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2015/9/12/ · The temperature of the composting mixtures maintained above 55°C for more than 3 days during the composting, indicated that co-composting of CCFDs and AS could reach the compost maturity standard

2023/4/1/ · The co-composting of the sewage sludge and rice husk reduced TOC losses. Villaseñor et al., (2011) reported that in the composting of domestic sewage sludge with different natural materials in a rotary drum reactor, the carbon loss in the reactor containing 25 % mordenite was 58 % (Villaseñor et al., 2011). In the composting of

2012/8/29/ · Nevertheless, a few studies done on sewage sludge composting in rotary drums with residence times of 2-3 weeks, suggested sufficient biomass stabilization without a maturation phase (Kalamdhad et

2022/7/15/ · Hence, the technology selection and implementation scale were critical elements of the sewage sludge recycling-system strategy for decision-makers based on the scale of the city [1,9]. In conclusion, this study successfully quantified the impact of the implementation scale on the environmental and economic performance of different

Odor is inevitably produced during sewage sludge composting, and the subsequent pollution hinders the further development of composting technologies. Third-generation high-throughput sequencing was used to analyze microbial community succession, and the correlations between odor and microbial communities were evaluated.

2007/4/1/ · However, other authors including Liu et al., (2007) reported a low concentration of Ni in the F1 and F2 fractions: ca. 10 mg kg −1 in both fractions, in a sewage sludge compost in China, similar

2020/2/1/ · A production scale compost experiment was conducted with three mixtures of sewage sludge (SS): green forest waste (GFW) at quality ratios of 3:1 (T1), 3:2 (T2) and 3:3 (T3). The residual concentration of PAHs in the three treatments met the permissible limit prescribed by the Agricultural Sludge Pollutant Control Standard (GB 4284-2018).

2016/3/1/ · An overall and reliable assessment of the security and maturity of PFD co-composting with sewage sludge was obtained. If composting can eliminate antibiotics and ARGs in PFDs, it can be an efficient way to recycle PFD resources, which will reduce the PFD disposal cost for pharmaceutical industries. 2. 2.1. Composting materials

2020/5/1/ · To address this issue, a centre-oriented real-time temperature compensation strategy was designed in this study. Five 9 L reactors (R1-R5) with different insulation strategies were used for the co-composting of dewatered sludge and Phragmites australis and compared. The process performance was assessed by monitoring the temperature,

2012/6/20/ · In 2008, it is estimated that 57 billion tons of municipal wastewater was discharged in China, 58% of which came from municipal domestic sewage (Zhang et al. 2010), while the production of municipal wastewater and dewatered sewage in China increased approximately 5% per year on average from 1998 to 2009 as shown in Fig.

2018/2/2/ · The objective of this study was to examine the feasibility of sewage sludge composting using a simple aeration method. Two consecutive composting trials (run A and run B) using Japanese sludge and woodchips (1:1, v/v) were conducted in cubic boxes (0.45 × 0.45 × 0.45 m3) made by plywood at Okayama University. Air was forced up

2023/12/15/ · Composting is the controlled, aerobic (oxygen-required) biological decomposition of organic materials by microorganisms. Organic (carbon-based) materials include grass clippings, leaves, yard and tree trimmings, food scraps, crop residues, animal manure and biosolids. Compost is a dark, crumbly, earthy-smelling, biologically-stable

2023/9/15/ · 1. Introduction. Municipal sewage sludge (SS), as a by-product in the process of sewage treatment, produced more than 50 million tons (80% moisture content) at the end of 2020 in China (Gao et al., 2022; Djandja et al., 2021).The effective and ecofriendly disposal of SS has attracted increasing attention and has become an urgent

Reducing H2S production by O2 feedback control during large-scale sewage sludge composting Waste Manag. 2011 Jan;31(1):65-70. doi: 10. 1016/j in the pile during composting. The results indicate that H(2)S was mainly produced during the early stage of composting, especially during the first 40 h. Lack of available O(2) was the main reason ...