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Filter The Conditions
Sep 01, 2017

Principle of filtration: Under the action of pressure difference, the liquid (or gas) in the suspension is trapped through the osmotic medium (the filter medium) and the solid particles as the medium, thus separating the liquid and the solid.

Filtration is a process in which solid particles suspended in a liquid or gas are separated.

1) to achieve the filter with the two conditions:

① have the necessary equipment to achieve the separation process;

② filter on both sides to maintain a certain pressure difference (driving force).

2) commonly used filtration method can be divided into gravity filter, vacuum filtration, Filter pressure filtration and centrifugal filtration several.

Now we use the filter is mainly the following, Filter depending on your use effect, you think what kind of filtering effect is more powerful and reason:

1, bottom filter

Bottom filter principle: the bottom of the filter is placed in the bottom of the aquarium, which consists of a number of screen plate combination, in the screen can be connected to the water pump inlet pipe, when the pump work, the water flow through the bottom of the stencil Into the filter tank, the filtered water and then back to the aquarium. When the pump is working, the bottom of the filter and the bottom of the aquarium in the gap, will produce siphon effect, the formation of a powerful flow of water, Filter the screen will be sucked into the filter tank dirt.

2, on the filter

On the filter principle: the upper part of the cycle filter is placed on top of the aquarium, the entire filter tank exposed outside the aquarium, through the submersible pump out of the water into the filter tank, Filter and then by the bottom of the filter tank outlet pipe back to the aquarium, Filter tank can be placed within the filter cotton, activated carbon, fossils and so on.

3, side filter

Side filter principle: the side of the glass with a part of the filter to do, the internal into a few small grid for the placement of filter (or filter equipment) and the circulating pump, Filter while the overflow port, when the water pump from the filter part of the pumping Fish tank, the overflow of water tank through the overflow into the filter part of the first grid, under the guidance of the partition "from top to bottom" or "from bottom to top" through a variety of filters, water from the last grid Through the pump again into the fish tank, so the cycle.

4, back filter

Back filter principle: Back filter is in the back of the fish tank with a part of the glass to do the filter, the inside into a few small grid for the placement of filter and circulating pump, while the overflow port, when the water pump from the filter part of the pumping Fish tank, Filter the overflow of water tank through the overflow into the filter part of the first grid, under the guidance of the partition through the various filter, the water from the last grid through the pump again into the tank to form a cycle.

5, trickle filter

Dropping filter principle: trickle filter is an integrated filter, it will be physical filter and biological filter together in a filter tank, in this filter tank is divided into several layers, (the specific number of layers can be increased or decreased according to need) filter tank The upper layer for the physical filter room, mainly placed with filter cotton, chemical and biological cotton, the following layers were placed biochemical ball, rattan cotton, glass ring, quartz ball, bacteria house and other filter. When the water flow will increase the contact with the air surface to increase the oxygen content, Filter for the aerobic bacteria to provide the best living environment.