest removal rate was observed in the cold season with an efficiency of 18%. Regarding the total suspended solids with the mean inlet of 230 mg/L, the highest removal efficiency was obtained 6% in the warm season.
Keywords: Phosphorus, Stabilization pond, Continuous flow, Anionic resin,
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