QILEE Group has unveiled the QL-SWTP 900K Series Integrated Surface Water Treatment System, a comprehensive facility engineered to directly transform heavily turbid and chemically diverse river or lake water into premium industrial process water or potable municipal water.
With an overall treatment capacity reaching 900,000 cubic meters daily, the QL-SWTP 900K merges pre-treatment, gravity clarification, and advanced nanofiltration (NF) into a singular, automated platform. This solution is designed to support large-scale municipal water supply initiatives, water treatment facilities for major industrial zones, river basin water quality remediation efforts, and pre-treatment operations for brackish water desalination projects in saline-alkali areas.
Technical Architecture and Performance
The QL-SWTP 900K functions in a continuous, fully automated manner across three distinct treatment zones:
- Zone 1: Pre-treatment: This first stage employs dual-powered rotary drum screens to attain filtration precision between 20 and 100 micrometers. An integrated intelligent PAC/PAM proportional dosing system assists in optimizing chemical usage.
- Zone 2: Gravity Clarification: Designed for minimal operating expenses, this zone uses a zero-energy gravity-flow approach and consumes no electricity. Each module handles 50,000 cubic meters per hour and eliminates more than 95 percent of suspended solids (SS) through natural settling.
- Zone 3B: Advanced Treatment: The concluding stage features a large-scale nanofiltration (NF) skid with a per-unit capacity of 300,000 cubic meters daily. This phase ensures efficient removal of total organic carbon (TOC), color, and multivalent ions. The NF technology guarantees consistent, high-quality water output regardless of seasonal changes in raw river water characteristics.
Production, Deployment, and Automation
During the research and design phase, QILEE engineers refine the system’s sedimentation units using Computational Fluid Dynamics (CFD) simulations. All skid-mounted components are standardized, fabricated, and coated with specialized anti-corrosion finishes at QILEE’s digital factory. Prior to shipment, the equipment undergoes complete Factory Acceptance Testing (FAT) to ensure immediate plug-and-play readiness at the installation site.
The modular, skid-mounted configuration enables swift deployment, cutting on-site installation time by roughly 60 percent compared to conventional concrete water treatment plants. In terms of operation, the system supports fully automated PLC/DCS remote control and allows operators to monitor water quality in real time via mobile devices.
Target Markets and Field Validation
The QL-SWTP 900K Series is primarily aimed at municipal water utility groups, EPC contractors, large steel and chemical manufacturing facilities, and environmental engineering firms. Geographic emphasis includes major coastal industrial zones, Southeast Asia, Central Asia, and the Middle East—especially large EPC infrastructure projects in Saudi Arabia and the United Arab Emirates (UAE).
The automated, energy-efficient design has already proven its effectiveness in the field. A project manager overseeing an overseas municipal water supply initiative remarked: “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 is a worldwide frontrunner in integrated water treatment solutions, bringing over 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 innovative 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



