Los ntawm cov kws tshaj lij, cov quav hniav yog ib pawg ntawm cov mos mos thiab tsis muaj zog tiv thaiv cov kab mob sib txuas lossis ua kom zoo rau cov nplaim ntawm cov hniav, nruab nrab ntawm cov hniav lossis lub nplaim rov qab, uas tsis tuaj yeem ntxuav los ntawm dej los yog ntxuav. tawm. Ib hom tshuaj tua kab mob biofilm.
Thaum tus nqi ntawm cov quav hniav yog qhov me me, nws yog qhov nyuaj rau kev soj ntsuam nrog lub qhov muag tsis pom, thiab nws feem ntau tau ua rau pom zoo nrog cov quav hniav.