In light of the modern needs in mineral processing and extractive metallurgy, advanced knowledge about surface chemistry minerals is essential, especially their interactions with water. These are intimately related to several processes technology, such as flotation, wet grinding, dewatering, leaching. Hematite, goethite, quartz, kaolinite main iron ore circuits. Thus, understanding differences ...

Ground water and surface water create a range of problems in lignite mining utilizing surface mining methods. In order to create a safe and economic mining environment, it is essential to carry out mining after dewatering the rock mass surrounding the lignite mines by advance dewatering techniques. This paper briefly describes the ground water regimes including pressure gradients associated wit...

This paper critically reviews the fate of trace organic contaminants (TrOCs) in biosolids, with emphasis on identifying operation conditions that impact the accumulation of TrOCs in sludge during conventional wastewater and sludge treatment and assessing the technologies available for TrOC removal from biosolids. The fate of TrOCs during sludge thickening, stabilisation (e.g. aerobic digestion,...

Cellulose nanofibril (CNF) hybrid materials show great promise as sustainable alternatives to oil-based plastics owing their abundance and renewability. Nonetheless, despite the enormous success achieved in preparing CNF hybrids at laboratory scale, feasible implementation of these remains a major challenge due time-consuming energy-intensive extraction processing CNFs. Here, we describe scalab...

The foundation pit of Yamansu hydropower station has an average depth 70 m and been excavated with five-level slopes. Lowering groundwater level is important in excavation. In this study, drainage pumping were conducted dewatering. Pumping tests performed to reverse hydraulic parameters calibrate numerical models. Numerical simulations evaluate the dewatering scheme. first stage, powerhouse tai...

the paper presents the case study of the current formation of a brazilian pit lake from an iron ore mining activity. the water used for the filling of the lake comes from rain, ground water and the complementary pumpage from a close river. at its final stage, which will be reached around year 2018, lake aguas claras will have a surface area of 0.67 km2 and the depth of 234 m, which will make it...