Complaint
sea water reverse osmosis seawater reverse osmosis salt water desalination swro
Salted water is not always the same. Depending on whether they come from warm or cold oceans, closed or open seas, their salt content will vary. This is a short comparison between samples:
Brackish water:0,5 to 10 g/l, (TDS range: 2000ppm to 20000ppm)
Northern Sea close to estuaries :21 g/l (TDS range: 10000ppm to 21000ppm)
Atlantic Ocean :35 g/l (TDS 35000ppm)
Mediterranean Sea :38 g/l (TDS 38000ppm)
Arabian Sea :45 g/l (TDS45000ppm)
Red sea: 41g/L (TDS 41000ppm)
Dead Sea :300 g/l. (TDS 300,000ppm)
Different Water TDS(Total Dissolved Solids) compare and usage
| Raw water/ Application | Bottled water, Bag water | City tap water | Brackish water | Seawater |
| TDS Range | 2-10ppm | 100-1000ppm | 2000-20000ppm | 20000-40000ppm |
| Direct Drinking | Yes | Yes/No | No | No |
| Cooking, human consumption, washing | Yes | Yes | No | No |
| Irrigation, Industry, Animal Drinking | Yes | Yes | No | No |
SWRO Process steps introduction
| Pre-treatment | Feed water pump, Stainless steel 316L | Provide pressure for filters; |
| Quartz sand filter | Remove suspended particle and large impurity. In this system; | |
| Active Carbon Filter (option) | Remove the color, free chloride, organic matter, harmful matter, ect; | |
| Anti-scalant system | To add chemicals to remove some impurities and prolong thememebranes using/washing time(prevent membrane blocking) | |
| Manual/Auto control valves | Flushing sand/carbon filter after some time | |
| 5micron filter | Remove larger than 5 micro colloids in the water. In this system | |
| 1micron filter | Remove larger than 1 micro colloids in the water. In this system | |
| Seawater RO Main Part | High pressure pump, Stainless steel 316L | Provide the high pressure to RO membrane; |
| Ro membranes | More than 98% desalination rate, can remove ions except H2O. | |
| CIP system | To washing the membranes when it is blocked after using for long time | |
| Electronic control panel | PC controller or PLC and HMI controller |
SWRO process flow chart:
| HY-SWRO-500L/hr (10m3/D) | |||
| Flow rate | 10000L/day | Recovery rate | 30% |
| Applicable power | 380V/50HZ 3 phase | Rated power | 4 KW |
| Feedwater TDS | <45000ppm | freshwater TDS | <600ppm |
| Working pressure | 60 bar | operating temperature | 5-45ºC |
| Feedwater residual chlorine | <0.1ppm | Feedwater SDI | <5 |
| Feedwater turbidity | <1NTU | Feedwater PH value | 3-10 NTU |
| RO membrane housing | 4040, 4 piece | RO membrane | 4 piece |
| plant specification | 1.2X1.2X1.65(m) | Net weight | 330Kg |
| Packing specification(Plywood) | 1.3X1.3X1.75(cm) | Gross weight | 350Kg |
Related SWRO
