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January 25, 2021

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Author: Harley Pecker

Environmental Labs / Labs

Determination of COD in Sewage

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the COD of the given sewage sample by Open Reflux method. Apparatus Reflux apparatus of capacity 500m1 with a condenser, Burner or hot plate, 250 or 500mL …

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Environmental Labs / Labs

Determination of BOD of the given sample

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the 5 day Bio-Chemical oxygen demand (BOD5) of the given sewage sample with 2% dilute solution. Apparatus BOD bottles, burette, pipette, conical flask, measuring jar. Reagents Magnesium …

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Environmental Labs / Labs

Determination of Dissolved Oxygen in Water

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the Dissolved Oxygen content present in the given wastewater sample. Apparatus BOD bottles, burette, pipette, conical flask, measuring jar. Reagents Manganous sulphate solution Alkali Iodide azide Concentrated …

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Environmental Labs / Labs

Determination of Calcium-Magnesium Hardness of Water

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the Calcium-Magnesium hardness of given water sample. Apparatus Burette, pipette, conical flask. Reagents EDTA (0.01 M) 1 N NaOH solution Muroxide Significance Small amounts of Ca combat …

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Environmental Labs / Labs

Determination of Total, Permanent and Temporary Hardness of Water

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the Total, Permanent and temporary hardness of given water sample. Apparatus Burette, pipette, conical flask. Reagents 01M EDTA (Ethylene Di-amine Tetra Acetic Acid) Ammonia buffer solution Eriochrome …

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Environmental Labs / Labs

Determination of PH of Water

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the pH of the given water sample. Apparatus Burette, pH paper, pH meter, Glass Beaker, Buffer tablets. Reagents Standard Buffer solutions Theory pH is defined as the …

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Environmental Labs / Labs

Determination of Mineral Acidity and Total Acidity in Water

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the mineral acidity and total acidity of the given water sample. Apparatus Burette, pipette, conical flask, measuring jar. Reagents 02 N Sodium hydroxide (0.02 N NaOH) Methyl …

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Environmental Labs / Labs

Determination of Alkalinity of Water

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the alkalinity of water. Apparatus Burette, pipette, conical flask, measuring jar, volumetric flasks (1000ml, 200ml, 100ml) Reagents 0.02N H2SO4 Methyl orange indicator Phenolphthalein indicator Sodium thio sulphate …

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Engineering Mechanics Labs / Labs

Determination of Concentration of Sulphate

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the concentration of sulphate in water by Turbidimetric method. Apparatus Nephelometer, Magnetic stirrer, Stopwatch, Measuring spoon 0.2 to 0.3 ml capacity, Nessler tubes Reagents Barium chloride: crystals, …

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Environmental Labs / Labs

Determination of Chlorides in Water

July 5, 2020 - by Harley Pecker - Leave a Comment

Aim To determine the chlorides in water by Mohr’s method. Apparatus Burette, pipette, conical flask, measuring jar. Reagents 0141 N Silver nitrate (AgNO3) Potassium chromate (K2Cr04) indicator Theory If water …

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