Onsite source separation and synergistic treatment of household food waste into wastewater
| Autor: | Ao Li, Jean Joël Roland Kinhoun, Shangyi Shu, Shikun Zhu, Tingting Qian |
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| Rok vydání: | 2021 |
| Předmět: |
Toilet
Waste management Filtration and Separation 02 engineering and technology 021001 nanoscience & nanotechnology Analytical Chemistry Ammonia nitrogen Food waste 020401 chemical engineering Wastewater Sewerage Source separation Environmental science Process optimization Sewage treatment 0204 chemical engineering 0210 nano-technology |
| Zdroj: | Separation and Purification Technology. 262:118337 |
| ISSN: | 1383-5866 |
| DOI: | 10.1016/j.seppur.2021.118337 |
| Popis: | In a previous study, we advanced an onsite source separation and synergistic treatment (O3ST) technology for household sewerage and showed its advantages in rural wastewater treatment. This study further put forward an assumption to extend the application of O3ST to the household food waste (FW) treatment, namely shredding FW, collecting it together with toilet wastewater (TW) and then treating them synergistically with source-separated washing wastewater. For the purpose of inspecting the technological feasibility, an experimental system was set up and run for 220 days. The results showed that the COD, total ammonia nitrogen, and TN removal efficiency was 93.8%, 92.5%, and 73.0% respectively, which proved the feasibility. The combined collection of TW and FW is conducive to the spontaneous realization of simultaneous nitrification and denitrification in the wastewater treatment process, and the simultaneous reaction efficiency was 71.1%. This study also obtained some useful information for the subsequent process optimization and engineering. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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