QILEE Group has officially launched its QL-SWTP 900K Series Integrated Surface Water Treatment System, a full-process facility that directly transforms heavily turbid and chemically complex river or lake water into high-grade industrial process water or potable municipal water.
With a total daily treatment capacity of 900,000 cubic meters, the QL-SWTP 900K unifies pre-treatment, gravity clarification, and advanced nanofiltration (NF) into a single, automated platform. This system is built to support large-scale municipal water supply initiatives, water treatment plants for major industrial parks, river basin water quality remediation projects, and pre-treatment operations for brackish water desalination in saline-alkali areas.
Technical Architecture and Performance
The QL-SWTP 900K functions in a continuous, fully automated process across three distinct treatment zones:
- Zone 1: Pre-treatment: This first stage employs dual-powered rotary drum screens to deliver filtration accuracy between 20 and 100 micrometers. An integrated, intelligent PAC/PAM proportional dosing system supports optimized chemical dosing.
- Zone 2: Gravity Clarification: Designed for minimal operating expenses, this zone uses a zero-energy gravity-flow configuration that consumes no electricity. Each module processes 50,000 cubic meters per hour, eliminating over 95 percent of suspended solids (SS) through natural settling.
- Zone 3B: Advanced Treatment: The final stage incorporates a large-scale nanofiltration (NF) skid with a single-unit capacity of 300,000 cubic meters per day. This phase ensures efficient removal of total organic carbon (TOC), color, and multivalent ions. The NF technology delivers stable, high-quality water output regardless of seasonal variations in raw river water conditions.
Production, Deployment, and Automation
During the research and design phase, QILEE engineers optimize the system’s sedimentation units using Computational Fluid Dynamics (CFD) simulations. All skid-mounted components are standardized, manufactured, and treated with specialized anti-corrosion coatings 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 project site.
The modular, skid-mounted design enables rapid deployment, cutting on-site installation time by approximately 60 percent compared to traditional concrete water treatment plants. In operation, the system supports fully automated PLC/DCS remote control and provides operators with real-time water quality monitoring through 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 plants, and environmental engineering firms. Key geographic markets include major coastal industrial zones, Southeast Asia, Central Asia, and the Middle East, with a focus on large EPC infrastructure projects in Saudi Arabia and the United Arab Emirates (UAE).
The automated, energy-efficient design has already proven its effectiveness in real-world conditions. A project manager overseeing an overseas municipal water supply project 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 global frontrunner in integrated water treatment solutions, boasting over 20 years of experience 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



