【论文】凹凸棒粘土在养殖废水处理中的应用研究.pdfVIP

毕业设计说明书（论文）中文摘要 本论文是以凹凸棒土和炉灰为原料，采用高温焙烧方法制备了凹土吸附剂。 以模拟养殖废水中氨氮去除率为考察指标，探讨了炉灰的添加量、不同焙烧温度、 焙烧时间等因素，对凹土吸附剂吸附性能的影响；用正交试验法对其制备工艺进 行优化，得出了凹土吸附剂的最佳制备条件：炉灰的添加量为 10%，焙烧温度为 500℃，焙烧时间为 1h；研究了凹土吸附剂用量、处理时间、废水的 pH 值、处理 温度等因素对养殖废水中氨氮去除率的影响；并用最佳制备条件制备的凹土吸附 剂处理了养殖废水，取得了很好的效果。 关键词 凹土吸附剂 , 焙烧 , 氨氮 , 去除率，吸附作用 毕业设计说明书（论文）外文摘要 Title Study on the Application of Attapulgite Clay in Aquaculture Wastewater Abstract In this paper, attapulgite clay and ashes were used as raw materials, produced attapulgite absorbent by high-temperature calcination. Taking the removal rate of ammonia nitrogen in simulated aquaculture wastewater as test indexes, discussed the influences of such factors as the quality of ashes added, calcination temperature, and calcination time on the adsorbent property of attapulgite clay absorbent. Optimizing the producing techniques with the orthogonal experiment, obtained the best producing conditions of attapulgite clay absorbent: the quality of ashes added is 10%, calcination temperature is 500 ℃, calcination time is 1h. Investigating the influences of such factors as the quality of attapulgite clay used, treatment time, treatment temperature, and pH value of wastewater on the removal rate of ammonia nitrogen in aquaculture wastewater. And got good results by using the attapulgite clay adsorbent, which was produced at the best producing conditions, to deal with aquaculture wastewater. Keywords attapulgite clay absorbent, calcination, ammonia nitrogen, removal rate, absorbing effect 淮阴工学院毕业论文 第 Ⅰ页 共 Ⅰ页 目 录 1 引言1 1.1 概述1 1.2 养殖废水中的主要污染物及对生态环境的影响2 1.3 养殖废水处理技术的研究进展2