WATER TREATMENT
Strong R&D and Production Capabilities
Explore Eco-Tech excels in the water treatment sector, focusing on two primary areas: Membrane Water Treatment and Submerged Water Treatment. Leveraging our robust investment capabilities and advanced technologies, we are committed to promoting the efficient utilization of water resources and pollution prevention.In our pursuit of sustainable development, we view innovation and environmental management as the core responsibilities for our company’s growth. We actively respond to the United Nations Sustainable Development Goals (SDGs), integrating these objectives into our business practices and operations. Our research and development centers are established in Beijing and Shanghai, while exclusive cooperative production bases in Xi’an and Jiangsu ensure the successful implementation and promotion of our technologies and solutions across various regions.
Membrane Water Treatment:
As a leading provider of water purification technology, we offer comprehensive and efficient solutions for residential, industrial, and commercial water treatment. Our membrane systems are fully certified, including NSF certification, ensuring compliance with the highest safety and quality standards. From membranes to pressure tanks and water pumps, we manufacture all key components of our integrated water treatment systems in-house. This approach allows us to maintain strict control over both cost and quality, ensuring that our solutions meet the specific needs of various industries while delivering sustainable, safe, and high-performance water manageme
Submerged Water Treatment:
Our Submerged Water Plant solutions promote the development of distributed submerged water plants using energy-efficient, cutting-edge treatment technologies. The “High-Quality Submerged Regeneration Water System” has been successfully applied in a variety of settings, including urban renewal projects, lake and river restoration, new urban development areas, and more. These systems not only focus on water treatment but also play a pivotal role in broader environmental management efforts.
With the strong backing of a multidisciplinary research team, including experts from Tsinghua University and a German collaborative technology team, we address complex environmental challenges through comprehensive solutions. Our approach extends beyond water management to encompass holistic environmental restoration, ensuring sustainable urban and ecological development for the long term.
APPLICATION
Recent Case Studies
Coal Chemical Industry Park Project in Inner Mongolia
This project features one of the most comprehensive and intricate process routes, accomplished within a tight project timeline.
- Project Phases: Two phases, spanning three bidding sections and involving five engineering companies.
- Timeline: Design initiated in March 2017, water inflow commissioning completed by December 2018, with trial operations beginning in March 2019.
Design Overview:
- Recoverable product water: 24.09 million tons/year (including steam condensate), with zero wastewater discharge into the Yellow River.
- High-quality salt production: A low mixed-salt rate design ensures minimal hazardous waste.
- Sodium chloride: 39,900 tons/year
- Sodium sulfate: 43,200 tons/year
- Mixed salts: 14,600 tons/year, disposed of in hazardous waste landfills from the coal-to-liquids project. The mixed-salt rate remains ≤15%.
Operational Performance:
The treated water meets high-quality standards and is reused, reducing the reliance on fresh water.
Nanofiltration technology:
- Mine water is treated with continuous nanofiltration, and coal chemical wastewater undergoes multi-stage nanofiltration.
- The designed salt concentration for nanofiltration is approximately 20,000 mg/L.
- In actual operations, the nanofiltration system achieves a sulfate retention rate of ≥98%.
Sodium sulfate quality: Exceeds Class I top-grade requirements of the “Industrial Anhydrous Sodium Sulfate” standard, with a purity of approximately 99.3%.
Sodium chloride quality: Surpasses first-class standards of the “Industrial Salt Standard,” with a purity of around 99.2%.
Zero Liquid Discharge (ZLD) Project for a Chemical Plant in Xinjiang
This project is a cutting-edge solution for achieving zero liquid discharge (ZLD) in a chemical plant, ensuring environmental sustainability and resource efficiency.
Project Overview:
- Objective: To achieve ZLD for a large chemical plant in Xinjiang, ensuring that no wastewater is discharged into the environment.
- Scope: Comprehensive treatment of industrial wastewater, including high-salinity wastewater generated during chemical production. We provided five solutions for the client to choose from, ensuring optimal treatment efficiency and economic benefits.
Design Features:
- Total Recoverable Water: The treated wastewater is largely reused within the plant, reducing the consumption of fresh water and minimizing environmental impact.
- Zero Liquid Discharge: Through a multi-stage treatment process, all wastewater is treated, evaporated, and crystallized, ensuring no liquid waste is discharged.
- Salt Recovery: High-quality salt is produced as a byproduct of the ZLD process, which can be reused or safely disposed of.
- The recovered sodium chloride and other salts are of high purity, meeting industrial standards.
Technological Innovations:
- Advanced Filtration Technology: A combination of reverse osmosis (RO) and nanofiltration (NF) membranes is used to remove contaminants and concentrate the brine.
- Evaporation and Crystallization Equipment: The remaining wastewater undergoes evaporation to extract water vapor, followed by crystallization to recover solid salts.
- Energy Efficiency: The system integrates energy recovery technologies to minimize energy consumption during the ZLD process.
Environmental and Operational Benefits:
- Zero Environmental Discharge: The project ensures that no wastewater enters local rivers or lakes, protecting Xinjiang’s fragile ecosystem.
- Resource Recovery: The recovered water and salts are reused in chemical production, improving overall efficiency.
- Regulatory Compliance: The project meets strict environmental regulations, demonstrating a commitment to sustainable operations and green industrial development.
Nanofiltration Water Treatment Project in Northwest China
This project focuses on applying advanced nanofiltration (NF) technology to address water shortages and water quality issues in a municipal water treatment plant in Northwest China.
Project Overview:
- Objective: Improve drinking water quality by removing salts and organic compounds while retaining essential minerals through nanofiltration technology.
- Scope: Comprehensive design and installation of the nanofiltration system to provide efficient hard water treatment, ensuring compliance with local drinking water standards.
Design Features:
- Total Treated Water: The system processes millions of cubic meters of water annually, ensuring a continuous supply of clean and safe drinking water.
- Nanofiltration Technology: The NF system is specifically designed to selectively filter out unwanted salts, heavy metals, and organic compounds, while retaining beneficial minerals for health. This improves water quality with low energy consumption.
- Energy-Efficient Operation: The system operates with high stability, maintaining an operating pressure of around 5 bar. Energy consumption is very low while ensuring excellent water quality. The pressure drop between stages is approximately 1 bar, indicating a well-designed and efficiently operated system.
- Extended Cleaning Cycle: The chemical cleaning cycle exceeds two months, further demonstrating the system’s efficiency and stability.
