Publisher DOI: 10.2175/106143016X14733681695249
Title: Pretreatment of wastewater from licorice processing - A preliminary evaluation
Language: English
Authors: Ramaswami, Sreenivasan  
Behrendt, Joachim  
Gulyas, Holger 
Otterpohl, Ralf 
Keywords: Activated carbon adsorption;Activated sludge;Anaerobic digestion;Licorice-processing wastewater
Issue Date: 1-Nov-2016
Source: Water Environment Research 11 (88): 2032-2039 (2016-11-01)
Journal or Series Name: Water environment research 
Abstract (english): This study was performed as a preliminary investigation of anaerobic digestion and the activated sludge process as pretreatment options for highly loaded wastewater from licorice processing (approximately 8000 mg COD/L). Only 15% reduction of initial chemical oxygen demand (COD) was achieved by anaerobic digestion, whereas up to 80% reduction was attained with activated sludge process. Adsorption using powdered activated carbon (PAC) was studied for the removal of color and residual organics from the effluent of aerobic treatment. The combination of aerobic biological treatment with activated carbon adsorption offers a high-quality effluent, however only at very high carbon dosage (>2 kg PAC/m3).
ISSN: 1061-4303
Institute: Abwasserwirtschaft und Gewässerschutz B-2 
Type: (wissenschaftlicher) Artikel
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