2023/12/15/ · 1. Introduction. Recently, the employment of the circular economy approach in the wastewater treatment plant (WWTP) operation led to the spread of new biotechnologies focused on resource recovery from wastewater (Guleria et al., 2022).Due to the high disposal costs and the high amount produced, sewage sludge has become the
2019/5/1/ · Electrically regulating co-fermentation of sewage sludge and food waste towards promoting biomethane production and mass reduction The liquid samples were centrifuged at 8000 r/min to remove supernatant. According to the manufacturer's instructions, DNA was ... The data of methane production during the
2022/1/1/ · 2.1 Characters of Sewage Sludge. The source and volume of flushing water (public and private toilets), storage technique (on-site and off-site), and additional treatment phase, such as digestion, all have an impact on the sludge’s characteristics (Tables 3 and 4).Fresh sludge contains a high concentration of microorganisms, a high water content, a
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
2020/9/1/ · However, during the wastewater treatment, a considerable amount of organic matter is produced in the sewage sludge, including primary sludge (PS) and waste activated sludge (WAS). In the process of acidogenic fermentation (AF), this organic matter can be decomposed and converted into short-chain fatty acids (SCFAs), which are a
Multi-ring screw type sludge dewatering equipment. Quality sewage treatment plant equipment is available at Yuan Chang. We offer a variety of industrial wastewater treatment plant equipment, such as auto bar screen, sludge thickener, sand water separator, and so on. See more about our wastewater/sewage treatment plant
2023/12/4/ · Several processes are used: air drying on sand beds. centrifugation. belt pressing (filtration) Increases solids content to 15 to 30%. Air drying reduces pathogens. Centrifugation and filtration result in some loss of nutrients. Anaerobic digestion. One of the most widely used for sludge treatment.
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
The antimony source was subjected to methylation in sewage sludge, an anaerobic dominant methanogenic Archaea community. The antimony species were determined in the gas phase using cryotrapping (CT)-GC-ICP-MS, and in the medium (sewage slude) by hydride generation (HG) prior CT-GC-ICP-MS. The determined 123/121Sb isotope ratios
2023/12/15/ · Studying HS's synthesis and influencing factors during sludge hyperthermophilic aerobic fermentation is of great significance for controlling pollution caused by sludge land use. Compost materials from different sources in aerobic composting can be divided into protein-rich materials (such as livestock and poultry manure, sewage
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
2023/12/1/ · 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
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
2023/1/1/ · Abstract. Acidogenic fermentation of sewage sludge for volatile fatty acids (VFA) production is gaining increasing attention due to their wide range of possible applications, sustainability, and circular economic value. The purpose of this chapter is to provide a comprehensive review of sludge-derived VFA production mechanisms and …