2023/4/12/ · Anaerobic fermentation of waste activated sludge to produce short-chain fatty acids (SCFAs) is one of the means of sludge resource utilization. However, the
Home Video Channel What is Cow Dung Municipal Sludge Horizontal Fermentation Tank Straw Distiller′s Grains Decomposing Equipment Organic Compost Machine US$30,777.00-34,777.00 / Set
Ovivo systems have been installed in thousands of municipal wastewater treatment plants over the past century. Not only do Ovivo’s products have proven longevity, but our engineering teams are able to improve the efficiency of conventional processes so upgrades can be made on established systems. This ensures our partners are able to meet
2022/7/29/ · Sludge dewatering is an important link in sludge treatment. In practical engineering, the dewatering effect of unconditioned sludge is very poor. The use of advanced oxidation technology can improve sludge dewatering performance, reduce sludge capacity, and remove micro-pollutants, which is beneficial for sludge post
2024/3/28/ · Dark fermentation, optical fermentation, and the use of microbial electrolytes (MECs) are the main of obtaining H 2 from the anaerobic
2023/2/8/ · Municipal sludge contains many valuable nutrients (e.g., OM, N, P, and K). Studies show that the total dry solids of municipal sludge contain 20.5–40.3% organic carbon (C), 2.8–4.9% total nitrogen (TN), 1.2–3% total phosphorus, and < 1% total potassium (Collivignarelli et al., 2019).Therefore, the use of municipal sludge as a soil
Municipal sludge is a solid or semisolid byproduct of the aerobic or anaerobic digestion of the domes-tic wastewater, storm water, plant debris, and manure treated in municipal wastewater treatment plants (Saleh Bairq et al., 2018; Seleiman et al., 2020). By the end of 2020, China generated an estimated 36.984 million tons of municipal sludge.
2020/9/8/ · Biological nitrogen removal of wastewater with low COD/N ratio could be enhanced by the addition of wasted sludge fermentation liquid (SFL), but the performance is usually limited by the introducing ammonium. In this study, the process of using SFL was successfully improved by involving anammox process. Real municipal wastewater with a
2021/5/1/ · Abstract. Municipal sewage sludge is a significant by-product in the conventional treatment of municipal wastewater. Its output has greatly increased with the progress of urbanization and industrialization. The harmless disposal and resource utilization of municipal sewage sludge has become an urgent problem to be solved in the
7 小时之前 · Soluble chemical oxygen demand (sCOD), VFA, ammonium (NH 4 +-N) and phosphate (PO 4 3−-P) were analysed in the fermentation of mixed liquor, permeate and
2023/5/25/ · Four parameters affecting hydrothermal pretreatment (HTP) of municipal sludge prior to anaerobic digestion and fermentation were investigated. Partial factorial design including several key HTP parameters at two distinct levels, including temperature (170 and 190 °C), retention time (RT) (10 and 30 min), pH (4 and 10), and solid content
2021/9/20/ · The focal study area was Xi'an, located in Northwest China (33° 42′–34° 45′ N, 107° 40′–109° 49′ E, Fig. 1) with a municipal area of 10,700 km 2 and a population of 10.2 million in 2019. There are 30 WWTPs in Xi'an, with a daily sewage disposal volume of 2.7 million tons and sludge production of approximately 2700 t/d (moisture content of 80%).
2020/8/25/ · These findings demonstrate the bioconversion of food waste and municipal sludge into lactic acid, and the recycling of food wastes in urban areas to enhance soil nutrients. Lactic acid production