Resumo

ATAGUBA, C O  e  BRINK, I. Design and construction of laboratory-scale activated carbon, gravel and rice husk filter columns for the treatment of stormwater runoff from automobile workshops. J. S. Afr. Inst. Civ. Eng. [online]. 2021, vol.63, n.1, pp.61-66. ISSN 2309-8775.  http://dx.doi.org/10.17159/2309-8775/2021/v63n1a6.

The design and construction of low-cost laboratory-scale filter columns using locally available Nigerian filter materials - granular activated carbon (GAC), gravel (GR) and rice husk (RH) - were carried out and reported. The filter materials and columns were designed, constructed and used for the treatment of stormwater runoff from selected automobile workshops in Nigeria over a period of three rainy months. The combined granular activated carbon and rice husk filter systems performed best with pollutant removal efficiency of 58%. It was shown that the materials, considered as waste, could be recycled and used as filter materials in the treatment of stormwater from automobile workshops. This low-cost technology for stormwater runoff treatment, especially for automobile workshops at large scale and in-situ, can be further explored.

Palavras-chave : automobile workshop; filter media; pollution; stormwater runoff; treatment.

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