Flocculation
The particles that form in the water as a result of the flocculation process.
What is a floc?
The word for what clarification was previously called.
What is sedimentation?
What StaRS filtration stands for.
What is Stacked Rapid Sand Filter?
The primary source of energy in the AguaClara treatment plant.
What is gravity?
What one ocean said to the other.
What is Nothing, it just waved!
A class of compounds that inhibits our flocculation process, so much that we have a whole subteam based on it!
What is dissolved organic matter?
The angle that the plate settlers are set at.
What is 60º?
This is where particles get caught in the filter.
What is on the sides of filter pores?
The final stage of the AguaClara treatment process.
What is chlorination?
The community points team that is currently in the lead.
What is team Squidward?
The name for the grooved plates in the flocculator
What are baffles?
These were designed to provide laminar flow initially into the clarifier.
What are the inlet manifold diffusers?
This is what the sand becomes during backwash.
What is a fluidized bed?
The processes that happen right before and right after flocculation.
What is coagulation/rapid mix and clarification?
The EPA and WHO drinking water standards for maximum turbidity.
What is 0.3 NTU and 5 NTU (or 1 NTU)?
The reason that particles of different sizes won't collide with each other.
What is shear flow or boundary layer?
The approximate upflow velocity through the plate settlers.
What is 1 mm/s
The number of inlet and outlet pipes in a single StaRS filter.
What are 4 inlet pipes and 3 outlet pipes?
What process does flocculation and clarification make more efficient, and what would happen to that process without them?
The number of currently operational AguaClara treatment plants worldwide.
What is 25?
The approximate residence time of in an AguaClara flocculator. (any value within the general range of values is okay)
What is 2-10 minutes?
The two predominant forces in balance acting on flocs in the clarifier to cause suspension and floc filter creation.
What are gravity and force of fluid flow?
This is inside the backwash pipe to prevent backwashing from occurring when not triggered.
What is compressed/pressurized air?
The main backwash steps.
What is open the backwash valve so the pipe fills with water, water level decreases so water only enters through bottom inlet pipe, water running through becomes clear over time, close the backwash valve so pipe fills with air, water level increases so water enters through all pipes again?
This is what NTU stands for.
What is Nephelometric Turbidity Unit?