Sewage Sludge: a Fascinating Feedstock for Clean Energy
نویسندگان
چکیده
Sewage sludge is composed of organic and inorganic materials. The organic portion of the sludge is predominantly composed of C, H, ti, and S. On a dry-basis, the heating value of sludge is greater than that of oil shale or tar sand. The volatile matter content of dry sludge can be higher than that of the high volatile bituminous coal. Available correlations in the literature, developed for coals, were applied to predict the experimentally determined heating values. In addition, the sludge compositional data (C, H, S, and ash) were used to develop a new correlation specifically for raw sewage sludge. Compared to the models tested, the new correlation developed in this study for sewage sludge provided a better fit between the measured and predicted values.
منابع مشابه
Evaluation of Sewage Sludge for Incineration (Case study: Arak Wastewater Treatment Plant)
Sewage sludge treatment has become a primary subject in wastewater treatment and energy production. This paper aims to study the feasibility of power generation by incineration from sewage sludge enriched with impurities like heavy metals. For this purpose, we chose Arak wastewater treatment plant (AWWTP) and used calorific bomb test for examination. The experimental results showed that the hea...
متن کاملMunicipal Sewage Sludge to Biodiesel as a Promising Renewable Fuel for the Future of Energy
This article has no abstract.
متن کاملSewage Sludge Biochar: Physicochemical Properties and Fractionation of Zinc and Lead Metals
One of the significant factors affecting biochar properties is the pyrolysis temperature. This study aimed to investigate the effect of pyrolysis temperature on the properties and fractionation of Zn and Pb in biochars produced by sewage sludge. Biochars were prepared at temperatures of 300 to 700 °C and the physicochemical properties, availability, and fractionation of Zn and Pb were investiga...
متن کاملDirect liquid - liquid extraction of lipid from municipal sewage sludge for biodiesel 1 production 2 3
16 Municipal sludge from wastewater treatment plants is a promising lipid feedstock for 17 biodiesel production as it contains a significant amount of lipids. However, the energy 18 necessary to remove its high water content is a major inconvenience for scaling up 19 because of the high associated cost. In addition, the expensive conventional sludge 20 drying methods are not effective enough fo...
متن کاملStudy on the combined sewage sludge pyrolysis and gasification process: mass and energy balance.
A combined pyrolysis and gasification process for sewage sludge was studied in this paper for the purpose of its safe disposal with energy self-balance. Three sewage sludge samples with different dry basis lower heat values (LHV(db)) were used to evaluate the constraints on this combined process. Those samples were pre-dried and then pyrolysed within the temperature range of 400-550 degrees C. ...
متن کامل