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张小宇, 张世熔, 王新月, 王亚婷, 李森, 王贵胤. 镧改性农业废弃秸秆对养殖废水中磷的去除[J]. 环境化学, 2021, (4): 1274-1284. doi: 10.7524/j.issn.0254-6108.2020072802
引用本文: 张小宇, 张世熔, 王新月, 王亚婷, 李森, 王贵胤. 镧改性农业废弃秸秆对养殖废水中磷的去除[J]. 环境化学, 2021, (4): 1274-1284. doi: 10.7524/j.issn.0254-6108.2020072802
shu
ZHANG Xiaoyu, ZHANG Shirong, WANG Xinyue, WANG Yating, LI Sen, WANG Guiyin. Removal of phosphorus from wastewater by lanthanum modified straws[J]. Environmental Chemistry, 2021, (4): 1274-1284. doi: 10.7524/j.issn.0254-6108.2020072802
Citation: ZHANG Xiaoyu, ZHANG Shirong, WANG Xinyue, WANG Yating, LI Sen, WANG Guiyin. Removal of phosphorus from wastewater by lanthanum modified straws[J]. Environmental Chemistry, 2021, (4): 1274-1284. doi: 10.7524/j.issn.0254-6108.2020072802
shu

镧改性农业废弃秸秆对养殖废水中磷的去除

  • 1. 四川农业大学环境学院, 成都, 611130;

  • 2. 成都市环境保护科学研究院, 成都, 610072;

  • 3. 四川省自然资源科学研究院, 成都, 610015

    • 通讯作者: 王贵胤, E-mail: wangguiyin@sicau.edu.cn
  • 基金项目:

    四川省国际科技创新合作/港澳台科技创新合作项目（2020YFH0159）资助.

Removal of phosphorus from wastewater by lanthanum modified straws

  • 1. College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China;

  • 2. Chengdu Academy of Environmental Sciences, Chengdu, 610072, China;

  • 3. Sichuan Provincial Institute of Natural Resource Sciences, Chengdu, 610015, China

    • Corresponding author: WANG Guiyin, wangguiyin@sicau.edu.cn
  • Fund Project: Supported by Sichuan Science and Technology Program(2020YFH0159).

  • 摘要: 为了有效去除养殖废水中磷，采用共沉淀法制备氢氧化镧改性的芝麻秆（La-SI）、茄子秆（La-SM）、蓬草秆（La-CC）和生姜秆（La-ZO），研究其对模拟废水中磷吸附行为和机制，同时探究对实际畜禽养殖废水中磷的去除性能.扫描电子显微镜（SEM）、X射线能谱分析仪（EDS）和傅里叶变换红外光谱仪（FT-IR）结果表明，镧成功负载到废弃秸秆上.La-SI、La-SM、La-CC和La-ZO对模拟废水中磷的吸附量随它们投加量增加而呈指数下降（P<0.05），其最大吸附量为25.73-52.00 mg·g-1；随初始pH的上升，La-SI、La-SM和La-CC对磷的吸附量呈下降趋势，而La-ZO则先上升后下降.Langmuir等温模型能够较好描述La-SM、La-CC和La-ZO对磷的吸附过程，而La-SI用Freundlich模型拟合更为合适.准二级动力学模型能够很好的描述4种材料对磷吸附过程.La-SI、La-SM、La-CC和La-ZO对模拟废水中磷的理论最大吸附量分别为32.63、28.55、26.39 mg·g-1和46.64 mg·g-1.在实际畜禽养殖废水中，La-SI、La-SM、La-CC和La-ZO对磷去除率均达90%以上，表明它们可作为养殖废水磷去除的候选材料.本研究结果将为畜禽养殖废水中磷去除及农业废弃秸秆的高效资源利用提供一定的参考依据.
    Abstract: In order to effectively remove and recover phosphorus from wastewater, lanthanum hydroxide modified Sesamum indicum (La-SI), Solanum melongena (La-SM), Conyza canadensis (La-CC) and Zingiber officinale (La-ZO) were prepared by coprecipitation method. The adsorption characteristics of phosphorus in simulated wastewater and swine wastewater were studied. The SEM-EDS(Scanning Electron Microscope and Energy Dispersive Spectrometer) and FT-IR(Fourier Transform Infrared Spectrometer) results showed that lanthanum hydroxide have been successfully loaded on the surfaces of four straws. The phosphorus adsorption capacity by the four lanthanum hydroxide modified straws decreased exponentially with the increase of their dosage (P<0.05), and the maximum adsorption capacity were 25.73-52.00 mg·g-1. With the pH values increasing, the phosphorus adsorption capacities of La-SI, La-SM and La-CC decreased, while La-ZO increased first and then decreased. The pseudo-second order kinetic model could be used to effectively describe the processes of kinetics. The Langmuir model could be used to effectively describe the isothermal adsorption of La-SM, La-CC and La-ZO. The Freundlich model is better to fit the adsorption isotherms of La-SI. The maximum phosphorus adsorption capacities of the four lanthanum hydroxide modified straws were 32.63,28.55,26.39 and 46.64 mg·g-1, respectively. In swine wastewater, the phosphorus removal rates by the four lanthanum hydroxide modified straws were above 90%, showing that they can be used as alternative materials for phosphorus removal in swine wastewater. The results of this study can provide references for the removal of phosphorus from wastewater and the recycling of waste straws.
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  • 收稿日期:  2020-07-28
张小宇, 张世熔, 王新月, 王亚婷, 李森, 王贵胤. 镧改性农业废弃秸秆对养殖废水中磷的去除[J]. 环境化学, 2021, (4): 1274-1284. doi: 10.7524/j.issn.0254-6108.2020072802
引用本文: 张小宇, 张世熔, 王新月, 王亚婷, 李森, 王贵胤. 镧改性农业废弃秸秆对养殖废水中磷的去除[J]. 环境化学, 2021, (4): 1274-1284. doi: 10.7524/j.issn.0254-6108.2020072802
shu
ZHANG Xiaoyu, ZHANG Shirong, WANG Xinyue, WANG Yating, LI Sen, WANG Guiyin. Removal of phosphorus from wastewater by lanthanum modified straws[J]. Environmental Chemistry, 2021, (4): 1274-1284. doi: 10.7524/j.issn.0254-6108.2020072802
Citation: ZHANG Xiaoyu, ZHANG Shirong, WANG Xinyue, WANG Yating, LI Sen, WANG Guiyin. Removal of phosphorus from wastewater by lanthanum modified straws[J]. Environmental Chemistry, 2021, (4): 1274-1284. doi: 10.7524/j.issn.0254-6108.2020072802
shu

镧改性农业废弃秸秆对养殖废水中磷的去除

    通讯作者: 王贵胤, E-mail: wangguiyin@sicau.edu.cn
  • 1. 四川农业大学环境学院, 成都, 611130;
  • 2. 成都市环境保护科学研究院, 成都, 610072;
  • 3. 四川省自然资源科学研究院, 成都, 610015
  • 收稿日期:  2020-07-28
基金项目:

四川省国际科技创新合作/港澳台科技创新合作项目（2020YFH0159）资助.

摘要: 为了有效去除养殖废水中磷，采用共沉淀法制备氢氧化镧改性的芝麻秆（La-SI）、茄子秆（La-SM）、蓬草秆（La-CC）和生姜秆（La-ZO），研究其对模拟废水中磷吸附行为和机制，同时探究对实际畜禽养殖废水中磷的去除性能.扫描电子显微镜（SEM）、X射线能谱分析仪（EDS）和傅里叶变换红外光谱仪（FT-IR）结果表明，镧成功负载到废弃秸秆上.La-SI、La-SM、La-CC和La-ZO对模拟废水中磷的吸附量随它们投加量增加而呈指数下降（P<0.05），其最大吸附量为25.73-52.00 mg·g-1；随初始pH的上升，La-SI、La-SM和La-CC对磷的吸附量呈下降趋势，而La-ZO则先上升后下降.Langmuir等温模型能够较好描述La-SM、La-CC和La-ZO对磷的吸附过程，而La-SI用Freundlich模型拟合更为合适.准二级动力学模型能够很好的描述4种材料对磷吸附过程.La-SI、La-SM、La-CC和La-ZO对模拟废水中磷的理论最大吸附量分别为32.63、28.55、26.39 mg·g-1和46.64 mg·g-1.在实际畜禽养殖废水中，La-SI、La-SM、La-CC和La-ZO对磷去除率均达90%以上，表明它们可作为养殖废水磷去除的候选材料.本研究结果将为畜禽养殖废水中磷去除及农业废弃秸秆的高效资源利用提供一定的参考依据.

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