2009/9/16/ · Primary Influent. Clarifier. Effluent to Bioreactor. Fermented Sludge to solids handling Sludge Recycle. PSD recycle to 1) inoculate Inf., 2) provide longer SRT than HRT, 3) elutriate VFAs formed. Typical SRT = 2 to 3 days. SRT control by adjusting sludge wasting. Sludge blanket monitoring required for determine solids inventory and solids in
2010/11/5/ · Wastewater biological nutrient removal (BNR) by short-cut nitrification-denitrification (SCND) and denitrifying phosphorus removal via nitrite (DPRN) has several advantages, such as organic carbon source saving. In this paper, a new method, i.e., by using waste activated sludge alkaline fermentation liquid as BNR carbon source, for
Comprehensive reference examining activated sludge technologies in industrial wastewater treatment, combining a theoretical framework with practical methodologies Application of Sewage Sludge in Industrial Wastewater Treatment provides a roadmap to the methodologies for the treatment of industrial wastewaters from several major sectors
2020/1/1/ · The disposal cost of sewage sludge usually accounts for around 50% of the total operational cost in WWTPs (Appels et al., 2008).With the vast amount of the generated sludge from WWTPs, which also contains a substantial quantity of organic matter, therefore, much attention has been focused on the reuse and recycling of the valuable components
2022/7/23/ · In this domain of progressive research, lab-, pilot-, and demonstration-scale studies are dealing with the fermentation of biogenic gases (e.g., CO 2, CO, and CH 4 ), waste or wastewater to produce a range of biofuels and valuable products, based on the activity of pure or mixed cultures of native or recombinant aerobic and anaerobic bacteria
2015/4/6/ · Sludges, Water treatment. Sewage sludge, the most important byproduct of biological wastewater treatment, is considered an important source of secondary pollution in aquatic environments, linked to health problems and even deaths in humans. In 2012, China generated more than 68.5 billion metric tonnes of wastewater, and this is expected to
2024/1/1/ · Biohydrogen production from industrial waste has gained a significant attention as a sustainable energy source. In this study, the enrichment of biohydrogen production from pretreated dissolved air flotation (DAF) sludge, generated from food industry wastewater treatment plants, was investigated using SiO 2 @Cu-Ag dendrites
Abstract. Anaerobic fermentation for volatile fatty acids (VFAs) production is a promising technology for sewage sludge treatment and reutilization. The fundamental aspects and actual developments of VFA production from sewage sludge by anaerobic fermentation are critically reviewed. Based on fermentation mechanisms and microbiological analysis
2021/4/19/ · Gas variation of different industrial wastewater sludge blending ratios during co-gasification at 800 °C. Moreover, compared with SS and IS gasification performance, adding IS could improve H 2 yield during co-gasification. While increasing the blending ratio of IS ratios from 0 to 20%, the hydrogen gas increased from 9.10% to
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
2024/1/2/ · Sewage sludge processing for hydrogen generation purposes can be also solved by mixing the problematic material with other types of biomass, industrial waste and fuels, such as textile sludge [20], industrial wastewater sludge with low fixed-carbon content [14], torrefied biomass [21] or coal, microalga and sawdust [22].
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 …
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Metagenomic Reconstruction of Key Anaerobic Digestion Pathways in Municipal Sludge and Industrial Wastewater Biogas-Producing Systems in GZ suggested that it was more functionally stable. While fermentation in both samples was dominated ... using the Illumina paired-end DNA sample preparation kit according to the manufacturer’s ...