Jan 1, 2022 · Sewage sludge (SS) is the solid, semi-solid, or liquid residue generated during the treatment of domestic sewage in wastewater treatment plants (WWTPs), whose correct destination is one of the biggest challenges for sanitation services globally (Zhen et al. 2017; Raheem et al. 2018) since the worldwide 7.6 billion people excreta must be disposed of in some way.
Mar 16, 2021 · Fluidized bed gasification is a promising process technology to manage the growing amount of sewage sludge (SS) requiring disposal. Two samples of SS, produced in different seasons of the year by a municipal wastewater treatment plant, were subjected to gasification at 850 °C in a bench-scale fluidized bed reactor using, as a gasification agent, a nitrogen/air mixture at different values of
Jan 24, 2024 · Sewage sludge, a by-product of wastewater treatment, is garnering increasing attention in the pursuit of closed-loop economy practices due to its highly beneficial fertilizing properties. However, like any technique, using sewage sludge as fertilizer has potential and limitations. Heavy metals within sewage sludge are a primary limitation curtailing its application as a fertilizer. This study
Oct 19, 2023 · Sewage sludge treatment and disposal remains a challenging problem. Composting of sewage sludges is gaining increasing attention due to its cost-effectiveness, operation convenience, advantages in lifecycle management, and low greenhouse gas emissions. Disadvantages, such as long reaction time, significant land area occupation requirement, potential risks of residual heavy metals, and emerging
Dec 1, 2023 · Sewage sludge is the most economical and sustainable way to produce biodiesel compared to the use of edible oils and microalgae. BEP of biodiesel produced was estimated to be only 1.186 € ton-1, highlighting the effectiveness of the adopted technology. In addition, it is a widely available resource. Conclusions
The co-composting system (dry weight (dw) basis) consisted of 200 g of restaurant organic residues + 200 g sewage sludge (or 100 mL sewage wastewater, or 200 g textile sludge) + 100 mL of a 10% dye solution (Reactive Red 195, or Synolon Brown, or Orange Remazol, or Yellow Synozol, or Reactive Orange 122, or Reactive Black 5).
Aug 16, 2021 · The advantages of the gasification process are: energy efficient technology; liquid fuel potential; stand-alone technology; waste in small quantities; low emissions; favoring the treatment plants from an economic point of view; low carbon potential for the energy industry.
Oct 1, 2010 · Our results suggest that composting of sewage sludge can be an economical and environment-friendly solution for sewage sludge recycling and fertilizing for landfill revegetation. 5. ConclusionsTreatment with sewage sludge compost significantly improved the chemical and physical properties of the reclaimed soil in the landfill.
Feb 13, 2014 · Four commonly used sewage sludge treatment techniques in China are compared, each with and without the combination of anaerobic digestion: composting, co-combustion in power plant, thermal drying-incineration, and cement manufacturing. Life cycle assessment (LCA) is used to quantify the environmental burden, while exergetic life cycle assessment (ELCA) is supplemented to measure the resources
In the face of high chemical oxygen demand (COD) loading (higher than 38,000 mg/L), AD further utilized the filtrate to produce 260 mL/g COD input (25 °C and 1 atm) of CH 4, which can improve the efficiency and economics of an industrial-scale HP plant [21]. Therefore, it is necessary to investigate the co-HP of SS and DR for dehydration
Apr 19, 2019 · For instance, Grosser (2018) used grease trap sludge and an organic fraction of municipal waste as cosubstrates in the process, which enhanced the efficiency of sewage sludge anaerobic digestion. Similarly, other organic wastes have been tested with success, for example, food waste, cheese whey, and olive mill wastewater ( Maragkaki et al., 2018 ).
Jan 14, 2021 · Published: 14 January 2021. Improving sewage sludge compost process and quality by carbon sources addition. Liqiang Meng, Weiguang Li, Shumei Zhang, Xiancheng Zhang, Yi Zhao & Li Chen.
Jan 1, 2011 · The application of sewage sludge to agricultural land is an economical and sustainable method both of recovering nutrients and of disposing of sewage sludge (Lundina et al., 2004;Laturnus et al
Relative abundance of bacterial families in compost samples from sludge sewage industrial-scale composting facilities. Raw material (RM), mesophilic phase (MES), thermophilic phase (TER), cooling phase (COOL), maturation (MAT), and final product (FP).
Dec 25, 2018 · The increasing volume of sewage sludge from wastewater treatment facilities is becoming a prominent concern globally. The disposal of this sludge is particularly challenging and poses severe environmental hazards due to the high content of organic, toxic and heavy metal pollutants among its constituents. This study presents a simple review of four sewage to energy recovery routes (anaerobic