کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
685821 | 889051 | 2008 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: High-rate composting of barley dregs with sewage sludge in a pilot scale bioreactor High-rate composting of barley dregs with sewage sludge in a pilot scale bioreactor](/preview/png/685821.png)
The feasibility of high-rate composting of barley dregs and sewage sludge was examined using a pilot scale bioreactor. A central composite design (CCD) was used to optimize the mix ratio of barley dregs/sewage sludge and moisture content. The performance of the bioreactor was monitored as a function of carbon decomposition rate (CDR) and total volatile solids (TVS) loss rate. The optimum range of mix ratio and moisture content was found to be 35–40% and 55–60%, respectively. High CO2 evolution rate (CER) and TVS loss rate were observed after 3 days of the composting and the compost was matured/stable after 7 days. Cardinal temperature model with inflection (CTMI) was used to analyze the compost stability with respect to CER as a parameter of composting efficiency. After examining the phytotoxicity, the compost can be promoted for land application.
Journal: Bioresource Technology - Volume 99, Issue 7, May 2008, Pages 2210–2217