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You must first consider the demand required steam, then you can estimate the size of the boiler.It is important to know that maintaining a vertical boiler is a bit more complex than the horizontal type. http://www.hurstboiler.com/documents/184/vix_series.pdf regards, MA

Hi, I have problems with a sand filter / zeolite. change the filter bed two months ago and since then the filter has to count out pseudomonas aeruginosa. try soaking the bed with a solution of calcium hypochlorite and we are waiting for microbiological results. if not improve water quality need...

It is important to know the values ??obtained from SDI, however, it is important to know that the filtration process is nearly always the most appropriate, as long as the design is in tune with the consumption of water per day. If your water usage is very high compared to the specifications of...

Good morning, I have a purified water plant where the final two drives in parallel CEDI which serve to bring the conductivity of 2.5 microsiemens approximately 0.300. I would like to know why there is a difference of amperage on both drives, is this normal? yesterday conducted a chemical...

Good morning, I have a purified water plant where the final two drives in parallel CEDI which serve to bring the conductivity of 2.5 microsiemens approximately 0.300. I would like to know why there is a difference of amperage on both drives, is this normal? yesterday conducted a chemical...

ok thank you very much, my doubt was cleared. Manuel Arguelles Pharmaceutical Plant

Good day, I know the reason why I can not use in my system Softening industrial salt with iodine and fluoride? Currently it is difficult to get into this salt market and in my store there is only edible salt with iodine and fluorine. I have two days softening salt for human consumption...

Hi, Placed in KCl solution to prevent wear on the electrode, once you have calibrated your Phmeter should have no problems. - Check the temperature of the samples meet the specifications of the electrode. - Check your calibration buffers are correct. (normally used calibrated between 4 and 7) -...

Hello, from the standpoint of efficiency, you should consider that as a function of pH hypochlorite is effective at pH 6 -7. What I see is that you can have long-term scaling problems due to the form of calcium. If you can use sodium hypochlorite would be excellent. Greetings. Manuel...

hello, for a mixture of several species (SO2, H2O, CO2, O2) is very difficult to predict behavior. Raoult's law holds for mixtures of two species in a vapor-liquid diagram for your case, taking into account the two higher molecular weight species (SO2 and CO2) and apply the diagram McCabe...

Hi, usually the SS is affected by high concentrations of chloride. Anyway, put a 1 micron filter in the loop and replace it when you have a drop of 5 psi. This will help with the erosion in the pipe (if any). Additionally I would like to know the system volume and the amount of chloride...

You should check the volumes of waste vs. the final volume to download, and also review the chloride discharge limits in your area. Usually biological systems are limited in the removal of high amounts of chlorides. M.Argüelles

Hi, I have a cooling system (evaporative condenser) with the following conditions: 1. The makeup water containing 2 ppm of ortophosphates. (Used as corrosion inhibitor in the pipeline). 2. This water is used to feed a cooling system which uses an alkaline dispersant based on phosphonates...

Thanks, and the white foam in the aereation phase?? Manuel Arguelles Venezuela

Hi, i have problems in my wastewater plant: The pH of effluent is near to 8.0, the pH feed to SBR is near to 6.5 and in the reaction phase have much white foam. it is possible that the foam must to an excess of coagulant/floculant used in unit CAF, previos to SBR. Water Analysis are: Feed...

Hi, Betz dearborn have a paper related with a operative consensus in the chemical water of boiler water suggested by the ASME. http://catalog.asme.org/books/CDROM/Consensus_Documents_Feedwater.cfm Request me in any time. Manuel Argüelles Quality Analist Venezuela

what is the ideal pH for a feedwater boiler to work 150psig? * The pH feed is behind 6.8 and 7.5 but in the boiler have pH 11 at 3 cycles. I can have problems in the future?? I feedind NaOH and my feed pH raise 9.2, but is not very high?? sulfites residuals is 30-60 ppm. Thanks. Manuel...

you are determine phosphate with NaOH? dont understand?? 1. Said me the type of kit that you are using?? 2. if the stequiometric relation behind NaoH and Phosphate is = 1. ppm PHOSP= ml NaOH added*Conc of NaOH* PMolecular of PHOSP/Sample volume. Bye. CHEM. TeCh Manuel Arguelles Quality...

Not only the hard water can bring any problem in the impeller...silice too..!! the temperature have a importan factor... what is the amount of silice that you have.?? use a bypass use a softener.. o use a dispersant in a cocentration of 10-15 ppm. (poliacrilate or poliacrilamide) Chem. Tech...

Hi, I need to find papers or web pages related with effluent treatment, information such as Treatment theory, SBR, DBO, unitary operations, interpretation of water analysis for waste water. philosophy of plant operator and wastewater laboratory. im beginning a new job related with this, and my...