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Adaptability of Teff husk activated carbon for removal of hexavalent chromium from tannery wastewater at optimized process condition
Applied Water Science ( IF 5.5 ) Pub Date : 2020-08-01 , DOI: 10.1007/s13201-020-01269-1 Tsegaye Adane , Awrajaw Dessie
Applied Water Science ( IF 5.5 ) Pub Date : 2020-08-01 , DOI: 10.1007/s13201-020-01269-1 Tsegaye Adane , Awrajaw Dessie
Tanneries are the major contributors to chromium pollution of the environment. Exposure to chromium (VI) can cause cancer, brain damage, central nervous dysfunction, blood composition damage; damage of lungs, kidneys, liver, and other vital organs. Although various studies have been done on the removal of Cr (VI) from synthetic wastewater, there is a lack of study in the adaptability of these methods in the treatment of real wastewater and expanding to the industrial application level. Therefore, the present study was aimed to examine the effectiveness of Teff husk activated carbon for the removal of Cr (VI) from tannery wastewater at optimized process conditions. The laboratory-based study was conducted to determine the Cr (VI) removal efficiency of Teff husk activated carbon from tannery wastewater. Data were entered and analyzed using SPSS version 20 statistical software. A paired sample t test was also used to test the presence of a significant difference in the mean concentration of Cr (VI) before and after treatment of the wastewater with Teff husk activated carbon. Then p value < 0.05 was considered as a cutoff point for the presence of a mean significant difference. The removal efficiency was found to be 89.5%. There was a significant difference in the mean concentration of Cr (VI) before and after treatment with Teff husk activated carbon with a = 956.899 and p value < 0.001. This implies the Teff husk activated carbon was an efficient adsorbent for removal of hexavalent chromium from real wastewater. Column adsorption needs to be studied in the future.
中文翻译:
Teff壳活性炭在优化工艺条件下去除制革废水中六价铬的适应性。
制革厂是造成环境铬污染的主要因素。接触六价铬会导致癌症,脑损伤,中枢神经功能障碍,血液成分受损;损害肺,肾,肝脏和其他重要器官。尽管已经进行了各种研究以去除合成废水中的Cr(VI),但是对于这些方法在处理实际废水中的适应性以及扩展到工业应用水平方面尚缺乏研究。因此,本研究旨在研究在优化的工艺条件下,Teff壳活性炭对制革废水中Cr(VI)的去除效果。进行了基于实验室的研究,以确定制革厂废水中Teff皮活性炭对Cr(VI)的去除效率。使用SPSS 20版统计软件输入数据并进行分析。配对样本t检验还用于测试在用特夫果壳活性炭处理废水之前和之后,平均铬(VI)浓度存在显着差异。然后,将p值<0.05视为存在平均显着性差异的临界点。发现去除效率为89.5%。Teff皮活性炭处理前后,Cr(VI)的平均浓度存在显着差异,a = 956.899,p值<0.001。这暗示着Teff壳活性炭是一种从真实废水中去除六价铬的有效吸附剂。将来需要对色谱柱吸附进行研究。
更新日期:2020-08-01
中文翻译:
Teff壳活性炭在优化工艺条件下去除制革废水中六价铬的适应性。
制革厂是造成环境铬污染的主要因素。接触六价铬会导致癌症,脑损伤,中枢神经功能障碍,血液成分受损;损害肺,肾,肝脏和其他重要器官。尽管已经进行了各种研究以去除合成废水中的Cr(VI),但是对于这些方法在处理实际废水中的适应性以及扩展到工业应用水平方面尚缺乏研究。因此,本研究旨在研究在优化的工艺条件下,Teff壳活性炭对制革废水中Cr(VI)的去除效果。进行了基于实验室的研究,以确定制革厂废水中Teff皮活性炭对Cr(VI)的去除效率。使用SPSS 20版统计软件输入数据并进行分析。配对样本t检验还用于测试在用特夫果壳活性炭处理废水之前和之后,平均铬(VI)浓度存在显着差异。然后,将p值<0.05视为存在平均显着性差异的临界点。发现去除效率为89.5%。Teff皮活性炭处理前后,Cr(VI)的平均浓度存在显着差异,a = 956.899,p值<0.001。这暗示着Teff壳活性炭是一种从真实废水中去除六价铬的有效吸附剂。将来需要对色谱柱吸附进行研究。