Identifying flocculation equipment
Identifying flocculation equipment
(OP)
Hi,
Perhaps forum members will indulge a bit of idle curiosity!
I work in the film industry and was recently involved in a shoot at a disused water treatment plant (at the site called Sandford Mill just outside Chelmsford in Essex, in the UK). Much of the equipment was easily identifiable: pumps, pipework, what looked like screw drives for removing sludge from the settling tanks, and hoppers for the flocculating agent. Two settling tanks were still half full of... well, crusty gunk, left after the plant shut down in the early 80s. What's exercised my brain ever since was two large steel drums in square tanks which were unidentifiable to me.

As you can see by the scale of the access ladder, they're pretty large - at least ten or fifteen feet across and probably as deep, in a trapezoidal tank that's twenty-five feet square. Clearly the notched troughs running across the top were to feed water into the tank. There were two of these, each associated with a settling tank.
Can anyone shed any light on what this actually is? Some sort of aerator?
Thanks!
Phil
Perhaps forum members will indulge a bit of idle curiosity!
I work in the film industry and was recently involved in a shoot at a disused water treatment plant (at the site called Sandford Mill just outside Chelmsford in Essex, in the UK). Much of the equipment was easily identifiable: pumps, pipework, what looked like screw drives for removing sludge from the settling tanks, and hoppers for the flocculating agent. Two settling tanks were still half full of... well, crusty gunk, left after the plant shut down in the early 80s. What's exercised my brain ever since was two large steel drums in square tanks which were unidentifiable to me.

As you can see by the scale of the access ladder, they're pretty large - at least ten or fifteen feet across and probably as deep, in a trapezoidal tank that's twenty-five feet square. Clearly the notched troughs running across the top were to feed water into the tank. There were two of these, each associated with a settling tank.
Can anyone shed any light on what this actually is? Some sort of aerator?
Thanks!
Phil





RE: Identifying flocculation equipment
RE: Identifying flocculation equipment
I presume the giant upturned coffee cup is to ensure flow moves gently out at the bottom of the tank, so it has maximum opportunity for solids to settle out on the way up?
P
RE: Identifying flocculation equipment
RE: Identifying flocculation equipment
RE: Identifying flocculation equipment
If you google "solids contact clarifier", you can see examples of this type of clarifier.
http://www.google.com/imgres?sa=X&biw=1280&...