41. To prevent fish deaths, nitrification via aeration prior to discharge is often desirable. 42. This combined with an artificial aeration system allows for a generally good water quality. 43. Pivotal for the sedimentation is the deceleration, aeration and spraying of the water. 44. During aeration , water is pumped into a non-pressurized tank and agitated. 45. There are a number of styles of wine aerators and approaches to accomplish aeration . 46. Many types of aeration equipment have been used to reduce or eliminate thermal stratification. 47. They continually spray the beverage in what I suppose is a means of aeration . 48. Typical NF water purification post-treatment stages include aeration and disinfection & stabilisation. 49. Some residential systems require forced aeration units which will increase maintenance and operational costs. 50. Aeration of an ebb and flood system is an important aspect of its operation.
