Читать книгу Clinical Guide to Fish Medicine - Группа авторов - Страница 113

In most systems, it is good to have skimming to remove oils and other floating debris that produce a film on the surface. This is important since, in addition to being organic waste, these materials inhibit gas exchange and light penetration at the water's surface. Skimming is usually the first step in filtration. As the water exits the tank, skimmers at the surface divert the materials at the surface to a waste stream. Surface skimming flow rate is dependent on the surface‐to‐volume ratio of the tank but should be ~50–100% of the total system flow rate.