EDI System Electrodeionization

EDI equipment, as a green and innovative device that integrates electrodeionization and ion exchange technologies, can continuously produce high-purity ultrapure water without the need for acid-base chemical regeneration. It completely solves the pain points of traditional water treatment processes, such as water production interruption, pollution discharge, and high costs, and has become the core preferred choice for modern industrial ultrapure water systems.

EDI system electrodeionization is a continuous electro-deionization equipment. It actually combines the characteristics of ion exchange resin and ion selective permeable membrane. In other word, it can deeply remove ionic impurities in water and produce high-purity water.

Our factory accepts customization of different specifications, from 250 LPH to 100 TLPH. Regarding the power sector, we can also customize solar container equipment if needed.

How do EDI system electrodeionization work?

Below, I will explain the working principle of edi system.

It combines ion exchange with electric drive. Under the traction of electric field force, anions and cations in water migrate to the concentrated water chamber through selective ion exchange membranes respectively, continuously removing almost all ionic impurities in the water. Thereby preparing high-purity ultrapure water efficiently and stably without the need for large amounts of acid and alkali regeneration.

Water purification can be mainly divided into four steps.

1.Pretreatment

Firstly, pretreatment is the first step in the workflow of EDI system. It’s aim is to remove impurities such as suspended solids, dissolved oxygen, organic matter and bacteria in raw water.

2.Reverse Osmosis (RO) System Treatment

Secondly, the reverse osmosis system uses the selective permeability of the semipermeable membrane to remove dissolved solids, inorganic salts and microorganisms in the water to produce high-purity desalted water.

3.EDI  System Electrodeionization Treatment

Thirdly, the EDI system electrodeionizationcombines the principles of electrochemical reaction and ion exchange to achieve deep removal of ions.

4.Subsequent treatment and storage

Finally, to prevent secondary contamination of pure water during storage and distribution, UV ultraviolet sterilizers are usually installed. After the above treatment, pure water enters the water storage tank or pure water tank for storage. And We will distribute pure water to various water use points as needed.

EDI Electrodeionization Systems process

Advantages of  EDI system electrodeionization

1.Technology integration

EDI system combines electrodialysis and ion exchange technology, drives ion migration through electric fields. It uses ion exchange resins for ion removal and regeneration, achieving an efficient and continuous desalination process.

2.Modular design

EDI system usually adopts a modular structure, which is easy to install, debug and maintain. Because of this design, it allows the equipment to be flexibly configured according to actual needs. Thus, meet different treatment scales and water quality requirements.

3.High effluent quality

EDI electrodeionization systems can produce high-quality ultrapure water with stable water quality and resistivity of more than 15MΩ·CM. So,it can meet the high-purity water needs of electronics, medicine, chemical industry, etc.

4.Energy saving and environmental protection

Compared with traditional ion exchange equipment, EDI system does not need to use acid and alkali for resin regeneration. Therefore, it is able to reduce acid and alkali consumption and wastewater discharge, and reduce environmental pollution.

5.Stable operation

Because EDI system is not affected by external conditions such as time, pressure and temperature during operation, and the effluent quality is stable and reliable. There will be no fluctuation or decline in water quality.

OUR FACTORY WORKSHOPS

Guangdong Xinyuanyuan Environmental Protection Technology Co., Ltd., founded in 2018, is an integrated environmental enterprise specializing in scientific research, production and sales, boasting a professional team of 20 to 99 members and a well-equipped facility spanning approximately 1,800 square meters at Panyu District, Guangzhou, China. Strategically situated in the core of the Pearl River Delta, the company leverages its prime location to support efficient operations, expand business across agriculture, chemical engineering, medical care and food processing industries (covering environmental equipment R&D, water/sludge treatment and ecological restoration), and facilitate seamless import-export operations for global clients.

water treatment equipment workshop
water treatment equipment workshop
water treatment equipment workshop
water treatment equipment workshop
water treatment equipment workshop
water treatment equipment workshop

Frequently Asked Questions

We customize equipment parameters and treatment solutions based on your water need (such as water quality, voltage, process, etc.), and all products comply with international universal standards (including ISO, CE, etc.) with complete certification documents. From equipment selection and installation guidance to post-sales maintenance, our professional technical team offers full-cycle support. Leveraging our global cooperative logistics network, we ensure fast delivery with an after-sales response time of no more than 24 hours, fully resolving any concerns you may have during overseas procurement and usage.

-We usually quote within 24 hours after we get your inquiry
(Except weekend and holidays).
-If you are very urgent to get the price, please call us
or contact us in other ways so that we can offer you a quote.
-It depends on the order quantity and voltage of machine you need.
-Usually we can ship within 7-15 days for small quantity,
and about 30 days for large quantity.
Special voltage we may need about 40 days for production.
-This machine is very easy for install. The machine you received 
is assembled. You will only need to follow steps on our English 
instruction and video. If big capacity of machines, we can arrange 
engineer to help installation.
-T/T,Western Union,MoneyGram and L/C at sight. This is negotiable.
After we confirmed order, I will send you contract sales with our 
company bank information. You can transfer money to our company 
bank account by T/T. Or you can choose to place order online.
-Machine will be packed by standard export plywood case.
It is suitable for long time shipment by sea/air/train.
-It could be shipped by sea,by air, by train.
Please confirm with us before placing orders.
-We provide 1 year warranty. It means when there is any parts 
broken in one year, we will send spare parts to you for free.
-1. We keep good quality and competitive price to ensure our customers benefit
-2. We respect every customer as our friend and we sincerely do business 
and make friends with them,no matter where they come from.

Seawater Desalination System, Blog

28 Oct 2025

Containerized solar seawater desalination machine

Containerized solar seawater desalination machine is independent of fossil fuels, reducing carbon emissions. It seamlessly combines the clean properties of solar energy with the portability of containers. Thus, provide a mobile, low-cost, zero-emission water treatment solution for islands, remote areas, and emergency scenarios, addressing water scarcity.
reverse osmosis desalination machine

Blog

29 Oct 2025

How does a reverse osmosis desalination machine work?

This type of equipment uses reverse osmosis technology to force water molecules in the seawater to pass through the reverse osmosis membrane in the opposite direction to enter the freshwater side, while impurities such as salt ions, heavy metals, and microorganisms are retained by the membrane, ultimately producing freshwater that meets standards.
water bottle filling machine

Water filling, Blog

30 Sep 2025

What is a water bottle filling machine?

This integrated system automates the entire process from raw water treatment to labeling, precisely matching the production needs of mainstream bottle sizes from 500ml to 2L, providing a one-stop, ready-to-use solution for bottled water production.
salt water pretreatment system

Blog, Seawater Desalination System

26 Feb 2026

How to run ro salt water desalination plant efficiently

This solution is specifically tailored for salt water desalination plant using reverse osmosis, addressing key pain points such as high energy consumption, severe membrane fouling, high operation and maintenance costs, and insufficient water quality adaptability. Combined with the actual needs of industrial production water, it enables efficient, stable, and low-cost operation of reverse osmosis seawater desalination plants, providing factories with a sustainable supply of high-quality freshwater.

Blog, Reverse Osmosis System

30 Oct 2025

What is the significance of a reverse osmosis plant?

Reverse osmosis plant will break the vicious cycle of "resource scarcity - limited development" through technological innovation and industrial collaboration. By leveraging a three-dimensional approach of "increasing water supply (seawater desalination) + reducing wastewater (wastewater reuse) + increasing efficiency (intelligent operation)," they will provide a solid water resource guarantee for global sustainable development.
pretreatment reverse osmosis maintenance

Reverse Osmosis System, Blog

19 Jan 2026

3 Key Processes for Reverse Osmosis Maintenance Efficiently

Scientific maintenance and management are crucial for extending equipment lifespan and reducing operating costs. Conversely, improper reverse osmosis maintenance can easily lead to problems such as membrane fouling and decreased water production efficiency. This article will summarize the key maintenance points of ro systems, providing a reference for practical work.
滚动至顶部

Please fill in the information, and we will reply to you within 24 hours.

Let's have a chat