DEMINERALIZATION PLANT

Ion exchange technology is used to remove salts (cations and anions) from the water Soluble chemical compounds, when dissolved in water, become ionized; that is their molecules dissociate into positively and negatively charged components called ions. Consider common table salt, sodium chloride. In its solid form, this compound consists of one sodium atom (Na) and one chlorine atom (Cl) tightly coupled together (NaCl). When dissolved in water, however, the compound splits into two ions, Na and Cl.

Ion Exchange
A process in which Contaminant ions are exchanged from water is called ion exchange. This process occurs in ion exchange resin Initially, resin is loaded with hydrogen (H ) ion for cations and hydroxide (OH-) ion for anions. As water passes through the resin, the contaminant ions in the water displace the loaded ions from the sites on the resin. This is because the resin has a greater affinity for the contaminant ions. Affinity for most resins is based loosely on ionic size and charge

WATER SOFTENER

Raw Water is termed “Hard Water” when it contains dissolved salts of Calcium & Magnesium. Temporary alkaline or carbonates of calcium & magnesium, Permanent non alkaline or noncarbonated hardness is caused by dissolved chlorides, sulphates or nitrates of calcium & magnesium, Softener removes hardness in water.

Process

The softening process consists of passing raw water containing hardness through a bed of cation resin in sodium form. The hardness ions Ca & Mg are taken up by resin and in exchange sodium ions are relinquished from the resin. Raw water will continue to get softened till the resin gets exhausted. Bringing back the resin to it original form is called regeneration. Softener resin is regenerated by sodium chloride (NaCl) of 10 -15% Concentration.

We offer durable pressure sand filters that are used for the removal of suspended solids & turbidity. The pressure sand filter is extremely robust method of removing suspended solids from water. The filtration medium comprised of multiple layer of sand having different size & specific gravity. As per the needs of customers, we can offer sand filters in various sizes and material apart from hand operated or fully automatically, Filter is used for separating water suspended solid for better operation of filter, suspended solid should be coagulated. The advantages of pressure filter are high speed of filtration, less space, low charge and prevent heat loss after the warm or hot lime process.  

ACTIVATED CARBON FILTERS
 Activated carbon filters are used for removing free chlorine, phenol, taste and odour as well as reduction COD/ BOD. The specially designed filters are made from FRP closed vessel fitted with multi port valves and are operated under pressure. The water is passed through the under bed media & granular activated carbon layer. These filters have a back flushing arrangement, which easily flushes away the deposited impurity at carbon granules. 

Activated carbon filter, for removal of free chlorine, phenol, taste and odour as well as reduction COD / BOD.    
Granular Activated Carbon is a well establishing & proven technology for the removal of taste, odours and gases from water.
It is extremely effective in the removal of many Volatile Organic Compounds (VOC) and other Petroleum-based contaminants.

The Ultra Safe Filters use Granular Activated Carbon, manufactured from hard coconut shell having Iodine content of 900-1000 ppm, whose extraordinary molecular structure adsorbs much more molecules of contaminant molecules that adhere to its surface, through absorption and adsorption.

REVERSE OSMOSIS PLANT
The Numatik Engineers Pvt. Ltd. desalination unit uses the reverse osmosis process to remove dissolved solids from brackish or saline water. The process is continuous and requires no regeneration chemicals. The unit is factory tested and easy to install and operate. Treated water quality is continuously monitored by a Total dissolved Salt indicator.

Reverse Osmosis System
Exploding population, industrial effluents, and reckless deforestation have depleted natural sources of pure water. Dependence on erratic monsoons to replenish these sources has proved extremely inadequate & expensive. Good management of existing water resources and untapped sources, along with recovery and recycling of Industrial effluents & municipal waste water, seem absolutely essential for the future of mankind. 

Conventional Methods
Forced by the demand for more and better quality water, conventional methods of Water Treatment are becoming more expensive and inefficient, more so if the input water is brackish.

Mixed bed demineralizer plant embodies a single column unit in which strong cation & strong anion resins are intimately mixed together. Water passing through the column comes repeatedly in contact with these resins and is thus in effect subjected almost infinite number of demineralizing stages. Demineral water of extreme purity is produced - Purity that can not be produced by any other commercial method.
 Mixed bed resins are regenerated with acid and alkali but the ion exchange resin must be separated before this can be done.

1.1 Quality of water
A typical quality of mixed bed treated water is as follows 
Conductivity at 25OC   <1 micro siemens /cm
Silica max                      0.05 ppm as CaCO3
Total electrolyte             < 0.5. mg/ litre 
Total hardness                Nil
pH                                  6.8 ---7.2