Los ntawm: Sunny WuKate@aquasust.com)
Hnub Kawg Ua Ntawv Thov: Lub Yim Hli 11, 2021
Post Tags: Tailwater kho ntawm RAS System
Lub Industrialized Recirculating Aquaculture System (RAS) yog ib qho kev tsim khoom siv thoob dej yug ntses tshiab niaj hnub no uas suav nrog engineering, chaw, nplai, qauv, thiab cov ntaub ntawv thev naus laus zis tsim los ntawm kev lag luam niaj hnub. Nws muaj cov chaw tsim khoom thiab cov cuab yeej siv siab heev, kev tswj xyuas zoo, thiab kev ua dej yug ntses. Ib puag ncig yog tswj tau, cov khoom lag luam aquaculture tsis txwv los ntawm thaj chaw thaj chaw, cov khoom lag luam aquaculture siab, cov khoom lag luam zoo thiab kev nyab xeeb tau lees paub, thiab cov khoom lag luam tuaj yeem sau npe tsis tu ncua, thiab kev sib raug zoo, kev lag luam thiab cov txiaj ntsig zoo. Nws tau lees paub thoob ntiaj teb raws li kev lag luam aquaculture niaj hnub. Txoj kev loj hlob.
Nyob rau hauv xyoo tas los no, lub xeev tau them nyiaj ntau dua rau kev tiv thaiv ecological thiab ib puag ncig. Thaum tsim kev nuv ntses, ntau yam teeb meem dej paug tau tshwm sim. Yog li ntawd, txoj kev loj hlob ntawm recirculating aquaculture yog nce sai sai los ntawm aquaculture neeg ua liaj ua teb.
Nyob rau hauv xyoo tas los no, dej aquaculture technology tau nkag mus rau lub sijhawm ntawm kev loj hlob sai, thiab cov qauv tau pib paub tab. Muaj ntau thiab ntau txoj kev xaiv rau kev yug me nyuam, ua tiav cov cuab yeej siv, thiab kev kho dej. Muaj ntau qhov kev vam meej ntawm kev nthuav dav aquaculture. Ntau tus neeg ua liaj ua teb aquaculture tau coj cov txiaj ntsig nyiaj txiag ntau. Nyob rau hauv ib cheeb tsam aquaculture high-density, tsis yog tsuas yog ib lub cubic meter ntawm cov dej tsim tau kaum ob kilograms ntawm ntses, tab sis kuj cov dej phwj tuaj yeem txhim kho tau zoo.
Kev rov siv dua ntawm cov dej aquaculture yog qhov tseem ceeb ntawm kev siv dej thoob dej yug ntses. Nws lub ntsiab technical feature yog siv aeration, nag lossis daus, pom thiab lwm yam kev tshem tawm cov metabolites thiab bait residues ntawm cov khoom aquaculture, kom cov dej zoo tuaj yeem ua kom huv si kom ua tiav lub hom phiaj ntawm kev rov siv dua. Lub tank sedimentation thiab lim nyob rau hauv circulating aquaculture mode (RAS) tsuas yog tshem tawm cov pa phem. Aeration tuaj yeem txhawb kev loj hlob ntawm aerobic microorganisms hauv dej, yog li degrading organic pollutants hauv dej.
Kev puas tsuaj ntawm ammonia nitrogen rau cov kab mob hauv dej feem ntau yog hais txog kev puas tsuaj ntawm non-ionic ammonia. Tom qab uas tsis yog-ionic ammonia nkag mus rau hauv cov kab mob hauv dej, nws yuav muaj kev cuam tshuam loj heev rau cov tshuaj tiv thaiv hydrolysis enzymatic thiab daim nyias nyias stability, uas qhia tau hais tias ua pa nyuaj, tsis pub noj, tsis muaj zog, convulsions, Phenomenon xws li coma cuam tshuam rau lub cev, biochemical qhia thiab kev loj hlob. tej yam kev mob ntawm cov kab mob hauv dej, thiab tuaj yeem ua rau muaj coob tus neeg tuag ntawm cov kab mob hauv dej hauv cov xwm txheej hnyav.
Nyob rau hauv circulating aquaculture, lub lim dej lom yog cov cuab yeej tseem ceeb tshaj plaws rau kev kho mob ntawm tus Tsov tus tw, uas yog sib npaug rau lub plawv ntawm lub cev. Hauv kev xyaum ntawm ntau txoj haujlwm, cov txiaj ntsig ntawm MBBR txav txaj txheej txheem yog qhov tshwj xeeb tshaj yog pom tseeb, uas tuaj yeem tshem tawm cov ammonia nitrogen hauv cov dej hauv dej hiav txwv.
MBBR txheej txheem tail dej kho txheej txheem yog raws li nram no:
Tail-dej-bubble-flotation-biological-denitrification-aerated biological filter-ultraviolet disinfection-pas
MBBR biofiltration tam sim no muaj ob txoj kev xaiv rau txhua qhov muab tub lim:
1. Polyurethane bio-filler (square shape), qhov zoo dua yog tias cov yeeb yaj kiab ceev ceev, qhov chaw tshwj xeeb yog loj, qhov tsis zoo yog tias lub neej luv luv, qhov pores me me, thiab cov biofilm tsis yooj yim poob. tom qab kev laus, uas cuam tshuam cov nyhuv ntawm ammonia nitrogen tshem tawm nyob rau theem tom ntej.
2. High-density polyethylene bio-filler (cylindrical thiab ntxeem tau), qhov kom zoo dua yog tias nws muaj lub neej ntev, biofilm tuaj yeem txiav tawm tom qab kev laus, thiab tsim cov biofilm tshiab. Qhov tsis zoo yog tias cov yeeb yaj kiab dai ceev qeeb qeeb dua li ntawm polyurethane bio-filler, feem ntau yog li ntawm 15- Dai zaj duab xis hauv 30 hnub.
Tam sim no, lub lag luam tseem ceeb thoob ntiaj teb xaiv siv high-density polyethylene bio-filler nrog rau thaj chaw tshwj xeeb ntau dua 1000m2 / m3.
