Furfural is a toxic aromatic aldehyde that can cause a severe environmental problem especially the wastewater drown from petroleum refinery units. In the present work. a useless by-product from local furniture manufacturing industry; sawdust was used as raw material for the preparation of activated carbon which is chemically activated with phosphoric acid. The effect of adsorption var... https://www.roneverhart.com/Singtronic-KS-2000DW-Professional-3000W-Vocalist-Floor-Standing-Karaoke-Speaker-System-Pair/