A new approach for chemical oxygen demand (COD) measurement at high salinity and low organic matter samples
In: Environmental science and pollution research: ESPR, Band 17, Heft 9, S. 1547-1552
ISSN: 1614-7499
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In: Environmental science and pollution research: ESPR, Band 17, Heft 9, S. 1547-1552
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 26, Heft 32, S. 32723-32733
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 26, Heft 2, S. 1770-1780
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 25, Heft 7, S. 6398-6406
ISSN: 1614-7499
In: JEMA-D-22-08483
SSRN
In: Environmental science and pollution research: ESPR, Band 31, Heft 20, S. 29304-29320
ISSN: 1614-7499
AbstractRecently, one of the main purposes of wastewater treatment plants is to achieve a neutral or positive energy balance while meeting the discharge criteria. Aerobic granular sludge (AGS) technology is a promising technology that has low energy and footprint requirements as well as high treatment performance. The effect of co-treatment of municipal wastewater and food waste (FW) on the treatment performance, granule morphology, and settling behavior of the granules was investigated in the study. A biochemical methane potential (BMP) test was also performed to assess the methane potential of mono- and co-digestion of the excess sludge from the AGS process. The addition of FW into wastewater enhanced the nutrient treatment efficiency in the AGS process. BMP of the excess sludge from the AGS process fed with the mixture of wastewater and FW (195 ± 17 mL CH4/g VS) was slightly higher than BMP of excess sludge from the AGS process fed with solely wastewater (173 ± 16 mL CH4/g VS). The highest methane yield was observed for co-digestion of excess sludge from the AGS process and FW, which was 312 ± 8 mL CH4/g VS. Integration of FW as a co-substrate in the AGS process would potentially enhance energy recovery and the quality of effluent in municipal wastewater treatment.
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