Pretreatment of Wastewater from Licorice Processing—A Preliminary Evaluation
| Autor: | Ralf Otterpohl, Sreenivasan Ramaswami, Holger Gulyas, Joachim Behrendt |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Powdered activated carbon treatment
Industrial Waste Wastewater 01 natural sciences Bioreactors Oxygen Consumption Adsorption Glycyrrhiza medicine Food Industry Environmental Chemistry Waste Management and Disposal Effluent Water Science and Technology Molecular Structure 010405 organic chemistry Chemistry Ecological Modeling Chemical oxygen demand Pulp and paper industry Pollution 0104 chemical sciences 010404 medicinal & biomolecular chemistry Anaerobic digestion Activated sludge Water Pollutants Chemical Activated carbon medicine.drug |
| Zdroj: | Water Environment Research. 88:2032-2039 |
| ISSN: | 1554-7531 1061-4303 |
| Popis: | 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). |
| Databáze: | OpenAIRE |
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