Module II – Water Chemistry | CHE102 Engineering Chemistry

I · IKS II · Water Chemistry III · Advanced Materials IV · Polymers V · Organic & Spectroscopy VI · Energy Materials

Module

II (Two)

Contact Hours

12 Hours

CO Mapped

CO-2

Topics

10 Topics

Pedagogy

T1 · T2

🎯 Course Outcome (CO-2)

Apply principles of water chemistry to evaluate water quality, identify appropriate water treatment methods, and solve problems related to industrial water systems, including hardness determination and water softening processes.

📋 Lecture Plan

Lecture	Topic	CO	Teaching Method
L-1	Introduction and specifications of water; Physical and chemical characteristics; Water quality parameters IntroductionWater Quality	CO-2	Classroom Teaching, PPT
L-2	Hardness of water – concept, types (temporary and permanent hardness); Causes and effects HardnessTemporary & Permanent	CO-2	Classroom Teaching, Class Discussion
L-3	EDTA method for hardness determination – principle, procedure, calculations; Numerical problems EDTA TitrationNumerical Problems	CO-2	Classroom Teaching, Problem Solving
L-4	Alkalinity of water – types (bicarbonate, carbonate, hydroxide); Determination and significance Alkalinity	CO-2	Classroom Teaching, PPT
L-5	Caustic embrittlement – mechanism, causes, and prevention methods Caustic EmbrittlementBoiler Problems	CO-2	Classroom Teaching, Diagram Analysis
L-6	Boiler feed water requirements; Boiler problems: scale and sludge formation – causes, effects, prevention ScaleSludgeBoiler	CO-2	Classroom Teaching, Diagram Analysis
L-7	Conditioning: Carbonate & phosphate conditioning – principle and process Conditioning	CO-2	Classroom Teaching, PPT
L-8	Colloidal conditioning & calgon treatment – mechanism and applications Colloidal ConditioningCalgon	CO-2	Classroom Teaching, Discussion
L-9	Water softening – Lime–Soda process: principle, reactions, cold and hot processes, advantages & limitations Lime-Soda Process	CO-2	Classroom Teaching, Problem Solving
L-10	Water softening – Ion exchange method: principle and working Ion Exchange	CO-2	Classroom Teaching, Diagram Analysis
L-11	Water softening – Zeolite method: principle, reactions, advantages & limitations Zeolite Process	CO-2	Classroom Teaching, PPT
L-12	Water for domestic use – purification steps, chlorination, disinfection; Module revision and numerical problems Domestic WaterRevision	CO-2	Problem Solving, Quiz

📚 Topics Covered

Introduction and specifications of water
Hardness and its determination (EDTA method only)
Alkalinity of water
Caustic embrittlement
Boiler feed water and boiler problems: scale, sludge
Conditioning: Carbonate & phosphate conditioning, colloidal conditioning & calgon treatment
Water softening – Lime–Soda process
Water softening – Ion exchange method
Water softening – Zeolite method
Water for domestic use

📖 Suggested Readings

Rattan, S. – Engineering Chemistry, Arihant Publication
Jain & Jain – Engineering Chemistry, Dhanpat Rai & Sons
Dara, S.S. – A Textbook of Engineering Chemistry, S. Chand

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