Kev lag luam dej hiav txwv muaj cov kev xav tau zoo rau cov dej zoo, yog li ntau yam organic teeb meem thiab cov pa phem hauv dej aquaculture yuav tsum tau kho kom raws sijhawm. Txoj kev kho mob tshaj plaws tam sim no yog los ntxuav cov dej kom zooFlocculants.
Hauv cov dej phwj uas tsim los ntawm kev lag luam aquaculture, muaj ob peb hom kev ua qias tuaj, hloov me me hauv cov ntsiab lus, thiab siv cov pa oxygen tsawg hauv cov txheej txheem biochemical. Txhawm rau ua kom tau raws li qhov yuav tsum tau ua ntawm cov qauv emission thiab txhim kho qhov chaw aquaculture. Kev siv polyaluminium chloride tuaj yeem ua tiav cov txiaj ntsig ntawm kev ua kom huv dej zoo.
Polyaluminium chlorideplays lub luag haujlwm tseem ceeb hauv aquaculture thiab muaj ntau yam haujlwm:
1. PAC tuaj yeem txhim kho dej sai sai, nce cov pa oxygen hauv dej, tiv thaiv eutrophication.
2. Muaj peev xwm tshem tawm qee cov kab mob thiab cov kab mob uas txuas rau ntawm cov khoom tshem tawm hauv dej
3. Thaum muaj ntau cov organic teeb meem hauv lub cev dej, txoj kev daws cov organic teeb meem hauv lub cev dej yog qhov tseem ceeb tshwj xeeb, thiab kev siv polyaluminium chloride kuj tseem yog ib qho kev xaiv zoo.
4. Kev kho cov dej hauv pas dej: Cov dej zoo ntawm cov kab lis kev cai hauv pas dej muaj ntau cov organic teeb meem xws li kab lis kev cai seem thiab cov quav ntses, uas ua rau txo qis hauv dej pob tshab thiab eutrophication ntawm cov dej zoo. Kev tso tawm ncaj qha yuav ua rau muaj kuab paug ib puag ncig. Qhov no yuav tsum tau ua kom cov dej hauv pas dej tau lim thiab ua kom huv, thiab tom qab ntawd tso tawm lossis rov ua dua tom qab ncav cuag cov qauv tso tawm. Kev siv cov polyaluminum chloride tuaj yeem ua kom sai sai coagulate, sib sau ua ke, thiab flocculate colloidal particles uas nyuaj rau precipitate rau hauv cov khoom loj thiab precipitate hauv dej, txo cov COD thiab BOD ntawm cov dej hauv lub cev thiab txhim kho kev ua haujlwm ntawm tus Tsov tus tw dej.
Polyaluminium chloride yog tsim rau cov dej nyoos ntawm ntau yam turbidities sib txawv kub thiab dav pH ntau yam.
Nws yuav tsum raug sau tseg tias polyaluminium chloride yuav tsum tau siv rau hauv qhov tsim nyog. Kev siv ntau dhau ua rau cov nyhuv flocculation tsis zoo thiab tuaj yeem ua rau txhaws ntawm cov ntses thiab cw, thiab nws tsis haum rau kev siv mus ntev. Nyob rau tib lub sijhawm, thaum siv nws, nws yuav tsum tau ua haujlwm nrog cov dej phwj tuaj tawm kom tso cov agglomerates ntawm polyaluminum chloride tawm ntawm lub pas dej kom ua tiav kev tshem tawm mus tas li.
Post lub sij hawm: May-08-2024