Baihuipu Launches Containerized Seawater Desalination Plant
Baihuipu has launched a containerized seawater desalination plant, with the first unit shipped this month from our Guangdong works to a coastal resort in Southeast Asia that currently relies on barge-delivered water. The plant fits ultrafiltration pretreatment, a high-pressure SWRO stack, an energy recovery device and the dosing and control systems into two standard containers. It was assembled and run on a test loop before dispatch, so the site work is limited to a level pad, seawater intake, product water tie-in and power. The design target is 500 m3 per day of potable water from open-intake seawater at roughly 35,000 mg/L TDS.
Key Features and Benefits
A Complete Train Inside Two Containers
One container holds the intake pump, dual-media filtration, ultrafiltration rack, cartridge filters and CIP set. The second holds the high-pressure pump, SWRO membrane vessels, energy recovery device and the control panel. Pipework between the two is flanged and numbered, so reconnecting on site follows a drawing rather than a judgement call. Where several streams need joint treatment, Baihuipu Completes Zero Liquid Discharge Retrofit Project system is the more detailed reference. We set out the wider process route in brackish water RO system.
Keeping the whole train together removes the usual coordination problem on small island and coastal jobs, where a civil contractor, a membrane supplier and an integrator each work to a different schedule. One supplier now owns the hydraulic and control interfaces. Plants dealing with comparable loads face many of the same trade-offs covered in Baihuipu Upgrades Integrated MBR Sewage Treatment Unit.
Energy Recovery Sized for the Duty
The isobaric energy recovery device takes the pressure from the concentrate stream and transfers it to part of the feed, which cuts the load on the high-pressure pump. On a 500 m3/d unit at 42 percent recovery, that is the difference between roughly 4.5 and 2.8 kWh per cubic metre of product water depending on feed temperature and membrane age. Where several streams need joint treatment, Baihuipu Showcases Water Treatment Systems at Industry Expo is the more detailed reference.
We select the device from the actual design recovery and brine flow, not from a catalogue size. A unit quoted for a higher recovery than it will actually run at simply carries a device that never reaches its efficient range.
Factory Testing Before It Ships
Both containers are connected on a test loop in the works and run with a saline feed before crating. Pressure tests, PLC sequence checks, dosing pump calibration and a permeate conductivity trend are recorded and shipped with the unit. Faults found in the factory cost a day; the same faults found on a remote site cost weeks of travel and lost production.
Clients can witness the factory run in person or over a video link, and the test record becomes part of the handover documentation rather than something assembled afterwards.
Technical Specifications
Standard containerized configuration compared with a conventional site-built SWRO plant of similar output:
| Item | Site-Built SWRO Plant | Baihuipu Containerized Unit |
|---|---|---|
| Design capacity | project-specific | 500 m3/d standard, 250-1000 m3/d range |
| Pretreatment | separate civil structures | UF + media filtration in container |
| Site installation | weeks of mechanical erection | 2-5 days of connections |
| Specific energy | 3.5-5.0 kWh/m3 | 2.8-3.5 kWh/m3 with energy recovery |
| Factory test | component level | full train wet test with records |
Why Choose Baihuipu as Your Manufacturer
Two decades in this industry teaches you that most treatment problems are procurement problems in disguise. Someone bought the cheapest skid, nobody checked the equalisation volume, and eighteen months on the plant cannot hold its consent limit. We build differently.
Own Factory, Real Capacity
Tanks, skids, control panels and membrane housings are built in our own Guangdong facility. Nothing critical is subcontracted, which is why we can commit to delivery dates and hold quality across a batch instead of hoping the shop floor gets it right.
20+ Years Across Dozens of Industries
Experience matters most when your waste stream behaves nothing like the textbook example. We have dealt with toxic organics, heavy metals, extreme salinity and refractory COD in food processing, chemical manufacturing, electroplating, mining and municipal projects.
Complete Units and Turnkey Plants
Whether you need a single package unit or a turnkey installation with civil works, we deliver the entire treatment scheme. Our engineering team covers process, mechanical, electrical and automation so one party owns the outcome.
Spares, Service and Commissioning
Membranes, dosing pumps, diffusers, instrumentation and blowers are stocked for the systems we sell. Our control systems support remote diagnostics, and we can put an engineer on site for commissioning, training or an unplanned shutdown.
Let's Look at Your Numbers
Share your water analysis and site constraints and we will give you a straight assessment of the process route and the realistic operating cost before you commit to anything. Contact our engineers at WhatsApp: +86 13631765076, or find us at hkbhp.com.
WhatsApp: +86 13631765076
Customer FAQs
What feed water can a containerized seawater desalination plant handle?
Open-intake seawater around 30,000-38,000 mg/L TDS is the design basis. Beach wells, brackish feed and high-turbidity coastal water need a different pretreatment section, which we configure from the raw water analysis before fabrication.
Does the product water meet drinking water limits?
SWRO permeate is low in hardness and needs remineralisation and disinfection before distribution. We supply the calcite or dosing stage and a chlorine contact step as part of the package where potable use is specified.
How much site preparation is required?
A level concrete pad, a screened seawater intake, a product water line, a concentrate outfall and a three-phase power supply. No process building is needed; the containers are the building.
What spares should the operator hold?
UF and RO cartridge filters, membrane elements over time, high-pressure pump seals, dosing pump parts and instrument calibration solutions. A recommended two-year spares kit ships with the unit. The operating detail behind this sits in energy recovery device.
For adjacent technical angles, Seawater Desalination SWRO Plants system covers the same equipment from a different duty.
