E.A. SARITHA , R. ANAND, S. SUJA AND K. SWAMINATHAN
Abstract
The phytotoxicity of the dyeing industry effluent treated with autoclaved Aspergillus variecolor in various bioreactors (stirred tank, fluidized bed and packed bed column) was tested against Zea mays (maize). The toxicity parameters studied were per cent seed germination, seedling development, vigour index, per cent phytotoxicity and effluent tolerant index. The results revealed that the treatment in stirred tank reactors followed by sand filtration could considerably decrease the effluent toxicity and the treated effluent could be used for irrigation purposes after proper dilution.