Rahman Ari, Kishimoto Naoyuki, Urabe Takeo, Ikeda Kazuki
Graduate School of Science and Technology, Department of Environmental Solution Technology, Ryukoku University, 1-5 Yokotani, Seta Oe-cho, Otsu-shi, Shiga Prefecture 520-2194, Japan E-mail:
Faculty of Science and Technology, Department of Environmental Solution Technology, Ryukoku University, 1-5 Yokotani, Seta Oe-cho, Otsu-shi, Shiga Prefecture 520-2194, Japan.
Water Sci Technol. 2017 Dec;76(11-12):3126-3134. doi: 10.2166/wst.2017.381.
Colored effluent and a large amount of sludge are major pollutant sources derived from textile industry activity. In this research, the idea for converting textile sludge into a potential adsorbent was conducted through a carbonization process in order to solve the colored effluent problem. Textile sludge was carbonized at a temperature ranging from 400 to 800 °C in the absence of oxygen. Maximum adsorption capacity of carbonized sludge for methylene blue removal reached 60.30 mg/g when the sludge was carbonized at 600 °C with specific surface area of 138.9 m/g and no significant alteration was observed until 800 °C. Experimental research by using a real wastewater also showed that there was almost no disruption during adsorption of methylene blue into surface of carbonized sludge. While reactivation process revealed that the regeneration of carbonized sludge was applicable by secondary heating at the same carbonization temperature. Furthermore, the application of this research demonstrated that the carbonized textile sludge was a good adsorbent for methylene blue removal and had a capability to be reactivated.
有色废水和大量污泥是纺织工业活动产生的主要污染源。在本研究中，为了解决有色废水问题，通过碳化过程将纺织污泥转化为潜在吸附剂的想法得以实施。纺织污泥在无氧条件下于400至800°C的温度范围内进行碳化。当污泥在600°C碳化，比表面积为138.9 m/g时，碳化污泥对亚甲基蓝的最大吸附容量达到60.30 mg/g，直至800°C均未观察到明显变化。使用实际废水进行的实验研究还表明，亚甲基蓝吸附到碳化污泥表面的过程中几乎没有干扰。而再生过程表明，在相同碳化温度下二次加热可实现碳化污泥的再生。此外，本研究的应用表明，碳化纺织污泥是去除亚甲基蓝的良好吸附剂，并且具有可再生活化的能力。
