文献类型：期刊文献

中文题名：改性牡蛎壳对废水中磷吸附性能的研究

英文题名：Adsorption of phosphorus from wastewater by modified oyster shells

作者：赵娟[1];李远文[1];杨耐德[1];余江[1];王贵[1]

机构：[1]广东海洋大学工程学院,湛江524088

年份：2014

卷号：42

期号：3

起止页码：154

中文期刊名：化工新型材料

外文期刊名：New Chemical Materials

收录：北大核心2011、北大核心、CSCD、CSCD2013_2014

基金：广东省科技计划项目(2011B031200007);广东省科技计划项目(2012B010500026)

语种：中文

中文关键词：牡蛎壳;吸附;磷;煅烧

外文关键词：oyster shell, phosphorus, adsorption, pyrolysis

中文摘要：采用高温煅烧对天然牡蛎壳进行改性处理，并初步研究了天然牡蛎壳和经过不同煅烧温度处理后的牡蛎壳样品对废水中磷的吸附作用。采用TGA-DTA、XRD、SEM分别对天然牡蛎壳的热分解历程和不同温度烧结后所得的改性牡蛎壳的相组成和微观结构进行研究。结果表明：在相同的条件下，天然牡蛎壳粉对废水中磷的吸附效果较差；牡蛎壳经过650-800℃煅烧处理后，其对废水中磷的吸附性能明显提高。当煅烧温度为750℃时，牡蛎壳煅烧物对废水中磷的去除率可以达到99％。因此牡蛎壳经过750℃煅烧处理后，是一种固磷性能较好的新型钙基除磷剂。

外文摘要：Raw oyster shells were modified with different temperatures of calcinations, the phosphorus adsorption capacities of raw oyster shells and modified waste oyster shells were studied. The thermal decomposition of the raw oyster shell was studied by TGA-DTA. The phase transformation and microstrueture of raw oyster shells calcined at diferent tem- perature were studied by X-raydiffraction（XRD）and SEM. It indicated that oyster shells pyrolysed at 650℃-800℃ was ef- fective in removing phosphorus pollutant. In comparison, raw oyster shells removed a inferior phosphate from wastewater, whereas pyrolysis of waste oyster shells under 750℃ transformed this material into a sustainable reagent for efficient（up to 99 %）removal of phosphates from wastewater. It proved that the oyster shells pyrolysed at 750℃ could be used as adsor- bent to remove phosphorus pollution.