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一、实验用品兰炭末、碱渣废水、电子天平、恒温振荡器、COD快速测定仪、循环水式真空泵、移液管(50 mL)、锥形瓶(250 mL)、烧杯(100 mL)、抽滤瓶、布氏漏斗、滤纸。二、实验原理实验采用以废治废的理念,选用兰炭末作为碱渣废水处理的吸附剂。碱渣一般为含有有机硫化物、酚、环烷酸等物质且具有高COD、黑褐色的废液。兰炭末是一种比表面积大、化学活性高、机械强度好、来源广泛、价格便宜的化工原料。利用兰炭末较好的吸附性,可对碱渣废水中的有机物、色素进行吸附,从而降低废水的COD和色度。本实验采用静态吸附方式。三、实验操作1.用电子天平分别称取10 g、20 g、30 g兰炭末置于编号
First, the experimental supplies blue charcoal, caustic soda wastewater, electronic balance, temperature oscillator, COD rapid detector, circulating water vacuum pump, pipette (50 mL), Erlenmeyer flask (250 mL), beaker (100 mL) , Suction filter bottle, Buchner funnel, filter paper. Second, the experimental principle The experiment used to waste treatment concept, the selection of the end of blue charcoal as residue treatment of adsorbent. Alkali residue is generally containing organic sulfur compounds, phenols, naphthenic acid and other substances with high COD, dark brown waste. Blue charcoal is a large surface area, high chemical activity, good mechanical strength, a wide range of sources, cheap chemical raw materials. The use of blue charcoal better adsorption, alkali residue wastewater in the organic matter, pigment adsorption, thereby reducing the COD and color of the wastewater. The experiment uses static adsorption method. Third, the experimental operation 1. Weigh electronic scales were 10 g, 20 g, 30 g blue carbon placed in the number