Recirculating Aquaculture System
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Zhongshan eWater Aquaculture Equipment Technology Limited relying on years of development, it clearly understands the needs of users and the pain points of the industry, and relying on strong technical capabilities to develop high-quality RAS system aquaculture shrimp farming tank fish farming fatchery equipment for sals whiteleg shrimp case that can meet the needs of users and solve the pain points of the industry. Manufactured following the strict management system, our RAS system aquaculture shrimp farming tank fish farming fatchery equipment for sals whiteleg shrimp case has gained a reliable quality. Before its launch, it has passed the tests based on international rules and is certified by several authorities. eWater is worth the investment for those customers seeking business opportunities. Zhongshan eWater Aquaculture Equipment Technology Limited have realized the importance of technology. In recent years, we have been investing heavily in technology improvement and upgrades and the research and development of new products. In this way, we can occupy a more competitive position in the industry.

Place of Origin:Guangdong, ChinaBrand Name:eWater
Model Number:ERAS-AProduct name:system aquaculture shrimp farming tank fish farming fatchery equipment
Application:Penaeus vannamei farming equipmentWater:Brackish water
Factory Visit:availableApplication filed:Modern RAS for shrimp
Main Equipment:Biofilter,protein skimmer,drum filterFish Species:vannamei(whiteleg shrimp)

RAS Case Studies
RAS 
One of the main advantages of a Recirculation Aquaculture System (RAS) is that it maintains a perfect environment with superior water quality at minimum cost. All significant water parameters are monitored online and adjusted accordingly; ensuring optimal fish health and growth.
Together with an optimal environment for fish rearing in tank design and operation, and customized grading and feeding solutions, this is the foundation for predictable aquaculture production and superior harvesting quality for all species.
Essentials of Succesful RAS Farming
1. Filtration:removal of organic matter in the form of settleable solids is the first cleaning step in RAS.
2.Monitoring parameters: a RAS farmer has to make sure that all the important water quality parameters are kept optimal at all times.
3. Feeding strategy: a RAS feed needs to precisely meet the nutritional requirements for optimal and efficient growth.
4.Off flavour control
5.Health management: health management is a critical factor in the profitability of fish farming business, where both experience and expertise are vital.
Project Outline:

1. CustomerFishery from Singapore
2. Project LocationGuangdong Province, China
3. Enquiry Received20th January 2019
4. Order Placed17th March 2019
5. Order Dispatched12th May 2019
6. Implementation: August of 2019

Enquiry:
A fishery from Singapore contacted us requiring a vannamei RAS system. Details are as follows:
1. Project area: 4400 square meters
2. Aquaculture water: 1650~1800 cubic meters
3. Breeding density: 4.5~6 kg / cubic meter
4. Culture Cycle: 4 cycles /year; about 60 days/cycle
Solution

Predesigned Layout
Project Highlights
1. Project Space Size: 4.400 m2
2. Fish Culturing Volume: 1,704m3 (2 units each with 850 m3, 4 racing tanks for each units)
3. Fish Species: Whiteleg shrimp( Penaeus vannamei)
4. Fish Culturing Biomass: 5~6 kg/m3
5. System processing capacity: 240 square meters / hour
6. Cycle: 3 cycles /year; about 60 days/cycle
7. Annual yield : 25.5 tones/year

Water Quality Required:
Salinity: 3 PPT DO: 5 mg / L PH: 6.8-8.0 Ammonia nitrogen: 0.4 PPM,
Nitrite: 0.1 PPM Mechanical filtration accuracy: 58 um
Details Images
Successful Cases

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

Shing (Stinging Catfish)

Heteropneustes Fossilis

Culturing Cycle Time: 140 -160D to 65 - 80 grams size for harvesting
● Biomass: 80 kilograms/m3 at harvesting
● Temp: 20 – 30℃, 23 – 28℃ preferred

Kio (Climbing Perch)

● Culturing Cycle Time: 150 D to 250 grams size for 

harvesting
● Biomass: 100 kilograms/m3 at harvesting
● Temp: 25 -30℃

Anguilla Anguilla

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

50-gram fingerlings

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

Company Profile
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 equipment.

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.
Our Service

Great Service is Our Misson

1. Warranty: 12 months since the shipping date, free maintenance provided. Cost of the spare parts should be paid beyond the warranty. The following conditions are not covered by the warranty.
a) Damaged due to accident or misuse.
b) Damaged by unauthorized dismantling or repairing without permission.
c) Appearance damage
d) Replace the spare parts with the unauthorized ones.
2. For more spare parts (ozone tube, solenoid valve, air compressor, PCB) or any other needs for after-sales service please contact us via email or phone.



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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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