1 / 2
OEM High-Ratio Water Reuse Equipment from China Suppliers - Multi-Stage Process for Industrial Wastewater Treatment Factory Supplier, Manufacturers
Product Description
Process Flow and Principle
After pretreatment and UF, the raw water enters the primary RO unit (brackish water membrane). A portion of the permeate is directly reused, while the primary RO concentrate serves as the feed water for the SWRO unit. The SWRO membrane withstands higher operating pressures and achieves over 99% rejection of both monovalent and divalent ions, further concentrating the salts. The SWRO concentrate then enters the STRO membrane unit. STRO utilizes open-channel flow paths and high-pressure-resistant membrane elements, with an operating pressure capable of reaching 9 MPa or higher, maintaining stable flux even when treating high-salinity brine.
Through this multi-stage concentration process, the total system recovery rate can be increased to over 85% (depending on raw water quality), significantly reducing the final concentrate volume. Each membrane stage independently controls pressure and recovery. Optional inter-stage energy recovery devices can be added to reduce system operating energy consumption while further increasing the volume of reused water.
Equipment Structure and Core Components
-
⚙️
The equipment consists of pretreatment filters, a UF (Ultrafiltration) unit, primary RO membrane modules, SWRO high-pressure membrane modules, STRO high-pressure membrane modules, inter-stage booster pumps, and an optional energy recovery device.
-
🛡️
Equipped with wide-channel spiral-wound STRO membranes that are fouling-resistant and amenable to chemical cleaning. Includes online conductivity meters, flow meters, and pressure sensors for fault warnings.
Key Performance Indicators and Applicable Standards
✔
Product water quality targets are based on national industry standards for reclaimed water reuse quality and specific customer requirements for downstream process integration.
✔
A targeted indicator plan and process scheme are provided during the design phase, using guaranteed performance values as acceptance criteria for the equipment.
Application Fields
The equipment is primarily used in desulfurization wastewater, circulating cooling system blowdown, and high-salinity process wastewater from industries such as electric power, petrochemicals, and coal chemicals. It is also suitable for centralized wastewater treatment plants in industrial parks to meet near-zero discharge policy requirements and effectively concentrate leachate for downstream evaporation systems.
Other Products
Modular Containerized Seawater Desalination
High-Salinity Wastewater ZLD System
OEM Precision Manufacturing
ODM Full Value Chain Innovation
Send Inquiry
Frequently Asked Questions
1. What is the typical water recovery rate of this equipment?
Through our multi-stage membrane concentration process (UF+RO+SWRO+STRO), the total system recovery rate can reach over 85%, depending on the specific raw water quality.
2. Which industries can benefit from this water reuse system?
It is ideal for electric power, petrochemicals, coal chemicals, and industrial parks looking to reduce wastewater discharge volume or achieve near-zero discharge (ZLD).
3. How does the system handle high-salinity brine?
We utilize high-pressure SWRO and STRO membranes. The STRO modules are specifically designed with open channels to handle high-salinity feed water up to 9 MPa or higher while resisting fouling.
4. Can the system be customized for specific water standards?
Yes, we design the process based on your water quality report and the required end-use standards, ensuring the equipment meets your specific technical and environmental criteria.
5. Is energy recovery available for this equipment?
Yes, optional inter-stage energy recovery devices can be integrated to significantly reduce operating energy consumption during the high-pressure concentration stages.
6. What core components are included in the modular system?
The system includes pretreatment filters, UF units, RO/SWRO/STRO membrane modules, booster pumps, and a centralized control cabinet with online monitoring sensors.
