Antiscalant Dosing with Chemtex Chemicals

Scale and Corrosion is considered a curse to all industries, be it large or small.

Due to their subjection to water systems, heavy metal installations, industries face a huge annual loss due to these complications as they have direct implications on the production rate and outcome. Formation of scales cause severe metal lining problems, decrease in fluid flow rate, pitting and perforation, pore throats, wear and tear, machinery failure and primarily first stage of corrosion (in most cases).

Antiscalant dosing is preferred over other conventional treatments in counteracting scaling and corrosion. The primary reason being its simplicity and effectiveness over particulate matter deposition and cost efficiency. Most antiscalant chemicals work on adsorption mechanism, where they get adhered to the surface, preventing any interaction between inorganic salts and surface lining, ensuring lesser accumulation, lesser precipitation in the feeding solution, and ensuring prolonged protection.

Chemtex Antiscalant Chemicals can be directly dosed into the feeding system, and reduces the usage of acid usage. The exact dosage rate varies depending upon the severity of scaling, and typical OEM recommendations.

The composition and physico-chemical nature is tailor made to suit the specific nature of the problem enquired. Depending upon a number of co-related factors that help improve the workability of the system, also inhibiting the accumulation of inorganic salts that forms scales. Common compounds that are used in formulating an antiscalant are polyacrylic acids, polymaleic acids, organophosphates, polyphosphates, phosphonates, anionic polymers, etc.

The most likely mineral contaminants that poses threat to any metallic system are Calcium carbonate, Calcium sulphate, Strontium sulphate, and Barium sulphate.

• Boiler Antiscalants are multi-purpose heavy-duty chemicals designed to remove rust, hard deposits of water scale, iron oxides, oily contaminants, lime and greasy deposits from boiler systems. Regular usage of these chemicals provide protection to system metallurgy, ensuring an optimally longer boiler life cycle.
• For Reverse Osmosis systems, various formulations were evolved depending upon the type of membrane, quality of feed water and rate of product recovery;
  • Use of high pH RO antiscalants to inhibit scales and disperse colloidal particles in cellulose acetate and thin-film membrane separation systems, stable over a wide range of supersaturated salt solution. It prevents precipitation on the membrane surface, reducing the risk of scaling and helping in effective plant operations with optimal recovery rate.
  • Neutral RO antiscalants reduces membrane fouling within separation systems, effectively controlling inorganic salts, metal hydroxides, and colloids in RO feed water
  • Application with low pH antiscalants eliminate inorganic scales in multiple applications areas. It stabilizes metal ions to prevent metal oxides precipitation and disperses silt and clay particles.
• Thermal Desalination Antiscalant, new formulation is precisely formulated in order to provide excellent control of scaling & fouling. On regular application, it ensures reduced cleaning frequency and thorough cleaning.

 General Key Features & Benefits:

• Excellent cleaning efficacy
• Wetting agent for scale penetration
• Excellent removal of oil and grease
• Inhibitor package to prevent corrosion
• Excellent de-rusting

Chemtex Speciality Limited manufactures a wide range of antiscalant chemicals used for the purpose of deterrence of scaling and elimination of inorganic deposits over a broad spectrum application.

For more information, please visit: www.water-chemicals.com

RO Membrane Antiscalant effectively enhances the RO system efficiency

Scaling of membranes arises to be a reason for concern in the water treatment industries as it starts the chocking off the membranes due to build ups of deposited particles. Scale development by and large occur due to precipitation of sparingly soluble salts, for example, calcium sulfate, barium sulfate, calcium carbonate, strontium sulfate, and so on which are ordinarily accessible in normal water at high concentration. The blockage that occurred actually because of scaling prompts the decrease of permeates flux, along these lines alleviating the performance level of the procedure and upgrading the operation cost.

RO Membrane Antiscalant manifests as a fluid formulation that extraordinarily particularizes for reverse osmosis membrane system. Antiscalants serves as substances utilized for the restraint of development and precipitation of solidified mineral salts that by and large results into scale deposition on membrane. RO Membrane Antiscalant alleviates 80% of scaling inclinations if utilized on a persistent premise. This product helps in the delay of the development of the crystalline salt structures in the RO Feed Water. It counters and minimizes the closing down of the plants and membrane cleaning expense. It has all the earmarks of being superior scale inhibitors for water with silica upto 175 ppm, Langelier Saturation Index upto +2.7, Iron upto 1.4 ppm in reject, and high SDI.

RO Membrane Antiscalant offers a high rate of recuperation and requires a lower chemical dosage in contrast to other antiscalant items. It indicates adequacy in iron sequestration and in this way helps in counteractive action of fouling because of iron. It indicates similarity with a wide range of membranes and is a totally biodegradable item. This item helps in the augmentation of RO system run times, decrease in the frequencies in cleaning of films and upgrade of the general profitable and operative life of the Reverse Osmosis components. RO Membrane Antiscalant performs effectively to slice through scale deposition and subsequently tapper off fouling of films, regardless of the source of the feed water.

RO Antiscalant aids in ensuring beyond 80% reduction in scaling tendencies

Reverse Osmosis (RO) can be referred to as the process in which demineralization and deionization of water occurs by forcing it under pressure through a semi-permeable reverse osmosis membrane. For filtration of the heavily soiled water, using of the reverse osmosis membrane is accompanied by some critical issues that may bring down the productivity of the membrane. Generally, there are three major concerns that needed to be dealt with namely – Scaling, Degradation, and Fouling of RO membranes.

These problems show the tendency to reduce the system productivity because they reduce wastewater purity. Scaling takes place on RO membranes when the scale-forming substances concentration exceeds saturation, producing added solids within the RO feed water. Chemical substances that are included under scalants are calcium carbonate, calcium sulfate, strontium sulfate, barium sulfate, and reactive silica. These substances are hard to be removed from RO membranes on account of their low soluble nature. Scaling abates the efficacy of the membranes in decreasing the solids concentration and causes more frequent cleanings.

To avoid facing these kinds of circumstances, the RO Membrane should be treated with Antiscalants prior to the initiation of the process of Reverse Osmosis. RO Antiscalant functions as a liquid antiscalant for treating the RO membrane system. The range of RO Antiscalant includes Low pH, High pH, Neutral pH, High Silica RO Antiscalant, etc.

RO Antiscalant aids in ensuring beyond 80% reduction in scaling tendencies when used continuously. RO Antiscalant helps in controlling the inorganic scales of magnesium, barium, calcium, strontium, iron, fluoride and silica. It serves as a very effective antiscalant for waters with LSI upto +2.7, Silica upto 175ppm (or mg/l), Iron upto 1.4ppm in reject, High SDI. Reverse Osmosis Antiscalant keeps capacity of RO close to design, and helps in minimizing membrane cleaning cost and shutdowns. It accounts for effective scale inhibition with high recovery rate. It is potent at low chemical dosage. RO Antiscalant efficiently controls Iron fouling by sequestration thereby reducing the frequency of membrane cleaning.