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2. Diatomaceous earth filtration - Wikipedia

   en.wikipedia.org/wiki/Diatomaceous_earth_filtration

   Considering the nature of certain bacteria, viruses, and parasites filtration is a key component in ensuring the well-being of those that utilize swimming pools. If a diatomaceous earth filter is employed and properly designed, the application can prove to be extremely efficient in the removal and minimization of almost 100% of parasites.

3. Diatomaceous earth - Wikipedia

   en.wikipedia.org/wiki/Diatomaceous_earth

   Diatomite rock sample from Sisquoc Formation Scanning electron micrograph of diatomaceous earth. Diatomaceous earth (/ ˌ d aɪ. ə t ə ˈ m eɪ ʃ ə s / DY-ə-tə-MAY-shəs), also known as diatomite (/ d aɪ ˈ æ t ə m aɪ t / dy-AT-ə-myte), celite, or kieselguhr, is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder.

4. Dirofilaria immitis - Wikipedia

   en.wikipedia.org/wiki/Dirofilaria_immitis

   The repellent, such as Vectra 3-D, keeps mosquitoes from feeding on the dog and transmitting the L 3 stage worms. If a dog is bitten, the heartworm preventive takes over when administered. If a mosquito feeds on a heartworm positive dog on a repellent, they do not live long enough for the microfilaria they ingested to molt into the infective L ...

5. Rotary vacuum-drum filter - Wikipedia

   en.wikipedia.org/wiki/Rotary_vacuum-drum_filter

   It is common to pre-coated with a filter aid, typically of diatomaceous earth (DE) or Perlite. In some implementations, the knife also cuts off a small portion of the filter media to reveal a fresh media surface that will enter the liquid as the drum rotates. Such systems advance the knife automatically as the surface is removed.

6. Diatom - Wikipedia

   en.wikipedia.org/wiki/Diatom

   Diatomaceous earth (diatomite) is a collection of diatom shells found in the Earth's crust. They are soft, silica-containing sedimentary rocks which are easily crumbled into a fine powder and typically have a particle size of 10 to 200 μm.

7. Mites of livestock - Wikipedia

   en.wikipedia.org/wiki/Mites_of_livestock

   The fungi infest the surface of the cuticle and penetrate into it, smothering the mites. Self-dusting by birds is a natural defense against mites (and lice) and can be aided by poultry farmers providing diatomaceous earth (also known as kaolin). [49] The harsh dust of the diatomaceous earth abrades the cuticle of the mites, dehydrating them ...