From: Fluoride pollutants removal from industrial wastewater
Element to be analyzed | Results | Units | Accepted limits according to Egyptian Code No. (501/2015) maximum limit |
---|---|---|---|
Physical parameters: | |||
pH | 6.85 | ––– | 8.5 |
Color | Colorless | mg/l Pt Co | Colorless |
Physicochemical parameters: | |||
Chloride [Cl−] | 333 | mg/l | 400 |
Sulfate [SO4−−] | 85 | mg/l | 500 |
Bicarbonate [HCO3−] | 61 | mg/l | 400 |
Sodium absorption rate [SAR] | 4.3 | mg/l | 9 |
Sodium [Na+] | 163 | mg/l | 230 |
Potassium [K+] | 75 | mg/l | – |
Magnesium [Mg++] | 30 | mg/l | 100 |
Calcium [Ca++] | 215.8 | mg/l | 230 |
Fluoride [F−] | 12.46 | mg/l | 15 |
Phosphate [PO4+++] | – | mg/l | 30 |
Lithium [Li] | – | mg/l | 2.5 |
Phenol | – | mg/l | 0.002 |
Total dissolved solids [TDS] | 2472 | mg/l | 3000 |
Total suspended solids [TSS] | 2.2 | mg/l | < 30 |
Biochemical oxygen demand [BOD] | 13 | mg/l | < 400 |
Aluminum [Al+++] | 15.3 | mg/l | 20 |
Arsenic [As+++] | < 0.001 | mg/l | 2 |
Beryllium [Be++] | 0.3 | mg/l | 0.5 |
Copper [Cu++] | 0.12 | mg/l | 5 |
Iron [Fe++] | 1.9 | mg/l | 20 |
Manganese [Mn++] | 0.27 | mg/l | 10 |
Nickel [Ni++] | 0.06 | mg/l | 2 |
Lead [Pb++] | 0.49 | mg/l | 10 |
Selenium [Se] | < 0.001 | mg/l | 0.02 |
Cadmium [Cd] | < 0.001 | mg/l | 0.01 |
Zinc [Zn++] | 0.38 | mg/l | 10 |
Chromium [Cr] | 0.11 | mg/l | 1 |
Mercury [Hg] | < 0.001 | mg/l | 0.002 |
Vanadium [V] | < 0.001 | mg/l | 1 |
Cobalt [Co] | < 0.001 | mg/l | 5 |
Boron [B] | 1.31 | mg/l | 2 |
Molybdenum [Mo] | < 0.001 | mg/l | 0.01 |