Potensi Pemanfaatan Red mud Pulau Bintan

Red mud is a solid waste residue of the digestion of bauxite ores with caustic soda for alumina production. Bintan Island as one of the bauxite mines in Indonesia has a large red mud potential that can be utilized for research utilization. Red mud has a negative impact on the environment because the condition is alkaline, and in the form of fine-grained mud, and the amount is large enough. Over the last decade, research has been conducted to increase the added value of red mud. This journal explains briefly about the potential of red mud in order to be used as reference for red mud development in Bintan Island. Keywords: Red Mud, Bintan Island, Utilization Red mud adalah residu atau bahan buangan yang berasal dari pengolahan bauksit untuk produksi alumina. Pulau Bintan sebagai salah satu derah tambang Bauksit di Indonesia memiliki potensi red mud dalam jumlah besar yang dapat dimanfaatkan untuk penelitian pemanfaatannya. Red mud mud’dapat menimbulkan dampak negatif terhadap lingkungan karena kondisinya bersifat basa, dan dalam bentuk lumpur berbutiran halus, serta jumlahnya cukup besar. Selama dekade terakhir, telah dilakukan berbagai penelitian untuk meningkatkan nilai tambah red mud. Jurnal ini memaparkan secara singkat mengenai potensi red mud agar dapat dijadikan bahan referensi pengembangan red mud di pulau Bintan. Kata kunci: Red Mud, Pulau Bintan, Pemanfaatan

Aluminium wars will unfold between China and the West

Subject Competition moves downstream and into the arena of trade laws. Significance Aluminium is an industrial metal in wide use from cans to aeroplanes and electronics. As with most commodities, demand for the metal has been driven by China's growth and by its increased overall usage. China's aluminium production has grown rapidly since 1990, and competition with rival producers is now intensifying downstream in semi-finished products. Impacts Closures of bauxite mines and aluminium smelting capacity will occur mostly outside of China. Aluminium companies will shift business models to compete on downstream products. Chinese aluminium manufacturers will be scrutinised for potential 'dumping' practices.

Lateritic Plateaus in the Northern Western Ghats, India; a Review of Bauxite Mining Restoration Practices

The northern Western Ghats are characterised by plateaus and hilltop carapaces formed from ferricretes rich in aluminium ore. Ferricretes in Western Ghats are home to a high number of endemic species, many with extremely limited distribution. The heterogeneity of microhabitats on ferricretes supports a great diversity of plant and animal communities. With little overburden and a high percentage of recoverable metals they are targeted for mining which leads to removal of all soil, vegetation and microhabitats. Vegetation and faunal diversity of unmined sites from Kolhapur district were studied providing reference data used to discuss restoration efforts on two mined sites in the region. Restoration efforts have faced ecological and legal hurdles. The international literature for the restoration of bauxite mines fails to demonstrate any successful model to return the species assemblage to a pre-mining profile. Restoration practices fail to adequately replicate microhabitat heterogeneity; often restoring sites to a different ecosystem from the original. The present mining policies do not take cognizance of the special nature of plateau habitats, ecology or the ecosystem functions they provide. We suggest a moratorium on mining of the high level lateritic plateaus in Western Maharashtra is justified until the biodiversity value and ecosystem services of the sites are fully understood and can be weighed against the economic gains from mining.

Discussion on the Types Attribution and Comprehensive Utilization of High-Alumina Clay Ore

High-Alumina clay ore is the protective exploitation of mineral stipulated by the Ministry of Land and Resources. Due to its physicochemical properties and ore characteristics are quite different from current ore types --refractory clay mineral. It is usually taken as a general refractory clay mine of high-Alumina clay in practical applications, which leads to massive misuse and great waste of high-Alumina clay ore. This paper will redefine the attribuation of high-Alumina clay ore by analysing its differences and similarities with refractory clay minerals and bauxite mines in mineralogy, rock chemistry as well as physical structure, and present some advice on its comprehensive usage aiming at the existed problems in comprehensive development and utilization.