摘要
集中型沼液由于含有较丰富的有机营养成分,COD负荷较高。为了寻找高效COD吸附基质,以天然斜发沸石(TRF)、微波与氯化钠联合改性沸石(WLF)、CPB改性沸石(CPBF)、微米级(WF)以及亚微米级(YWF)两种粉煤灰合成沸石为研究对象,对沼液COD的热力学吸附解吸进行研究。结果表明,与其他4种沸石材料相比,CPBF具有更高的COD吸附量和吸附速率以及更低的解吸率,因此具有较大的沼液COD吸附优势,是优良的吸附材料。
The COD was high in concentric biogas slurry which contained plenty of organic nutrients.To search for excellent COD adsorption substrates,both the thermo-dynamics adsorption-desorption characteristics of COD by five common substrates（Natural zeolite（TRF）,microwave-sodium chloride modified zeolite（WLF）,cetylpyridinium Bromize modified zeolite（CPBF）,micro-sized zeolite（WF）and submicro-sized zeolite（YWF）synthesized from coal fly ash） were illustrated in laboratory.The results indicated that CPBF had higher adsorption capacities and velocities of COD and lower COD desorption efficiencie than other zeolite substrates which means it could be excellent COD adsorption substrate.
出处
《农机化研究》
北大核心
2013年第11期227-230,共4页
Journal of Agricultural Mechanization Research
基金
"十一五"国家科技支撑计划项目(2010BAD03B03)
关键词
沼液
COD
沸石
吸附
解吸
biogas slurry
COD
zeolite
adsorption
desorption
