Without some means of scale inhibition, reverse osmosis ro membranes and flow passages within membrane elements will scale due to precipitation of sparingly soluble gas, such as calcium carbonate, calcium sulfate, barium sulfate and strontium sulfate. To determine the adequate dosage rate for your system, it is recommended that you use suezs argo analyzer simulation software. Membrane master is the worlds foremost scaling prediction program and the result of many years of development. Membrane master scaling antiscalant prediction programme. The reverse osmosis ro membrane should be considered to be at the heart of any reverse osmosis plant system, and damage to it will cause reduced output, poor water quality and increased production costs. Does anyone have a list of the chemical components of. Antiscalant is an additive injected in water before subjecting it to reverse osmosis. Setting the correct maximum flux is critical for avoiding excessive fouling or decreased plant capacity. The advisorci brine concentrator acts as an additional stage and can model any type of system post ro used to increase recovery. Learn how to combat ro concentrate scaling through chemistry with this paper exclusively published. Basic water treatment math formulas for surface and well exams these formulas are intended to serve as a general resource and are not intended to be an all. It may be applied as the neat product, or as a solution in permeate. A minimum dosing solution strength of 10% ww is recommended. Antiscalant is a pretreatment water additive for reverse osmosis system which delays the reaction between calcium, magnesium and bicarbonate.
This is especially recommended for warm environments to prevent biogrowth. Acuro organics limited offers a full range of antiscalant to ensure the longevity and maximum production from your ro plant. Manual of practice for the use of computer models for the design of. Prospects of operation of msf desalination plants at high. Reverse osmosis antiscalant systems craft brew water. Antiscalant dosing projections all ro systems produce a concentrated reject stream and understanding the ionic composition and behaviour of the species in the fluid is the key to successfully optimising the plants long term performance and efficiency. Selection and dosing calculation of antiscalant the corolat expert web based product selection software was developed specifically to assist operators or designers of membrane systems in the selection of the most appropriate antiscalant for a specific system.
Most flocon products are in stock for sameday shipment. At antiscalant dose rates of up to 2 ppm there are quite few brand name antiscalants which are effective for as long as 20 minutes at 95 oc and brine concentration of 1. Wts c237 is a concentrated liquid formulation designed for use as a high ph cleaner of polyamide thin film composite membrane surfaces wts c237 works to remove the most stubborn biofilms and organic foulants wts c237 supports the cleaning of acid insoluble sulfates of calcium, barium and strontium as well as calcium fluoride wts c237 is especially. Ro antiscalant dosing calculator is very easy to calculate ro antiscalant dosing using current value. Contact kms customer service for specific dosing instructions. Here is an online medical calculator to know how the antiscalant chemical dosing calculation is done, which the amount of antiscalant is added for the reverse osmosis system. Maintaining proper dosing levels of an antiscalantdispersant is important. Basic water treatment math formulas for surface and well.
You can select your preferred dosing pump configuration and the software will advise the required flowrate per pump. Flocon antiscalant is more cost effective and space efficient than water softeners. You will have to provide the interpretation based upon your, and your companys, knowledge. Advisorci exceeding industry standards in scale prediction for even the most stressed applications with complex ion ci intelligence. Proton is the first antiscalant software that can design a nanofiltration or reverse osmosis system, and account for membrane properties and flux rates at the various stages of a system. Chempure 880 is an aqueous solution of a polymeric dispersants and antifouling agent. Tds temperature plant capacityproduct flow in lph recovery dosing tank size in litre dosing pump setting in percentage% dosing pump capacity in lph plant running hrday using above value you have get the following result. Our software can help to calculate the exact dose rate according your water analysis. An antiscalant, as the name suggests, serves to delay the scaling of salts and particles such as calcium carbonate, calcium sulfate and barium sulfate. Which to choose selecting the appropriate antiscalant is critical to optimize plant productivity for reverse osmosis. The membrane separation process utilizes a highpressure feed to force water through a semipermeable barrier. Just enter project details, operational data and a detailed water analysis and membrane master will automatically calculate the langelier saturation index and the most effective antiscalant as well as the recommended dosage. Click here pretreat plus 0100 antiscalant membrane chemicals are a highly effective chemical pretreatment specially formulated for feedwater with high levels of metal hydroxides, silica and scaleforming minerals. The information contained in this entry is provided by the above supplier, and does not necessarily reflect the views and opinions of the publisher.
Flocon antiscalant chemicals ro membrane antiscalants. Our mixtures are 100% free from substances which could harm the environment. The argo analyzer is designed to provide guidance on the best choice of antiscalant chemicals for your ro plant and will provide the appropriate application dosage based on your specific water chemistry and system design. As the water passes through the membrane, contaminants are rejected and eventually flushed to the waste stream. Proton can be used to design a new ronf system, performs a complete suite of hydraulics calculations, and accounts for tail element concentration polarization in its scaling calculations. It is highly effective at low dose rates and in a wide range of feedwaters and is certified for use in systems producing drinking water. The pure aqua cds series chemical dosing systems offer a wide range of capacities to meet various chemical treatment applications. Intelligent antiscalant dosing advisorci is a whole new way of looking at chemical dosing software. We manufacture and supply specialist, high quality ro antiscalants products to industry and water treatment plants in global markets. The plant requiring only one membrane clean in 18 months instead of one every month as previously. While detailed calculations are frequently conducted using computer modelling.
Scaling means the deposition of particles on a membrane, causing it to plug. Stainless steel antiscalant dosing electric pump, id. Computer models are not a substitute for sound engineering judgment. Flocon antiscalant is a pretreatment water additive for reverse osmosis system that is highly effective in preventing the membranes from scaling. Scale things like calcium carbonate in the water will change form under heat and plate out in piping and machinery. It is an attractive option because it has the demonstrated advantages of operational and capital cost reduction, environmental acceptability and safety. We have exceeded all industry standards relating to scale prediction by including complex ion formation and improved temperature correction factors to gain maximum ro system recovery for even the most stressed applications.
A wide variety of antiscalant dosing pump options are available to you, there are 205 suppliers who sells antiscalant dosing pump on, mainly located in asia. Decrease in heat transfer coefficient and increase in fouling factor were calculated to demonstrate the effectiveness of additives as shown in fig. Alternatively, you can run a scale projection software yourself by requesting the software from us on the contact. The second pass permeate polisher is operating without. Ranking of antiscalant performance for gypsum scale suppression in the presence of residual aluminum. Furthermore, the trend of the design of chemical dosing stations is towards package type, skid mounted and complete in every respect with base plate, interconnecting. It contains some means of upstream scale inhibition, ro. Naoh can be added to the dilution to increase the ph to 1011. The recommended injection point is into the feedwater downstream of any filtration equipment and cartridge filters. Advisorci chemical dosing software avista technologies, inc. Antiscalant dosing is known to be very effec tive at preventing scale formation 8.
Flocon 5 antiscalant for ro systems is an aqueous solution of a specialized phosphinocarboxylic acid, highly effective in controlling the deposition of inorganic scale forming salts on membrane surfaces. Us water antiscalant injection system 15 gallon tank. Antiscalant dosing calculator antiscalant chemical. Investigation of antiscalant dosing in uence on scaling process in. The membrane, or rejecting layer, allows the passage of pure water but holds back the dissolved salts. The program is an intuitive and userfriendly simulation, which makes it easy. Proton antiscalant software our proton aqueous membrane chemistry calculator is the worlds most powerful antiscalant projection software. Specifically designed for water with gypsum scaling potential in industrial and mining applications. Antiscalant dosing chemicals instant dosing chemical. Chempure 880 has been developed as a powerful antiscalant for use in evaporator systems to control the deposition of scale forming salts like calcium sulphate and carbonates.
Usage flocon plus n is miscible with water in all proportions. The user has the option of using the system design provided by proton. Pdf investigation of antiscalant dosing influence on scaling. This allows for simultaneous variations of the main ro and brine concentrator ros recovery rates, to allow the designer to maximize the overall recovery. Antiscalant is a pretreatment to water that is highly effective in preventing the membranes and other parts from scaling. The heat transfer coefficients for all additives were consistently greater than design value. Antiscalant dosage calculator should be used to calculate the amount of pwt antiscalant delivered by dosing pump from a dilution tank, direct from the drum or from a bulk storage facility, into the feed water based on the feed flow and the desired pwt antiscalant active dosage concentration. Permatreat pc191 dosage is dependent on feedwater chemistry, membrane type, and system. The next generation of scaling prediction software. In general, antiscalant is typically dosed at 35 mgl and feed ph is adjusted to yield an lsi of less than 2 in the concentrate, depending on the type of antiscalant and other conditions. Application guide 8 combination of scale inhibiting. Prodetecs is a mexican company dedicated to the treatment of water, especially focused on the sales of equipment for dosing of chemical products liquids, gases and dry, and the disinfection of water, all this, through different technologies, such. At antiscalant dose rate of 2 ppm there appears to be only few which could be considered to be effective at 110 oc and brine concentration of 1. The choice of the product should be made on the basis of the chemical characteristics of the water to.
Evaporator antiscalant chempure 880 antiscalant for industrial evaporator general product information. The concentration of the contaminants is crucial to determine the design and operation of the membrane system. Storage to be stored in cool and ventilated warehouse, avoid direct exposure in the sunshine. A wide variety of antiscalant dosing options are available to you, there are 206 suppliers who sells. Intelligent chemical dosing exceeding industry standards in scale. Vitec 1500 is a liquid antiscalant designed to inhibit or reduce calcium fluoride, calcium sulfate, calcium carbonate, calcium phosphate, barium sulfate, and strontium sulfate scale. Water is passed through the anti scalent filter before it enters the reverse osmosis membrane. Alexei andrianov at moscow state university of civil engineering alexei andrianov. Corolat calculates brine salt solubility for specific.1019 887 1584 740 1560 589 641 1363 104 750 1115 324 1587 12 1268 1073 1048 46 510 376 86 1288 858 1354 1033 14 526 900 1115 1592 1352 809 743 366 1227 808 358 1434 492 1171 1440 1382 1134 599