Questions and answers about ion exchange water treatment equipment

1. What is the water consumption of the ion exchange water purifier?

There is no waste water discharged from the ion exchanger during the entire water production process, but water consumption is required during regeneration. Generally, the water consumption can be counted as 5-10% of the water production.

2. What is the acid and alkali consumption of the ion exchange water purifier, and how long can each regeneration be used?

The acid and alkali consumption of the ion exchanger is related to the performance of the ion exchange resin, but the common cation and anion exchange resin used in the cation and anion exchanger on the market requires 30% hydrochloric acid 250g per liter of cation resin, and 99% caustic soda per liter of anion resin 100g
How long does it take to regenerate the ion exchange resin each time it is used? It is mainly related to the water quality required by the end point of the water production (ie the water quality standard), the raw water quality (ie TDS) and the exchange capacity of the resin (ie the amount of water per liter of resin exchanged The ability of salt content), so different production environments and different quality ion exchange resins and different water have different regeneration cycles. Practice has shown that when the conductivity of raw water is less than 200μS/cm and the production water is less than 15μS/cm, the double bed composed of 75 liters of positive resin + 75 liters of negative resin can produce water 40-50M3.

3. In general, what is the water quality of the ion exchanger outlet water?

The water quality of the ion exchanger system is mainly based on the raw water quality. The water quality of the double-bed ion exchanger is 1-15μS/cm, while the water quality of the single-stage mixed bed is 1-0.1μS/cm, and the double-stage mixed bed The product water quality is below 0.1μS/cm

4. Why is the effluent quality of the mixed bed better, and what are the requirements for the inlet water?

Mixed bed is the abbreviation of mixed ion exchange bed, which means that the cation and anion ion exchange resins are placed in the same exchange library, and the layers are separated during regeneration, and the acid and alkali are respectively fed into the regeneration. Mix them evenly during operation, and put them into operation after being flushed.
Since the cation and anion resins are uniformly mixed with each other in the mixed bed, the cation and anion exchange reactions are carried out almost at the same time, or equivalent to many stages of cation and anion beds in series and single-stage multiple beds (cation bed, anion bed) Compared with the mixed-bed desalination process, the effluent quality of the mixed-bed desalination process is better, the operation is stable, and the exchange end point is obvious.
Generally, the inlet water quality of the mixed bed requires a first-level desalination treatment, and the general conductivity is below 10μS/cm.

5. What is the difference between automatic ion exchanger and manual ion exchanger?

The automatic ion exchanger is mainly controlled by electric, pneumatic or hydraulic push valve action to switch the valve. The automatic ion exchanger can control the quality of the produced water by itself after setting the regeneration and operation program for the first time. If the water is qualified, The water produced is unqualified for flushing or regeneration, with low labor intensity and simple operation.

6. What are the commonly used automatic ion exchangers?

Commonly used automatic ion exchangers are mainly divided into two categories. One is controlled by automatic multi-way valves. The representative ones are the series of automatic multi-way valves 172, 180, 182, 255, 263, etc. of the American OSMONICS company and the 9600 of the American FLICK company. Models such as, 5600 and Italian series automatic multi-way valves mainly achieve program control through the opening and closing of the time axis or flow control valve. Its performance is stable, but the general program is relatively fixed.
The other is an automatic ion exchanger controlled by PLC+ pneumatic or electric valves. This system control is mostly used for medium-sized and above water treatment and desalination projects. The control steps and processes can be set according to needs. Can better meet the needs of specific processes. Jiadi Water Treatment can provide customers with the above automatic control ion exchange system.

C100E ion exchange resin