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Wastewater Treatment and Reuse in Industrial Settings

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Wastewater Treatment and Reuse in Industrial Settings

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Questions and Answers

Where is the treatment plant located?

Near the Cape Metropolitan Council

Adjacent to the Potsdam sewage works

In the city center of Milnerton

On the premises of Chevron refinery (correct)

What is the primary purpose of the DAF treatment?

To act as an absolute barrier to suspended solids

To reduce suspended solids and potential membrane foulants (correct)

To remove dissolved salts

To produce a water quality suitable for human consumption

What is the purpose of the UF plant?

To reduce the Total Organic Carbon (TOC) from the treated sewerage water

To produce a water quality suitable for re-use by the Chevron refinery

To reduce the risk of RO membrane fouling (correct)

To remove dissolved salts from the water

What is the purpose of the RO plant?

To remove dissolved salts from the water Signup and view all the answers

What is the quality of the water produced by the treatment process?

More or less equivalent to the current domestic water quality Signup and view all the answers

Who does ImproChem sell the upgraded water to?

Chevron refinery Signup and view all the answers

What is the primary purpose of the DAFs in the water treatment process?

To remove suspended solids from the water by floating and sedimentation Signup and view all the answers

What percentage of the DAF supernatant is recycled to the saturator?

25% Signup and view all the answers

What is the expected recovery of the UF plant?

88% Signup and view all the answers

What is the primary purpose of adding coagulants to the water in the flocculation chamber?

To neutralize the charge of the colloidal particles Signup and view all the answers

What is the maximum capacity of the plant designed to produce at a conductivity of 240 uS/cm?

320 m3/hr Signup and view all the answers

What is the purpose of the flocculation chamber in the water treatment process?

To prevent fouling of the UF and RO units by removing suspended solids Signup and view all the answers