To determine the amount of Total Solids, Suspended Solids & Dissolved Solids of given sample of water

To determine the amount of Total Solids, Suspended Solids & Dissolved Solids of given sample of water

Apparatus Required: Table, filter paper, measuring cylinder, heater, porcelain dish, funnel, oven, weighing machine, beaker etc.

Theory: Total Solid is the summation of dissolved solid & suspended solid. 

Procedure:  

1.     Take the weight of porcelain dish (M₁).

2.     Fill 50 ml water sample in it.

3.     Place dish on stream bath & evaporate it till dryness.

4.     Cool it & weigh it with residue (M₂)

5.     Take 50 ml water sample again.

6.     Take filter paper & weigh it (M₃)

7.     Filter water through filter paper.

8.     Keep filter paper with residue in oven & evaporate till dryness.

9.     Weigh filter paper with residue (M₄)

Observation:

Volume of water sample in each test: 50ml

Mass of empty dish: M₁

Mass of dish + dry residue: M₂

Mass Of Filter Paper: M₃

Mass of filter paper + dry residue:  M₄

Computations:

Suspended Solids in 50 ml sample: (M ₄+ M₃) gm

Concentration Of Suspended Solids:

 [(M₄-M₁)x50]x1000 ppm  = x ppm

Total solids in 50 ml sample: (M₂ –M₁ ) gm

Concentration Of Total Solids:

  [(M2-M₁)x50]x1000 ppm  = y ppm

Concentration Of Dissolved Solids: (y-x) ppm

Author : Unknown

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