PuriTech Ltd

PuriTech Ltd Industries

  • Water Filtration and Separation

  • Industrial water TOC and Color removal from water - Water and Wastewater - Water Filtration and Separation

    Industrial water TOC and Color removal from water

    All surface waters contain varying amounts of naturally occurring organic acids. The most commonly encountered being tannic and humic. These substances have varying molecular weights and varying amounts of carboxylic functionality. There has been much interest in the removal of these substances from drinking water supplies due to their tendency to form THM`s when chlorinated. They can be removed effectively by use of anion exchange resins operated in the chloride cycle. Because the organics can be removed by...

  • Industrial water Ammonia & Arsenic removal from water - Water and Wastewater - Water Filtration and Separation

    Industrial water Ammonia & Arsenic removal from water

    Nitrogen is a nutrient essential to all forms of life as a basic building block of plant and animal protein. Nevertheless, too much of it can be toxic. The processes used for the removal of ammonium ions from drinking waters include ion exchange. PuriTech`s ION-IX system can be broken up into 4 distinctive zones with each zone operating continuously. The resin is initially loaded with the Ammonia ions (and partially calcium and magnesium)in the adsorption zone. As the ION-IX multi-port valve rotates, the resin...

  • Industrial water Nickel & Cobalt purification - Water and Wastewater - Water Filtration and Separation

    Industrial water Nickel & Cobalt purification

    Cobalt is a brittle, hard transition metal with magnetic properties similar to iron. It is mainly used as an alloy with iron, nickel or other metals to produce corrosion and wear resistant products for high temperature applications (such as jet engines, gas turbines, etc.). Cobalt is normally produced as a by-product of nickel or copper mining. The purity requirements for Cobalt do not allow nickel to exceed a concentration 0.1%. Earlier, the nickel was removed by lime precipitations, but as the market specifica...

  • Industrial water Nickel Laterite - Water and Wastewater - Water Filtration and Separation

    Industrial water Nickel Laterite

    Lateritic nickel ore deposits are surficial, weathered rinds formed on ultramafic rocks. Nickel laterites are a very important type of nickel ore deposit, they comprise 73% of the continental world nickel resources. They are growing to become the most important source of nickel metal for world demand. Nickel is a hard, silver white metal that has industrial applications related to its strength, corrosion resistance, high ductility, good thermal and electrical conductivity and catalytic properties. Its primary...

  • Industrial water Copper removal and recovery - Water and Wastewater - Water Filtration and Separation

    Industrial water Copper removal and recovery

    Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color. It is used as a conductor of heat and electricity, a building material, and a constituent of various metal alloys. Recycling is a major source of copper in the modern world. A combination of economic and regulatory factors are now at work to make metal recycle and water reuse very attractive.

  • Industrial water Zinc recovery from pickling acid solution - Water and Wastewater - Water Filtration and Separation

    Industrial water Zinc recovery from pickling acid solution

    The zinc chloride is to be removed from pickling acid at 6N concentration. Under these conditions, the ZnCl2 will form a stable complex and may be removed by PuriTech`s ION-IX technology using an anion resin. The resin is then eluted with water.

  • Industrial water Gold and Silver - Water and Wastewater - Water Filtration and Separation

    Industrial water Gold and Silver

    Cyanidation is still the most widely used method to leach gold, using sodium or calcium cyanide as lixiviant. An anionic gold-cyanide complex is formed that is extractable by basic resins. Other metals present in the ore, such as silver and base metals ( copper, nickel, cobalt, zinc, iron, etc. ) are also leached in cyanide media. Selective ion exchange resins are designed to preferentially adsorb the mono-valent gold-cyanide species.

  • Industrial water Uranium recovery & purification - Water and Wastewater - Water Filtration and Separation

    Industrial water Uranium recovery & purification

    The type of Uranium mineralization and the nature of its association within a particular deposit will have a major impact on process route selection. Uranium minerals are classified according to their influence on extractive metallurgy. The presence of impurities such as Vanadium, Molybdenum, and others may dictate that ion exchange is to be employed.

  • Water Treatment

  • Industrial water softening - Water and Wastewater - Water Treatment

    Industrial water softening

    The presence of certain metal ions in water causes a variety of problems. These ions interfere with the action of soaps, lead to build up of limescale, which can foul plumbing, boilers, heating equipment. Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water extends the lifetime of plumbing and heating equipment. Softening of low TDS ( Total Dissolved Solids ) water is done commonly with a Strong Acid Cation ( SAC ) exchange resin operating...

  • Industrial water demineralisation - Water and Wastewater - Water Treatment

    Industrial water demineralisation

    Deionized water, also known as demineralised water, is water that has had its mineral ions removed, such as cations like sodium, potassium, calcium, magnesium, iron, and anions such as chloride, nitrate, sulfate, bicarbonate and even silica. Deionization is a chemical process that uses specially manufactured ion exchange resins which exchange hydrogen ion and hydroxide ion for dissolved minerals, which then recombine to form water. Because the majority of water impurities are dissolved salts, deionization...

  • Industrial water Nitrate removal from drinking water - Water and Wastewater - Water Treatment

    Industrial water Nitrate removal from drinking water

    Since nitrates are very soluble and do not bind to soils, they have a high potential to migrate to groundwater. For the short-term, excessive levels of nitrate in drinking water have caused serious illness and sometimes death. The serious illness in infants is due to the conversion of nitrate to nitrite by the body, which can interfere with the oxygen-carrying capacity of the child’s blood. This can be an acute condition in which health deteriorates rapidly over a period of days. Symptoms include shortness...