China Big RO Plant Sea Water Desalination Machine Purified Water for Industry Reverse Osmosis Treatment Plant Salty Water Purifier Water Dispenser Ultrafiltration, Find details about China Salt Water Purifier, Waste Water Treatment Machine from Big RO Plant Sea Water Desalination Machine Purified Water for Industry Reverse Osmosis Treatment Plant Salty Water Purifier Water Dispenser Ultrafiltration
Items | Permissible Value | Probably Consequence of Excessive Standard | Improvement Suggestions | |
Suspended solids | Tubidity | <1NTU | Sludge ,colloid pollution | Flocculation and filtration |
SDI15 | <5 | |||
Metal oxides | Fe ( mg/L) | <0.05 | Iron Pollution | Oxidation precipitation/filtration |
Mn (mg/L) | <0.05 | |||
Scale forming matter | CaCO3 | LSI<0 | Concentrated water side does not permit scaling | Decrease recovery rate , PH value , or add scale inhibitor |
Other insoluble salt | / | |||
Organics | Oil | 0 | Organics and oil | Air |
TOC (mg/L) | <10 | Organics pollution | Activated carbon adsorption , filtration | |
CODcr (mg/L) | <10 | |||
BOD5 (mg/L) | <5 | |||
Si (mg/L) | <20 | Colloid pollution | ||
PH | 3-10 | Too low or too high PH will accelerate the aging speed of membrane | Regulation of Acid-base | |
Temperature | 5-45°C | Low temperature will easily produce scaling of undissolved salt High temperature will accelerate the aging speed of membrane | Heat exhanger | |
Oxidizer | Residual chlorine (mg/L) | <0.1 | Membrane system will be oxidized | Reductant or aclivated carbon adsorption |
Ozone and others | 0 |