EFFECT OF POTASSIUM CONCENTRATION ON EFFICIENCY OF SEED EXTRACT MORINGA AS A COAGULATING AGENT

• Autor(a) principal: Matos, Mateus Pimentel de
• Data de Publicação: 2013
• Outros Autores: Ribeiro, Ivan Célio Andrade, Batista, Ana Paula da Silva, Silva, Edson Faria da
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Engenharia na Agricultura
• Texto Completo: https://periodicos.ufv.br/reveng/article/view/331
• topic: coagulação; dispersão; turbidez.

Studies indicate that salt solutions potentiate the coagulant power of the moringa (Moringa oleifera) seed extract and satisfactory results have been obtained when prepared in solutions of sodium chloride and calcium hydroxide. However, the presence of monovalent ions in wastewater may favor the dispersion of solids, preventing the formation of flocs and sedimentation of solids, reducing the efficiency of reduction in turbidity. It is known that the efluente from organic filters, for example generated when using sawdust as filtering material, and wastewaters such as that from the processing of the coffee fruit and vinasse, have high monovalent potassium ion concentrations. The presente study aimed to evaluate the efficiency of moringa seed extract as coagulant, in the removal of turbidity from water (turbidity 106 NTU) with potassium concentrations from 0 to 320 mg L-1. It was found that potassium, when presente in concentrations of up to 2 mg L-1, resulted in dispersive effects, but in higher concentrations greater coagulation efficiency of solids present, and consequently reduced water turbidity.