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Monthly Archives: May 2016

PostgreSQL Database in Xampp

May 14, 2016

Xampp postgreSQL How to Integrate postgreSQL Database to XAMPP in Windows Installing postgreSQL 1. Download the postgreSQL installer from EnterpriseDB. 2. Run the installer and follow the on-screen instruction. Note: pgAdmin also get installed alongside. 3. Assuming XAMPP is located in C:\xampp; using the pgSQL installer, install postgreSQL in say C:\xampp\pgsql\9.1 folder. In my case, ... Read More »

Performances of some Filmtec membranes

May 14, 2016

NOTES FROM DIFFERENT SOURCES AND PERSONAL  Performance of some FILMTEC membranes SW30HR BW30 XLE NF270 Feed pressure (psi) 370 150 70 50 Feed pressure (bar) 25 10 5 3.5 Rejection (%) Sodium chloride NaCl 99.7 99.4 98.6 80 Calcium chloride CaCl2 99.8 99.4 98.8 50 Magnesium sulfate MgSO4 99.9 99.7 99.2 99.3   At 18 ... Read More »

(Français) Alcalinité de l’eau

May 9, 2016

Alcalinité de l’eau   L’alcalinité de l’eau se définit comme étant sa capacité à neutraliser un acide. L’alcalinité de l’eau naturelle est liée principalement aux carbonates, aux bicarbonates et aux hydroxydes. Les borates, les silicates, les phosphates et certaines formes de matière organique contribuent légèrement à son alcalinité.   L’alcalinité se mesure par titrage avec ... Read More »

RO System Energy Consumption

May 3, 2016

Reverse Osmosis system electricity consumption Electricity consumption depends on raw water quality (individual ions concentration), Reverse osmosis system design (system recovery rate, number of stages, type of membranes, etc.) and operating conditions (water temperature). You can use Reverse osmosis design simulator to estimate electricity consumption. It is not an accurate result but will give you ... Read More »

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