Jiachen Chen, Ze Zhong, Weilin Chen, Jie Zhu, Kai Luo, Jie Zhang, Yuqi Li
{"title":"高锰酸钾改性中药渣高效脱除废水中的铵、磷。","authors":"Jiachen Chen, Ze Zhong, Weilin Chen, Jie Zhu, Kai Luo, Jie Zhang, Yuqi Li","doi":"10.1007/s10661-025-14283-0","DOIUrl":null,"url":null,"abstract":"<div><p>The disposal of Chinese medicine residues has become a pressing environmental issue in China due to the rapid expansion of the Chinese medicine industry. This study investigated the removal of ammonium and phosphate from wastewater by the use of potassium permanganate (KMnO<sub>4</sub>)-modified Chinese medicine residues. The results showed that the adsorption capacity of the KMnO<sub>4</sub>-modified residues (MR) for nitrogen and phosphorus was significantly enhanced, which was 1.23 and 1.27 times higher than that of unmodified residue (UR). Bohm titration showed a twofold increase in carboxyl groups, while FT-IR and BET analyses indicated the formation of Mn–O compounds on the MR surface, which increased the specific surface area and pore volume by approximately 6 and 16 times, respectively, compared to UR. Furthermore, the adsorption behavior of MR follows a pseudo-second-order kinetic model and fits the Langmuir isotherm model. These findings open a new window for resource utilization of Chinese medicine residues and the protection of the environment.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 7","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Efficient removal of ammonium and phosphorus from wastewater via potassium permanganate-modified Chinese medicine residues\",\"authors\":\"Jiachen Chen, Ze Zhong, Weilin Chen, Jie Zhu, Kai Luo, Jie Zhang, Yuqi Li\",\"doi\":\"10.1007/s10661-025-14283-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The disposal of Chinese medicine residues has become a pressing environmental issue in China due to the rapid expansion of the Chinese medicine industry. This study investigated the removal of ammonium and phosphate from wastewater by the use of potassium permanganate (KMnO<sub>4</sub>)-modified Chinese medicine residues. The results showed that the adsorption capacity of the KMnO<sub>4</sub>-modified residues (MR) for nitrogen and phosphorus was significantly enhanced, which was 1.23 and 1.27 times higher than that of unmodified residue (UR). Bohm titration showed a twofold increase in carboxyl groups, while FT-IR and BET analyses indicated the formation of Mn–O compounds on the MR surface, which increased the specific surface area and pore volume by approximately 6 and 16 times, respectively, compared to UR. Furthermore, the adsorption behavior of MR follows a pseudo-second-order kinetic model and fits the Langmuir isotherm model. These findings open a new window for resource utilization of Chinese medicine residues and the protection of the environment.</p></div>\",\"PeriodicalId\":544,\"journal\":{\"name\":\"Environmental Monitoring and Assessment\",\"volume\":\"197 7\",\"pages\":\"\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Monitoring and Assessment\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10661-025-14283-0\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Monitoring and Assessment","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s10661-025-14283-0","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Efficient removal of ammonium and phosphorus from wastewater via potassium permanganate-modified Chinese medicine residues
The disposal of Chinese medicine residues has become a pressing environmental issue in China due to the rapid expansion of the Chinese medicine industry. This study investigated the removal of ammonium and phosphate from wastewater by the use of potassium permanganate (KMnO4)-modified Chinese medicine residues. The results showed that the adsorption capacity of the KMnO4-modified residues (MR) for nitrogen and phosphorus was significantly enhanced, which was 1.23 and 1.27 times higher than that of unmodified residue (UR). Bohm titration showed a twofold increase in carboxyl groups, while FT-IR and BET analyses indicated the formation of Mn–O compounds on the MR surface, which increased the specific surface area and pore volume by approximately 6 and 16 times, respectively, compared to UR. Furthermore, the adsorption behavior of MR follows a pseudo-second-order kinetic model and fits the Langmuir isotherm model. These findings open a new window for resource utilization of Chinese medicine residues and the protection of the environment.
期刊介绍：
Environmental Monitoring and Assessment emphasizes technical developments and data arising from environmental monitoring and assessment, the use of scientific principles in the design of monitoring systems at the local, regional and global scales, and the use of monitoring data in assessing the consequences of natural resource management actions and pollution risks to man and the environment.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
