孔令营;尹志轩;何德明;刘长青;张国闽;

• 1:青岛理工大学环境与市政工程学院

摘要(Abstract)：

研究了对牛粪生物炭进行载镁改性并用于从废水中吸附去除磷酸盐，考察了磷酸盐初始质量浓度、生物炭投加量和溶液初始pH对磷酸盐吸附去除效果的影响；通过多种吸附模型对试验数据进行拟合并分析吸附机制。结果表明：牛粪生物炭通过载镁改性可显著提高吸附性能，其对磷酸盐的吸附量约为改性前的22倍；吸附效果受磷酸盐初始质量浓度和改性生物炭用量影响较大，可在较宽pH范围内保持较高吸附量；准二级动力学模型和Langmuir等温吸附模型可以更好地描述吸附过程，吸附过程主要为单分子层化学吸附；吸附过程吸热，升高温度有利于提高吸附效果。

关键词(KeyWords)： 牛粪;生物炭;载镁;改性;磷酸盐;吸附;废水

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2020YFD1100303);; 山东省重大科技创新工程项目(2018YFJH0902);; 山东省自然科学基金资助项目(ZR2019BEE028);; 青岛理工大学环境科学与工程一流学科开放课题(QUTSEME201929)

作者(Authors): 孔令营;尹志轩;何德明;刘长青;张国闽;

DOI: 10.13355/j.cnki.sfyj.2022.03.010

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