Version 1: Formal Brochure & Business Proposal (Formal & Detailed, for Tender, Client Negotiation & Official Cooperation)
Two-Stage Disc Tube Reverse Osmosis (DTRO) Wastewater Treatment System
1. Company Overview
We are a professional manufacturer specializing in the R&D, production, customization and turnkey delivery of high-end wastewater treatment equipment. Focusing on two-stage DTRO wastewater treatment systems for years, we have accumulated rich engineering experience in treating high-salinity wastewater, landfill leachate, industrial concentrated wastewater and complex polluted water. Our products are widely applicable to municipal environmental governance, industrial parks, waste disposal sites, food & beverage, textile, chemical and other industries across Southeast Asia. We provide integrated solutions covering equipment supply, on-site installation, commissioning, technical training and long-term after-sales maintenance, fully adapting to the diverse water quality characteristics and local operation requirements of Southeast Asian countries.
2. Core Technology & Working Principle
DTRO (Disc Tube Reverse Osmosis) is an advanced anti-fouling reverse osmosis membrane technology designed for harsh wastewater conditions, which overcomes the defects of easy blockage, severe fouling and short service life of conventional spiral-wound RO membranes. Our two-stage DTRO system adopts a two-series membrane separation process to achieve graded purification and deep treatment of wastewater:
- Pretreatment Unit: Raw wastewater firstly goes through pH adjustment, bag filtration, sand filtration and cartridge security filtration to remove large suspended solids, fibers and partial colloids, protecting the subsequent high-pressure pumps and membrane modules.
- First-Stage DTRO (Primary Purification & Concentration): The pretreated water is pressurized by high-pressure plunger pumps and delivered to the first-stage DTRO membrane stacks. Under high operating pressure (up to 120 bar), most pollutants including COD, ammonia nitrogen, heavy metals, total dissolved solids (TDS) and macromolecular organics are intercepted. The recovery rate of the first stage is stably controlled at 50%–60%. The produced permeate flows into the second-stage DTRO for deep purification, while the concentrated liquid is collected for subsequent volume reduction or further treatment.
- Second-Stage DTRO (Deep Polishing): The permeate from the first stage is re-pressurized and treated by the second-stage DTRO unit to further remove residual salts and trace pollutants. The secondary concentrate is refluxed to the front-end pretreatment system for cyclic treatment to improve the overall water recovery rate. The final qualified permeate passes through the degassing tower and reaches discharge or reuse standards directly.
Different from traditional RO, DTRO adopts a unique disc-tube stacked structure with 2–4 mm wide open flow channels (6–10 times wider than conventional spiral-wound RO). The internal guide discs form strong turbulent flow on the membrane surface, which effectively eliminates concentration polarization, prevents sedimentation of suspended solids and colloids, and greatly enhances the anti-fouling capacity of the system.
3. Key Advantages of Two-Stage DTRO Equipment
3.1 Outstanding Adaptability to Complex Wastewater
- Tolerate high TDS (5,000–80,000 mg/L), high COD, high salinity and high suspended solids, perfectly suitable for landfill leachate, industrial concentrated brine, textile wastewater and mining wastewater prevalent in Southeast Asia.
- Strong shock resistance to fluctuating water quality and water volume, ensuring long-term stable operation under unstable feed water conditions.
3.2 Superior Treatment Performance
- Comprehensive removal efficiency: Over 95% removal rate for COD, ammonia nitrogen, heavy metals and salinity; the final effluent fully meets the wastewater discharge standards of Southeast Asian countries and can be reused for production water, site washing and irrigation.
- High overall water recovery rate, effectively reducing wastewater discharge volume and realizing wastewater minimization.
3.3 Low Operation & Maintenance Cost
- Equipped with high-efficiency energy recovery devices, which recycle pressure energy from concentrated liquid and cut energy consumption by 30%–40% compared with ordinary membrane systems.
- Wide flow channel design avoids frequent blockage; the system supports automatic online chemical cleaning (acid/alkali cleaning), with long membrane service life and low replacement frequency.
- Modular integrated structure, simple mechanical structure, low failure rate and easy daily maintenance.
3.4 Flexible & Intelligent Operation
- Fully automatic PLC control system, realizing unmanned continuous operation; equipped with overpressure, overload and leakage protection functions to ensure operational safety.
- Multiple installation modes: Containerized skid-mounted, fixed foundation and mobile types are optional. The containerized design requires no complex civil works, featuring rapid installation and commissioning (completed within 7 days after equipment arrival).
- Flexible capacity expansion: Membrane modules can be increased or decreased according to actual water volume demands to match phased project construction.
3.5 Localized Service for Southeast Asia
- We provide English operation manuals, on-site technical guidance and operator professional training.
- Spare parts inventory and after-sales service outlets are arranged in core Southeast Asian regions to respond to equipment maintenance and technical support demands rapidly.
4. Main Application Scenarios in Southeast Asia
- Municipal Solid Waste Landfill & Incineration Plants: Treatment of landfill leachate and incineration leachate, the most mature application of two-stage DTRO systems.
- Industrial Wastewater Treatment: Textile & garment wastewater, food processing wastewater, chemical wastewater, palm oil mill wastewater and mining wastewater.
- Zero Liquid Discharge (ZLD) & Water Reuse Projects: Deep concentration of RO concentrated water and industrial wastewater, realizing resource reuse and zero discharge.
- Rural & Remote Area Water Purification & Wastewater Treatment: Containerized mobile DTRO equipment for scattered small-scale wastewater treatment projects.
5. Our Strengths as a Manufacturer
- Independent production workshop and complete production lines, strict quality inspection from raw materials to finished products; core components adopt internationally renowned brands to guarantee equipment reliability.
- Support personalized customization: Adjust system parameters, skid size, material and configuration according to customer’s water quality report, site conditions and local emission standards.
- Rich overseas project experience: Our equipment has been exported to multiple Southeast Asian countries, with numerous stable operating projects and verifiable on-site cases.
- One-stop service: From scheme design, equipment manufacturing, shipping, on-site installation to after-sales warranty, we provide full-cycle support.
Version 2: Concise Version (For Email Promotion, Product Catalogue & On-Site Brief Introduction)
Two-Stage DTRO Wastewater Treatment System
Introduction
As a professional manufacturer based in China, we dedicate to manufacturing high-performance two-stage Disc Tube Reverse Osmosis (DTRO) wastewater treatment equipment, a state-of-the-art solution for high-concentration, high-salinity and heavily polluted wastewater. Tailored for the environmental treatment demands of Southeast Asia, our two-stage DTRO system integrates primary concentration and deep purification via two sets of DTRO membrane units, delivering stable, efficient and cost-effective wastewater treatment performance.
