| Autor: |
Nachiappan, Sivakamasundari, Thamodharan, Mathaven Pillai, Samuel, Darren Jensen Thamba, Anand, Karthikeyan |
| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 3192 Issue 1, p1-7, 7p |
| Abstrakt: |
Bottom slag is a waste product generated from thermal power plants after burning lignitein the boilers due to impurities / mineral matter present in lignite, it is being dumped at Mine –II back-filled area. The physical appearance is black to brown coloured – coarse to fine sand sized particles. Chemically, it contains large amount of silica, alumina, iron oxide and sulphates. Because of the sulphates, sulphuric acid is generated and the material becomes highly acidic. In Neyveli thermalpower station on an average 250 – 300 tonnes of bottom slag is being produced everyday and the same is transported to mines backfilled areas for dumping. Eco – friendly way of disposal or utilization of bottom slag has been a challenging task to thermal power stations. The slag dumps are highly acidic contains more soluble salts, similar to the situation in ash pond. Hence, voluntary vegetation is not possible. Considering the physico – chemical nature of the bottom slag, several attempts were made in the past to utilize them effectively. It becomes essential to develop a suitable technology as being done for minespoils, ash ponds to develop green cover on slag dumps. Centre for Applied Research and Development CARD/NLC and Afforestation division / Mine-II /NLC have jointly taken up the above study at Mine-II slag dump area. This paper deals with reclamation techniques adopted to develop green cover in slag dump areas of Mine-II. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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