Temporal variation of water quality and the performance of the filters utilized in drip irrigation

Revista Brasileira de Engenharia Agrícola e Ambiental

Airoldi, Rogério P. S.¹  Ribeiro, Túlio A. P.¹  Paterniani, José E. S.¹  Silva, Marcelo J. M. da² 

[1] UNICAMP, Campinas;UNICAMP

关键词: trickle irrigation;    chlorine;    clogging;    filtration;    non-woven synthetic fabric    INTRODUÇÃO O uso da irrigação localizada vem crescendo cada vez mais devido ao avanço tecnológico na agricultura irrigada que procura;    sempre;    métodos de irrigação que apresentem grande eficiência aliada à redução nos custos de produção e consumo de água e energia;   

DOI  :  10.1590/S1415-43662005000400002

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

An experimental investigation was accomplished in order to compare the performance of disc filters (130 microns) and non-woven synthetic fabric in the filtration of water, used in trickle irrigation systems, with chemical treatment. The temporal variation of the principal parameters of the irrigation water that cause obstruction problems in the emitters were also analyzed during the year: the fertirrigation technique was utilized with organic mineral fertilizer, and the chemical treatment was done with chlorine. The comparison between the two filter elements was done through the analysis of affluent and effluent. The results showed that only the chemical parameters: pH and total iron presented medium risk to obstruction. All the others parameters, resulted in values that did not present obstruction risk to the emitters. The fertilizer solution injection changed the water quality, due to the concentration of suspended solids and turbity. There was no difference in the performance disc filters (130 microns) and non-woven synthetic fabric, related to the physical and biological parameters of their effluent. The free chlorine concentration was higher in the filter disc effluent.

【 授权许可】

CC BY-NC