The studied area is considered as one of the most promising localities for industrial activities. Industrial water is quite diverse and the required water quality is dependent on the type of industry. Comparing the results of the chemical analyses of the collected groundwater samples with the suggested limits for some selected industries (National Academy of Science 1972), Table 11, we can conclude that about 56% of the Quaternary samples are suitable for most industrial usage but the rest of them have higher salinities and all of the Miocene samples can be used for the petroleum industry only.
Water quality requirements for some selected industries and processes (National Academy of Science 1972)
| . | Industry . | Boiler feed water pressure in atm. . | |||||
|---|---|---|---|---|---|---|---|
| Chemical constituent . | Paper . | Petroleum . | Fruit and vegetables . | Textile . | Low . | Intermediate . | High . |
| pH | – | 6.5–8.5 | – | – | – | – | |
| TDS | 200–500 | 3,500 | 500 | 100–200 | 700 | 500 | 200 |
| Hardness | 100–200 | 900 | 250 | 0–50 | 350 | 1 | 0.07 |
| HCO3− | – | – | 480 | – | 170 | 126 | 48 |
| Na+ + K+ | – | 230 | – | – | – | – | – |
| Ca2+ | – | – | 100 | – | – | – | – |
| Mg2+ | – | 85 | – | – | – | 0.25 | 0.01 |
| SO42− | – | 900 | 250 | 100 | 100 | 100 | 100 |
| Cl− | 0–200 | 1,600 | 250 | 100 | 100 | 100 | 100 |
| Silica | 20–100 | 85 | 50 | 25 | 25 | 25 | 25 |
| Nitrate | – | 8 | – | – | – | – | – |
| . | Industry . | Boiler feed water pressure in atm. . | |||||
|---|---|---|---|---|---|---|---|
| Chemical constituent . | Paper . | Petroleum . | Fruit and vegetables . | Textile . | Low . | Intermediate . | High . |
| pH | – | 6.5–8.5 | – | – | – | – | |
| TDS | 200–500 | 3,500 | 500 | 100–200 | 700 | 500 | 200 |
| Hardness | 100–200 | 900 | 250 | 0–50 | 350 | 1 | 0.07 |
| HCO3− | – | – | 480 | – | 170 | 126 | 48 |
| Na+ + K+ | – | 230 | – | – | – | – | – |
| Ca2+ | – | – | 100 | – | – | – | – |
| Mg2+ | – | 85 | – | – | – | 0.25 | 0.01 |
| SO42− | – | 900 | 250 | 100 | 100 | 100 | 100 |
| Cl− | 0–200 | 1,600 | 250 | 100 | 100 | 100 | 100 |
| Silica | 20–100 | 85 | 50 | 25 | 25 | 25 | 25 |
| Nitrate | – | 8 | – | – | – | – | – |