Cov kev hloov pauv hauv Pas Dej Hauv qab Cov Txheej Txheem Thoob Ntiaj Teb Aquaculture Stages

Cov kev hloov pauv hauv Pas Dej Hauv qab Cov Txheej Txheem Thoob Ntiaj Teb Aquaculture Stages

Nws yog qhov paub zoo tias kev tswj xyuas dej zoo yog qhov tseem ceeb hauv aquaculture, thiab dej zoo muaj feem cuam tshuam nrog cov xwm txheej ntawm lub pas dej hauv qab. Cov pas dej zoo hauv qab zoo pab txhawb kev loj hlob ntawm aquaculture. Kab lus no yuav tsom mus rau cov kev hloov pauv hauv pas dej hauv qab ntawm ntau theem ntawm cov txheej txheem aquaculture thiab cov kev ntsuas sib xws.

Thaum lub sij hawm aquaculture txheej txheem, lub pas dej hauv qab feem ntau dhau plaub qhov kev hloov pauv: organicization, txo qis, toxicification, thiab acidification.

Thaum Ntxov Theem Ntawm Aquaculture - Organicization

Nyob rau hauv cov theem thaum ntxov ntawm aquaculture, raws li kev pub mis nce, cov khoom ntawm cov khib nyiab, cov khoom seem seem, thiab cov quav tso rau hauv lub pas dej hauv qab ua rau muaj cov organic teeb meem maj mam, txheej txheem hu ua organicization. Nyob rau theem no, cov qib oxygen kuj tseem txaus. Lub hom phiaj tseem ceeb yog kom decompose cov sludge thiab quav rau hauv lub pas dej hauv qab, hloov lawv mus rau hauv cov ntsev inorganic thiab cov as-ham los txhawb kev loj hlob ntawm algae thiab nce cov pa oxygen hauv dej. Cov kab mob microbial tuaj yeem siv los pab tshem tawm cov sludge thiab quav.

Nruab nrab theem ntawm Aquaculture - txo qis

Raws li aquaculture zuj zus, tshwj xeeb tshaj yog thaum lub sij hawm noj cov tsiaj hauv dej siab tshaj plaws, cov khoom noj tseem nce ntxiv, ua rau maj mam sib sau ntawm cov organic teeb meem hauv lub pas dej uas ntau tshaj cov dej hauv lub cev nws tus kheej. Ib tug loj npaum li cas ntawm cov organic pov tseg undergoes anaerobic decomposition nyob rau hauv qab, ua rau dub thiab qias neeg dej, thiab nkag mus rau lub txo theem uas cov dej maj mam ua oxygen-depleted. Piv txwv li, sulfate hloov mus rau hauv hydrogen sulfide, thiab ammonia nitrogen hloov mus rau nitrite. Qhov tshwm sim ntawm kev txo qis yog qhov tseem ceeb oxygen depletion ntawm lub pas dej hauv qab, ua rau lub pas dej hypoxia. Nyob rau theem no, nws raug nquahu kom siv cov tshuaj oxidizing rau hauv qab hloov kho, xws li potassium monopersulfate compound thiab sodium percarbonate. Cov tshuaj oxidizing no tuaj yeem oxidize lub pas dej hauv qab sludge, txo cov pa oxygen, thiab txhim kho oxidation peev xwm tshem tawm cov teeb meem dub thiab tsw.

Lub sijhawm nruab nrab ntawm Aquaculture-Toxicification

Nyob rau hauv nruab nrab theem, lub pas dej ua rau ib qho tseem ceeb ntawm cov tshuaj lom, xws li hydrogen sulfide, ammonia nitrogen, nitrite, thiab methane. Tshwj xeeb tshaj yog hydrogen sulfide thiab nitrite tuaj yeem ua rau mob ua pa nyuaj lossis ua pa nyuaj hauv cov ntses, cw, thiab crabs. Yog li ntawd, thaum nitrite thiab ammonia nitrogen nce siab, nws raug nquahu kom siv cov tshuaj detoxifying kom tsis txhob muaj cov tshuaj lom no.

Qib kawg ntawm Aquaculture-Acidification

Los ntawm theem kawg ntawm aquaculture, lub pas dej hauv qab ua kua qaub vim yog anaerobic fermentation ntawm ntau cov organic teeb meem, ua rau txo qis pH thiab nce toxicity ntawm hydrogen sulfide. Nyob rau theem no, txiv qaub tuaj yeem siv rau thaj chaw uas muaj cov sludge ntau tshaj plaws kom tsis txhob muaj cov kua qaub ntawm lub pas dej hauv qab, nce pH, thiab txo cov tshuaj lom ntawm hydrogen sulfide.