Good day, friends. With you, as always, Andrei Selitsky, the owner of Aquablog. I am glad to welcome you again on the pages of this Internet resource and I have prepared another article for you.
Today, the topic of our article will be the types of water filtration, since the question is very popular on the forums. In this article I will not climb hard in the wilds, but I will try to teach you the main thing.
The article will not be big, as this material will be an easy excursion. A little later, I will write a more detailed post.
And so, drove.
1. Adsorption – this type of filtration is based on the properties of certain substances to adsorb organics and various oxidizing agents.
If it is somewhat simpler, it can be said as follows: thanks to the great variety of interatomic forces, organics and oxidants can attract atoms and molecules of other substances to themselves. So that you have an idea how this happens, I will give you a few examples:
– Adsorption using zeolite. This substance neutralizes ammonia and ammonium in the aquarium. Particularly invaluable is the zeolite property in a newly launched aquarium and also after the treatment time;
– Adsorption using activated carbon. The coal removes metals from the aquarium water.
If you use activated carbon, then you will be able to achieve the purest water, but there is one negative consequence: the water will become poor in nutrients for plants. You can read about mineral nutrition for plants here and here.
2. Mechanical filtration. When mechanical filtration from water using fine-porous materials are removed all sorts of suspensions.
In the role of the filter material suitable foam sponge installed in the filter. Besides, washcloths from fishing line and synthetic winterizer (perlon cotton) are also widely used. In no case do not use foam rubber from the sofa and cotton wool from the pharmacy.
In general, when mechanical filtration filter materials are divided into fine and coarse.
3. Biological treatment. The basis of this method is the creation of the necessary conditions for colonies of various bacteria, which in the course of their life activity will process one compound into another.
Harmful ammonium will be broken down into not so harmful nitrite, and nitrite in turn into nitrate. To increase the area of settlement of the filtering material, highly porous materials are used. You can also convert nitrates to nitrogen, which is harmless, but you will need to buy a biodenitrator, which is connected to the outlet of the filter.
If interested, read the article about the nitrate cycle in the aquarium.
To ensure cleanliness in the aquarium and to prevent an increase in the concentration of various suspensions and harmful substances, it is recommended to use not one type of filtration, but several. Thanks to such events you will create optimal conditions for the existence of the aquarium living creatures.
In addition to filtering water, aquarists very often artificially change the parameters of aquarium water, that is, they add peat, which will acidify the water; lower carbonate hardness by resins.