Decontamination of Waste Water Polluted with Phenolic and Anilinic Compounds Using Plant Materials

식물체를 이용한 Phenol 및 Aniline성 폐수의 정화

  • Lee, Jung-Eun (Dept. of Agricultural Chemistry, Kyungpook National University) ;
  • Park, Jong-Woo (Dept. of Agricultural Chemistry, Kyungpook National University) ;
  • Kim, Jang-Eok (Dept. of Agricultural Chemistry, Kyungpook National University)
  • Published : 2000.09.30

Abstract

This study was carried out to estimate the possibility on the removal of phenols and anilines, which were contained in pulp or dye waste water, and the reusability of plant materials, shepherd's purse and turnip. Most of phenols catalyzed with shepherd's purse were removed more than 90% in the presence of $H_2O_2$, and the removal was ranged from 53.1% for 2,6-DMP to more than 99% for 2,4,6-TCP when turnip was used as catalysts. The removal of anilines catalyzed with shepherd's purse was ranged from 42.2% for 2-CA to 78.7% for 3,4-DCA in the presence of $H_2O_2$, and in case of turnip, from 31.5% for 2-CA to 90.0 % for 2,4-DCA. The reuse of plant materials was proved to be possible for not only the batch method but also the continuous method. No decreasing removal was observed during 30 cycles in waster water contaminated with 100ppm of 2,4-DCP. However, it was observed that the removal was decreased with increasing the number of cycles in higher concentration of 2,4-DCP(800ppm). Therefore, it could be suggested that the number of reusable cycles depends on the initial concentration of substrates.

Peroxidase 활성이 높은 식물체로 선발된 냉이와 순무를 이용하여 제지, 염료, 전자회사 등에서 배출되고 있는 폐수에 포함된 다양한 종류의 phenol 및 aniline 관련화합물들의 제거 가능성과 식물체의 재사용 가능성을 평가하였다. 식물체로서 냉이 뿌리를 처리하였을 경우 phenol성 물질들이 90%이상 제거되었으며, aniline성 화합물들은 2-CA의 42.2%에서 3,4-DCA의 78.7% 정도였다. 순무의 경우에는 phenol성 화합물들의 제거율은 2,6-DMP의 53.1%에서 2,4-DCP 및 2,4,6-TCP의 99% 이상의 범위였고, aniline성 화합물의 제거율은 2-CA의 31.5%에서 2,4-DCA의 90% 범위였다. 식물체의 재사용 실험에 있어서는 회분식뿐만 아니라 column을 이용한 연속식으로도 재사용이 가능함을 확인하였다. 100ppm의 2,4-DCP 용액에서 냉이 뿌리는 30회 반복 사용한 경우에도 활성을 잃지 않고 2,4-DCP에 대한 제거율 100%를 유지하였으나 상대적으로 고농도인 800ppm의 2,4-DCP를 이용한 실험에서 사용횟수가 증가함에 따라 제거율이 점차적으로 감소되는 경향을 나타내어 phenol 및 aniline성 폐수를 처리하는데 있어서 식물체의 재사용 횟수는 오염물질의 초기농도에 의존함을 확인할 수 있었다.

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