Water-through Aquaculture System

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eWater - Fresh water RAS/Recirculating aquaculture system fish farming equipment for indoor fish farm

eWater - Fresh water RAS/Recirculating aquaculture system fish farming equipment for indoor fish farm price

eWater - Fresh water RAS/Recirculating aquaculture system fish farming equipment for indoor fish farm manufacturer

eWater - Fresh water RAS/Recirculating aquaculture system fish farming equipment for indoor fish farm

We fully utilize the technology to design, manufacture, and test the products.With those advantages mentioned above,Fresh water RAS/Recirculating aquaculture system fish farming equipment for indoor fish farm has been proved to enjoy a wide application and can be widely seen in the field(s) of Other Aquaculture Equipment.

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Product Details

Zhongshan eWater Aquaculture Equipment Technology Limited has set up a team which is mainly engaged in product development. Thanks to their efforts, we have successfully developed recirculating aquaculture system and aquaculture equipment and planned to sell it to the overseas markets. High-end technologies are adopted to manufacture the product.When the product is manufactured and used in the field(s) of Other Aquaculture Equipment, its stability and advantages can be fully played out. Zhongshan eWater Aquaculture Equipment Technology Limited will keep focusing on customers' needs and keep up with the industry trends so as to develop the products that better satisfy customers. Our wish is to cover a wide range of global markets and win wider recognition from customers all over the world.

Place of Origin:	Guangdong, China	Brand Name:	eWater, eWater
Model Number:	EW-RAS	Commodidty:	Recirculating Aaquaculture System
Model:	RAS-GEN	Main Equipment:	Biofilter,protein skimmer,drum filter

RASDescription

MaineWaterRASprocessesandtheequipmentnecessary

Aseriesoftreatmentprocessesisutilizedtomaintainwaterqualityinintensivefishfarmingoperations.Thesestepsareoftendoneinorderorsometimesintandem.Afterleavingthevesselholdingfishthewaterisfirsttreatedforsolidsbeforeenteringabiofiltertoconvertammonia,nextdegassingandoxygenationoccur,oftenfollowedbyheating/coolingandsterilization.Eachoftheseprocessescanbecompletedbyusingavarietyofdifferentmethodsandequipment,butregardlessallmusttakeplacetoensureahealthyenvironmentthatmaximizesfishgrowthandhealth.

Process

Equipmentnecessary

Biolfiltration

denitrifyingbiofilter,MBBRprocessSolidsremoval

drumfilter,sandfilter,proteinskimmerReoxgenating

oxygenconeorlowpressureoxygenatingdevicePHcontrol

degassingdeviceTemperaturecontrol

submergedheaters,heatpumps,chillers,andheatexchangersBiosecurity

UVsterilizer,ozonegenerator

Biofiltration

AllRASreliesonbiofiltrationtoconvertammonia(NH4+andNH3)excretedbythefishintonitrate.

Nitrifyingbacteriaarechemoautotrophsthatconvertammoniaintonitritethennitrate.Abiofilterprovidesasubstrateforthebacterialcommunity,whichresultsinthickbiofilmgrowingwithinthefilter.Waterispumpedthroughthefilter,andammoniaisutilizedbythebacteriaforenergy.Nitrateislesstoxicthanammonia(>100mg/L),andcanberemovedbyadenitrifyingbiofilterorbywaterreplacement.

SolidsFiltrationInadditiontotreatingtheliquidwasteexcretedbyfishthesolidwastemustalsobetreated,thisisdonebyconcentratingandflushingthesolidsoutofthesystem.Removingsolidsreducesbacteriagrowth,oxygendemand,andtheproliferationofdisease.

TypicalRASsolidsremovalinvolvesasandfilterorparticlefilter.AnothercommonmethodistheuseofamechanicaldrumfilterInordertoremoveextremelyfineparticlesorcolloidalsolidsaproteinfractionatormaybeusedwithorwithouttheadditionofozone(O3).

PHControl

InallRASpHmustbecarefullymonitoredandcontrolled.ThefirststepofnitrificationinthebiofilterconsumesalkalinityandlowersthepHofthesystem.KeepingthepHinasuitablerangeiscrucialtomaintainthehealthofboththefishandbiofilter.pHistypicallycontrolledbytheadditionofalkalinityintheformoflime(CaCO3)orsodiumhydroxide(NaOH).pHcanalsobecontrolledbydegassingCO2inapackedcolumnorwithanaerator,thisisnecessaryinintensivesystemsespeciallywhereoxygenationinsteadofaerationisusedintankstomaintainO2levels.

Temperaturecontrol

Allfishspecieshaveapreferredtemperatureaboveandbelowwhichthatfishwillexperiencenegativehealtheffectsandeventuallydeath.Temperaturealsoplaysanimportantroleindissolvedoxygen(DO)concentrations,withhigherwatertemperatureshavinglowervaluesforDOsaturation.Temperatureiscontrolledthroughtheuseofsubmergedheaters,heatpumps,chillers,andheatexchangers.[13]Allfourmaybeusedtokeepasystemoperatingattheoptimaltemperatureformaximizingfishproduction.

Biosecurity

DiseaseoutbreaksoccurmorereadilywhendealingwiththehighfishstockingdensitiestypicallyemployedinintensiveRAS.Outbreakscanbereducedbyoperatingmultipleindependentsystemswiththesamebuildingandisolatingwatertowatercontactbetweensystemsbycleaningequipmentandpersonnelthatmovebetweensystems.AlsotheuseofaUltraViolet(UV)orozonewatertreatmentsystemreducesthenumberoffreefloatingvirusandbacteriainthesystemwater.Thesetreatmentsystemsreducethediseaseloadingthatoccursonstressedfishandthusreducethechanceofanoutbreak.

DetailsImages

SuccessfulCases

PabdaCatfish(OmpokPabda)

●CulturingCycleTime:90–110Dto40-55gramssize

forharvesting

●Biomass:60kilograms/m3atharvesting ●Temp:15–30℃,22–27℃preferred

RASusedtogrow americaneel

●CulturingCycleTime:150Dto150gramssizefrom

50-gramfingerlings

●Biomass:60kilograms/m3atharvesting●Temp:26-30℃

Ouradvantage

▶Reducedwaterrequirementsascomparedtoracewayorpondaquaculturesystems.

▶Reducedlandneedsduetothehighstockingdensity.▶Siteselectionflexibilityandindependencefromalarge,cleanwatersource.▶Reductioninwastewatereffluentvolume.

▶Increasedbiosecurityandeaseintreatingdiseaseoutbreaks.▶Abilitytocloselymonitorandcontrolenvironmentalconditionstomaximizeproductionefficiency.Similarly,independencefromweatherandvariableenvironmentalconditions.

CompanyProfile

Aboutewater

ZhongshaneWaterAquacultureEquipmentTechnologyLimitedisaprofessionalcompanyengagedindesign, productionandsalesofRecirculatingAquaculture Systemaswellasaquacultureequipment.Ewateris focusedonthedevelopmentandmanufacturingof industrialrecirculatingaquaculturesystemsolutions,anditsproductdesignandproduction,includingdrum filters,proteinskimmers,biologicalfilters,aeration equipment,disinfectionequipment,heatpumpsand waterqualitymonitorequipment.

Weworkwithtop-levelaquacultureresearchinstitutes

andexpertstodevelopbestsolutionsforourcustomers inaquacultrureindustry.Ourengineeringteamis committedtodevelopbestpracticesforeachequipmentandRASbasedoncustomers'needs.Wecontinuetobereliableandhonestinwhatwedoandhowweact.

Ourm

issionistoimprovesustainabilityandprofitabilityfor customers,andbeavaluablepartnerforcustomers'

long-termbusiness.

Certifications

Exhibition

ExhibitioninNanningCityGuangxiProvince，China

ExhibitioninZhanjiangCityGuangdongProvince，China

InstallationServices

Ifneeded,wecanprovideon-siteinstallationservices.

GreatServiceisOurMisson

●Consultingserviceavailableandcustomdesignsarewelcomed!

●Weofferpracticalsolutions,premiumqualityproductsalongsidecompetitivepricesandpromptdelivery.

●Alltheequipmentareguaranteedfor2yearsandlife-timewarrantyexceptforthewearingparts.

●Supportonsiteinstallationandsendingengineerfordebuggingondemands.

●After-salesserviceandcontent:Ifthequalityproblemsoccur;eventheequipmentlosetheabilityofworking,wewill repairorreplacethemfreeofchargeduringthewarrantyperiod.Theproductislife-longmaintenanceandwewill

provideall-roundservicesexceptforfactorssuchasartificialdamageorirresistibleforce.

On-siteinstallationservicesin Uzbekistan

On-siteinstallationservicesin Bangladesh

CustomerPhotos

Youarewelcometovisitourfactory.

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eWater - Ewater aquaculture tilapia farming system indoor RAS Cobia Fish Project in Australia

The manufacture of the Ewater aquaculture tilapia farming system indoor RAS Cobia Fish Project in Australia not only keeps up with the market development trend and keeps pace with the times, but also through professional industry analysis and precise market positioning, and relies on strong production strength and strong technical force.
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eWater - 100m3 ewater Recirculating Aquaculture System equipment for oyster and Tilapia fish farming

100m3 ewater Recirculating Aquaculture System equipment for oyster and Tilapia fish farming has won high attention and praise from customers.Technology is applied to better meet market demand.It will surely accommodate customers' unique temperament and taste.
eWater - Aquaculture Farming System Indoor RAS Project for Cobia Fish in Australia with equipment Recirculating aquaculture system

Since inception, we have been emphasizing the importance of technology. We have continuously upgraded technology and tried to make full use of the technologies to make finished products multi-functional and characteristic. Throughout the field(s) of Other Aquaculture Equipment, the product is particularly useful.

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eWater - Ewater aquaculture tilapia farming system indoor RAS Cobia Fish Project in Australia

eWater - Circular Fish Farm with Tanks for Commercial Fish Farm ras system equipment customize indoor ras fish farming

eWater - 100m3 ewater Recirculating Aquaculture System equipment for oyster and Tilapia fish farming

eWater - Aquaculture Farming System Indoor RAS Project for Cobia Fish in Australia with equipment Recirculating aquaculture system

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eWater - Fresh water RAS/Recirculating aquaculture system fish farming equipment for indoor fish farm

We fully utilize the technology to design, manufacture, and test the products.With those advantages mentioned above,Fresh water RAS/Recirculating aquaculture system fish farming equipment for indoor fish farm has been proved to enjoy a wide application and can be widely seen in the field(s) of Other Aquaculture Equipment.

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Our mission is to improve sustainability and profitability for customers, and be a valuable partner for customers’ long-term business.

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They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.