## Description

it is a water resources lab report, the lab is about analysis of sedimentation, you need to view the lab manual to understand what the is about, then compute the data, then view requirements and content of the report, files all uploaded

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## Explanation & Answer

Attached.

1

Sedimentation Lab Report

Institutional Affiliation

Date

2

Table of Contents

Abstract ................................................................................................................................................... 3

Introduction ............................................................................................................................................. 4

Background Statement ........................................................................................................................ 4

Objectives ........................................................................................................................................... 5

Overview ............................................................................................................................................. 5

Procedures and Methods ......................................................................................................................... 5

Equipment and Materials .................................................................................................................... 5

Experimental Procedures .................................................................................................................... 6

Discrete Particle Settling................................................................................................................. 6

Flocculent Settling .......................................................................................................................... 7

Data Analysis ...................................................................................................................................... 7

Discrete Particle Settling................................................................................................................. 7

Flocculent Settling .......................................................................................................................... 9

Application ........................................................................................................................................ 10

Results and Discussion ......................................................................................................................... 11

Discrete Particle Settling................................................................................................................... 11

Tables ............................................................................................................................................ 11

Graphs ........................................................................................................................................... 12

Flocculent Settling ............................................................................................................................ 14

Table ............................................................................................................................................. 14

Graphs ........................................................................................................................................... 15

Discussion ............................................................................................................................................. 16

Discrete Particle Settling................................................................................................................... 16

Flocculent Settling ............................................................................................................................ 17

Conclusions ........................................................................................................................................... 17

References ............................................................................................................................................. 19

Appendix ............................................................................................................................................... 20

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Abstract

The purpose of this lab was to use settling column experiments to observe and characterize

the settling of discrete and flocculent particles. The theoretical settling velocities were to be

compared with the experimental settling velocities. Results of the experiment were to be

applied in the design of full-scale sedimentation tanks. Settling velocity versus particle

diameter curves were developed for the discrete settling particles. The tests indicated that the

conditions of flow for the three balls sizes were transition and turbulent, and employed

appropriate equations to determine the drag coefficient and velocity of settling. Removal

percentage curves were developed for the flocculent settling based on time and surface

loading. The removal percentage increased with increase in detention time but decreased with

an increase in surface rate load. There was a slight variation between experimental and

theoretical settling variations. This could have resulted from errors due to temperature

variations in the water. The results were applied in the full-scale sedimentation tank design

problems.

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Introduction

Background Statement

In water and wastewater treatment, several stages of treatment are involved. Sedimentation is

one of the stages ...