Iqhaza lezinkomba ezimbalwa ezijwayelekile zomzimba nezamakhemikhali emfundweni yasemanzini

Iqhaza lezinkomba ezimbalwa ezijwayelekile zomzimba nezamakhemikhali emfundweni yasemanzini

Njengoba isisho sisho, ukufuya izinhlanzi kuqala kuphakamisa amanzi, okukhombisa ukubaluleka kwemvelo yamanzi emfuyweni yasemanzini.Enqubweni yokuzalanisa, ikhwalithi yamanzi e-aquaculture yahlulelwa ikakhulukazi ngokuthola izinkomba eziningana ezifana nenani le-pH, i-ammonia nitrogen, i-nitrite nitrogen, i-sulfide kanye nomoya-mpilo oncibilikisiwe.Ngakho-ke, kubaluleke kakhulu ukuqonda indima yezinkomba eziningana zomzimba namakhemikhali emanzini .

1.pH

I-acidity kanye ne-alkalinity iyinkomba ephelele ebonisa izinga lamanzi, futhi iyisici esibalulekile esithinta ngokuqondile impilo yezinhlanzi.Ukuzijwayeza kufakazele ukuthi i-pH yendawo efanelekile yamanzi ekukhuleni kwezinhlanzi iphakathi kuka-7 no-8.5.Ukuphakama noma okuphansi kakhulu kuzothinta ukukhula kwezinhlanzi futhi kubangele nokufa kwezinhlanzi.Izinhlanzi emanzini ane-alkaline ane-pH ephakeme kune-9.0 zizohlushwa i-alkalosis, futhi kuzobangela ukuthi izinhlanzi zikhiphe amafinyila amaningi, okuzophazamisa ukuphefumula.I-pH ephakeme kuno-10.5 izobangela ngokuqondile ukufa kwezinhlanzi.Emanzini ane-asidi ane-pH engaphansi kuka-5.0, amandla ezinhlanzi okuthwala umoya-mpilo wezinhlanzi ayancishiswa, okubangela i-hypoxia, i-dyspnea, ukunciphisa ukudla, ukunciphisa ukugayeka kokudla, nokukhula kancane.Amanzi ane-Acidic aholela enanini elikhulu lezifo zezinhlanzi ezibangelwa i-protozoa, njenge-sporozoites kanye ne-ciliates.

2.Di-oxygen encibilikisiwe

Ukugcwala komoyampilo okuncibilikisiwe kuyinkomba eyinhloko yekhwalithi yamanzi e-aquaculture, futhi umoya-mpilo oncibilikisiwe emanzini we-aquaculture kufanele ugcinwe ku-5-8 mg/L.I-oksijeni encibilikisiwe eyanele ingabangela amakhanda antantayo, futhi ezimweni ezimbi kakhulu, izothinta ukukhula kwezinhlanzi futhi ibangele ukufa kwama-pan-ponds.Ukuhlushwa kwe-oksijeni encibilikile emzimbeni wamanzi kuthinta ngokuqondile okuqukethwe kwezinto ezinobuthi emzimbeni wamanzi.Ukugcina umoya-mpilo owanele oncibilikisiwe emzimbeni wamanzi kunganciphisa okuqukethwe kwezinto ezinobuthi njenge-nitrite nitrogen ne-sulfide.I-oxygen eyanele encibilikisiwe emanzini ingathuthukisa ukungatheleleki kwezinto ezizalayo futhi ithuthukise ukubekezelelana kwazo ezindaweni ezimbi.

1.I-nitrogen ye-nitrogen

Okuqukethwe kwe-nitrite nitrogen emanzini kudlula u-0.1mg/L, okuzolimaza izinhlanzi ngokuqondile.Ukusabela kwe-nitrification okuvinjiwe kwamanzi kuyimbangela eqondile yokukhiqizwa kwe-nitrite nitrogen.Ukusabela kwe-nitrification kwamagciwane afaka i-nitrifying amanzi kuthinteka izinga lokushisa, i-pH kanye nomoya-mpilo oncibilikisiwe emanzini.Ngakho-ke, okuqukethwe kwe-nitrite nitrogen emanzini kuhlobene eduze nezinga lokushisa lamanzi, i-pH kanye nomoya-mpilo oncibilikisiwe.

2. I-sulfide

Ubuthi be-sulfide bubhekisela ikakhulukazi ebuthi be-hydrogen sulfide.IHydrogen sulfide iyisithako esinobuthi obukhulu, ukugxila okuncane kuthinta ukukhula kwezinto zasemanzini, futhi ukugxila okuphezulu kuzoholela ngokuqondile ebuthini nasekufeni kwezinto zasemanzini.Ukulimala kwe-hydrogen sulfide kufana nokwe-nitrite, ikakhulukazi okuthinta umsebenzi wokuthwala umoya-mpilo wegazi lezinhlanzi, okuholela ku-hypoxia yezinhlanzi.Ukugcwala kwe-hydrogen sulfide emanzini e-aquaculture kufanele kulawulwe ngaphansi kuka-0.1mg/L.

Ngakho-ke, ukubamba ngokunembile lezi zinto zokuhlola, ukwenza ukuhlolwa okuvamile, nokuthatha izinyathelo ezihambisanayo ngesikhathi kungathuthukisa kakhulu izinga lokusinda kwezinhlanzi nezimfanzi futhi kunciphise izindleko zokuzalanisa.

T-AM Aquaculture Portable Colorimeter