Ro Design Calculation
Ro design calculationSome factors improve become desirable and some factors become worse undesirable.
Ro design calculation. Reverse osmosis module design and engineering emerged with membrane technology evolution. A percentage of plugging is calculated by comparing the time to fill a 500 ml jar with the ro feed water before the test ti to the time to fill a 500 ml jar with the ro feed water after the test tf. Reverse osmosis ro operating tools use this tool to estimate the cost of ro operations for an ro system you specify. Total number of elements 132 gpm 1440 gpd gpm 15 gfd 365 ft 2.
Recommended average flux for surface supply water feed with sdi 5 15 0 gfd 25 l m h. Filmtec bw30 365 element bw element with active membrane area of 365 ft 2 33 9 m 2 3. In order to understand module design first membrane configuration needs to be explored since the module design is always tailored according to the membrane characteristics. Toray reverse osmosis membrane elements are functional membrane elements with excellent quality and high performance developed with the polymer engineering expertise toray has gained over the years.
Water plant capacity calculations. Select plug flow 2. There are additional tools to explore energy savings in a boiler feed application as well as compared to ion exchange deionization. Sdi is a calculation of fouling potential.
The formula for silt density index sdi. The recovery rate is monitored using flow meters installed in the permeate and concentrate piping. Different manufacturers of reverse osmosis membrane have different characteristics and different membrane manufacturers have their own ro membrane calculation software such as dow rosa japan toray ro. Ro design parameters are average permeate flux lead element permeate flux concentrate flow rate per vessel feed flow rate per vessel individual element recovery rate and pressure drop per vessel etc.
Water balance and its quantity. There is a significant difference between membrane chemistries most. The design recovery is calculated as follows. Ro plant calculations free download as excel spreadsheet xls xlsx pdf file pdf text file txt or read online for free.
To the membrane module arrangement the software will calculate according to the design.