应用化学导论（Introduction to Applied Chemistry）.doc

应用化学导论（Introduction to Applied Chemistry） Introduction to applied chemistry,.Txt, its hard to love someone. Its harder to hate someone than to love and hate him. Love can never be a balance, want to be happy in love, you must be willing to grieve! Some troubles are invented by ourselves, but we accept them as real. Treatment of sulfur containing anions in industrial wastewater Zhang Gang should turn 0707 student number 200761211 Abstract With the rapid development of industry, the types and quantities of wastewater are increasing rapidly, and the pollution of water bodies is becoming more and more widespread and serious, threatening the health and safety of human beings. Among them, in electroplating, coking, metal smelting, tanning, dyeing, pesticide and other industrial waste water in a large number of thiocyanate, thiosulfate ions and anions of sulfur, the Sulfur Wastewater caused great pollution to the ecological environment, serious harm to the organisms life, therefore actively seeking effective removal methods imminent [1]. Treatment of industrial wastewater as early as at the end of nineteenth Century has already begun, and a large number of investigation and production practice in half a century later, but because of many components of industrial wastewater is complex, varied, there are still some technical problems have not been completely resolved. At present, the common treatment methods of sulfur containing wastewater are oxidation process (such as air oxidation, wet air oxidation, supercritical water oxidation), alkali absorption and precipitation [2]. The roasting product of layered hydroxide can be used as an adsorbent in the field of water treatment. Double metal oxides (LDO) are the calcination products of layered double hydroxides (LDH), which have a larger specific surface area than their precursors and have a memory effect. That is, in the water environment, the anions are reabsorbed to restore the original lamellar structure. So far, the study