2020/7/12/ · Anaerobic sludge stabilization is a commonly used technology. Most fermenters are operated at a mesophilic temperature regime. Modern trends in waste management aim to minimize waste generation. One of the strategies can be achieved by anaerobically stabilizing the sludge by raising the temperature. Higher temperatures will
2024/5/1/ · 2.2. Semi-continuous operation of AnDMBR for sludge anaerobic fermentation. A schematic diagram and the operational mode of the AnDMBR and the properties of the DM are provided in the Supplementary Material.In stage 1, the sludge anaerobic fermenter was operated without DM, and 600 mL of pretreated sludge
2018/7/1/ · A full-scale of sewage sludge anaerobic alkaline fermentation for VFAs production was built and applied in wastewater treatment plant. Long-term operation indicated the adoption of this system could simultaneously realize sludge reduction, carbon source recovery and nutrient removal enhancement. About 54% of sludge could be
2020/7/12/ · Anaerobic sludge stabilization is a commonly used technology. Most fermenters are operated at a mesophilic temperature regime. Modern trends in waste management aim to minimize waste generation.
2023/11/22/ · Eight pretreatment were applied to WAS , where W.1 was the fermentation process of the raw wastewater treatment plant. Pretreated sludge samples of 200 mL mixed with 200 mL DS were placed into the 600 mL fermentation flasks, and then each of the flasks was sparged with nitrogen gas for 5 min to create an anaerobic
2022/7/15/ · The acesulfame (ACE) degradation in waste activated sludge (WAS) via direct anaerobic fermentation is difficult and the efficient elimination techniques are imperative for the ultimate safe WAS disposal. Persulfate (PS)-based approach was developed to promote the ACE removal during WAS anaerobic fermentation.
2022/9/5/ · 3 Research status of organic wastewater fermentation hydrogen production process. Existing studies have studied hydrogen production in a variety of reactors, among which the most studied include (de Menezes and Silva, 2019) Continuous flow Stirred Tank Reactor (CSTR), Upflow Anaerobic Sludge Bed (UASB), Anaerobic
2023/12/1/ · The primary sludge was used for anaerobic fermentation, while excess sludge from this WWTP was used as the inoculum for the inverted A 2 /O reactor. In order to minimize the impact of original substances on the inverted A 2 /O system, the inoculum sludge was taken back and placed under the temperature of 25 °C for 24 h to consume
2022/1/1/ · 1. Introduction. Anaerobic digestion (AD) is widely employed for the stabilization of waste-activated sludge (WAS) due to its inherent merits, such as effective volatile solids reduction and energy recovery via biogas production (Nguyen et al., 2019).However, only 10 to 14% (0.2 kWh/m 3) of the influent chemical energy is typically
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
Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment. Sludge treatment is focused on reducing sludge weight and volume to reduce transportation and disposal costs, and on reducing potential health risks of disposal options. Water removal is the primary means of
1. Introduction. Resource recovery from municipal sludge is of great importance considering that treatment and disposal of sludge account for approximately 20–60 % of the operating costs of wastewater treatment plants (WWTPs) [63].Anaerobic fermentation is widely used in sludge stabilization and resource recovery (e.g., in the form of volatile fatty acid
2020/1/1/ · Anaerobic fermentation for volatile fatty acid (VFA) production seems to be a more promising technology in sewage sludge treatment and reutilization, in which the carbon resources are converted into useful VFAs, instead of carbon dioxide and methane. Then, it simultaneously treats waste sludge, generates valuable biochemical products,
2023/12/1/ · MCFAs production from sewage sludge through anaerobic fermentation has been proved as a promising and preferable way for sludge treatment and resource …
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 …