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36T/H BWRO Desalination System for an Industrial Park in Douala, Cameroon
1. Project Overview
Zhongnuo supplied a 36T/H (36000L/H) BWRO brackish water desalination system for a coastal industrial park in Douala, Cameroon. The system efficiently treats saline well water affected by coastal saltwater intrusion, delivering stable centralized purified water for factory industrial processing and equipment cleaning.
Previously, the industrial park relied on unstable municipal water supply and scattered small-scale water treatment units. This causedinconsistent water quality, duplicated equipment investment, and complicated decentralized maintenance. To solve these pain points, the client adopted our large-capacity centralized BWRO plant to standardize park-wide water quality and enhance supply reliability.
2. Project Information
|
Item
|
Project Details
|
|
Project Location
|
Douala, Cameroon
|
|
Application
|
Industrial park centralized water supply
|
|
Raw Water Source
|
Coastal brackish well water (saltwater intrusion affected)
|
|
Rated Capacity
|
36m³/h (36000L/H)
|
|
Core Technology
|
Multi-stage Pretreatment + Single-pass BWRO Desalination
|
|
Installation Type
|
Skid-mounted integrated structure
|
|
Control Mode
|
Full-automatic PLC operation
|
|
Water Application
|
Industrial production & equipment cleaning
|
3. Customer Challenges
The coastal industrial park faced multiple typical water supply and treatment challenges:
• Elevated TDS, chloride and hardness in local brackish well water
• High risks of pipeline scaling, blockage and equipment corrosion
• Seasonal groundwater salinity fluctuations caused by coastal tides
• Frequent municipal water supply interruptions restricting production
• Unstable water quality from decentralized small treatment units
• High repeated investment and consumable maintenance costs
• Continuous large water demand from multiple manufacturing factories
The client required a large-capacity, high-stability brackish water desalination system to adapt to fluctuating raw water quality and achieve unified park water supply standards.
4. Customized BWRO Water Treatment Solution
Based on local groundwater quality analysis, target water standards and peak water consumption, Zhongnuo customized an industrial-grade single-pass BWRO desalination system. The multi-stage pretreatment removes turbidity, suspended solids and organic matter to eliminate membrane fouling and scaling risks. Professional brackish water RO membranes effectively reduce TDS, hardness and chloride content, ensuring stable low-salinity finished water for the park distribution network.
4.1 Complete Treatment Process Flow
Brackish Well Water → Raw Water Tank → Feed Pump → Multimedia Filter → Activated Carbon Filter → Antiscalant Dosing System → 5μm Cartridge Filter → High-Pressure Pump → BWRO Membrane System → Product-Water Tank → Factory Distribution Network
Note: Additional pretreatment or upgraded membrane configuration is available if raw water salinity, iron, manganese or turbidity exceeds conventional design range.
4.2 Main Treatment Functions
|
Treatment Unit
|
Core Function
|
|
Multimedia Filter
|
Remove sediment, turbidity and suspended solids
|
|
Activated Carbon Filter
|
Reduce organic matter and peculiar odor
|
|
Antiscalant Dosing System
|
Prevent mineral scaling on RO membrane surface
|
|
5μm Cartridge Filter
|
Block fine particles to protect high-pressure pump and membranes
|
|
High-Pressure Pump
|
Provide stable operating pressure for RO desalination
|
|
BWRO Membrane System
|
Reduce TDS, hardness, chloride and dissolved salts
|
|
Product Water Tank
|
Balance water production and factory consumption
|
|
Distribution System
|
Stably supply purified water to all factory workshops
|
5. Core System Configuration
The 36T/H industrial BWRO system is equipped with full industrial-grade configurations to adapt to long-term continuous operation in African coastal complex water conditions:
• High-rejection professional brackish water RO membranes
• Automatic antiscalant chemical dosing system
• Intelligent PLC control & automatic membrane flushing
• Online TDS/conductivity, pressure and flow real-time monitoring
• Automatic high/low pressure protection function
• Automatic tank liquid level control system
• Industrial anti-corrosion pipelines & compact skid-mounted frame
• Optional CIP membrane cleaning system & remote data monitoring
6. Technical Parameters
|
Parameter
|
Project Specification
|
|
Rated Product Water Capacity
|
36m³/h
|
|
Feed Water Type
|
Coastal brackish groundwater
|
|
RO Configuration
|
Single-pass Industrial BWRO
|
|
Typical Salt Rejection
|
≥97% (under design conditions)
|
|
Water Recovery Rate
|
Customized based on complete water analysis
|
|
Control System
|
Full-automatic PLC intelligent control
|
|
Monitoring Items
|
Conductivity/TDS, flow and pressure
|
|
Installation Method
|
Skid-mounted
|
|
Power Supply
|
Site customized voltage and frequency
|
Note: Actual water yield, recovery rate and water quality are affected by raw water salinity, ionic composition, temperature and operating conditions.
7. Project Operation Results
After official commissioning and stable operation, the 36T/H BWRO desalination plant completely solved the water supply problems of the Douala industrial park, achieving the following core benefits:
-
• Effectively reduced well water TDS, hardness and chloride content
-
• Greatly lowered pipeline scaling and equipment corrosion risks
-
• Realized unified and stable water quality standards for all factories
-
• Eliminated production interruptions caused by unstable municipal water
-
• Replaced scattered decentralized treatment equipment to reduce costs
-
• Simplified daily operation and centralized maintenance management
-
• Avoided repeated equipment investment and resource waste
-
• Guaranteed continuous and stable industrial production
Note: The final applicability of product water shall be confirmed according to the individual factory’s specific process water standards.
8. Advantages of Centralized BWRO Treatment
Centralized brackish water desalination for industrial parks is far more cost-effective than single-factory decentralized systems:
-
• Unified real-time water quality monitoring and standard management
-
• Centralized dosing and consumable management to save costs
-
• Consistent system operation and maintenance standards
-
• Simplified staff training and daily equipment maintenance
-
• Flexible water distribution for different production areas
-
• Reserved system capacity for future park expansion
-
• Effectively reduces duplicated capital investment
For factories requiring higher-purity process water, secondary polishing equipment such as double-pass RO or EDI can be installed on-site.
9. FAQ
Q: Can BWRO treat groundwater affected by seawater intrusion?
A: Yes. It works stably for slightly salinized groundwater within BWRO design range. Heavily salinized water close to seawater TDS requires a professional SWRO system.
Q: Can the system handle seasonal TDS fluctuations?
A: It adapts to normal seasonal water quality fluctuations. We design the system based on annual maximum and minimum water quality data to ensure year-round stability.
Q: Does the equipment support 24-hour continuous operation?
A: Yes. The industrial-grade BWRO system supports fully automatic continuous operation. Matching water tanks and standby pumps are recommended for zero-interruption production scenarios.
Q: How is the system water recovery rate determined?
A: The recovery rate is scientifically calculated based on hardness, alkalinity, silica, sulfate and other scaling ions to avoid membrane scaling.
Q: Can the treated water be used for drinking?
A: Yes, with optional disinfection, pH adjustment and remineralization. Final drinking water safety must pass local official laboratory testing.
Q: Can BWRO eliminate pipeline corrosion completely?
A: It reduces salinity and chloride to lower corrosion risks. The final anti-corrosion effect is also related to water pH, pipeline material and distribution conditions.
10. Custom Project & Quotation
To obtain an accurate customized BWRO desalination solution and quotation for similar coastal industrial water projects, please provide the following information:
-
• Complete groundwater full water quality analysis report
-
• Seasonal maximum and minimum TDS and turbidity values
-
• Chloride, sulfate, alkalinity, hardness, silica, iron and manganese content
-
• Raw water pH, temperature and daily water fluctuation
-
• Required product water quality standard and water usage
-
• Peak hourly water demand and total daily water consumption
-
• Local power supply voltage, frequency and operating hours
-
• On-site installation space conditions and delivery requirements
Zhongnuo provides one-stop customized BWRO desalination solutions for African coastal industrial parks, including professional process design, factory pre-testing, on-site installation guidance and long-term technical support.
1. Project Overview
Zhongnuo supplied a 36T/H (36000L/H) BWRO brackish water desalination system for a coastal industrial park in Douala, Cameroon. The system efficiently treats saline well water affected by coastal saltwater intrusion, delivering stable centralized purified water for factory industrial processing and equipment cleaning.
Previously, the industrial park relied on unstable municipal water supply and scattered small-scale water treatment units. This causedinconsistent water quality, duplicated equipment investment, and complicated decentralized maintenance. To solve these pain points, the client adopted our large-capacity centralized BWRO plant to standardize park-wide water quality and enhance supply reliability.
2. Project Information
|
Item
|
Project Details
|
|
Project Location
|
Douala, Cameroon
|
|
Application
|
Industrial park centralized water supply
|
|
Raw Water Source
|
Coastal brackish well water (saltwater intrusion affected)
|
|
Rated Capacity
|
36m³/h (36000L/H)
|
|
Core Technology
|
Multi-stage Pretreatment + Single-pass BWRO Desalination
|
|
Installation Type
|
Skid-mounted integrated structure
|
|
Control Mode
|
Full-automatic PLC operation
|
|
Water Application
|
Industrial production & equipment cleaning
|
3. Customer Challenges
The coastal industrial park faced multiple typical water supply and treatment challenges:
• Elevated TDS, chloride and hardness in local brackish well water
• High risks of pipeline scaling, blockage and equipment corrosion
• Seasonal groundwater salinity fluctuations caused by coastal tides
• Frequent municipal water supply interruptions restricting production
• Unstable water quality from decentralized small treatment units
• High repeated investment and consumable maintenance costs
• Continuous large water demand from multiple manufacturing factories
The client required a large-capacity, high-stability brackish water desalination system to adapt to fluctuating raw water quality and achieve unified park water supply standards.
4. Customized BWRO Water Treatment Solution
Based on local groundwater quality analysis, target water standards and peak water consumption, Zhongnuo customized an industrial-grade single-pass BWRO desalination system. The multi-stage pretreatment removes turbidity, suspended solids and organic matter to eliminate membrane fouling and scaling risks. Professional brackish water RO membranes effectively reduce TDS, hardness and chloride content, ensuring stable low-salinity finished water for the park distribution network.
4.1 Complete Treatment Process Flow
Brackish Well Water → Raw Water Tank → Feed Pump → Multimedia Filter → Activated Carbon Filter → Antiscalant Dosing System → 5μm Cartridge Filter → High-Pressure Pump → BWRO Membrane System → Product-Water Tank → Factory Distribution Network
Note: Additional pretreatment or upgraded membrane configuration is available if raw water salinity, iron, manganese or turbidity exceeds conventional design range.
4.2 Main Treatment Functions
|
Treatment Unit
|
Core Function
|
|
Multimedia Filter
|
Remove sediment, turbidity and suspended solids
|
|
Activated Carbon Filter
|
Reduce organic matter and peculiar odor
|
|
Antiscalant Dosing System
|
Prevent mineral scaling on RO membrane surface
|
|
5μm Cartridge Filter
|
Block fine particles to protect high-pressure pump and membranes
|
|
High-Pressure Pump
|
Provide stable operating pressure for RO desalination
|
|
BWRO Membrane System
|
Reduce TDS, hardness, chloride and dissolved salts
|
|
Product Water Tank
|
Balance water production and factory consumption
|
|
Distribution System
|
Stably supply purified water to all factory workshops
|
5. Core System Configuration
The 36T/H industrial BWRO system is equipped with full industrial-grade configurations to adapt to long-term continuous operation in African coastal complex water conditions:
• High-rejection professional brackish water RO membranes
• Automatic antiscalant chemical dosing system
• Intelligent PLC control & automatic membrane flushing
• Online TDS/conductivity, pressure and flow real-time monitoring
• Automatic high/low pressure protection function
• Automatic tank liquid level control system
• Industrial anti-corrosion pipelines & compact skid-mounted frame
• Optional CIP membrane cleaning system & remote data monitoring
6. Technical Parameters
|
Parameter
|
Project Specification
|
|
Rated Product Water Capacity
|
36m³/h
|
|
Feed Water Type
|
Coastal brackish groundwater
|
|
RO Configuration
|
Single-pass Industrial BWRO
|
|
Typical Salt Rejection
|
≥97% (under design conditions)
|
|
Water Recovery Rate
|
Customized based on complete water analysis
|
|
Control System
|
Full-automatic PLC intelligent control
|
|
Monitoring Items
|
Conductivity/TDS, flow and pressure
|
|
Installation Method
|
Skid-mounted
|
|
Power Supply
|
Site customized voltage and frequency
|
Note: Actual water yield, recovery rate and water quality are affected by raw water salinity, ionic composition, temperature and operating conditions.
7. Project Operation Results
After official commissioning and stable operation, the 36T/H BWRO desalination plant completely solved the water supply problems of the Douala industrial park, achieving the following core benefits:
-
• Effectively reduced well water TDS, hardness and chloride content
-
• Greatly lowered pipeline scaling and equipment corrosion risks
-
• Realized unified and stable water quality standards for all factories
-
• Eliminated production interruptions caused by unstable municipal water
-
• Replaced scattered decentralized treatment equipment to reduce costs
-
• Simplified daily operation and centralized maintenance management
-
• Avoided repeated equipment investment and resource waste
-
• Guaranteed continuous and stable industrial production
Note: The final applicability of product water shall be confirmed according to the individual factory’s specific process water standards.
8. Advantages of Centralized BWRO Treatment
Centralized brackish water desalination for industrial parks is far more cost-effective than single-factory decentralized systems:
-
• Unified real-time water quality monitoring and standard management
-
• Centralized dosing and consumable management to save costs
-
• Consistent system operation and maintenance standards
-
• Simplified staff training and daily equipment maintenance
-
• Flexible water distribution for different production areas
-
• Reserved system capacity for future park expansion
-
• Effectively reduces duplicated capital investment
For factories requiring higher-purity process water, secondary polishing equipment such as double-pass RO or EDI can be installed on-site.
9. FAQ
Q: Can BWRO treat groundwater affected by seawater intrusion?
A: Yes. It works stably for slightly salinized groundwater within BWRO design range. Heavily salinized water close to seawater TDS requires a professional SWRO system.
Q: Can the system handle seasonal TDS fluctuations?
A: It adapts to normal seasonal water quality fluctuations. We design the system based on annual maximum and minimum water quality data to ensure year-round stability.
Q: Does the equipment support 24-hour continuous operation?
A: Yes. The industrial-grade BWRO system supports fully automatic continuous operation. Matching water tanks and standby pumps are recommended for zero-interruption production scenarios.
Q: How is the system water recovery rate determined?
A: The recovery rate is scientifically calculated based on hardness, alkalinity, silica, sulfate and other scaling ions to avoid membrane scaling.
Q: Can the treated water be used for drinking?
A: Yes, with optional disinfection, pH adjustment and remineralization. Final drinking water safety must pass local official laboratory testing.
Q: Can BWRO eliminate pipeline corrosion completely?
A: It reduces salinity and chloride to lower corrosion risks. The final anti-corrosion effect is also related to water pH, pipeline material and distribution conditions.
10. Custom Project & Quotation
To obtain an accurate customized BWRO desalination solution and quotation for similar coastal industrial water projects, please provide the following information:
-
• Complete groundwater full water quality analysis report
-
• Seasonal maximum and minimum TDS and turbidity values
-
• Chloride, sulfate, alkalinity, hardness, silica, iron and manganese content
-
• Raw water pH, temperature and daily water fluctuation
-
• Required product water quality standard and water usage
-
• Peak hourly water demand and total daily water consumption
-
• Local power supply voltage, frequency and operating hours
-
• On-site installation space conditions and delivery requirements
Zhongnuo provides one-stop customized BWRO desalination solutions for African coastal industrial parks, including professional process design, factory pre-testing, on-site installation guidance and long-term technical support.
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