Version 1
: Received: 6 March 2019 / Approved: 8 March 2019 / Online: 8 March 2019 (04:06:02 CET)
How to cite:
Nemati, S.; Samali, B.; Tahmoorian, F.; Mokhtarani, N.; Sanati, F. Nutrient Resources Recovery by a Creative Co-Composting Method of Municipal Solid Wastes and Wastewater Treatment Plant Sludge. Preprints2019, 2019030101. https://doi.org/10.20944/preprints201903.0101.v1
Nemati, S.; Samali, B.; Tahmoorian, F.; Mokhtarani, N.; Sanati, F. Nutrient Resources Recovery by a Creative Co-Composting Method of Municipal Solid Wastes and Wastewater Treatment Plant Sludge. Preprints 2019, 2019030101. https://doi.org/10.20944/preprints201903.0101.v1
Nemati, S.; Samali, B.; Tahmoorian, F.; Mokhtarani, N.; Sanati, F. Nutrient Resources Recovery by a Creative Co-Composting Method of Municipal Solid Wastes and Wastewater Treatment Plant Sludge. Preprints2019, 2019030101. https://doi.org/10.20944/preprints201903.0101.v1
APA Style
Nemati, S., Samali, B., Tahmoorian, F., Mokhtarani, N., & Sanati, F. (2019). Nutrient Resources Recovery by a Creative Co-Composting Method of Municipal Solid Wastes and Wastewater Treatment Plant Sludge. Preprints. https://doi.org/10.20944/preprints201903.0101.v1
Chicago/Turabian Style
Nemati, S., Nader Mokhtarani and Farshad Sanati. 2019 "Nutrient Resources Recovery by a Creative Co-Composting Method of Municipal Solid Wastes and Wastewater Treatment Plant Sludge" Preprints. https://doi.org/10.20944/preprints201903.0101.v1
Abstract
The purpose of this study is nutrient resources recovery by achieving the optimal chemical oxygen demand (COD) and carbon to nitrogen ratio (C/N) in co-composting wastewater treatment plant sludge with Municipal Solid Wastes (MSW). In this effort, the co-composting has been conducted in form of a case study in the northern region of Iran. In this research, 192 tests were carried out on four series of samples examined in terms of waste to sludge ratio, different aeration period, the percent of porous materials and the moisture content. This study was carried out at a temperature of 50 °C for a 15 day period by application of the in-vessel system and shows that the best ratio for waste to sludge is 2:1, while the 8 hour period is the best aeration period. The porous material which can be added to the composting process is limited to 15% in weight. In other words, any more or less amount of this material will adversely impact the process. Moreover, this research suggests that the sludge dewatering is not required in such processes. In Addition, the efficiency of both COD and C/N reductions equals to about 40%.
Keywords
nutrient resources recovery , chemical oxygen demand (COD), carbon to nitrogen ratio (C/N), co-composting, wastewater sludge, municipal solid wastes (MSW)
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.