Our spring water contains 68 ppm of Silica. Due to heavy rains the water tables are high and we encountered algae contamination. PAC (Poly aluminium chloride) is not approved. I am a crude stabilization unit process engineer. It's just a LOT of things to do and keep track of! Thanks Scott, you mentioned microbes that remove silica. Silica in bore well is 110 ppm, T. Alkalinity is 415 ppm, Total hardness is 150 ppm. Please give a solution, Natural waters, generally, contain about 5-8 mg/l of silica (Si0,). Q. Silica value is coming very high in dm plant. I'm afraid this isn't going to be the news you want to hear. Granular silica removal is generally accomplished through physical chemical separation. There is no cheap whole-house solution to your problem. Operation at a higher pH increases the degree of ionization of the silica and its rejection, but increases the vulnerability of your system to hardness fouling. Corrosion What is the reason of SiO2 increasing? Silica Source of Silica Silica (SiO 2) is an oxide of silicon, and is present in almost all minerals: It is found in surface and well water in the range of 1 - 100 mg/i.Silica is considered to be colloidal in nature because of the way it reacts with adsorbents. Thank you again, Read further up the thread for discussion of 'DI systems' using this technology. soft water filtration Normally these methods work well for most well or surface waters where silica is below 15-20 ppm. water well, Posted by Q. I'm doing my research in desalination esp. sludge Silicate and silica particles of otherwise identical mineral forms can have different surface charge, according to their geo-history or immediate pre treatment. Q. I have a DI system which forks into different environmental chambers used for testing Glass PV Panels. High temperature softening greatly improves silica removal. Cl : 5424 Using magnesium compounds during the hot lime-soda process of softening and recirculating the sludge. Request your feedback.. Is there any comments or special considerations from anyone? The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful. At about 40 kg/cm steam pressure, about 5 ppm of silica dissolves in steam and goes along with it. I know two processes, soda lime and activated alumina ... but how much it is feasible, I don't know. You could add a tank of mixed bed resin after your DI system, or you will need to regenerate the anion resin before the water reaches a conductivity set point. You may need a tighter membrane. If you want to have less silica in your DI water, there are several possible ways to accomplish this. This will not ion exchange and may foul an RO membrane. operation Since silica can accumulate on machinery surfaces and cause hard mineral deposits known as scale, many facilities work to remove this contaminant before it causes production issues. ACRONYMS: Now simply pour the water on the corals to remove the silica. window.addEventListener("load", function(){ Conventional precipitation technologies are reasonably cost efficient to achieve partial … Does anybody have proven numbers(reality) on silica rejection by membranes like CPA3? Q. "popup": { Reactive silica 88g/m3 as SiO2 If silica in dm water, why? Na : 1212 IBD = intermittent blowdown. Nor shower in it, or use it in a fish tank. If you read earlier discussion in this thread, one of the things you might notice is that with water purification there is an efficiency of scale (oh no did I just make a bad mineral deposits pun? 1) "is it still true that, as was stated by another person, that silica, whether in colloidal or reactive (soluble) form, can be effectively removed to very low levels by reverse osmosis?" Q. Regards. As per Dan Cooper, Mg helps in removal of silica; but in my research it proved wrong. Water There is no such thing as silica intoxication, as long as .your body keeps up normal levels of B1 vitamin and potassium, and the water … It is much more involved and costly than I had hoped. Anybody know whether silica stays in water phase or it can be partially transferred to the oil phase during the mixing in desalter vessel? I would have to research to see if our water pressure would provide adequate flow for the proposed uses and how much waste water would be produced. I do appreciate any information. filters 2) One person with a home well said that it would cost $15,000 for whole house reverse osmosis. Figures 2, 3 and 4 are curves showing the effect of sludge magnesium concentrations on the removal of silica from water at different ter- Co peratures. & Install'n Chemicals & Consumables I know that colloidal silica may strengthen oil-in-water emulsion, but what about dissolved silica? Shirley. I also use Ozone at bottling time. We are continuously open cbd and every hour ibd for 20 sec. So right now we are not able to eliminate the cause for such silica contamination but we need to figure out how bad can be the effect of silica-containing condensate to the desalting process as well as to downstream equipment: oil heat exchangers and reboilers. Silica in deionized water can easily be reduced to 20-50 ppb. remove colloidal and dissolved silica, which can be found in high concentrations in brackish water. But if you search Amazon or other sites you will find water stain removers that claim to remove silica; then you can look up their SDS and you will find the fluoride listed. water plant Lime softening is one of the most common methods for removing silica from water such as make up to cooling towers, make up to boilers or boiler blow down water. In Arizona this presents a problem of course; the cycling up of silica often limits the capacity to produce power. For each ppm of SiO2, generally, 4.2 ppm of sodium fluoride is required. In my RO feed the COD is 700 ppm, so my membrane fouls instantly. However, if this is DI water, then further treatment is needed for most uses. Has been quite effective with silica. The HFS60 membrane can either be installed downstream or upstream of the demin plant. Please give technical process if it's reason of SAC EXHAUST. A. The water is then passed through hydrogen exchanger. Silica Ion-Exchange system can complement any water treatment system if there is a need to remove the silica from water specifically. Please keep on posting on this topic. I tested town water this week and I received the following information from the lab. A. Hi Jayeshkumar. Most units using silica gel technology to remove moisture provide a fail-proof method of determining when Colloidal silica will show up very little even in the chemical test, as it is a polymer and quite unreactive. As a residential consumer, you don't get to take advantage of all these efficiencies, and will, unfortunately, pay top dollar. 2, 3 and 4 to show the effect of temperature on the removal of silica from water by treatment with magnesium-containing sludge. This water is for for industrial battery charging. Aluminium? "button": { And you can usually install them yourself! If treatment required, please suggest treatment. Speaking from experience here; do not recommend. chlorination Chlorine Particles smaller than .015 microns can become lodged inside the membrane pores, occluding them and causing an earlier than expected loss of production. Q. Dear all ----Ed. (required), chemical treatment Silicon 53g/m3 Q. water filter removal of silica from concentrated brines using lime. Drinking Water One big problem is, we notice that the Chlorine Dioxide (0.4ppm) raises the pH to 7.6 and also reacts with silica forming a white precipitate (floc like) and I think this causes inefficiency in killing the algaes. A colloid is a gelatinous substance made up of non-diffusible particles that remain suspended in a fluid medium. waste water JUST the materials/components. 3a) "They said silica is at only about 20 parts. Can anyone explain why did this happen and is there anything where alkalinity comes into picture? The water temperature is around 20 to 25 degree. Sir, my plant is ion exchange and anion silica is 0.456 mg/Lit. Please let me know how we can remove the silica from the water and what is the outlet limit of silica as per WHO. level of 5 ppm - is this by IE/RO/SBA or by EDI? Q. ©1995-2021 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy A bit bulky to take up a lot of under counters space but realistic if required. Removal of silica in water Can affected by : Using magnesium compounds during the hot lime-soda process of softening and recirculating the sludge. Thank you. Q. Dear, in our boiler the silica contains 0.53. Regards. A. watertreatment Our lab in-charge says 10 ppm silica in DM water ... is that a right or wrong report, please tell me. Q. I would like to know if there is a method of removing silica from boiler blowdown having a concentration of 150-200 ppm to below 5 ppm? What could be the possible method to remove 50-70 ppb of colloidal silica to NIL ? Total Dissolved Silica 114g/m3 as SiO2 (silicon x 2.14 by calculation) What about just a water softener? TDS : 9407 This article discusses the origin and measurement of colloidal silica, its effect on water treatment processes and methods for removal of colloidal silica. Info was published in one of the Power Generation publications. 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