Chempure Technologies Private Limited

A standard dual bed ion exchange unit consists of a strong acid cation resin that exchanges hydrogen for positively charged cations present. The second step is a strong basic anion resin that exchanges hydroxide for negatively charged anions present in the water stream. The hydrogen (H+) from the cation exchanger and hydroxide (OH-) from the anion exchanger create the HOH or deionized water to be reused in the process.

There are certain processes that generate an abundance of either a cation or an anion. If this occurs, a more selective weak acid cation can be used to exchange the multi-divalent heavy metals that are in abundance. This “pre-treating” of the heavy metals will assist in the exchanging of the mono-divalent cations. A weak basic anion before the strong basic anion can be implemented to assist in better deionizing the water fed back to the process.

The cation ion exchange resin is regenerated with an acid to exchange the hydrogen back onto the cation resin beads. The anion is regenerated with sodium hydroxide to exchange the hydroxide back onto the anion resin beads. The cost and wastewater associated with the regeneration of the ion exchange media is minimal.

 

We provide electro de-ionized (EDI) system that is manufactured and designed by combining two well-established water purification technologies electro dialysis and ion-exchange resin de-ionization. Considered as one of the revolutionary techniques, these EDI systems helps in removing the ions from water.

We offer commercial desalination reverse osmosis (RO) plants with the smallest reverse osmosis (RO) plants. These plants range from 10 LPH to 50000 LPH with highly reliable components and prompt after sales service

Applications:

• Houses
• Hotels
• Restaurants
• Apartments
• Hospitals
• Hemodialysis
• Package water manufacture
• Laboratories
• Pharma
• Ice manufacturing
• Soft Drinks

INSTRUMENTS

• Pressure switch
• Flow meters
• TDS meter
• Pressure gauges

LIMITING  CONDITIONS

• Feed TDS  2000 ppm
• Iron <0.1 ppm
• SDI < 5

STANDARD SCOPE & FEATURES

• 5M pre-filter
• PP cartridge Housing
• TFC membranes
• PVC membrane housing
• SS High Pressure pump
• High/Low pressure piping

Our water softeners ion exchange technology removes calcium, magnesium and limited iron from water for residential, commercial, and industrial uses. These systems have a proven excellence in performance. Water softeners are sized to fit your needs for soft water within your budget. All softeners are shipped directly from the factory to your home or business.  

The Benefits

Water Softeners will allow you to use less soap and detergent, saving the environment and saving you money.  In addition,  Softeners prevents the build-up of harmful mineral scale, adding years of service life to pipes, appliances and hot water heaters, thus paying for itself in the short and long term.

The Process

The heart of a water softeners is a mineral tank. It's filled with small polystyrene beads, also known as resin or zeolite. The beads carry a negative charge.

 

Calcium and magnesium in water both carry positive charges. This means that these minerals will cling to the beads as the hard water passes through the mineral tank. Sodium ions also have positive charges, albeit not as strong as the charge on the calcium and magnesium. When a very strong brine solution is flushed through a tank that has beads already saturated with calcium and magnesium, the sheer volume of the sodium ions is enough to drive the calcium and magnesium ions off the beads. Water softeners have a separate brine tank that uses common salt to create this brine solution. 

In normal operation, hard water moves into the mineral tank and the calcium and magnesium ions move to the beads, replacing sodium ions. The sodium ions go into the water. Once the beads are saturated with calcium and magnesium, the unit enters a 3-phase regenerating cycle. First, the backwash phase reverses water flow to flush dirt out of the tank. In the recharge phase, the concentrated sodium-rich salt solution is carried from the brine tank through the mineral tank. The sodium collects on the beads, replacing the calcium and magnesium, which go down the drain. Once this phase is over, the mineral tank is flushed of excess brine and the brine tank is refilled.

APPLICATIONS

• Production of softened feed water for steam generators
• Production of high purity, softened  water for pharmaceutical applications
• Softening, processes for food industry
• Laundry systems
• Ice making