MBBR Biofiltration Powers Desert RAS: 82,600 RMB Cov Nyiaj Tau Los Thiab 60% Dej Txuag Loj hlob Trout Thiab Sturgeon hauv Gobi

Lub Nroog Minqin, Gansu Xeev tau txais tsuas yog 110 hli los nag hauv ib xyoos - tseem nyob hauv lub tsev cog khoom nyob rau ntawd, zaj sawv trout thiab sturgeon loj hlob mus rau lub lag luam hnyav hauv rau lub hlis thiab xa rov qab 82,600 RMB ntawm cov txiaj ntsig los ntawm ob lub 126 m³ tso tsheb hlau luam. Cov thev naus laus zis uas ua rau nws ua tau yog tib yam MBBR biofiltration siv los kho cov dej khib nyiab hauv nroog thiab kev lag luam.

Recirculating aquaculture systems (RAS) hold fish at high density in a closed loop of continuously treated water. Lub plawv ntawm ib qho RAS yog nws cov biofilter, uas hloov cov tshuaj lom ammonia tawm los ntawm cov ntses mus rau qhov tsis muaj nitrate. Cov ntaub ntawv kawm no los ntawm Hongqigu Modern Smart Agriculture Demonstration Park qhia tias MBBR lub zog tseem ceeb - siab -efficiency nitrification, poob siab-load resistance, thiab ruaj khov biofilm tu - yog qhov tseem ceeb hauv aquaculture raws li lawv nyob rau hauv kev kho dej khib nyiab, thiab hais tias ib tug pov thawj municipal technology hloov mus rau ib daim ntawv thov siab {6}.

Vim li cas MBBR hauv Aquaculture?

Hauv RAS, biofilter yog qhov tseem ceeb tshaj plaws - nws tsev cov kab mob nitrifying uas hloov cov tshuaj lom ammonia rau nitrate. Yog tias biofilter ua tsis tiav, ammonia spikes thiab ntses tuag hauv teev. MBBR thev naus laus zis tshwj xeeb tsim nyog rau lub luag haujlwm no vim muaj tsib yam ntxwv:

• High volumetric nitrification tus nqi.The protected biofilm on MBBR carriers supports dense nitrifying bacteria populations, so a small reactor treats a large fish load.
• Tus kheej - tswj hwm biofilm thickness.Turbulent carrier motion lawm shear over biofilm, tiv thaiv cov clogging uas plagues ruaj - txaj systems.
• Resilience rau kub hloov pauv.Cov qauv biofilm tiv thaiv cov kab mob los ntawm qhov kub thiab txias tshwm sim hauv cov tsev cog khoom ib puag ncig.
• Tsis tas yuav rov qab ntxuav.Tsis zoo li cov xuab zeb lim los yog ruaj khov - txaj biofilters, MBBR systems yuav tsum tsis muaj kev rov qab mus sij hawm ntev - qhov txiav txim kom zoo dua ntawm cov chaw nyob deb.
• Compact hneev taw.High tshwj xeeb cheeb tsam cov neeg nqa khoom xa cov kev kho mob siab tshaj plaws hauv qhov chaw tsawg, txiav cov tsev cog khoom thiab cov khoom siv.

Desert RAS System

Lub kaw lus tau tsim los ntawm Hongqigu Modern Smart Agriculture Demonstration Park hauv Minqin County, nrog rau MBBR biofilter ntawm nws qhov tseem ceeb. Txhua qhov kev txiav txim siab tsim tau ua los tiv thaiv qhov hnyav Gobi huab cua thiab qhov tsis txaus ntawm kev txhawb nqa:

• Tsev cog khoom:steel-thav duab nrog ob npaug- txheej yas zaj duab xis rau rwb thaiv tsev thiab qhov cua, buffering qhov kub thiab txias swings ntawm suab puam.
• Tank:galvanized steel ncej nrog waterproof canvas, 10 m txoj kab uas hla × 1.6 m qhov tob, kwv yees li126m3 ib, nrog lub conical hauv qab thiab ob lub qhov dej kom tiav cov khib nyiab tshem tawm.
• Recirculation voj voog:tank qhov hluav taws xob → sump → microscreen lim → MBBR biofilter → UV tshuaj tua kab mob → oxygenation → rov qab mus rau lub tank.
• Aeration:nano-diffuser discs muab los ntawm Roots blower, nrog lub hom phiaj yaj oxygen (DO) saum toj no6 mg/l.
• Kev sib pauv dej:Txhua hnub pleev dej ntawm kwv yees li 10% ntawm tag nrho cov ntim, npog evaporation thiab tshem tawm qhov poob.

Cov txiaj ntsig ntau lawm tom qab rau lub hlis

Tom qab kwv yees li rau lub hlis ntawm kab lis kev cai, ob hom tau mus txog qhov hnyav ntawm kev lag luam nrog cov nyiaj tau los ntawm 82,600 RMB los ntawm tag nrho cov dej ntim ntawm tsuas yog 252 m³. Table 1 piav qhia txog kev tsim khoom thiab kev txheeb xyuas nyiaj txiag.

Table 1: Zaj sawv trout thiab sturgeon ntau lawm thiab kev txheeb xyuas nyiaj txiag. Cov nqi tsim khoom yog 22-24 RMB / kg, yielding cov nyiaj tau los ntawm kwv yees li 55%.

Txoj kev loj hlob curves qhia ntxiv qhov kub thiab txias ua haujlwm. Thaum lub Tsib Hlis-Lub Rau Hli, ob hom loj hlob zoo ib yam. Nyob rau hauv Lub Xya hli ntuj-Lub yim hli ntuj, sturgeon outperformed trout ntawm kub dua. Raws li qhov kub thiab txias poob rau lub Cuaj Hlis-Kaum Ib Hlis, trout tau zoo heev. Tshaj tag nrho lub voj voog, sturgeon tau ua tiav me ntsis siab dua tag nrho (632 g vs . 504 g ib tus ntses), thiab ob hom - sib tov tso cai rau kev ua liaj ua teb los siv tag nrho cov caij nyoog kub ntawm lub tsev cog khoom.

Water Quality Management: MBBR Advantage

Cov hom phiaj dej zoo tau nruj: DO saum toj no6 mg/l, NH3-N hauv qab no0.5 mg / L, NO2-N hauv qab no0.1 mg / L, thiab pH ntawm 6.5 txog 8.0. Tuav ammonia thiab nitrite hauv qab no cov theem pib hauv qhov siab - ceev RAS yog txoj haujlwm 24-teev, thiab MBBR biofilter yog linchpin uas ua rau nws ua tiav nrog cov neeg ua haujlwm tsawg kawg nkaus:

• Ceev ceev ammonia oxidation.Cov neeg nqa khoom siab hauv cheeb tsam tau txhawb nqa AOB / NOB biofilm ntom ntom uas oxidized ammonia sai npaum li cov ntses tsim nws, ua kom NH3-N thiab NO2-N zoo nyob rau hauv kev nyab xeeb txwv txawm tias thaum noj zaub mov ncov.
• Kev ua haujlwm ruaj khov nyob rau hauv qhov sib txawv loading.EPS matrix ntawm biofilm tiv thaiv kab mob los ntawm kev pub noj - lub voj voog kev poob siab, yog li cov ammonia spikes los ntawm cov khoom noj ntxiv tsis tau nthuav tawm hauv lub cev.
• Kev saib xyuas tsawg.Tsis tas yuav tsum tau rov qab ntxuav dua - qhov txiaj ntsig tseem ceeb rau thaj chaw deb suab puam uas muaj kev txhawb nqa thiab kev hloov pauv tsis txaus.

Economic thiab Environmental Benefits

Kev lag luam yog yuam. Qhov system xa82,600 RMB ntawm cov nyiaj tau loslos ntawm ob lub tso tsheb hlau luam nrog cov dej ntim sib xyaw ntawm 252 m³, ntawm tus nqi tsim khoom ntawm 22-24 RMB / kg thiab aprofit margin ntawm kwv yees li 55%. Qhov tseem ceeb sib npaug yog qhov kev ua tau zoo ib puag ncig, uas yog qhov ua rau cov suab puam aquaculture defensible:

• Kev txuag dej ntau dua 60%piv nrog ib txwm pas dej aquaculture - txiav txim siab nyob rau hauv ib cheeb tsam uas tsuas yog 110 hli ntawm cov dej nag txhua xyoo.
• Nyob ze - xoom tso tawm.Cov khib nyiab khib nyiab tau sau thiab tshem tawm, thaum cov dej txuas ntxiv kho thiab rov siv dua hauv lub voj kaw.
• Txo evaporative poob.Lub tsev cog khoom txiav evaporation piv nrog cov pas dej qhib, ntxiv kev txuag dej tsawg.

Qhov tseem ceeb Takeaways rau MBBR hauv Aquaculture

• MBBR biofiltration enables suab puam aquaculture.Lub biofilter yog dab tsi ua rau kaw -loop ua liaj ua teb ntses siv tau qhov twg dej tsis txaus thiab lub caij ntuj sov heev.
• Tib MBBR thev naus laus zis hloov pauv ncaj qha rau RAS.Cov txheej txheem lom neeg ntawm ammonia oxidation yog zoo tib yam rau kev kho dej khib nyiab, yog li cov pov thawj hauv nroog thiab cov qauv tsim siv nrog kev hloov pauv tsawg.
• Cov chaw nyob deb tau txais txiaj ntsig los ntawm qhov qis - kev tsim kho.Qhov tsis muaj - thim rov qab, tus kheej - tswj hwm qhov xwm txheej ntawm MBBR yog qhov tseem ceeb uas muaj kev txhawb nqa kev txwv.
• RAS kev ua lag luam loj hlob sai heev.Raws li aquaculture txav sab hauv tsev rau biosecurity thiab kev nyab xeeb kev nyab xeeb, kev thov rau biofiltration loj hlob nrog nws - ib qho tseem ceeb ntawm kev lag luam nyob ib sab rau MBBR cov neeg muag khoom.

Xaus

Cov ntaub ntawv kawm Gobi Desert no qhia tau tias MBBR-raws li RAS tuaj yeem ua tiav cov ntses muaj txiaj ntsig zoo hauv ib qho chaw nyuaj tshaj plaws hauv ntiaj teb. Ib qho 82,600 RMB cov nyiaj tau los ntawm ib zaug rau - lub hli voj voog, ua ke nrog ntau dua 60% kev txuag dej thiab ze rau - xoom tso tawm, ua rau muaj teeb meem nyuaj rau cov thev naus laus zis. Rau MBBR cov neeg muab khoom, kev cog qoob loo sawv cev rau qhov kev nthuav dav dav dav - cov kev xav tau ntawm kev lim dej lom neeg yog qhov zoo ib yam li cov hauv kev kho dej khib nyiab, thiab kev ua lag luam tau txav mus rau sab hauv tsev sai.

Tsab ntawv xov xwm no yog ua raws li daim ntawv "Tsev Neeg Tseem Ceeb ntawm Tsev Kho Mob-Based Land Circular Tank Recirculating Aquaculture for Rainbow Trout and Sturgeon in Arid Desert Regions" (Yang Shujun li al., 2026). Daim duab qhia txog kev loj hlob yog muaj nyob rau hauv thawj daim ntawv tshaj tawm.