Composting of smuggled cigarettes tobacco and industrial sewage sludge in reactors: Physicochemical, phytotoxic and spectroscopic study
| Autor: | Cleber Pinto da Silva, Ruben Auccaise Estrada, Cinthia Eloise Domingues, Sandro Xavier de Campos, Rosimara Zittel, Daniele Cristina Hass Seremeta |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Sewage
Compost Composting chemistry.chemical_element 04 agricultural and veterinary sciences Tobacco Products 010501 environmental sciences Carbon-13 NMR engineering.material Pulp and paper industry 01 natural sciences Humus Soil chemistry Germination Tobacco 040103 agronomy & agriculture Cation-exchange capacity engineering 0401 agriculture forestry and fisheries Waste Management and Disposal Inorganic nitrogen Carbon Sludge 0105 earth and related environmental sciences |
| Zdroj: | Waste management (New York, N.Y.). 79 |
| ISSN: | 1879-2456 |
| Popis: | The maturity of smuggled cigarette tobacco (SCT) and industrial sewage sludge (ISS) compost during composting in reactors was evaluated through physicochemical, phytotoxic and spectroscopic parameters. The temperatures reached peaks above 52 °C in the three reactors and were enough to achieve the stability of the compounds. The electric conductivity was in the optimal interval for farming uses and the pH alkaline band was favorable to produce inorganic nitrogen. The reduction in the C∕N ratio and the increase in cation exchange capacity (CEC) indicated an increase in the compost humification. After 120 days, the seed germination index (SGI) reached 95 % in reactor 3. In the three treatments, the reduction in E2/E6 and E4/E6 ratios (UV/Vis), the increase in humification indices, obtained through FTIR and the aromatic carbon resonance (13C NMR) indicated a high degree of aromaticity. The composting process in reactors was efficient to degrade different proportions of SCT and ISS, resulting in mature composts. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect