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Performance Evaluation of Oxidation Ditch at Guhyeshwori (Kathmandu)

Title: Performance Evaluation of Oxidation Ditch at Guhyeshwori (Kathmandu)

Academic Paper , 2020 , 100 Pages

Autor:in: Dr. Dhundi Raj Dahal (Author)

Environmental Sciences
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The objective of the study is to evaluate the Performance of oxidation Ditch at Guhyeshwori (Kathmandu). Physicochemical and biological parameters were measured and analyzed. Study covered the performance of Grit Chamber and biological treatment process (oxidation ditch and secondary clarifier).

The major problems of Bagmati River are pollution because of unlimited domestic, hospital, and industrial wastes as well as construction waste dumping into river course. GWWTP has recently completed the treatment facilities, which covers the part of the major drainage of river Bagmati.

This carrousel type of oxidation ditch is the first and only one in Kathmandu. One of the guiding factors for future recommendation in wastewater treatment could be the performance of this plant. Therefore the performance evaluation of the oxidation ditch in this environment has thought to be performed as a study.

Bagmati Area Sewerage Construction/Rehabilitation Project has constructed an Oxidation Ditch at the right bank of Bagmati River near Guhyeshwori Temple and it is in operation for more than a year. Since it is the first of its kind, performance study and evaluation will help to establish other treatment units in the future.

From the very beginning, the performance of the treatment plant was monitored. The study was included in the analysis of the physicochemical and biological parameters. BOD5, COD, MLSS, MLVSS, TKN, Ortho Phosphate, DO, TSS, and SS were analyzed and these parameters were used for the evaluation of the performance of the grit chamber and biological units. During the eleven months, five cycles of two to four hours of composite samples were analyzed.

Excerpt


Inhaltsverzeichnis

  • CHAPTER ONE
    • INTRODUCTION
    • Background
    • Rationale of the Study
    • Objective
    • Scope of the Work
  • CHAPTER TWO
    • LITERATURE REVIEW
    • Biological Treatment with oxidation Ditch
    • Characteristics of waste
      • Physical Characteristics
      • Chemical Characteristics
      • Biological characteristics
    • Process on Oxidation Ditch
    • Design of Oxidation Ditch
      • Inlet Chamber
      • Grit Chamber
      • Oxidation Ditch
      • Sludge Drying Beds
      • Effluent
  • CHAPTER THREE
    • MATERIALS AND METHODS
    • Methodology
    • Flow Measurement
    • Sampling Port
    • Sampling Technique
    • Collection and Preservation of Samples
  • CHAPTER FOUR
    • RESULTS AND DISCUSSION
    • Grit Chamber
    • Oxidation Ditch
    • Overall performance
    • Financial Comparison
  • CHAPTER FIVE
    • CONCLUSION AND RECOMMENDATIONS
    • Conclusion
    • Recommendations

Zielsetzung und Themenschwerpunkte

Die vorliegende Arbeit befasst sich mit der Bewertung der Leistung eines Oxidation Grabens an der Guhyeshwori Kläranlage in Kathmandu, Nepal. Die Studie analysiert die Effizienz der Kläranlage in Bezug auf die Reduktion von organischen Stoffen und anderen Schadstoffen im Abwasser. Ziel ist es, die Funktionsweise des Oxidation Grabens zu verstehen und Empfehlungen für eine Verbesserung der Effizienz und des Betriebs der Anlage zu geben.

  • Bewertung der Leistung des Oxidation Grabens zur Abwasserbehandlung
  • Analyse der physikalischen, chemischen und biologischen Eigenschaften des Abwassers
  • Bewertung der Effizienz des Oxidation Grabens bei der Reduktion von organischen Stoffen und anderen Schadstoffen
  • Untersuchung der Einflussfaktoren auf die Leistung des Oxidation Grabens
  • Entwicklung von Empfehlungen zur Verbesserung der Effizienz und des Betriebs der Kläranlage

Zusammenfassung der Kapitel

Das erste Kapitel der Arbeit führt in das Thema der Abwasserbehandlung in Entwicklungsländern ein und beleuchtet die Bedeutung der Guhyeshwori Kläranlage für die Wasserqualität des Bagmati Flusses. Kapitel Zwei bietet einen Überblick über die Literatur zur biologischen Abwasserbehandlung mit Oxidation Gräben, insbesondere im Hinblick auf die spezifischen Eigenschaften des Abwassers in Kathmandu. In Kapitel Drei werden die verwendeten Materialien und Methoden beschrieben, darunter die Messung des Abwasserstroms, die Probenahmetechnik und die Analysemethoden. Kapitel Vier präsentiert die Ergebnisse der Untersuchung, die die Effizienz des Oxidation Grabens bei der Reduktion von organischen Stoffen und anderen Schadstoffen beleuchtet.

Schlüsselwörter

Die Arbeit behandelt die Themen Abwasserbehandlung, Oxidation Graben, Wasserqualität, organische Belastung, Nährstoffentfernung, biologische Prozesse, Kläranlage, Guhyeshwori, Kathmandu, Nepal. Die Studie analysiert die Leistung der Kläranlage und befasst sich mit den Herausforderungen der Abwasserbehandlung in Entwicklungsländern.

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Details

Title
Performance Evaluation of Oxidation Ditch at Guhyeshwori (Kathmandu)
Author
Dr. Dhundi Raj Dahal (Author)
Publication Year
2020
Pages
100
Catalog Number
V960314
ISBN (eBook)
9783346309631
ISBN (Book)
9783346309648
Language
German
Tags
performance evaluation oxidation ditch guhyeshwori kathmandu
Product Safety
GRIN Publishing GmbH
Quote paper
Dr. Dhundi Raj Dahal (Author), 2020, Performance Evaluation of Oxidation Ditch at Guhyeshwori (Kathmandu), Munich, GRIN Verlag, https://www.grin.com/document/960314
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