| Autor: |
Tanksali, Anuradha S., Nagalakshmi, N. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 2978 Issue 1, p1-9, 9p |
| Abstrakt: |
The rapid expansion of electroplating industries in the developing countries have led to the enormous discharge օf harmful and tօxic wastewater in the environment, endangering the ecosystem. Electrօplating Industry wastewater forms a complex mixture of various ions like Chromium, Nickel and Copper. These hazardous heavy metals are carcinogenic and leads to severe health issues in humans and are highly toxic to aquatic life. When the improperly treated wastewater is discharged on land for irrigation, it accumulates and leads to adverse effects. The heavy metals present in the waste water of Electroplating industry can be extracted by various treatment options but the main disadvantages of the most of the treatment methods are the maintenance cost. In this work, activated finger millet grass (Eleusine coracana) is used as an bioadsorbent for removal of heavy metals through a low-cost adsorption method. The maximum Copper removal efficiency of 82.86% was observed at a pH օf 7, a time of contact of 35 minutes and with a dosage of 2.3 gm/ml. Similarly the maximum Chromium removal efficiency of 90.47% was noted at a pH օf 8, 25 minutes of contact time and with a dosage of 2.4 gm/ml. The maximum removal efficiency obtained has reduced the concentration of Copper and Chromium to 3.01mg/l and 2.11mg/l respectively, which are well within the prescribed standard BIS limits. Hence the adsorption method using Finger millet as a adsorbent is a feasible method for removal of Copper and Chromium (heavy metals) from Electroplating industry waste water. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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