Example 5.39 The thickened sludge from previous example 5.71 is to be digested anaerobically in a standard-rate digester. The sludge is known to be about 70 percent organic and 30 percent inorganic in nature. Approximately 60 percent of the organic fraction is converted to liquid and gaseous end products after a 30-d period. The digested sludge has a solids content of 5.0 percent and must be stored for periods of up to 90 d. Determine the volume requirement for a standard rate, single-stage digester.

Example 5.39 The thickened sludge from previous example 5.71 is to be digested anaerobically in a standard-rate digester. The sludge is known to be about 70 percent organic and 30 percent inorganic in nature. Approximately 60 percent of the organic fraction is converted to liquid and gaseous end products after a 30-d period. The digested sludge has a solids content of 5.0 percent and must be stored for periods of up to 90 d. Determine the volume requirement for a standard rate, single-stage digester.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Integrated Solid Waste Management

Integrated Solid Waste Management (ISWM) is a thorough waste suppression, compost, removal and recycling Program. An effective ISWM system considers how to suppress, manage and recycle solid waste in a manner that is most efficiently to protect human health and the surrounding. ISWM system requires evaluation of public wants and demands and then selecting and merging the most effective waste management activities for the proposed demands. The main ISWM activities for solid waste management are Waste prevention, Recycling and Composting, and Combustion and Removal and waste collection in a properly planned, constructed, managed and mitigated landfill areas. Each of these requires careful designing, financing, accumulation, and delivery of activities.

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Example 5.39 The thickened sludge from previous example 5.71 is to be digested
anaerobically in a standard-rate digester. The sludge is known to be about 70 percent organic and
30 percent inorganic in nature. Approximately 60 percent of the organic fraction is converted to liquid
and gaseous end products after a 30-d period. The digested sludge has a solids content of 5.0 percent
and must be stored for periods of up to 90 d. Determine the volume requirement for a standard rate,
single-stage digester.

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