Aquaculture Biofilter
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Zhongshan eWater Aquaculture Equipment Technology Limited, as an innovative high-tech enterprise, has been focused on product innovation. We have successfully worked out the Plastic bio filter media for ras aquaculture system,which is plan to sell it out to the global markets. Having carried out multiple tests, our technical staff has proved the use of technology ensures Plastic bio filter media for ras aquaculture system performance can be fully played out.Customers engaged in the field(s) of Water Treatment Machinery speak highly of our product. Zhongshan eWater Aquaculture Equipment Technology Limited are full of passion for what we are doing now. Nurtured by the corporate culture of unity and integrity, every employee is optimistic and constantly looking for more and better methods to manufacture the products. Our vision is to create benefits for our partners and customers.

Condition:NewApplicable Industries:Aquaculture
Showroom Location:Bangladesh, UzbekistanVideo outgoing-inspection:Provided
Machinery Test Report:ProvidedMarketing Type:New Product 2020
Warranty of core components:1 YearCore Components:Pump
Place of Origin:Guangdong, ChinaBrand Name:eWater
Material:HDPE, HDPEWeight:10g
Size:25x4 mmWarranty:5 years
Productivity:20000L/Hour, 15000L/Hour, 30000L/Hour, 60000L/Hour, 120000L/HourProduct name:Plastic bio filter media for ras aquaculture system
Color:WhiteLifespan:30 years
Application:reducing water exchanges by converting ammonia to nitrateAfter Warranty Service:No service, Online support
Local Service Location:Bangladesh, UzbekistanAfter-sales Service Provided:Video technical support, Field maintenance and repair service

RAS Description

Main eWater RAS processes and the equipment necessary

A series of treatment processes is utilized to maintain water quality in intensive fish farming operations. These steps are often done in order or sometimes in tandem. After leaving the vessel holding fish the water is first treated for solids before entering a biofilter to convert ammonia, next degassing and oxygenation occur, often followed by heating/cooling and sterilization. Each of these processes can be completed by using a variety of different methods and equipment, but regardless all must take place to ensure a healthy environment that maximizes fish growth and health. 

Process
Equipmentnecessary
Biolfiltration
denitrifyingbiofilter,MBBRprocess
Solidsremoval
drumfilter,sandfilter,proteinskimmer
Reoxgenating
oxygenconeorlowpressureoxygenatingdevice
PHcontroldegassingdeviceTemperaturecontrolsubmergedheaters,heatpumps,chillers,andheatexchangersBiosecurityUVsterilizer,ozonegenerator



Product Description
Biofiltration System
All RAS relies on biofiltration to convert ammonia (NH4+ and NH3) excreted by the fish into nitrate.
Nitrifying bacteria are chemoautotrophs that convert ammonia into nitrite then nitrate. A biofilter provides a substrate for the bacterial community, which results in thick biofilm growing within the filter. Water is pumped through the filter, and ammonia is utilized by the bacteria for energy. Nitrate is less toxic than ammonia (>100 mg/L), and can be removed by a denitrifying biofilter or by water replacement.
Details Images
Successful Cases

RAS used to grow Pabda in Bangladesh

Farming cycle time: 120 days (fingerlings to 80 grams for 

harvesting)
Biomass ( stock density): 80 kg /m
³
RAS water volume: 285 m
³
RAS water flow: 240 m
³/hour

RAS used to grow Tilapia in Jordan

Three tanks for grow-out and one tank for harvesting

Water volume: 1182 m³ 
12 small tanks for fingerlings nursery, each tank 36m³
Biomass(stock density) at harvesting : 100 kg /m³

RAS water flow: 1000 m³ /hour

Pabda Catfish (Ompok Pabda)

● Culturing Cycle Time: 90 – 110 D to 40 - 55 grams size

for harvesting

● Biomass: 60 kilograms/m3 at harvesting  
● Temp: 15 – 30 ℃, 22 – 27 ℃ preferred

RAS used to grow  American eel

● Culturing Cycle Time: 150D to 150 grams size from

50-gram fingerlings

● Biomass: 60 kilograms/m3 at harvesting
● Temp: 26-30℃

Company Profile


About ewater

Zhongshan eWater Aquaculture Equipment Technology Limited is a professional company engaged in design, production and sales of Recirculating Aquaculture System as well as aquaculture equipment. Ewater is focused on the development and manufacturing of industrial recirculating aquaculture system solutions,and its product design and production, including drum filters, protein skimmers, biological filters, aeration equipment, disinfection equipment, heat pumps and 
water quality monitor quipment.
We work with top-level aquaculture research institutes and experts to develop best solutions for our customers in aquacultrure industry. Our engineering team is committed to develop best practices for each equipment and RAS based on customers' needs. We continue to be reliable and honest in what we do and how we act.
Our mission is to improve sustainability and profitability for customers,and be a valuable partner for customers' 
long-term business.
Exhibition

Exhibition in Nanning City Guangxi Province,China

Exhibition in Zhanjiang City Guangdong Province,China

Installation Services

If needed, we can provide on-site installation services with turn-key project
Great Service is Our Misson

● Consulting service available and custom designs are welcomed!
● We offer practical solutions, premium quality products along side competitive prices and prompt delivery.
● All the equipment are guaranteed for 2 years and life-time warranty except for the wearing parts.
● Support onsite installation and sending engineer for debugging on demands.
● After-sales service and content: If the quality problems occur; even the equipment lose the ability of working, we will  repair or replace them free of charge during the warranty period. The product is life-long maintenance and we will 

provide all-round services except for factors such as artificial damage or irresistible force.


On-site installation services in Uzbekistan

On-site installation services in Bangladesh


Customer Photos

You are welcome to visit our factory.
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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 now widely exporting to 200 countries.

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