A waste water treatment plant produces 950 kg of dry solids per day with 70% of solids being volatile solids with specific gravity of 1.05 and 30% of solids being non- volatile with specific gravity of 2.5. After digestion, volatile solids reduce to 40% of its original and moisture content of digested sludge being 90%. The volume of digested sludge is, m3.

A waste water treatment plant produces 950 kg of dry solids per day with 70% of solids being volatile solids with specific gravity of 1.05 and 30% of solids being non- volatile with specific gravity of 2.5. After digestion, volatile solids reduce to 40% of its original and moisture content of digested sludge being 90%. The volume of digested sludge is, m3.

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter2: Municipal Solid Waste Characteristics And Quantities

Section: Chapter Questions

Problem 2.15P

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Concept explainers

Landfills

The landfill is a site used for the disposal of waste materials. The landfill is a solid waste facility that is often known as a dumping ground. The image below shows a landfill site in Hawaii. Landfilling is the most ancient and common method used for the disposal of waste. For the landfill, a deep trench is constructed in an isolated place away from the city. The trench for landfills is designed properly after analyzing the total population and the waste generation per capita. The waste is dumped into the trench and after every layer of waste, a layer of soil is spread on the top of it.

Question

A waste water treatment plant produces 950 kg of dry solids per day with 70% of
solids being volatile solids with specific gravity of 1.05 and 30% of solids being non-
volatile with specific gravity of 2.5. After digestion, volatile solids reduce to 40% of
its original and moisture content of digested sludge being 90%. The volume of
digested sludge is,
m3.

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