2009/8/30/ · Sterilized sludge was used to produce hydrogen by anaerobic self-fermentation and raw sludge was used as control. The cumulative hydrogen yields of sterilized sludge and raw sludge are shown in Fig. 1.Owing to the co-existence of hydrogen-producing microorganisms and hydrogen-consuming ones and their different
2019/8/1/ · Anaerobic fermentation (AF) could achieve simultaneous recovery of short-chain fatty acids (SCFAs) and phosphorus (P) when waste activated sludge (WAS) and meat processing waste (MPW) act as co
2021/12/15/ · The fermentation of primary sludge is used at the Gold Bar WWTP to produce VFAs and reduce the sludge volumes to the anaerobic digesters. Four fermenter/thickeners are used to achieve fermentation. The solids residence time (SRT) is 5–8 days, and the hydraulic residence time is 35 – 73 hrs.
2022/10/1/ · Sewage sludge (SS), the byproduct of sewage treatment plants, contains diverse microorganisms with multiple metabolic functions. Anaerobic fermentation is one of the effective approaches for SS treatment, but its efficiency is commonly low due to its low content of bioavailable organic matter (Luo et al., 2020b, Zhang et al., 2020c). Therefore
The hydrogen and methane were produced from wastewater sludge using a Clostridium strain. The original sludge and the pre-treated (acidified, sterilized, freeze/thawed, and sonicated) sludges were tested. Production of hydrogen and methane from wastewater sludge using anaerobic fermentation Water Sci Technol. 2004;50(9):223-8. Authors C
2022/11/1/ · 1. Introduction. Anaerobic co-digestion of food waste and sewage sludge is currently being applied throughout the United States, Europe, and China for waste reduction and biogas production (Gu et al., 2020, Karki et al., 2021, Li et al., 2022).However, the organic matter conversion efficiency of conventionally used continuous stirred tank
2020/5/8/ · Anaerobic digestion (AD) is the most extensively employed sludge stabilisation process. AD stabilises the sludge biologically in the absence of air. In doing so, it reduces the amount of volatile solids by their conversion to a biogas (methane CH 4, carbon dioxide CO 2 and water H 2 O). The biogas then demands further processing for
2015/10/1/ · The anaerobic granular sludge used as the inoculants for the EGSB reactors, was obtained from a full-scale UASB reactor in Hebei Province, China, which was used to treat the brewery wastewater. The MLVSS of the inoculated sludge was 25.2 g l −1. The volatile suspended solids (VSS)/suspended solids (SS) ratio was 0.56. 2.1.2.
2021/5/29/ · The effective of stimulation of anaerobic fermentation of municipal SS are being developed rapidly. There is a wide range of research on the use of co-substrates in the anaerobic digestion of sewage sludge with the implementation of various sludge treatment techniques [4, 5].Also, various factors influencing the hydrolysis
2024/4/30/ · In particular, the biostabilization of anaerobic sludge (AS1) produced in excess from the wastewater treatment plant (WWTP) of Patras, Greece, and mixed anaerobic sludge (AS2) originating from the effluents of a laboratory anaerobic co-digestion system treating an agroindustrial waste mixture (olive mill wastewater, cheese
2024/2/29/ · Special Issue Information. Dear Colleagues, Wastewater treatment facilities in China must produce a significant amount of sewage sludge due to the country's rapid urbanization and the rise in urban wastewater. This sludge contains potential resources including organic materials, nutrients, metals, and bioenergy that can be
2022/2/28/ · sewage sludge, and the results showed that the presence of 30 mg Al/g TS of PAC in sewage sludge significantly reduces the production of short-chain fatty acids in sewage sludge anaerobic fermentation compared with the control group. The mechanism study shows that the inhibition phenomenon is caused by the flocculation of
2024/3/1/ · Before use, the slurry form FW was diluted 10 times with tap water, making the VS of FW was 23.82 g/L. The COD of the diluted FW was 33.11 g/L. Anaerobic digestion sludge (ADS) was harvested from an anaerobic digester, which has been used for treating sewage sludge and operated under steady status for nearly a year. The VS …
2020/6/1/ · This work studied the effect of total solid (TS) of sewage sludge on VFA production and composition in anaerobic fermentation. Results revealed that VFA concentration reached the highest of 10.16
2023/12/1/ · MCFAs synthesis from sewage sludge by anaerobic fermentation is a promising approach to treat sludge and recover energy, concurrently. This review …