QILEE Group has unveiled its latest innovation, the QL-SWTP 900K Series Integrated Surface Water Treatment System — a comprehensive treatment unit capable of transforming heavily turbid and chemically diverse river or lake water directly into high-grade industrial process water or potable municipal supplies.
With a total daily treatment capacity reaching 900,000 cubic meters, the QL-SWTP 900K merges pre-treatment, gravity clarification, and advanced nanofiltration (NF) within a single, automated platform. This system is built to serve large-scale municipal drinking water projects, water treatment facilities for expansive industrial parks, river basin water quality improvement initiatives, and pre-treatment stages for brackish water desalination in saline-alkaline regions.
Technical Architecture and Performance
The QL-SWTP 900K runs in a continuous, fully autonomous mode across three separate processing stages:
- Zone 1: Pre-treatment: This first stage employs dual-powered rotary drum screens delivering filtration precision from 20 to 100 micrometers. An integrated intelligent PAC/PAM proportional dosing system supports this zone to fine-tune chemical usage.
- Zone 2: Gravity Clarification: Built for exceptionally low operational expenses, this zone relies on a zero-energy gravity-flow configuration that consumes no electricity. Each module handles 50,000 cubic meters per hour, eliminating over 95 percent of suspended solids (SS) through natural settling.
- Zone 3B: Advanced Treatment: The concluding stage incorporates a large-scale nanofiltration (NF) skid with a per-unit capacity of 300,000 cubic meters per day. This step accomplishes the efficient removal of total organic carbon (TOC), color, and multivalent ions. The NF system ensures consistent, premium-quality water output regardless of seasonal variations in raw river water characteristics.
Production, Deployment, and Automation
During the research and design phase, QILEE engineers refine the system’s sedimentation units through Computational Fluid Dynamics (CFD) simulations. Every skid-mounted component is standardized, fabricated, and coated with specialized anti-corrosion finishes at QILEE’s digital factory. Prior to delivery, the equipment undergoes thorough Factory Acceptance Testing (FAT) to guarantee immediate plug-and-readiness at the installation site.
The modular, skid-mounted architecture enables swift deployment, cutting on-site installation time by roughly 60 percent compared to conventional concrete-based water treatment plants. In operation, the system supports fully automated PLC/DCS remote control and gives operators access to real-time water quality data via mobile devices.
Target Markets and Field Validation
The QL-SWTP 900K Series is primarily aimed at municipal water utility organizations, EPC contractors, large-scale steel and chemical manufacturing facilities, and environmental engineering firms. Key geographic targets encompass major coastal industrial zones, Southeast Asia, Central Asia, and the Middle East — notably large EPC infrastructure endeavors in Saudi Arabia and the United Arab Emirates (UAE).
The automated, energy-efficient design has already proven itself in real-world conditions. A project manager overseeing an overseas municipal water supply initiative commented: “QILEE’s gravity system has performed exceptionally well in remote areas. It not only saved significant electricity costs but also solved the challenge of limited local maintenance personnel through its fully automated design.”
About QILEE Group
QILEE Group stands as a worldwide frontrunner in integrated water treatment solutions, drawing on more than two decades of expertise in industrial and municipal water management. The company focuses on high-efficiency sedimentation technologies, membrane separation systems, and containerized mobile water treatment units. Serving clients across more than 50 countries and regions, QILEE is dedicated to tackling global water scarcity through forward-thinking technologies.
Inquiries can be sent on WhatsApp at +86 13636655908.
Media Contact
Contact Person: Tina
Company Name: QILEE Environmental Protection Equipment Co., Ltd.
Email: tina@qileegroup.com
Phone: +86 13370035529
Website: qileegroup.com
Country: China




