| Autor: |
Jacob, Anish P., Soni, Praveen |
| Zdroj: |
Desalination & Water Treatment; 20240101, Issue: Preprints |
| Abstrakt: |
Tannery industries are an important partof India’s economy.India has huge production and consumption of footwear in the world.Leather goods and footwear exports in India were set to reach $5.26 billion in 2022-23[1].These tannery industries require 40m3 of fresh water per ton of raw material.The water released by these industries are highly contaminated with Cr(VI).Apart from tannery industries,other industrial processes like electroplating, pigmentation also release chromium into the environment. Cr(VI) has adverse effects on humans health, animals and plants. Bio-absorbents exhibit good absorption capacity for Cr(VI)[2]. Five different bio-adsorbentshave been used,which were collected from wastes.There is hardly any research that shows relation between percentage removal of chromium with respect to size of bio-adsorbents.This study is presented in the same direction. A stock solution was prepared in the laboratory that had similarityin chromium concentration withtannery effluent.Titration (quantitative analysis) was used.On comparison, it was found that pomegranate peel and water chestnut shell showed better Cr(VI) absorption capacity upto 97.83%.A schematic idea is proposed for the removal ofCr(VI) from drinking water used in rural areas. Economic analysis of the use of these bio-absorbents hasprovenitto be a better option for Cr(VI)capture. |
| Databáze: |
Supplemental Index |
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