Diatomaceous Earth ndi mtundu wa miyala ya siliceous yomwe imagawidwa m'mayiko monga China, United States, Japan, Denmark, France, Romania, ndi zina zotero. Ndi thanthwe la biogenic siliceous sedimentary lopangidwa makamaka ndi mabwinja a diatoms akale.Mankhwala ake makamaka SiO2, omwe amatha kuimiridwa ndi SiO2 · nH2O, ndipo kapangidwe kake ka mchere ndi opal ndi mitundu yake.Zosungirako za dziko lapansi la diatomaceous ku China ndi matani 320 miliyoni, omwe akuyembekezeka kusunga matani opitilira 2 biliyoni, makamaka ku East China ndi Kumpoto chakum'mawa kwa China.Pakati pawo, Jilin (54.8%, ndi Linjiang City m'chigawo cha Jilin ndiye nkhokwe yoyamba yotsimikiziridwa ku Asia), Zhejiang, Yunnan, Shandong, Sichuan, ndi zigawo zina zimagawidwa kwambiri, koma nthaka yapamwamba imangokhazikika mu Changbai Mountain dera la Jilin, ndi ma depositi ena amchere ambiri ndi nthaka ya grade 3-4.Chifukwa cha zonyansa zambiri, Sizingasinthidwe mwachindunji ndikugwiritsidwa ntchito.Chigawo chachikulu cha dziko la diatomaceous monga chonyamulira ndi SiO2.Mwachitsanzo, chigawo chogwira ntchito cha mafakitale vanadium chothandizira ndi V2O5, cothandizira ndi alkali zitsulo sulfate, ndipo chonyamulira ndi woyengedwa diatomaceous lapansi.Kuyesera kwawonetsa kuti SiO2 ili ndi mphamvu yokhazikika pazigawo zogwira ntchito ndikuwonjezeka ndi kuwonjezeka kwa K2O kapena Na2O.Ntchito ya chothandizira imakhudzananso ndi kubalalitsidwa ndi kapangidwe ka pore kwa chonyamulira.Pambuyo pa chithandizo cha asidi cha dziko lapansi la diatomaceous, zomwe zili mu zonyansa za oxide zimachepa, zomwe zili mu SiO2 zimawonjezeka, ndipo malo enieni ndi pore voliyumu amawonjezeka.Chifukwa chake, chonyamulira cha dziko loyengedwa la diatomaceous ndichabwino kuposa chachilengedwe cha diatomaceous lapansi.

Dziko la Diatomaceous nthawi zambiri limapangidwa kuchokera ku zotsalira za silicate pambuyo pa imfa ya algae yokhala ndi selo imodzi, yomwe imadziwika kuti diatoms, ndipo tanthauzo lake ndi amorphous amorphous SiO2.Ma Diatom amatha kukhala m'madzi amchere ndi amchere, okhala ndi mitundu yambiri.Amatha kugawidwa kukhala ma diatomu a "central order" ndi ma diatom a "nthenga", ndipo dongosolo lililonse limakhala ndi "genera" zambiri zomwe ndizovuta kwambiri.

Chigawo chachikulu cha chilengedwe cha diatomaceous lapansi ndi SiO2, chokhala ndi mtundu wapamwamba kwambiri wokhala ndi mtundu woyera komanso zomwe zili ndi SiO2 nthawi zambiri zimadutsa 70%.Ma diatomu amodzi ndi opanda mtundu komanso owoneka bwino, ndipo mtundu wa dziko la diatomaceous umadalira mchere wadongo ndi zinthu zamoyo.Mapangidwe a nthaka ya diatomaceous kuchokera ku magwero osiyanasiyana amchere amasiyanasiyana.

Diatomaceous Earth, yomwe imadziwikanso kuti diatom, ndi gawo losungika la diatom lomwe limapangidwa pambuyo pa kufa kwa chomera chimodzi chokhala ndi cell komanso nthawi yoyika pafupifupi zaka 10000 mpaka 20000.Ma Diatoms anali amodzi mwa zamoyo zoyamba kuonekera pa Dziko Lapansi, zimakhala m'madzi a m'nyanja kapena m'madzi a m'nyanja.

Mtundu uwu wa dziko lapansi diatomaceous amapangidwa ndi mafunsidwe a mabwinja a single celled m'madzi zomera diatoms.Ntchito yapadera ya diatom iyi ndikuti imatha kuyamwa silicon yaulere m'madzi kuti ipange mafupa ake.Moyo wake ukatha, imayika ndi kupanga madipoziti a dziko lapansi a diatomaceous pansi pamikhalidwe ina.Lili ndi zinthu zina zapadera, monga porosity, kutsika kwapansi, malo akuluakulu enieni, kusagwirizana kwachibale, ndi kukhazikika kwa mankhwala.Pambuyo kusintha tinthu kukula kugawa ndi pamwamba zimatha nthaka choyambirira kudzera procNjira zowerengera monga kuphwanya, kusanja, kuwerengera, kugawa kwa mpweya, ndi kuchotsa zonyansa, zitha kukhala zoyenera pazofunikira zosiyanasiyana zamafakitale monga zokutira ndi zowonjezera zopaka utoto.