Journal
WASTE MANAGEMENT
Volume 48, Issue -, Pages 115-126Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2015.11.032
Keywords
Compost; Composted green waste; Green waste; Two-stage composting; Wood chips
Categories
Funding
- Fundamental Research Funds for the Central Universities [BLX2015-07]
- National Level Project Promotion of Forestry Scientific and Technological Achievements of the National Forestry Bureau [39]
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A recyclable organic bulking agent (BA) that can be screened and was developed to optimize green waste (GW) composting. This study investigated the use of wood chips (WC) (at 0%, 15%, and 25%) and/or composted green waste (CGW) (at 0%, 25%, and 35%) as the BAs in the two-stage composting of GW. The combined addition of WC and CGW improved the conditions of composting process and the quality of compost product in terms of composting temperature, porosity, water retention, particle-size distribution, pH, electrical conductivity (EC), cation exchange capacity (CEC), nitrogen losses, humification indices, microbial numbers, enzyme activities, macro- and micro-nutrient contents, and toxicity to germinating seeds. The compost matured in only 22 days with the optimized two-stage composting method rather than in the 90-270 days typically required for traditional composting. The optimal two-stage corn posting process and the best quality of compost product were obtained with the combined addition of 15% WC and 35% CGW. (C) 2015 Elsevier Ltd. All rights reserved.
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