The quality of dissolved organic matter extracted at different times from pig compost and its copper binding capacity based on EEM-PARAFAC
| Autor: | Xinxin Li, Zu-Liang Shi, Wang Jiuchen, Rongfeng Jiang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Swine
Health Toxicology and Mutagenesis 0211 other engineering and technologies 02 engineering and technology Spectral analysis 010501 environmental sciences engineering.material 01 natural sciences complex mixtures Humification Copper binding capacity Soil Copper binding Metals Heavy Dissolved organic carbon Animals GE1-350 Food science Compost tea Fertilizers Humic Substances 0105 earth and related environmental sciences 021110 strategic defence & security studies Compost Chemistry Composting Extraction (chemistry) fungi Public Health Environmental and Occupational Health General Medicine Pollution Manure Humus Extraction time Environmental sciences TD172-193.5 engineering Composition (visual arts) Environmental Pollution Copper |
| Zdroj: | Ecotoxicology and Environmental Safety, Vol 207, Iss, Pp 111545-(2021) |
| ISSN: | 1090-2414 |
| Popis: | Dissolved organic matter extracted from compost tea, can be regarded as alternatives to inorganic fertilizers as well to be used as a washing agent for heavy metal polluted soil. However, the composition and quality of compost tea produced under different extraction time are still unknown. The objective of the current study was set to explore the influence of different extraction time (i.e., 6, 12, and 24 h) on the composition, quality, and copper binding capacity of compost tea originated from pig manure compost. The results indicated that the extraction time obviously influenced the phenolic, aromatic carboxylic, and polycyclic aromatic groups of compost tea. In addition, the compost tea undergo the shorter extraction time (i.e., 6 and 12 h) contained more protein and humic-like compositions. Among the all treatments tested herein, the compost tea produced from 12 h extraction time obviously exhibited higher aromaticity, molecular weight, and humification degree than other two treatments. The highest stability constant value (log KM) was observed for the shortest extraction time, i.e., 6.08. According to the quality measures and copper binding capability, shorter extraction times (i.e., 6 and 12 h) would be suggested for compost tea production from pig manure compost. |
| Databáze: | OpenAIRE |
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