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Removal of thiocyanate (SCN-), which is widely used in many industrial processes is of concern due to this toxicity. In this work, the potential of polyaniline-coated charcoal ash (PANI-CCA) as a low-cost and efficient adsorbent was evaluated in order to remove thiocyanate ions from aqueous solution. Morphologies and chemical composition of the PANI-CCAhave been examined by using scanning electron microscopy and X-ray fluorescence spectrometry (XRD). Batch experiments were performed to examine the effects of operating conditions such as pH (6.0-10.0), ash dosage (0-0.30 g/50 ml), initial dye c ...Более
From the earliest archaeological investigations along Central Asia's Tien Shan range, researchers have noted the diversity of highland communities and their participation in complex subsistence, exchange, and political systems. However, landscape archaeological approaches that might address socio-economic integrations have been limited by discontinuous, sometimes skewed datasets. Here, we present the results of UAV-based survey at Kok-Sai, an upland alluvial slope in the Kochkor Valley of north-central Kyrgyzstan, in which we identified more than 900 archaeological features in a 380 ha study a ...Более