Products Wastewater Grit Removal PISTAÂ® Grit Chamber. High removal efficiencies originate from the PISTAÂ® Grit Chamberâs unparalleled hydraulic design, including its flat chamber floor, patented and low-energy axial-flow propeller.ISTAÂ® Grit Chamber. High removal efficiencies originate from the PISTA Â® Grit Chamberâs unparalleled hydraulic design, including its flat chamber floor, patented and low-energy axial-flow propeller.
The Barberton Greenstone Belt in South Africa is estimated at 3.4-3.6 billion years old, and generally regarded as the world's oldest mountains. Their age is indisputedly older than anything in North America (the Appalachians / Blach Hills / Porcupines / Smokies etc) and only Western Australia lays a possible claim.
Here are some of the worldâs oldest and most amazing trees that remain. 1. Old Tjikko (Sweden) Karl Brodowsky/Wikimedia Commons. The worldâs oldest known living tree sprouted sometime during the last Ice Age, roughly 9,550 years ago. This 16-foot spruce in the Dalarna province of Sweden may look more like a Charlie Brown Christmas Tree, but donât be fooled: this little guyâs root system got started back when the British Isles were still connected to Europe by an ice bridge.