Humic substances in composted sewage sludge |
| |
| Institution: | 1. Department of Organic Resources, Centro de Edafologia y Biologia Aplicada del Segura, Apdo. 4195, Murcia, Spain;2. Instituto de Edafologia y Biologia Vegetal (C.S.LC.), Serrano, 116, 28006 Madrid, Spain;1. PhD student of Soil Science, Khouzestan Science and Research Branch, Islamic Azad University, Khuzestan, Iran;2. Department of Soil Science, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran;3. Assistant Professor of Soil and Water Research Institute (AREEO), Karaj, Iran;4. Associate Professor of Soil and Water Research Section, Qazvin Agricultural and Natural Resources Research and Education Center, Agricultural and Natural Resources Research Center, (AREEO), Qazvin, Iran;1. University of Life Sciences in Lublin, Faculty of Agrobioengineering, Department of Environmental Microbiology, Leszczyńskiego 7, 20-069, Lublin, Poland;2. Department of Environmental Chemistry, Faculty of Chemistry, 3 Maria Curie-Skłodowska Square, 20-031, Lublin, Poland |
| |
| Abstract: | Humic acids obtained from sewage sludge both before and after composting were characterized, and the influence of composting on the formation of more stable and polycondensed structures was studied. These humic acids showed an aliphatic character and although no great differences between humic acids from uncomposted and composted sewage sludge were observed, data from elemental analysis, E4/E5 ratio, filtration through Sephadex G-100 gel and infra-red spectra seemed to demonstrate that more polycondensed structures and hence a more stable organic matter, was obtained with the composting process. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
