Journal of Ecology and Rural Environment ›› 2015, Vol. 31 ›› Issue (1): 106-111.doi: 10.11934/j.issn.1673-4831.2015.01.016
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REN Zi-Hang, MA Xiu-Lan, WANG Er-Li, LI Meng-Yuan
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Abstract: In order to explore effects of different humus components on loss of adsorptive ammonia-nitrogen, characteristics of the enrichment of ammonia-nitrogen by different organo–mineral complexes, components of humus were investigated through a batch experiment of equilibrium adsorption. Results indicate that in terms of ammonia-nitrogenenrichment coefficient, the organo-kaolinite complexes in humus displayed an order of humic acid–Kaolinite > humin–Kaolinite > fulvic acid –Kaolinite, being 1.26, 1.14 and 1.01, respectively; and the organo-Montmorillonite complexes did an order of humic acid–Montmorillonite > humin–Montmorillonite > fulvic acid–Montmorillonite, being 1.22, 1.13 and 1.03, respectively. The adsorption of filling of ammonia-nitrogen into pores existing in the glassy colloids cementing humic acids and humin, rated as hard carbon, is the major cause leading to higher ammonia-nitrogen enrichment coefficient of humic and fulvic acids-mineral complexes.
Key words: humus component, organo–mineral complex, ammonia-nitrogen, sorption capacity, enrichment coefficient
CLC Number:
X131.3
REN Zi-Hang, MA Xiu-Lan, WANG Er-Li, LI Meng-Yuan. Enrichment of Ammonia-Nitrogen by Different Organo–Mineral Complexes in Humus[J]. Journal of Ecology and Rural Environment, 2015, 31(1): 106-111.
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URL: http://www.ere.ac.cn/EN/10.11934/j.issn.1673-4831.2015.01.016
http://www.ere.ac.cn/EN/Y2015/V31/I1/106