The compressive strength of the prepared ash microcrystalline glass can meet the requirements of GB/T19766–2016 "Natural Marble Building Panel" (≥50 MPa) when the addition amount of fly ash is 10–40% and the sintering temperature is 850–1085°C; among them, the chemical corrosion resistance of the prepared product …
This study aimed to develop a novel filtering medium ceramic aggregate prepared using municipal solid waste incineration (MSWI) fly ash and the fuel ash from coal power …
Under the optimal synthetic conditions (RM:fly ash:bentonite = 60:30:10, preheating temperature of 450 °C, preheating time of 10 min, sintering temperature of 1150 °C, and sintering time of 25min), the ceramsite exhibited a high compressive strength of 21.01 MPa, 1-h water absorption of 1.21%, and bulk density and apparent density were …
According to our team's previous exploration, it led to shape distortion during high-temperature sintering process (more than 1000 °C) when employing chemical reagent (Na 2 SiO 3) as binder to prepare ceramsite from dewatered sewage sludge, river sediment and coal fly ash by sintering method, especially when the content of Na 2 …
The preparation of high-strength ceramsite from circulating fluidized bed (CFB) fly ash is an effective approach for commercial utilization. The role of CaO plays a …
Co-utilization of iron ore tailings and coal fly ash for porous ceramsite preparation: Optimization, mechanism, and assessment J Environ Manage. ... (IOTs content at 76%, preheating at 550 °C for 15 min, and sintering at 1177 °C for 14 min), while maintaining good mechanical properties (water adsorption of 1.28%, comprehensive …
Preparation of CFB fly ash/sewage sludge ceramsite and the morphological transformation and release properties of sulfur. Guanhua Jia, Yanlin Wang, +1 author. …
By controlling the MSWI fly ash content of 30 wt%, MG ceramsite can be obtained with bulk density of 986 kg/m 3, cylindrical compressive strength of 19.67 MPa, 1 h water absorption of 0.31 %, and chlorine content of 0 after sintering at 1150 °C for 20 min. Chlorine in MG ceramsite enters into the tail gas or secondary fly ash in the form of ...
Semantic Scholar extracted view of "Co-utilization of iron ore tailings and coal fly ash for porous ceramsite preparation: Optimization, mechanism, and assessment." by Penghui Guo et al. Skip to search form Skip to ... Influence of dextrin content and sintering temperature on the properties of coal fly ash-based tubular ceramic membrane for ...
Preparation, sintering behavior, and expansion performance of ceramsite filter media from dewatered sewage sludge, coal fly ash, and river sediment Li, Tianpeng; Sun, Tingting; Li, Dengxin; Abstract. Publication: Journal of Material Cycles and Waste Management ...
The results show that the optimal parameters for preparation of ultra-lightweight ceramsite are as follows: mass ratio of fl y ash:kaolin: fl diatomite = 80:15:5, preheating …
DOI: 10.1016/j.ceramint.2024.04.158 Corpus ID: 269192887; Revealing the intrinsic sintering mechanism of high-strength ceramsite from CFB fly ash: focus on the role of CaO @article{Wang2024RevealingTI, title={Revealing the intrinsic sintering mechanism of high-strength ceramsite from CFB fly ash: focus on the role of CaO}, author={Xuxu …
The ceramsite was successfully produced using MSWI fly ash and granite sawing mud. The raw material ratio and sintering condition of ceramsite was optimized. Chlorine in MG ceramsite mainly enters into the tail gas and secondary fly ash. Chlorine salts are the main chlorine speciation after sintering.
After sintering at 1050 °C, ceramsite with 40 wt% lime mud, 55 wt% coal fly ash and 5 wt% diatomite showed the optimal bulk density of 0.74 g/cm 3, 24 h-water absorption of 39.03%, apparent porosity of 49.49% …
The incombustible portion of coal that remains after burning is known as bottom or fly ash, and it has a detrimental influence on the environment. One of the possible alternatives for reducing the amount of ash deposited in landfills might be the production of useful glass–ceramic from vitrified fly ash. Glass–ceramic was …
Abstract. Municipal solid waste incinerator fly ash (IFA) reutilization is energy-intensive with expenditure and secondary fly ash (Sec-FA) generation. …
Under the optimal synthetic conditions (RM:fly ash:bentonite=60:30:10, preheating temperature of 450°C, preheating time of 10 min, sintering temperature of 1150°C, and sintering time of 25min ...
In this test, 42.5R ordinary Portland cement was used as the concrete cementitious material, and an appropriate amount of fly ash was added. Local river sand was used as the fine aggregate of ...
Compared with fly ash ceramsite, the raw materials of sludge ceramsite are widely distributed (Xie et al., 2021; Zhao et al., 2020). ... XRD, and the semi-quantitative analysis method of XRD, was conducted to investigate the sintering process of ceramsite. The results verified that during the high-temperature sintering, ...
In order to investigate the effect of sintering temperature on the characteristics of sludge ceramsite and find an optimal sintering temperature, dried sewage sludge, clay, and water glass were mixed at ratios of dried sewage sludge/clay. = 33% and water glass/clay = 15%.. Then these mixtures were heated to 850, 900, 950, …
lightweight ceramsite was evaluated. Fly ash content, additives, preheating temperature and time, sintering temperature and time, etc., were investigated. The ultra- ... and sintering of raw ceramsite were carried out in a tube furnace. The raw ceramsite samples were first preheated in the preheating zone of the tube furnace, according to pre-
Green and low-carbon materialization for dredged sediment (DS) is limited due to its low pozzolanic activity. In this study, a novel DS-based non-sintered lightweight aggregate (LWA) is developed by steel slag (SS) and fly ash (FA) activation. Process optimization is performed by the response surfaces, and the basic properties and characterization of …
Sintering temperature and time of 650 °C and 60 min / Used as phosphorus adsorbent with the best adsorption capacity of 10.2 mg/g. Shen et al. (2018a) Coal fly ash: DWTR: oyster shell = 6:4:0.8 Preheating temperature and time of 600 °C and 30 min Sintering temperature and time of 1050 °C and 8 min Grain size of 6–8 mm
The most common method of fly ash disposal is solidification-stabilization-landfill, and the most common reuse is low-value-added building materials. A novel …
High-strength ceramsite was prepared from red mud, fly ash, and bentonite without any other chemical additives by a two-stage sintering process. In addition, the …
Mi et al. [3] studied the possibility of producing high-strength ceramsite using the mixture of fly ash, bentonite and red mud, and the ceramsite with a bulk density of 994 kg/m 3 and compressive strength of 21.01 MPa was obtained when sintered at 1150 ºC for 25 min. These results show that the preparation of red mud based ceramsite is an ...
Ceramsite with a sintering-expanded surface is prepared. ... The chosen samples were roughly crushed and pulverized in a laboratory grinding machine for 5 min and then dried in an oven at 80°C until reaching a constant weight. ... and expansion performance of ceramsite filter media from dewatered sewage sludge, coal fly ash, and …
Municipal solid waste incinerator fly ash (IFA) reutilization is energy-intensive with expenditure and secondary fly ash (Sec-FA) generation. Technology innovation and deployment are necessary for better IFA reutilization. Herein, potential benefits of technology innovation by fuel substitution, waste heat recovery and Sec-FA …
In this paper, a sustainable ceramsite substrate material for phosphorus immobilization in CWs was prepared by using coal fly ash and waterworks sewage as the main material, and oyster shell as the functional additive. The performance and mechanism of phosphorus adsorption onto the prepared ceramsite were systematically investigated.
SiC was chosen as the ing agent, and river bottom silt, waste oil sludge, paint bucket slag, and fly ash were used as raw materials, to prepare lightweight ceramsite without adding any ...
پست الکترونیک: [email protected]
نشانی: شماره 1688، جاده شرقی گاوک، منطقه جدید پودونگ، شانگهای، چین.
کپی رایت © 2024.cryptod تمامی حقوق محفوظ است.نقشه سایت