Adsorption applied to the removal of ammonia from pre-treated piggery wastewater

Química Nova

Higarashi, Martha Mayumi¹  Mattei, Rosemari Martini¹  Kunz, Airton¹  Empresa Brasileira de Pesquisa Agropecuária, Concórdia, Brasil¹ 

关键词: swine wastewater;    nutrient adsorption;    zeolites.;   

DOI  :  10.1590/S0100-40422008000500043

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The aim of this work is to evaluate the use of natural zeolites to remove the NH4+ that remains in effluents from swine facilities which were submitted to physico-chemical and biological treatments. Experiments were made in batch made adding 5% (w/w) of adsorbent (0.6-1.3 and 3.0-8.0 mm) to synthetic and real swine facilities effluents. The results show that ammonium removal is influenced by adsorbent particle size and the presence of other ions in the effluent. The adsorption equilibrium was described by Langmuir as well as Freundlich isotherms and the kinetic data fitted well a pseudo-second order model.

【 授权许可】

Unknown