2019/6/15/ · The schematics of the electro-fermentation reactors for sludge fermentation are shown in Fig. 1.The cylindrical reactor was a two-compartment cell consisting of an anode and a cathode chamber, both of which were 6.2 cm in length and 7.2 cm in internal diameter and separated by a cation exchange membrane (Ultrex CMI
2022/10/1/ · MCFAs were produced from complex organics through two-stage fermentation process, i.e. acidification process and CE process. Fig. 1 A shows the acids formation in different fermentation groups during the acidification process. The mono-fermentation of sewage sludge achieved the highest cumulative acids production of
2023/12/8/ · However, the industrial applications of fermentative hydrogen production from sewage sludge are still scarce, which might contribute to the following two aspects: (1) the poor bioavailability of sludge caused by complex matrix [15]; (2) the hydrogen-consuming microorganisms that existed in sludge (e.g., methanogens and sulfate
2023/12/1/ · Synthetic wastewaters of NH 4 +-N, RP, and acetate were prepared to simulate a sewage sludge fermentation liquid.The concentrations of NH 4 +-N, RP, and acetate were referenced to the characteristics of the fermentation liquid derived from sewage sludge (see Supplementary Material s). All chemicals (e.g., NH 4 Cl, Na 2 HPO
2023/12/8/ · In this study, an algal–bacterial symbiotic consortium was integrated with the sediment microbial fuel cell (SMFC) to construct an algal–bacterial cathode SMFC (AC-SMFC) for excess sewage sludge treatment and electricity generation. A bacterial cathode SMFC (BC-SMFC) and a static settling system (SS-system) were used as controls.
2024/4/30/ · The relevant studies will provide new sights into sludge fermentation and guidance for sludge disposal. We are inviting research papers and reviews about novel insights on sludge fermentation. The aim of this Special Issue is to provide an insight into the latest findings of sludge fermentation, including the biologically volatile fatty acids
2024/3/10/ · The integration of a microbial electrolysis cell (MEC) is an effective strategy for enhancing the efficiency and stability of an anaerobic digestion (AD) system for energy recovery from waste-activated sludge (WAS). Typically, electrodes are arranged as separate components, potentially disrupting mixing and complicating the reactor
2019/5/24/ · The stabilization of sewage sludge is continued under psychrophilic fermentation (temperature less than 20 °C) in the open digestion chambers (ODC), which is a phenomenon on the European scale. It is the first work presented emission of biogas from stabilized sludge under psychrophilic conditions conducted parallelly, under
2023/12/4/ · Sewage sludge is composed of both inorganic and organic materials, large concentrations of some plant nutrients, much smaller concentrations of numerous trace elements¹ and organic chemicals, and some pathogens. The compositions of sewage sludges vary considerably depending on the wastewater composition and the treatment
2023/6/1/ · In this study, a dual chamber microbial fuel cell (MFC) was constructed in order to directly recover P from sewage sludge utilizing cathodic Fe reduction to produce a more valuable product of vivianite for the first time, avoiding the pre-treatment of sludge and simultaneously producing energy.
2024/4/22/ · There are many applications for the technology of producing hydrogen from organic waste. Due to its large volume, high organic content, and stable source, sewage sludge has gained significant attention among various organic wastes. The purpose of this paper is to present a bibliometric and technological study of hydrogen production
2024/4/1/ · Co-fermentation: Sewage sludge (from municipal WWTP) and algae: Ferrous (Fe 2+) ions: 600 mg/L Fe 2+ 7: 36: 5.24: 14.8: 1.87 times of control (Yin et al., 2021) Table 2. A detailed summary of the literature on the production of hydrogen from sewage sludge by different (excluding fermentation).
2023/10/15/ · Wang et al. compared one- and two-chamber microbial fuel cells equipped with an iron plate as an anode during wastewater treatment and obtained a higher vivianite recovery efficiency of 90.6–97.6% in the two-chamber microbial fuel cell (MFC the simulated sludge fermentation liquid (SSFL) was prepared to simulate the SFL …
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 …
2024/2/1/ · Anaerobic fermentation is widely installed to recovery valuable resources and energy as CH 4 from waste activated sludge (WAS), and its implementation in developing countries is largely restricted by the slow hydrolysis, poor efficiency, and complicate inert components therein. In this study, enzyme-enhanced fermentation was …