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Abstract <p>Low strength wastewaters (LSW) are those that have a chemical oxygen demand COD&#xa0;&lt; 1000 mg/L. Nitrogen and phosphorus are the major nutrients present in LSW in addition to the organic carbon. The present study was undertaken to develop an optimal combined treatment system for removing nitrogen from LSW at high hydraulic loading rates as there are hardly any reports on the same. The biological removal of carbon in LSW has been studied in detail earlier using the anaerobic hybrid reactor (HR) and activated sludge process (ASP). The biological nitrogen removal was studied through the conventional route of nitrification process. The effect of different operational parameters was studied to optimize the nitrification in rotating biological contactor (RBC) and aerobic HR. RBC showed better nitrification rate over aerobic HR.</p>

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Development of a High-Rate Biological System for the Complete Treatment (Nitrification) of Low Strength Wastewater

  • 期刊论文

  • 发表日期：

    2025年6月23日

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  • M. Ramesh,
  • T. R. Sreekrishnan,
  • M. Goel,
  • J. S. Sudarsan,
  • S. Nithiyanantham

摘要

Abstract

Low strength wastewaters (LSW) are those that have a chemical oxygen demand COD < 1000 mg/L. Nitrogen and phosphorus are the major nutrients present in LSW in addition to the organic carbon. The present study was undertaken to develop an optimal combined treatment system for removing nitrogen from LSW at high hydraulic loading rates as there are hardly any reports on the same. The biological removal of carbon in LSW has been studied in detail earlier using the anaerobic hybrid reactor (HR) and activated sludge process (ASP). The biological nitrogen removal was studied through the conventional route of nitrification process. The effect of different operational parameters was studied to optimize the nitrification in rotating biological contactor (RBC) and aerobic HR. RBC showed better nitrification rate over aerobic HR.