CAJ | 학술논문

以铁尾矿为主要原料,加入少量粉煤灰、煤矸石、石灰石及生物外加剂,制备铁尾矿陶粒滤料,并考察其对生活污水COD的去除效果。结果表明：在铁尾矿、粉煤灰、煤矸石、石灰石、生物外加剂分别占总物料量的86%、6%、4%、3%、1%,陶粒粒径为3~5 mm,焙烧温度为1100℃时,烧制的陶粒滤料对生活污水COD的去除率可达80%。 XRD和SEM分析表明,焙烧过程中产生的钠长石提高了陶粒的强度,同时陶粒表面粗糙、内部多孔、比表面积增大,因此具有良好的吸附性能,有利于生活污水中污染物的去除。
이철미광위주요원료,가입소량분매회、매안석、석회석급생물외가제,제비철미광도립려료,병고찰기대생활오수COD적거제효과。결과표명：재철미광、분매회、매안석、석회석、생물외가제분별점총물료량적86%、6%、4%、3%、1%,도립립경위3~5 mm,배소온도위1100℃시,소제적도립려료대생활오수COD적거제솔가체80%。 XRD화SEM분석표명,배소과정중산생적납장석제고료도립적강도,동시도립표면조조、내부다공、비표면적증대,인차구유량호적흡부성능,유리우생활오수중오염물적거제。
Ceramsite filter was prepared using iron tailings as main raw material,adding small amount of fly ash,coal gangue,limestone and admixture,and COD removal efficiency by ceramsite was investigated. Results indicated that:with the i-ron ore tailings,fly ash,coal gangue,limestone,biological mass percentage of 86%,6%,4%,3%,1%,respectively,ceramic diameter of 3~5 mm, roasting temperature of 1 100 ℃, the COD removal rate in domestic sewage by ceramsite can reach 80%. XRD and SEM analysis results indicated that:sodium feldspar generated during roasting increases the strength of ceram-site,at the same time, ceramsite has good adsorption performance for its rough surface, large amount of internal porous, and large specific surface area,which is helpful for pollutant removal in domestic sewage.