The laboratory analysis of 25 mL sample after filtration gave the following data

Question

The laboratory analysis of 25 mL sample after filtration gave the following data: -Weight of the filter disk after drying at 103 degree C and 550 degree C = 5.321 grams - Weight of the filter disk and sample after drying at 103 degree C = 5.374 grams -weight of the filter disk and sample after igniting at 550 degree C = 5.339 grams Determine the concentrations (in mg/L) of: a) total suspended solids (TSS), b) volatile suspended solids (VSS), and c) fixed suspended solids (FSS) of the water sample.

Explanation / Answer

weight of the sample at 103 c = 5.374-5.321= 0.053 g

total suspended solids = 0.053*1000mg / 0.025 L = 2120 mg/L

VSS = ((5.374-5.339)*1000mg) / 0.025 L = 1400 mg/L

FSS = ((5.339-5.321)*1000mg) / 0.025L = 720 mg/L

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