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The Effect of Sewage Effluent on the Permeability of Soil

The Effect of Sewage Effluent on the Permeability of Soil

Project / Seminar Material
Reference ID: PS-12892-TM

DEDICATION

This research material titled “The Effect of Sewage Effluent on the Permeability of Soil” is dedicated to God for his enabling grace, and to all computer enthusiasts who contributed to make life a pleasant experience during my research documentation.

ACKNOWLEDGEMENT

I extend my sincere gratitude to all those who contributed to the completion of this project. Special thanks to my Supervisor (Name of your Supervisor), the Head of Department (Name of your HOD), the Lecturers in the department of Civil Engineering, Book Authors and Profound Scholars of existing or related project material on “The Effect of Sewage Effluent on the Permeability of Soil” for their invaluable guidance, support, and expertise throughout the journey.

I am also grateful to your study area (mention any funding organizations, if applicable) for their financial assistance. This research would not have been possible without the encouragement and assistance of some stakeholders (mention any mentors, teachers, or colleagues). Additionally, I would like to acknowledge the understanding and patience of my family and friends during this endeavor. Your unwavering support has been a constant source of motivation. Thank you all for being part of this meaningful endeavor.

The Effect of Sewage Effluent on the Permeability of Soil

TABLE OF CONTENTS

PRELIMINARY PAGES

CHAPTER ONE:

Introduction.

  • 1.1 Definition of terms
  • 1.1.1 Permeability
  • 1.1.2. Sewage effluent
  • 1.1.3. Compaction
  • 1.1.4. Failure
  • 1.2. Aims and objectives
  • 1.3. Scope of the research

CHAPTER TWO:

Literature Review

  • 2.1 General overview
  • 2.2 Factor affecting permeability of soil
  • 2.2.1 Effect of grain size
  • 2.2.2 Effect of properties of pore fluid
  • 2.2.3 Effect of void ratio
  • 2.3. The effect of pollution on permeability

CHAPTER THREE:

Methodology

  • 3.1 Collection of samples
  • 3.2 Laboratory analysis
  • 3.2.1 Determination of pollutal strength of effluent
  • 3.2.2 Determination of natural moisture content of soil
  • 3.2.3 Compaction test
  • 3.2.4 The permeability test

CHAPTER FOUR:

Result And Discussion

  • 4.1 The BOD value of sewage
  • 4.2 The natural moisture content of the soil sample
  • 4.3 The optimum moisture content(OMC) of the sample
  • 4.4 The result of the permeability test

CHAPTER FIVE:

Conclusion And Recommendation.

  • Conclusion
  • Recommendation
  • REFERENCES

ABSTRACT

The ignorant of the effect of sewage effluent on the permeability and other engineering properties of soil has to a level, reduced the pace of development in terms of technology.

The wide use of soil, irrespective of the type in virtually all civil engineering projects across the globe today has given rise to numerous researches on way of improving the properties to meet the intended use. Thus, this project examines the effect of sewage effluent contamination on the permeability of the soil.

Permeability is known to depend among other factors, on the void ratio and porosity of the soil sample. However, it has no effect on the affinity of the soil for water.

It follows that factors which increases the void ratio of a soil sample, also increases its permeability as more water is likely to pass through soil with larger voids.

Since sewage effluent is liquid pollution, which contains some microscopic solid particles, these particles tend to plug up pore passages and at the same time cause a decrease of permeability with time.

This shows that sewage effluent, although is very important to soil users in agriculture, its effect on the permeability and other engineering properties is not commendable.

The Effect of Sewage Effluent on the Permeability of Soil

CHAPTER ONE

Introduction

1.1. Definition Of Terms:

1.2.1.1.1 Permeability:

This is the property of soil which permit flow of water through it’s inter connecting voids. Permeability is an important engineering property, which governs the rate of flow of aquifer. Hence, permeability in its simplest term is the ease with which water can flow through soil.

1.1.2. Sewage effluent

Sewage is the wastewater of a community consisting of human excreta, urine and sullage. Solid forms a very small percentage (0.1%) of fresh sewage. Sewage may contain pathogenic organisms, organics and nutrients. Hence, sewage must be treated before discharge in order to prevent pollution of surface and underground water source. Sewage exerts biological oxygen demand in rivers, which depletes oxygen. Besides, being rich in nutrients (mainly nitrogen and phosphorus), sewage causes in receiving water algal bloom and autrophication. Generally, supplying it with oxygen treats wastewater, so that bacteria may utilize the waste as food.

1.1.3. Compaction:

Compaction means processing the soil particle close to each other by mechanical methods. Air during compaction, is expelled from the void space in the soil mass and, therefore, the mass density is increased. Compaction of soil mass is done to improve its engineering properties. Compaction generally increases the shear strength of the soil, and hence the stability and bearing capacity. It is also useful in reducing the compressibility and permeability of the soil.

Compaction of soil is required for the construction of earth damage canal embankments, highways, runaway, and in many other engineering applications.

1.1.4. Failure:

Dense sand shows initially a volume decrease in a drained test, but as the strain increases, the volume starts increasing. The loose sand shows a volume decrease throughout.

In case of loose sand, the specimen bulges and ultimately fails by sliding simultaneously on numerous planes. The failure in this case is known as brittle failure.

1.2 Aims and objectives

Most ancient structures collapse, mainly due to lack of knowledge on permeability. Properties such as permeability help an engineer, to determine the suitability of soil for some engineering works.

Hence, modern civil engineering works allows for site investigation, which includes the determination of the permeability relative to the soil which would be used for the work.

The main aims of this research are.

  1. To determine the maximum dry density (MDD) of soil, thus increasing its shear strength and bearing capacity.
  2. To determine the rate of seepage of water through a given soil sample.
  3. To determine how permeability of soil is affected by sewage effluent of different levels of pollutal strength.

1.3 Scope of the research

This research will be carried out using soil sample, collected by digging one meter below the ground level, from a farm land located nearby the junior staff quarters. The sewage effluent will be collected from the university of Nigeria treatment tank, by varying the quantity of sewage used.

…

CHAPTER TWO

2.0 Literature Review

2.1 Introduction

This chapter focuses on the review of related literature. A literature review includes the current knowledge as well as theoretical and methodological contributions to a particular topic. It documents the state of the art with respect to the topic you are writing. It surveys the literature in the topic selected. In this research work the literature review includes the …

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