immobilized on wood-husk showed the ability to detoxify Cr (VI) to Cr (III). Wood-husk, a
natural cellulose-based support material, packed in an upward-flow column was used as
support material for bacterial attachment. Around 97% of the Cr (VI) in wastewater
containing 15mgL− 1 of Cr (VI) was reduced at a flow rate of 8.0 mLmin− 1. The wastewater
containing Cr (VI) was added with liquid pineapple wastewater as nutrient source for the …