Kev piav qhia txog khoom
Cov pob kab mob nano tuaj yeem lwj thiab nqus tau ammonia, nitrous nitrogen, hydrogen sulfide thiab cov hlau hnyav, thiab muaj cov yam ntxwv ntawm "multivalent cation", uas tuaj yeem txhim kho lub peev xwm los nqus cov kab mob nitrifying, ua kom cov kab mob loj hlob sai dua, ua kom zoo thiab sai sai ua rau cov lim dej ua haujlwm zoo, thiab tsim cov kab mob zoo.
Qhov zoo
Daim Ntawv Thov
Nws yog cov khoom siv lim dej nruab nrab, tsim nyog rau txhua hom ntses tank, feem ntau nyob rau hauv dej hiav txwv tshiab, thiab tuaj yeem siv rau hauv ntau yam lim dej, xws li lim sab saum toj, lim hauv qab, lub thawv ntws, thiab lwm yam.
