2022/3/1/ · The co-fermentation of sewage sludge and macroalgae at different mixing ratios was performed for medium-chain carboxylates (MCCs) production. The results showed that MCCs production was enhanced in co-fermentation groups due to the abundant readily available organics supplied by macroalgae and the alkaline buffer
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
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.
2022/1/1/ · This work explored the feasibility of paper waste (PW)/sewage sludge (SS) co-fermentation for volatile fatty acids (VFAs) production, and disclosed its correlation with the key operational parameters (i.e., pH and PW/SS ratio).The results indicated that the maximal VFAs was 251.55 mg COD/g TSS at optimal conditions, which was
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
2023/8/21/ · Polyaluminum chloride (PAC) is used widely and increasingly in wastewater treatment plants, resulting in its inevitably high production in sludge. Previous studies have indicated that the production of short-chain fatty acids (SCFAs) is inhibited by the existence of PAC in sludge anaerobic fermentation, so it is necessary to study how
2018/1/20/ · The treated Al-sludge was then processed by acidogenic fermentation to convert particulate organics to valuable VFAs for organic recovery. The sludge properties and microbial community during Al-sludge fermentation were analyzed for understanding the mechanisms of the enhanced sludge fermentation and VFAs production. 2.
This study examined the effects of different temperatures (37°C and 45°C) and pH (uncontrolled, 8 and 10) on the co-fermentation of FeCl3, anionic polyacrylamide (a-PAM) settling chemical enhanced primary sedimentation (CEPS), and waste activated sludge (WAS) to produce volatile fatty acids (VFAs), which analyzed through characterization,
Here we investigate the transformation of antimony in view of biomethylation during sewage sludge fermentation as a case study for an anaerobic environment. Our approach was to identify if antimony methylation follows the Challenger pathway by using isotopically enriched antimonite (123Sb (v)). The antimony source was subjected to methylation
2023/1/1/ · The pilot plant fermenter was fed with real sewage sludge produced from a biological pilot plant for carbon and nitrogen removal installed at the Water Resource Recovery at Palermo University Campus (Mannina et al., 2021). In Table 1 the main features of the sewage sludge are reported. Three different fermenter pilot plant experiments (T1,
2024/2/1/ · Improvement of sewage sludge anaerobic digestion through synergistic effect combined trace elements enhancer with enzyme pretreatment and microbial
2014/10/1/ · In recent years, the recovery of VFA from the biological treatment of wastewater, sewage sludge, food and fermentation waste and lignocellulosic waste biomass through dark fermentation and
2023/5/15/ · The unit price is 10 times cheaper than Ca(OH) 2 c: Longo et al. (2015) conducted a pilot test for the production of SCFAs from sewage sludge by alkaline fermentation and subsequent membrane filtration, and the removal efficiency of TN and TP was increased by 19 % and 39 %, respectively, using membrane-filtered SAFL as the …