Xi'an DIEN Water Treatment Builds Ultrapure Water System for China Aerospace | High-precision Water Quality Supports Aerospace R&D and Production
In the fields of aerospace precision manufacturing, laboratory testing and special technological processes, ultrapure water is the key foundation to ensure product accuracy, reliable experimental data and equipment safety. As a benchmark enterprise for high-end water treatment solutions in Northwest China, Xi'an DIEN Water Treatment Equipment Co., Ltd. has successfully completed an ultrapure water system project for a scientific research and production base of China Aerospace with strict technical standards, full-process customized services and stable delivery capability. Adopting high-precision water quality of 18.2MΩ·cm level, it meets the extreme requirements of aerospace-grade water with zero impurities, zero pollution and zero fluctuation, making it a model case of water treatment engineering in the aerospace industry.
I. Project Overview
This project is fully undertaken by Xi'an DIEN Water Treatment with integrated services including survey & design, equipment manufacturing, installation & commissioning, and operation & maintenance trusteeship, serving the scientific research and production base of China Aerospace. The core is the preparation and stable water supply system of aerospace-grade ultrapure water. In view of the characteristics of complex raw water quality, extremely high water use standards and stringent operational stability requirements at the base, the full-process technology of Double-stage RO + EDI + Polishing Treatment is adopted to realize fully automatic, uninterrupted and high-purity water supply, fully supporting the water demand of key links such as aerospace precision processing, material experiments and clean cleaning. The project passed acceptance at one time and has been operating stably for a long time, winning high recognition from aerospace institutions.
Xi'an DIEN Water Treatment Builds Ultrapure Water System for China Aerospace
II. Raw Water Quality Problems
According to on-site sampling and authoritative detection & analysis by Xi'an DIEN technical team, the raw water at the base has several core problems restricting high-precision water use:
High content of hardness and scaling ions: Excessive scaling substances such as calcium, magnesium and silicon easily cause blockage and loss of precision pipelines, valves and instruments.
Trace ions and heavy metal residues: Ions such as sodium, potassium, iron and manganese as well as trace heavy metals exist, affecting material performance and accuracy of experimental data.
Organics and particulate matter: Excessive colloids, suspended solids and TOC (Total Organic Carbon) fail to meet the sanitary requirements of aerospace clean production.
Insufficient water quality fluctuation and stability: Changes in seasons and water sources lead to fluctuations in inlet water indicators, making conventional equipment unable to maintain stable standard compliance continuously.
The above problems directly affect the consistency of aerospace product quality, experimental reliability and service life of equipment, which must be completely solved by adopting aerospace-grade ultrapure water solutions.
III. Customer Requirements & Treatment Targets
Combined with the extremely high standards of China Aerospace for scientific research and production water, the core requirements and treatment targets of the project are defined as follows:
Effluent meets aerospace-grade ultrapure water standard: Resistivity ≥18.2MΩ·cm@25℃, TOC≤5ppb, with bacteria, particles and heavy metals close to zero.
The system operates continuously and stably 7×24 hours without shutdown or water quality fluctuation, ensuring uninterrupted scientific research and production.
Full-process intelligent control with online monitoring, automatic early warning and unattended operation to reduce operation and maintenance risks.
Equipment materials, pipelines and processes meet the requirements of cleanliness, anti-corrosion and no precipitation, complying with aerospace production environment specifications.
Energy-saving and low consumption, environmentally friendly and waste-free, with controllable operation and maintenance costs, suitable for long-term high-standard use.
Treatment Target: Effluent indicators are continuously better than GB/T 6682 Grade I Water and ASTM Type 1 standard, fully meeting the compliance requirements of aerospace R&D and production.
IV. Xi'an DIEN Customized Solution
Aiming at the pain points of aerospace-grade water use, Xi'an DIEN adopts a closed-loop process of multi-stage purification + deep desalination + intelligent precision treatment to customize a high-reliability ultrapure water system:
Enhanced Pretreatment Unit: Multi-media filtration + activated carbon adsorption + softening + precision security filtration, efficiently removing suspended solids, residual chlorine, organics and hardness ions to protect core membrane elements.
Double-stage Reverse Osmosis (RO) Unit (Click for Equipment Details): Two-stage RO series connection with desalination rate ≥99.8%, deeply removing inorganic salts, bacteria, viruses and macromolecular organics to provide stable pure water for EDI.
EDI Electrodeionization Unit: Electric field driven deep desalination without chemical regeneration, continuously producing high-purity water and raising resistivity above 16MΩ·cm.
Polishing Precision Treatment Unit: Polishing mixed bed + terminal sterile filtration to ensure effluent stably reaches the ultrapure standard of 18.2MΩ·cm.
Intelligent Industrial Control System: PLC + touch screen control, online resistivity / TOC / turbidity monitoring, automatic backwashing, low-pressure protection, fault alarm and traceable data.
Full-process Compliant Delivery: Clean construction, material verification, water pressure test, water quality detection, operation training and after-sales maintenance, meeting the requirements of the aerospace system in the whole chain.
Xi'an DIEN Water Treatment Builds Ultrapure Water System for China Aerospace
V. Project Treatment Effect
After project operation, continuous monitoring and third-party testing show all indicators reach 100% standard compliance and are better than design values:
Stable standard ultrapure water: Resistivity stably ≥18.2MΩ·cm, TOC≤5ppb, and all particles, microorganisms and heavy metals meet stringent aerospace requirements.
Zero operation fluctuation: 7×24 hours continuous water supply with stable water production and no attenuation under load changes.
Clean and pollution-free: The whole system is closed, anti-corrosive and non-precipitating, eliminating secondary pollution and adapting to aerospace clean environment.
Intelligent & Worry-free: Fully automatic operation with online early warning and extremely simple maintenance, greatly reducing labor and fault risks.
Cost Reduction & Efficiency Improvement: Low energy consumption, no chemical regeneration, extended membrane service life, and significant optimization of comprehensive use cost.
VI. Customer Feedback
The person in charge of China Aerospace spoke highly of Xi'an DIEN Water Treatment: The project features professional technical scheme, standardized construction, stable water quality and reliable operation, fully meeting the extreme requirements of aerospace scientific research and production for ultrapure water. The DIEN team responds quickly with strict standards and thoughtful services, safeguarding aerospace water use safety with military-grade quality. A long-term strategic cooperation has been established, and China Aerospace gives priority to Xi'an DIEN for subsequent water treatment upgrading projects.
Xi'an DIEN Water Treatment has long been engaged in ultrapure water, industrial pure water, reverse osmosis water purification, Water Softener Filter, Wastewater treatment, reclaimed water reuse and other fields, focusing on providing customized, high-standard and long-life water treatment solutions for high-demand customers such as aerospace, military industry, electronics, pharmaceutical, precision manufacturing and laboratories. With core technology, strict quality control, full-chain services and local rapid response, it has become a trustworthy brand in the field of high-end water treatment in Northwest China. If your enterprise has demands for ultrapure water, high-precision water quality requirements, stable water supply difficulties or environmental compliance pressure, welcome to contact Xi'an DIEN Water Treatment to obtain free water quality testing, customized solutions and cost consultation, and escort high-end manufacturing and scientific research production with professional technology.
