ABSTRACT
The project constructed was sand filter; equipment for portable water filtration. This was constructed using a mild steel material. This was because of the excellent high qualities of mild steel such as; durability tensile strength, high corrosion resistance and also relative in cost compare to other special alloyed materials, like stainless steel.
The send filter was chosen to be in cylindrical shap, to ensure a maximum pressure for proper filtration to occur and avoid edges that could attract dirt.
The tap, which was filled in the bottom section of the equipment, was used to run out the filtrate.
Finally the construction of sand filter was successful having an overall dimension in millimeters (mm) with a filtering capacity of 25 liters per day and may be conveniently used by small scale industry.
TABLE OF CONTENT
CHAPTER ONE
INTRODUCTION
Aim and objective
CHAPTER TWO
Literature review
Theory of filtration
Types of filtration
Classification of filter medium
Study of send filter equipment
Description of equipment
CHAPTER THREE
Method of construction
CHAPTER FOUR
Discussion
Problems encountered during construction
Conclusion
Recommendation
Appendices
References
CHAPTER ONE
INTRODUCTION
Filtration is the removal of solid particles from a fluid by passing the fluid through a filtering medium or septum, on which the solids are deposited, example of such filtering medium is known as sand filter.
The fluid may be a liquid or gas; the valuable stream from the filter may be fluid, the solid on both. Sometimes it is neither as when waste solid, must be separated from waste prior to disposal, in chemical laboratory.
In chemical laboratory, filtration is often carried out in a form of buchnor funnel and liquid is sucked through a thin layer of particles using a source of vacuum or even sampler cases, the suspension is pored into a conical funnel filtered unit a filter perper.
Generally, a thick layer of particles or solid particles as to be formed and in order to achieve a high rate of passage of fluid through the solids, high pressure will be required and it will be necessary to provide a far greater area.
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