摘要
由于水体中硝酸盐浓度过高,会危害人类健康和动物生命安全,所以根据糠醛渣的特性,通过改性制成吸附剂,来研究其对硝酸盐的吸附能力、吸附机理,及其吸附后残渣的资源化应用前景。试验结果表明,改性糠醛渣对硝酸盐有很强的吸附能力,其吸附能力是糠醛渣的52.6倍。同时改性糠醛渣接枝上了仲铵基,吸附剂残渣NMF接枝上了仲铵基和吸附有硝酸盐。吸附剂残渣NMF能促进作物生长,提高玉米生物量,最大增幅为30.5%;同时还能培肥地力,提高土壤有机质含量。
Because high nitrate concentration would be harmful to human and animal health,the adsorbent of modified furfural residue was used to study on the nitrate adsorptive capacity in water,adsorbing mechanism and the resource application prospect of its residue.The results showed that the modified furfural residue had high nitrate adsorptive capacity in water as 52.6 times as its furfural residue.The molecule frame for modified furfural residue and adsorbent residue NMF had secondary ammonium,moreover,the latter had adsorbed nitrate.The adsorbent residue NMF could promote maize growth and heighten its biomass to 30.5%,meanwhile,it could increase the OM content in soil.
出处
《环境科技》
2011年第2期20-24,共5页
Environmental Science and Technology
基金
国家"863"计划(2001AA246023)
广东省科技计划项目(A20405)
关键词
糠醛渣
硝酸盐
吸附剂
资源化
Furfural residue
Nitrate
Adsorbent
Resource
