Microscreen Filter Thiab MBBR Combined System hauv Aquaculture: Synergistic Advantages Of Self-Tsev Muaj nuj nqi thiab kev kho mob lom

Nrog rau kev lag luam thoob ntiaj teb kev lag luam aquaculture mus rau kev siv zog thiab siab - ntau lawm, cov khoom pov tseg ntawm cov organic thiab cov as-ham hauv dej tau dhau los ua teeb meem. Kev nce ntxiv hauv cov khoom siv roj ntsha ua rau cov dej tsis zoo, ua rau cov kab mob hauv dej muaj kev noj qab haus huv, thiab txo qis kev tsim khoom. Kev siv thev naus laus zis kho dej niaj hnub feem ntau tawm tsam los daws cov teeb meem no ib leeg. Txawm li cas los xij, kev sib xyaw ua ke ntawm cov ntxaij lim dej microscreen thiab Moving Bed Biofilm Reactors (MBBR) tau tshwm sim los ua kev daws teeb meem zoo rau kev kho dej aquaculture niaj hnub no. Kab lus no tshawb txog cov ntsiab cai ntawm kev sib koom ua ke no, qhov zoo ntawm nws tus kheej -kev ua haujlwm huv, thiab kev sib koom ua ke nrog MBBR.

Microscreen Filter Technology thiab Nws Daim Ntawv Thov hauv Aquaculture

Lub hauv paus ua haujlwm ntawm Microscreen Lim

Lub tshuab lim microscreen yog cov cuab yeej siv tshuab lim uas siv qhov zoo - pore mesh (feem ntau 20–200 microns) rau kev tshuaj xyuas lub cev. Nyob rau hauv lub tshuab aquaculture, lub microscreen lim ua tiav cov khoom- kua sib cais los ntawm cov txheej txheem hauv qab no:

Inflow thiab Pre-Lim: Aquaculture dej nkag mus rau hauv lub lim los ntawm ib qho inlet, qhov twg cov ntxaij lim dej ntxhib tshem tawm cov khoom loj dua.

Fine Filtration: Dej dhau los ntawm lub nruas rotating microporous, ntxiab suspended solids (SS) ntawm sab hauv.

Tus kheej-Txoj kev ntxuav: Cov khib nyiab khib nyiab raug tshem tawm ntawm qhov siab - siab rov qab los yog lub tshuab scraper.

CCov dej tsis huv: Cov dej lim tawm los ntawm lub mesh mus rau hauv qhov hluav taws xob qhov hluav taws xob.

Lub luag haujlwm tseem ceeb ntawm Microscreen Lim hauv Aquaculture

Kev tshem tawm cov khib nyiab: Ua tau zoo tshem tawm 50-95% ntawm tag nrho cov khoom raug tshem tawm (TSS), txo qis turbidity.

Organic Load Control: Captures uneaten feed (5–25% of input) and feces (15–30% of input).

Kab mob txo: Tshem tawm 30–70% ntawm dawb-floating pathogenic microorganisms.

Dissolved Oxygen Txhim Kho: Txo cov tshuaj oxygen xav tau (COD) los ntawm 10-40%, txhim kho cov qib oxygen yaj.

Kev Tiv Thaiv Kev Tiv Thaiv Kab Ntsig: Npaj dej rau kev kho mob lom (MBBR) los ntawm kev tiv thaiv biofilm clogging.

Technical Parameters thiab xaiv kev txiav txim siab

Kev xaiv yuav tsum xav txog qhov ceev ntawm cov khoom ntim (kg / m³), ​​pub tus nqi (% lub cev hnyav / hnub), thiab cov khoom pov tseg.

MBBR Technology hauv Aquaculture

Cov Ntsiab Cai thiab Tsim

MBBR siv cov khoom siv biofilm tshem tawm kom tshem tawm cov pa phem:

Carrier Properties:

Khoom siv: HDPE

Puab: Cylindrical, cross-puab, ntxeem tau spherical

Qhov chaw thaj tsam: 300-1,200 m² / m³

Fill ratio: 25-70% (zoo tshaj 35-40%).

Biofilm Tsim:

Lub sij hawm colonization: 2-6 lub lis piam (kub-nyob ntawm).

Biofilm thickness: 50-300 µm (zoo tagnrho 100-200 µm).

Microbial muaj pes tsawg leeg: Nitrifiers, denitrifiers, heterotrophs.

Pollutant Tshem Tawm Mechanisms

Ammonia oxidation:

Nitrification tus nqi: 0.5–4 g NH₄⁺-N / m²·hnub (20–30℃).

Cov nyhuv kub (Q₁₀=1.5–2.5).

Organic degradation:

COD tshem tawm: 60-90%; BOD₅ tshem tawm: 70-95%.

Ib nrab Denitrification:

Simultaneous nitrification-denitrification (SND): 15–40%.

Optimized ua hauj lwm Parameters

Synergistic zoo ntawmNruas lim-MBBR Combined Systems

Technical Complementarity

Pollutant Load Distribution:

Microscreen tshem tawm 60-90% cov organic chiv.

MBBR kho cov kuab tshuaj yaj (ammonia, soluble organics).

Tag nrho cov nitrogen tshem tawm: 50–80% (vs . 30–50% rau MBBR ib leeg).

Kev Tiv Thaiv Biofilm:

Microscreen txo cov cab kuj.

Tiv thaiv biofilm smothering (+30% kev ua haujlwm).

Oxygen Hloov Efficiency: Ua ntej-filtration txo qis COD (20–40%), txuag oxygen rau nitrification (+25–50% efficiency).

System Design thiab Performance

Txheej txheem Flow:
Aquaculture effluent → Microscreen (SS tshem tawm) → MBBR (bio-kev kho) → Disinfection/Temperature adjustment → Rov qab mus rau tank.

Kev txiav txim siab tseem ceeb:

Flow txuam: Microscreen muaj peev xwm Ntau dua lossis sib npaug ntawm MBBR tsim ntws.

Hydraulic linkage: Zam kev hloov pauv sai sai rau cov neeg nqa khoom.

Sludge tuav: Microscreen pov tseg (80-90% ya raws) yuav tsum tau kho ntxiv.

Emergency bypass: Tso cai rau microscreen bypass yog tias xav tau.

Kev sib piv (Carp-Crucian System):

Economic thiab Environmental Benefits
Kev txuag nqi: 30–50% cov neeg nqa khoom ntev dua.15–30% qis zog aeration.40–60% txo nqi zog.

Kev Tsim Nyog Tau Txais:

20-50% siab dua stocking ceev.

Pub conversion ratio (FCR) txo los ntawm 0.1–0.3.

30-70% tsawg tus kab mob tshwm sim.

Sustainability:

30-60% txo cov dej khib nyiab.40-70% qis nitrogen emissions.

50-80% tsawg dua sludge vs. activated sludge systems.

Xaus

Lub Nruas Lim-MBBR ua ke ua ke sawv cev rau kev txiav- ntug kev daws rau kev kho dej aquaculture niaj hnub. Los ntawm kev sib koom ua ke ntawm tus kheej- ntxuav cov tshuab lim nrog kev ua haujlwm lom neeg muaj txiaj ntsig, nws daws cov teeb meem ntawm kev ua liaj ua teb siab - ceev thaum txo cov nqi ua haujlwm thiab txhim kho cov khoom tsim tau. Kev nce qib yav tom ntej hauv kev tswj hwm ntse, cov khoom siv, thiab cov qauv tsim qauv yuav ua kom zoo dua rau cov thev naus laus zis no, txhawb nqa kev tsim kho thoob dej yug ntses thoob ntiaj teb.