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Sanitary Engineering laboratory "jar test " Write the significance of pH in coagulation using alum. Discuss the importance of finding the optimum dosage.

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter5: Separation Processes

Section: Chapter Questions

Problem 5.18P

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Sanitary Engineering laboratory

"jar test "

Write the significance of pH in coagulation using alum.

Discuss the importance of finding the optimum dosage.

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Il Consider the capability of a process that puts pressurized grease in an aerosol can. The design specification calls for an average of 50 pounds per square inch (psi) of pressure in each can with an upper tolerance limit of 56psi and a lower tolerance limit of 46psi. A sample is taken from production, and it is found that the cans average 51psi with a standard deviation of 2psi. Find the following unknowns. 1. Capability Index (Cpk) 2. Is the process capable at the 30 level? 3. What is the probability of producing a defect? Hind: use the standard normal table as seen below.
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Determine plasticity index if liquid limit is 40% and plastic limit is 30%
can you answer please?
Calculate the ThOD of a 300 mg/L solution of CsH7O₂N.
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Subject is Environmental Engineering
Chose the correct answer 1- The Unit measurement of suspended solids is ...A- kg 2- The Unit measurement of Turbidity is A- °C is B-m B-NTU C- mg/L C-K 3- The Unit measurement of pH www A-mg/L 4- The Unit measurement of alkalinity is .. 5-Non toxic metals includes 6-Dissolved materials size is lees than A- 10 mm D- none of above D- none of above D- none of above B- p.p.m C- g/m³ D- none of above A- m/sec B- m³/sec C- mg/L A-Chromium B- Mercury C- Calcium D- none of above B- 106, C-108 mm D- none of above mm 7- Public standards of Hardness in drinking water is A-500 mg/L B-50 mg/L C-100 mg/L D- none of above 8- Alkalinity species includes are A-HCO3 B-CO3 C- OH D-All of above ... 9- Dental cavities in children can prevented when Drinking water has Fluoride concentration of A- 0.1 mg/L B- 1 mg/L C- 10 mg/L D- none of above 10- Toxic metals are metals that harmful to humans even when exists in concentration of .. A- Small B-Large C-zero D- none of above
Discuss any test done on the five different materials of wastewater treatment plant
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