CAJ | 학술논문

研究了茶籽壳活性炭的制备条件及化学表面处理的方法与效果。活性炭制备条件包括二种不同活化剂的浓度、高温炭化时间和高温炭化温度。实验结果表明：选用60％的ZnCl2溶液为活化剂，低、高温炭化时间为3＋3 h，低、高温炭化温度为300＋600℃时，所制备的茶籽壳活性炭的比表面积为：1023．5 g／m2。用硝酸及氨水对所制得的活性炭进行表面处理，能有效提高其活性炭对重金属和贵金属的吸附能力。实验结果表明：用氨水处理的活性炭，对重金属铅的吸附量提高了约41％，对贵金属银的吸附量提高约27％；用硝酸处理的活性炭，对重金属铅的吸附量提高了约53％，对贵金属银的吸附量提高约41％。可用于重金属废水的处理及贵金属的吸附回收。
연구료다자각활성탄적제비조건급화학표면처리적방법여효과。활성탄제비조건포괄이충불동활화제적농도、고온탄화시간화고온탄화온도。실험결과표명：선용60％적ZnCl2용액위활화제，저、고온탄화시간위3＋3 h，저、고온탄화온도위300＋600℃시，소제비적다자각활성탄적비표면적위：1023．5 g／m2。용초산급안수대소제득적활성탄진행표면처리，능유효제고기활성탄대중금속화귀금속적흡부능력。실험결과표명：용안수처리적활성탄，대중금속연적흡부량제고료약41％，대귀금속은적흡부량제고약27％；용초산처리적활성탄，대중금속연적흡부량제고료약53％，대귀금속은적흡부량제고약41％。가용우중금속폐수적처리급귀금속적흡부회수。
Preparation conditions and surface treatment effect of the activated carbon for tea seed shell was studied. Parameters such as concentration of the activator, carbonization temperature and carbonization time were also studied.The result showed that the activator was 60% ZnCl2 solution, low and high temperature carbonization time were 3+3 h, low and high temperature carbonization temperature were 300+600 ℃, surface area of the activated carbon of tea seed shell was 1023.5 g/m2 .Adsorption ability for heavy metals and precious metals could be effectively improved that activated carbon was surface-treated with nitric acid and ammonia.The results showed that activated carbon treated with ammonia for the adsorption amount of Pb increased about 41%and the adsorption amount of Ag increased about 27%.Activated carbon treated with nitric acid for the adsorption amount of Pb increased about 53% and the adsorption amount of Ag increased about 41%.It could be used for treatment of heavy metal wastewater and adsorption recovery of precious metals.