title: Wastewater from wood and pulp industry treated by combination of coagulation, adsorption on modified clinoptilolite tuff and membrane processes.
abstract: Wastewater from the wood and pulp industry is of environmental concern. It contains high concentrations of organic and inorganic matter. In this work a combined method of coagulation, adsorption and nanofiltration/reverse osmosis (NF/RO) was investigated in the purification of biologically treated wastewater from wood processing. Coagulation with 0.8 g dm(-3) AlCl3 x 6H2O and adsorption on 2.5 g m(-3) modified clinoptilolite tuff resulted in removal efficiencies of total carbon (TC), total organic carbon (TOC) and inorganic carbon (IC) up to 67.1%, 77.4% and 49.5%, respectively. Almost complete removal of solutes was achieved after NF/RO treatment. The TOC removal efficiency with RO membrane (CPA-3, LFC-1, XLE) and tight NF membrane (NF90) was 98% and with highly porous NF membrane (DK), 88%. After the proposed treatment the purified water stream can be recycled into the process or safely disposed to the river.
authors.affiliation: UNESCO-IHE Institute for Water Education, PO Box 3015, 2601 DA Delft, The Netherlands. benna2@unesco-ihe.org
authors.forename: Yasmina
authors.initials: Y
authors.lastname: Bennani
authors.forename: Kresimir
authors.initials: K
authors.lastname: Kosutić
authors.forename: Emil
authors.initials: E
authors.lastname: Drazević
authors.forename: Mirela
authors.initials: M
authors.lastname: Rozeć
mesh_terms: D000077410:Aluminum Chloride; D017607:Aluminum Compounds / Q000737:chemistry; D002712:Chlorides / Q000737:chemistry; D005374:Filtration; D007220:Industrial Waste; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification; D014934:Wood; D017641:Zeolites / Q000737:chemistry*
chemical_list: D017607:Aluminum Compounds; D002712:Chlorides; D007220:Industrial Waste; D014874:Water Pollutants, Chemical; C083175:clinoptilolite; D017641:Zeolites; D000077410:Aluminum Chloride