Ozone pre-treatment of molasses-based biomethanated distillery wastewater for enhanced bio-composting
| Autor: | Sandeep N. Mudliar, Sameena N. Malik, Prakash C. Ghosh, Atul N. Vaidya |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
Ozone Microorganism 0208 environmental biotechnology Population 02 engineering and technology Wastewater 010501 environmental sciences Management Monitoring Policy and Law engineering.material 01 natural sciences chemistry.chemical_compound Molasses Organic matter education Waste Management and Disposal 0105 earth and related environmental sciences chemistry.chemical_classification education.field_of_study Moisture Compost Composting General Medicine Biodegradable waste Pulp and paper industry 020801 environmental engineering chemistry engineering Environmental science Oxidation-Reduction |
| Zdroj: | Journal of Environmental Management. 246:42-50 |
| ISSN: | 0301-4797 |
| Popis: | Composting is a biological process in which the organic matter is degraded by the mixed population of microorganisms in a moist aerobic environment to more stable and humidified end products. The composting process involves an interaction between the organic waste, microorganisms, moisture and oxygen. The molasses-based biomethanated distillery wastewater is presently effectively utilized with sugarcane pressmud through the composting process. The aim of present work was to evaluate the effect of ozone pretreatment on the rate of composting process and the quality of compost obtained. The GC-MS & FTIR analysis of ozone pretreated wastewater indicated the degradation and/or transformation of the organic compounds to simpler compounds present in the wastewater. Composting was performed by mixing fixed weight ratios of pressmud and different ratios of ozone pretreated wastewater (1:3, 1:4 and 1:5). The composting process was found to occur faster in the ozone pretreated wastewater for all the ratios as compared to the untreated wastewater. The final compost characteristics were found to be optimum for the 1:3 and 1:4 ratios of pressmud and wastewater. The bio-oxidative phase duration of composting has been reduced for the ozone pretreated wastewater. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect