FIGUEIRÊDO, G. J. A.; http://lattes.cnpq.br/7925646212142139; FIGUEIRÊDO, Gesivaldo Jesus Alves de.
Résumé:
The characteristics of the effluents from Wastewater Treatment Plants
(WTP)indicates that its outflow may cause problems for the environment, which is
why this paper proposes to develop alternative treatment technologies applied to the
reuse of these effluents. The study approaches alternative solutions towards the
proper management of local water resources, specifically for the use of the residual
water of the Gravatá WTP in irrigated agriculture. The development and application
of technologies were mediated by adsorption processes in batch and continuous flow
column,which used the dry biomass of aquatic plants (Salviniasp), shells of shellfish
(Anomalocardia brasiliana) and activated carbon from coconut shell as
adsorbentsubstrates.The wastewater available for reuse was first categorizedin order
to enable the subsequent methodological plan focused on a qualitative, quantitative,
investigative, correlative and significant study.The research found satisfactory results
for nitrate (NO3
-) and aluminum (Al+3) removal using separate and mixed substrates.
The kinetic and adsorption isotherm studies have proven the effectiveness of the
technology developedand applied to the treatment of wastewater of the Gravatá WTP
and its reuse in family farming.
