| The decantation is going to be very long, necessitating a complete knowledge of the sources. |
| A red precipitate of chromous acetate is formed, which is washed by decantation in water containing carbonic acid. |
| The tertiary air is cleaned, removing the powder, by means of a cyclone or a decantation chamber. |
| The water treatment plant basically consists of pre-conditioning and decantation, filtration, thickener and the support building. |
| With this practice it is possible to add pectolytic enzymes to increase decantation effectiveness and to remove some pectics. |
| During the decantation, we can see the accretion of some alluvium layers at the bottom of the can. |
