CAJ | 학술논문

随着工业化和城市化进程的加快，废水排放引起的水环境重金属污染问题越来越突出，去除污水中的重金属成为水环境保护的重要内容之一。本文选取活性炭与板栗壳作为吸附剂，研究在不同的时间及温度下，这2种吸附剂对废水中的Cu2+、Zn2+、Pb2+、Cd2+的吸附性能影响。研究发现，活性炭作为吸附剂时，Cu2+吸附量最大是在0.5 h时，Zn2+是在3 h时，Pb2+和Cd2+则是1 h时；用板栗壳吸附时，Cu2+和Pb2+吸附量最大在1 h，Zn2+是在1 h时，Cd2+则是0.5 h时。吸附剂为活性炭或板栗壳，温度对Zn2+的吸附率影响都不大；吸附Cu2+时，活性炭受温度的影响大于板栗壳，其吸附率随温度的升高而减小；Pb2+和Cd2+的吸附受温度影响明显，均是40℃时吸附率较高，但板栗壳>活性炭，且Cd2+>Pb2+。
수착공업화화성시화진정적가쾌，폐수배방인기적수배경중금속오염문제월래월돌출，거제오수중적중금속성위수배경보호적중요내용지일。본문선취활성탄여판률각작위흡부제，연구재불동적시간급온도하，저2충흡부제대폐수중적Cu2+、Zn2+、Pb2+、Cd2+적흡부성능영향。연구발현，활성탄작위흡부제시，Cu2+흡부량최대시재0.5 h시，Zn2+시재3 h시，Pb2+화Cd2+칙시1 h시；용판률각흡부시，Cu2+화Pb2+흡부량최대재1 h，Zn2+시재1 h시，Cd2+칙시0.5 h시。흡부제위활성탄혹판률각，온도대Zn2+적흡부솔영향도불대；흡부Cu2+시，활성탄수온도적영향대우판률각，기흡부솔수온도적승고이감소；Pb2+화Cd2+적흡부수온도영향명현，균시40℃시흡부솔교고，단판률각>활성탄，차Cd2+>Pb2+。
With the acceleration of the process of industrialization and urbanization, heavy metal pollution caused by wastewater discharge has became an increasingly prominent problem, and has proved to be one of the important content of water environment protection. This paper selected activated carbon and chestnut shell as adsorbent, researched their effects on Cu2+, Zn2+, Pb2+, Cd2+in wastewater at different times and temperatures. Results showed that adsorption quantity maximum of Cu2+happened at 0.5 h, Zn2+happened at 3 h, Pb2+and Cd2+happened at 1 h when activated carbon as adsorbent. Cu2+and Pb2+adsorption maximum happened at 1 h, Zn2+happened at 1 h, Cd2+happened at 0.5 h when chestnut shell as adsorbent. Regarding the influence of temperature, adsorbent for activated carbon or chestnut shell, the temperature had lit-tle effect on the rate of adsorption of Zn2+;when activated carbon as adsorbent, with temperature rise and the adsorption of Cu2+rate reduced and its effect was greater than chestnut shell. When temperature was 40℃,the adsorption rate of Pb2+and Cd2+were higher. The adsorption of chestnut shell was greater than activated carbon and Cd2+>Pb2+.