Treatment and Re-Use of Raw Blackwater by Chlorella vulgaris-Based System
| العنوان: | Treatment and Re-Use of Raw Blackwater by Chlorella vulgaris-Based System |
|---|---|
| المؤلفون: | Marco Antonio Segovia Bifarini, Aleksandra Krivograd Klemenčič, Miha Žitnik, Tjaša Griessler Bulc |
| المصدر: | Water, Vol 12, Iss 2660, p 2660 (2020) Water Volume 12 Issue 10 Water, vol. 12, no. 10, 2660, 2020. |
| بيانات النشر: | MDPI AG, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, lcsh:Hydraulic engineering, Hydraulic retention time, urin, Geography, Planning and Development, Chlorella vulgaris, Biomass, fekalije, 010501 environmental sciences, Aquatic Science, 01 natural sciences, Biochemistry, Nutrient, lcsh:Water supply for domestic and industrial purposes, Dry weight, nutrients, lcsh:TC1-978, 010608 biotechnology, 0105 earth and related environmental sciences, Water Science and Technology, agriculture, Blackwater, lcsh:TD201-500, biomass, čiščenje odpadnih voda, Chemical oxygen demand, kmetijstvo, Pulp and paper industry, urine, biomasa, wastewater treatment, hranila, feces, Environmental science, Sewage treatment, udc:628.3 |
| الوصف: | In this study, we examined a Chlorella vulgaris-based system as a potential solution to change liquid waste, such as blackwater, into valuable products for agriculture while protecting waters from pollution without technical demanding pre-treatment. To evaluate the possibility of nutrient removal and biomass production from raw blackwater, four blackwater dilutions were tested at lab-scale: 50%, 30%, 20%, and 10%. The results showed that even the less diluted raw blackwater was a suitable growth medium for microalgae C. vulgaris. As expected, the optimum conditions were observed in 10% blackwater with the highest growth rate (0.265 d&minus 1) and a nutrient removal efficiency of 99.6% for ammonium and 33.7% for phosphate. However, the highest biomass productivity (5.581 mg chlorophyll-a L&minus 1 d&minus 1) and total biomass (332.82 mg dry weight L&minus 1) were achieved in 50% blackwater together with the highest chemical oxygen demand removal (81%) as a result of the highest nutrient content and thus prolonged growth phase. The results suggested that the dilution factor of 0.5 followed by microalgae cultivation with a hydraulic retention time of 14 days could offer the highest biomass production for the potential use in agriculture and, in parallel, a way to treat raw blackwater from source-separation sanitation systems. |
| وصف الملف: | application/pdf; text/url |
| اللغة: | English |
| تدمد: | 2073-4441 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::213b2db441f61f3ca6deead845f342fc https://www.mdpi.com/2073-4441/12/10/2660 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....213b2db441f61f3ca6deead845f342fc |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734441 |
|---|