Skimoil Coal Ash Pond Decanter SkimmerIndonesia Industrial Parts

Descriptions

Skimoil Coal Ash Pond Decanter Skimmer has developed some better methods and equipment for decanting ash ponds. Our floating weir skimmers (FWS) originally designed as surface oil skimmers, simply drain an area from the top down and remove whatever is flowable on/from the surface of the water. In the ash ponds, we found that the FWS with their laminar flow-do a great job of removing surface water without stirring up all the stuff under the water surface.

We just had to scale these up some to deal with the large flow rates needed to efficiently drain the ash ponds. There’s a lot of water in/on these coal ash ponds. We needed over 5 times our normal oil skimming flow rates, so we manifolded 3 of our largest FWS (#FWS00A381) skimmers together to get the high flow rates……..and they are awesome.

Back to the drawing board! We had to scale up and design our new Big Ass Surface Skimmer (BASS) that has a 36” wide weir and an 8” outlet and has projected flow capabilities of up to 1500 GPM. (Pictured Below) We prefer not to make these any larger due to ergonomics and the fact that they have to be installed by men in usually small boats.

These new BBSS units can fit into the back of an SUV for easy transport. Normal operations include a powerful pump on shore hooked to a large (10”) HDPE pipe extending far into the pond and connecting to the skimmers.

The beauty of our floating Big Ass Surface Skimmer is that it has only one moving part-the hinged weir and it can work with any pump that can pull suction. We’ve had the floating weir skimmers on the market for over 20 years, so they are a well-proven and reliable surface skimmer that automatically self-adjusts to the pump flow rate, allowing the operator to take as little as 1/8” to over 3” of water off the surface without affecting the underlying water or in the case the underlying settled coal ash.

We now have these floating weir skimmers working in several power plants dewatering ash ponds. Ironically several years ago several power plants were using the smaller FWS units to remove floating centospheres of ash from the surface of water in many similar ponds.

Like almost everything else that we all used to do, we’ve found a better way to do it today. This is certainly true of coal-fired power plants and their waste ash disposal and storage. Back when the power plants started using ponds for storing the ash under a water cap it was probably the recognized best method. Out of sight and out of mind. Somewhat.

Source: www.skimoil.com

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