SEDIMENTATION STUDIES

APPARATUSMODEL: TR 01

The unit consists of five equally sized glass cylinders

mounted on a vertical back-panel with illumination from

behind. Measuring scale is provided for each cylinder

to measure the suspension height. Each cylinder may

be removed from the board for filling and mixing of

the solid particles as well as for cleaning.

THIS Sedimentation Studies Apparatus (Model: TR 01) is a bench-top unit designed to allow students

to study the different characteristics of sedimentation. Students shall be able to determine not only the

effects of initial concentration and initial suspension height on sedimentation rates but also the effect of

particle size distribution and the using of flocculating agents. Student shall also be able to construct the settling

rates curves from a single batch experiment.

EXPERIMENT CAPABILITIES

♦ Effects of initial concentration and initial suspension

height on sedimentation rates

♦ Effect of particle size distribution

♦ Effect of flocculating agent

♦ Construction of settling rate curves from a single

batch test

SOLTEQ®Equipment for Engineering Education & Research

Rev1.0 11/05/2011

SOLTEQ

DESCRIPTION

Sedimentation is a process used widely in the

clarification of water and wastewater. The process is

described as follows: At the beginning of a batch

sedimentation process, the solid is uniformly

distributed in the liquid with a total suspension depth

of Z0. After a short while, the solids have settled to

give a zone of clear liquid, zone A and a zone D of

settled solids. Above zone D is a thin transition layer,

zone C, in which the solids content varies from that in

the original pulp to that in zone D. Above zone C is

zone B where the concentration is uniform and equal

to the original concentration. The boundaries between

zones D and C and between C and B are not clear, but

the boundary between zones A and B is usually sharp.

The depth of zones D and A increase as settling

continues. The depth of zone C remains nearly constant,

and that of zone B decreases. Eventually zone B

disappears and solids are all in zones C and D. Finally,

the sedimentation process stop when there are only

two distinct zones, A and D.

The settling rate can be shown on a plot of interface

height (between zone A and B) vs. time. In the

beginning, the settling rate is almost constant. When

zone B disappears, the settling rate decreases and

steadily drops until the ultimate height is reached. In

some cases the interface height keep decreasing for

long hours, and the ultimate height can only be

estimated.

Information from batch tests for such systems forms a

vital part of the optimum design and operation of

industrial sedimentation tanks.

SPECIFICATIONS

Bench:

Formica laminated bench with vertical back-panel for

mounting the glass columns. Illuminated from behind.

Glass Cylinders:

Material : borosilicate glass

O.D. : 54 mm

Thickness : 2.5 mm

Length : 1,000 mm

Quantity : 5 pcs

Cover : top (removable)

bottom (fixed)

Accessories:

Beakers : 2-L, polypropylene

Stop watch

REQUIREMENTS

Electrical Supply : 240VAC/1-phase/50Hz

Water Supply : laboratory mains supply

Sample material : e.g. Kaolin (dried powder form)

Flocculating Agent : e.g. Aluminium Hydroxychloride

Digital Balance

OVERALL DIMENSIONS

Height : 1.20 m

Width : 0.75 m

Depth : 0.41 m

MANUALS

The unit is supplied with Operating and Experiment

manuals in English giving full description of the unit,

summary of theory, experimental procedures and

typical results.

SOLTEQ®Equipment for Engineering Education & Research

Rev1.0 11/05/2011

Our range of teaching equipment can be complemented with our

SOLDAS and SOLCAL software.

SOFTWARE & E - LEARNING

SOLDASTM - Supervisory Control & Data Acquisition

- Data Logging

- Signal Analysis

- Process Control

- Real-Time Display

- Tabulated Results

- Graph of Experimental Results

SOLCALTM - Computer Aided Learning

- Multimedia Features

- Interactive

- Graphic Simulation

- Experiment Result Samples

- Full Experiment Manuals

SOLTEQ®

Contact us for a catalog CD

SOLUTION ENGINEERING SDN. BHD.(Co. No. 174876-M)

Sales Office :

No.3, Jalan TPK 2/4, Taman Perindustrian Kinrara,47100 Puchong, Selangor Darul Ehsan, Malaysia.Tel. No. : +(603) 80758000Fax. No. : +(603) 80755784

R&D Office :

G-2A, Incubator 3, Technology Park Malaysia,Bukit Jalil, 57000 Kuala Lumpur, Malaysia.Tel. No. : +(603) 8996 0023

Email : solution@solution.com.myWeb site : http//www.solution.com.my/

AGENT:

Equipment for Engineering Education & Research

BUATAN MALAYSIA

Rev1.0 11/05/2011