改性丝瓜络生物炭对染料吸附和好氧污泥颗粒化的影响。
Modified biochar prepared from Retinervus luffae fructus for dyes adsorption and aerobic sludge granulation.
机构信息
School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou, 310000, China.
School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou, 310000, China; Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, Hangzhou, 310023, China.
出版信息
Chemosphere. 2023 May;322:138088. doi: 10.1016/j.chemosphere.2023.138088. Epub 2023 Feb 6.
Retinervus luffae fructus biochar (RLFB) and ZnCl2 pretreated Retinervus luffae fructus biochar (ZRLFB) were prepared by pyrolysis. The as-prepared biochar was investigated for its applicability as a dye adsorber using sunset yellow (SY) and basic red 46 (BR46) dyes. Additionally, ZRLFB was used for the experimental cultivation of granular sludge. The results indicated that the adsorption effect of ZRLFB on the two dyes was higher than RLFB. The adsorption of RLFB to SY was related to the Langmuir and Freundlich models, whereas the adsorption of RLFB-BR46, ZRLFB-SY, and ZRLFB-BR46 was more in line with the Langmuir model. The adsorption process of dyes on two kinds of biochars can be described using pseudo-second-order mechanisms. The maximum adsorption capacity obtained was 1.9586 (RLFB-SY), 6.1286 (RLFB-BR46), 49.2611 (ZRLFB-SY), and 181.4882 mg g (RLFB-BR46). The result of the SBR operation showed that ZRLFB can potentially be applied as the core of aerobic granular sludge.
留兰香果实生物炭（RLFB）和氯化锌预处理留兰香果实生物炭（ZRLFB）是通过热解制备的。将制备的生物炭用于研究其作为日落黄（SY）和碱性红 46（BR46）染料吸附剂的适用性。此外，ZRLFB 还用于实验性培养颗粒污泥。结果表明，ZRLFB 对两种染料的吸附效果高于 RLFB。RLFB 对 SY 的吸附与 Langmuir 和 Freundlich 模型有关，而 RLFB-BR46、ZRLFB-SY 和 ZRLFB-BR46 的吸附更符合 Langmuir 模型。染料在两种生物炭上的吸附过程可以用拟二级动力学模型来描述。获得的最大吸附容量分别为 1.9586（RLFB-SY）、6.1286（RLFB-BR46）、49.2611（ZRLFB-SY）和 181.4882 mg g（RLFB-BR46）。SBR 运行结果表明，ZRLFB 有望作为好氧颗粒污泥的核心。
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