Natsu with Lisanna, watching over their Dragon Egg. One day, Natsu found an egg in the forest east of Magnolia. Thinking it to be a Dragon Egg, Natsu took it to the guild and asked Makarov to make it hatch, but Makarov and Erza told him that he was the only one that could make the egg hatch; through love and care.
1 As a Decompression Chamberâ This is a hyperbaric chamber used by surface-supplied divers (commercial divers mostly) to make their decompression stops.  As Recompression chamberâ A hyperbaric chamber is used to treat or prevent patients suffering from decompression sickness.
Grit Chambers (Horizontal, Aerated & Vortex). Grit removal, which involves separating foreign particles such as sand and gravel is very important and needs to be carried out in every wastewater treatment system.n order to achieve this, wastewater basically has to enter the chamber tangentially and as such a centrifugal force will ensure that the grit is taken out. Find out more about other forms of physical treatment in wastewater plant such as the use of Dissolved Air Flotation System.