What is the retention time considered for the aerobic zone for the AO process for removing phosphorus?

While designing the demineralisation plant what is considered as the strong basic anion load?

While designing the demineralisation plant what is considered as the weak acidic cation load?

Which of these have a negative electrical charge?

In RO, the solvent passes through the membrane at a much faster rate than the dissolved solids.

What is the minimum temperature required for carbonization?

What is the method used to delay the precipitation of oxidized manganese and iron?

What is the minimum quantity of nitrogen present in untreated wastewater?