This document discusses a study on using sewage sludge waste as an ingredient in brick making. Sewage sludge is currently disposed of through landfilling or used as fertilizer, but improper disposal can cause environmental issues. The objectives of this study are to effectively manage sewage sludge and utilize it in construction materials by incinerating the sludge and using it to make bricks. The study collected sludge from a sewage treatment plant, tested its properties, incinerated the dried sludge, and tested the properties of the resulting ash. Bricks were then prepared with varying percentages of sludge ash added to clay. The prepared bricks were tested and found to meet standards up to 30% sludge ash content replacement of

1. USE OF SEWAGE SLUDGE WASTE AS
INGREDIENT IN MAKING OF BRICK

2. INTRODUCTION
• Sewage Sludge is that obtained after the
• treatment of sewage from sewage treatment
• plant (STP)
• The present scenario is that this treated sludge is
• used for land fills (open and closed), soil
• conditioner and natural fertilizer.
• Most of the city and towns the sewage disposal is
• not proper, improper disposal of this treated
• sludge will cause environmental problems like,
• Seepage of gray water into the ground water etc.,

3. OBJECTIVES
•Effective management of the sludge is a
•challenging problem. Main objective of our project
is to
•Utilize the sewage sludge in making construction
•materials by incinerating sludge

4. LITERATURE REVIEW
•Sludge ash in clay bricks: The appropriate
percentage of ash content for producing quality
brick was in the range of 20 to 40%
•The optimum moisture content is in the range of
15 to 20%
• The molded mixture is fired at 1000 degree
Celsius for 6 hours.

6. WORK DONE
• Collecting sewage sludge from STP >
•Testing the properties of dried sludge
•Incinerating the dried sludge
•Testing the properties of sewage sludge ash
•Particle size distribution of sludge ash
•Preparing the clay bricks

7. COLLECTING SEWAGE SLUDGE FROM
STP
•Sewage sludge is collected from Nashik Sewage
treatment plant agar takli road.
•The collected sludge is from the first drying bed
of the STP.
•The moisture content of the collected raw sludge
is 5.27% so the sample is dried under the natural
heat (sun light) for two days.
• As the sample collected from STP is in the form
of cakes is has bee pulverized to
completely dry the sludge

8. PROPERTIES OF SLUDGE ASH .
•The main aim of our project is to reduce the
contamination made by the sewage sludge, so
the sludge ash is tested for the presence of toxic
elements
•We tested the sludge properties, the results
shows. the toxic elements are with in the limit
•The test results shows the presence of heavy
metals which causes leaching effects are in the
trace level

9. PARTICLE SIZE DISTRIBUTION
•As the sludge collected from the STP is a mixture
of sand particles with sludge, it has to be fine
sieved.
• Sieve used for particle size distribution
•For Brick 0.850mm (Pass through) ASTM 20

10. PROPERTIES OF DRIED SLUDGE
•No harmful emissions are identified since sludge
is used for agricultural purpose as natural
fertilizer.
•But, testing of raw sludge is necessary before
incinerating the sludge.
• Harmful emissions are found once the sludge is
incinerated.

11. INCINIRATOR INCINIRATED
SLUDGE

12. TESTS ON FIRE CLAY BRICKS
•Water absorption
•Efflorescence
•Compressive strength

13. PREPARINGTHE CLAY BRICKS
•Weight of fresh Brick : 4.4kg
•Weight of a well dried brick (Nil moisture): 3.4kg
• Water content: 4.4-3.4 1000gms 1ltr
•Approximately 800ml water is used for a clay brick
Different
percentage of
sludge
Clay Fly ash Water
10 78 12 10liter.
20 68 12 12liter.
30 58 12 12liter.

14. CONCLUSION
• Dry sludge is available free of cost so we will reduce cost of
bricks.
• In this project we have used dry sludge in brick upto 30% by
replacing soil.
• Based on limited experiment investigation concerning the
water absorption and compressive strength of bricks.
• Environmental effect from wastes and disposal problem of the
waste can be reduce or control through this research.
• A better measure by an innovative construction material is
from through this project.

15. REFERENCE
1. Chin-HuangWenga (2003)“Utilization of sludge as brick materials”
2. Hanan Ahmed Fouad (2012)“Manufacturing From WaterTreatment Sludge and Rice HuskAsh
3. Joo-HwaTay(2013) “Bricks Manufactured from Sludge”
4. G. Reddy Babu, N.Venkata Ramana(2013) “Durability of Bricks CastWith Industrial Sludge”
5. Shrikant S Jahagirdar1(2013) “Utilization ofTextile Mill Sludge in Burnt Clay Bricks”
6. Anyakora NkolikaVictoria (2013)“Characterisation and Performance evaluation of water works sludge as
bricks material”
7. SandeepYadav et.al (2014)’ Incorporation of STP Sludge and Fly ash in Brick Manufacturing:An attempt
to save the Environment’
8. Prof.S.S.Razvi,Gopal Bajaj,Vikas Gore (2016)” Partially replacement of clay by stp slude in brick
manufacturing”
9. Miss. ShrutakirtiA. Mahajan (2016) “Utilization ofWaste Sludge in Brick Making”
10. D. Sakthivel, R. Dharunkumarasamy et.al (2018)’ Experimental Investigation On Brick Manufacturing By
Using Sludge & Pulp Production Residue’

16. THANK YOU