A groundwater treatment plant adds chlorine to oxidize iron and manganese for removal by filtration. The groundwater temperature during peak summer usage is 10°C and the pH is 7.8. Based on a tracer study, the t10 time from chlorine addition in the contract tank through filtration is 1.8 min. The t10 time in the clear well during peak pumpage is 8.0 min. The chlorine residual in the filter effluent is 0.8 mg/l and in the clear-well effluent is 0.4 mg/l. If the groundwater supply has to meet a 3-log virus inactivation, is the disinfection adequate? (show your work. You may clearly write your work down on a paper, take a picture and upload it. No grade if you don't show clearly your work).

A groundwater treatment plant adds chlorine to oxidize iron and manganese for removal by filtration. The groundwater temperature during peak summer usage is 10°C and the pH is 7.8. Based on a tracer study, the t10 time from chlorine addition in the contract tank through filtration is 1.8 min. The t10 time in the clear well during peak pumpage is 8.0 min. The chlorine residual in the filter effluent is 0.8 mg/l and in the clear-well effluent is 0.4 mg/l. If the groundwater supply has to meet a 3-log virus inactivation, is the disinfection adequate? (show your work. You may clearly write your work down on a paper, take a picture and upload it. No grade if you don't show clearly your work).

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.

Question

A groundwater treatment plant adds chlorine to oxidize iron and manganese for removal by
filtration. The groundwater temperature during peak summer usage is 10°C and the pH is 7.8.
Based on a tracer study, the t10 time from chlorine addition in the contract tank through
filtration is 1.8 min. The t10 time in the clear well during peak pumpage is 8.0 min. The
chlorine residual in the filter effluent is 0.8 mg/l and in the clear-well effluent is 0.4 mg/I. If the
groundwater supply has to meet a 3-log virus inactivation, is the disinfection adequate? (show
your work. You may clearly write your work down on a paper, take a picture and upload it. No
grade if you don't show clearly your work).

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