Feem ntau, cov khoom cua dag yuav tsis raug cuam tshuam los ntawm khov vim cov dej khov yuav tau yaj thiab yuav tsum tau yaj. Txawm li cas los xij, yuav tsum ua kom muaj chaw ua si thaum tsim nyog, nws yuav tsum tshem tawm cov khov nab kuab los ntawm cov khoom cua ua si. Qhov tshem tawm ntawm dej khov yog qhov nyuaj heev. Peb yuav tsum ua li cas nrog rau qhov teeb meem no?
Yog li, thiaj li yuav tshem tau cov cua tsis muaj khov, tsis muaj kev ywj pheej, qhov ntau tshaj txoj hauv tam sim no yog tuav cov dej khov rau ntawm cov khoom siv ua si nrog cov menyuam hnyav. Tom qab cov dej khov nab muaj crushed, lawv tuaj yeem muab ntxuav ncaj qha los ntawm lub tsev kawm ntawv. Feem ntau yog thaum nws tawm ntawm lub hnub, thiab thaum cov dej khov los yog te tsis yog tuab heev, nws yuav qhuav sai sai thiab nws yuav muaj tsawg.
Txawm li cas los xij, yog hais tias khov txheej yog tuab, tsis muaj lwm txoj hau kev ntev. Tsuas siv tshuaj los pab nws yaj. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias tsis muaj teeb meem dab tsi siv rau ntawm cov khoom lag luam uas siv rau ntawm cov khoom lag luam, ib co residue yuav tau sab laug thiab lub tsev kawm ntawv yuav tsum tau muab ntxuav thaum huab cua pom.
Yog hais tias lub txheej dej khov rau ntawm cov khoom siv dag tau yog ib qho tuab, nws tuaj yeem siv los pab khov thiab thaw los ntawm kis urea. Hais txog 3,000 square feet ntawm urea yuav tsum tau pw tawm rau 100 Ibsau ntawm Huv (rau siv xwb, nws muaj peev xwm raug kho nyob rau hauv ntau zaus thiab nyob rau hauv ntau qhov chaw). Tom qab lub urea raug sown, cov dej khov rau ntawm daim teb yuav tsum yog ib nrab-tag ua ntej nws tuaj yeem qhuav. Cov dej khov nab kuab yuav tsum tau ntxuav nrog lub tshuab ntxhua khaub ncaws, roj hmab nqus, ntxhiab lossis lwm yam khoom siv. Urea tsis ua si ntawm -12 ° C thiab tsis yaj dej khov ntawm -17 ° C txhua. Ib qho me me ntawm urea residue yuav nyob twj ywm ntawm qhov chaw thiab yuav raug muab ntxuav thaum huab cua pom zoo.
Thaum kis urea ntawm cov khoom ua si dag, ceev faj tsis txhob cia urea nkag mus rau hauv koj ob lub qhov muag vim hais tias nws yuav ua rau qhov muag me puas tsuaj. Yog tias koj nkag mus rau tus neeg ncaws pob lub qhov muag, yaug nrog dej kom ntau.
Nyob rau hauv txoj kev ntawm kis, sim tsis txhob siv tshuaj uas yuav ua mob los yog ua kom tsis zoo rau cov phom tuaj dag. Tsis txhob siv cov ntsev, ntxhia ntsev, cov tshuaj qej chlorides, lwm yam tshuaj tua kab, thiab tshuaj lom. Khoom hnyav yuav tsum tsis txhob nres rau ntawm qhov chaw ntev ntev. Qhov no tuaj yeem ua rau lub pob zeb ua kom tsis muaj zog.
