Bonding Material Containing Ashes After Domestic Waste Incineration for Cementation of Radioactive Waste

2007 ◽  
Author(s):  
S. A. Dmitriev ◽  
A. P. Varlakov ◽  
O. A. Gorbunova ◽  
A. E. Arustamov ◽  
A. S. Barinov
Keyword(s):  
Radioactive Waste ◽  
Toxic Elements ◽  
Waste Incineration ◽  
Heat Emission ◽  
Compound Structure ◽  
Domestic Waste ◽  
Bonding Material ◽  
Heat Quantity ◽  
Mineral Additives ◽  
Toxic Industrial Waste

It is known that cement minerals hydration is accompanied with heat emission. Heat of hardening influences formation of a cement compound structure and its properties. It is important to reduce the heat quantity at continuous cementation of waste and filling of compartments of a repository or containers by a cement grout. For reduction of heating, it is necessary to use cement of mineral additives (fuel ashes, slag and hydraulic silica). Properties of ashes after domestic waste incineration can be similar to ones of fly fuel ashes. However, ash after domestic waste incineration is toxic industrial waste as it contains toxic elements (As, Cd, Hg, Pb, Sb, Zn). Utilization of secondary waste (slag and ash) of combustion plants is an important environmental approach to solving cities’ issues. Results of the research have shown that ashes of combustion plants can be used for radioactive waste conditioning. Coprocessing of toxic and radioactive waste is ecologically and economically effective. At SIA “Radon”, experimental batches of cement compositions are used for cementation of oil containing waste.

A review of domestic waste management policy and law in Singapore

2021 ◽  
Vol 24 (1) ◽  
pp. 90-119
Author(s):  
Rosie Syme
Keyword(s):  
Waste Management ◽  
Management System ◽  
Waste Incineration ◽  
Legal Framework ◽  
Management Policy ◽  
Domestic Waste ◽  
Waste Management System ◽  
Waste Management Policy ◽  
Primary Means ◽  
The Government

An effective waste management system is, and has always been, essential infrastructure, particularly given the potential for waste to adversely impact the surrounding environment. In recent decades, however, there has been growing awareness of the scale, breadth and immediacy of those adverse impacts, and of the unsustainability of the enormous (and increasing) amount of waste society generates. Governments around the world have mobilised and there has been a widespread shift towards policies promoting circular economies, waste minimisation and maximised resource efficiency. Singapore is a case in point; despite having a traditionally high waste output and a waste management system dependent on waste incineration as the primary means of disposal, Singapore has committed to a zero waste future. This article presents a review of domestic waste management policy and law in Singapore. Several gaps in the legal framework are identified and considered against the broader context, leading to the conclusion that there is a material environmental vulnerability in the legal framework that should be redressed in order to entrench environmental protections and to align the law with Singapore's policy ambitions. Notwithstanding this deficiency, it is hard not to be optimistic about the future of domestic waste management in Singapore, as the government has made an ambitious policy commitment and appears to be pursuing it with vigour.

scholarly journals Purification System of Domestic Waste Incineration Flue Gas

2020 ◽  
Vol 514 ◽  
pp. 032063
Author(s):  
Wenbo Pan ◽  
Shaotao Zhong ◽  
Man Geng ◽  
Dingsheng Chen
Keyword(s):  
Flue Gas ◽  
Waste Incineration ◽  
Domestic Waste ◽  
Purification System

scholarly journals Use of Alternative Cover Materials to Control Surface Emissions (H2S and VOCs) at an Engineered Landfill

Detritus ◽  
2020 ◽  
pp. 118-126
Author(s):  
Yann Le Bihan ◽  
David Loranger-King ◽  
Nicolas Turgeon ◽  
Nadine Pouliot ◽  
Nicolas Moreau ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Bottom Ash ◽  
Waste Incineration ◽  
Control Surface ◽  
Quebec City ◽  
Flux Chamber ◽  
Domestic Waste ◽  
Area Source ◽  
Volatile Organic

Between 2010 and 2015, the Bellechasse Regional County Municipality (Bellechasse RCM) was affected by particularly noxious odors issuing from its Municipal Solid Waste Landfill (Bellechasse RCM MSWL) in Armagh, Canada. A study carried out in 2015-2016 by Centre de recherche industrielle du Québec (CRIQ) confirmed that it was still possible for hydrogen sulfide (H2S) emissions to cause odor issues in and around the site. The experimental project carried out by CRIQ in cooperation with Bellechasse RCM, Englobe, Quebec City and the Regroupement des récupérateurs et des recycleurs de matériaux de construction et de démolition du Québec (represented by AIM Éco-centre) made it possible to test three (3) different industrial residue as an alternative cover materials on site and study how they controlled H2S emissions, volatile organic compounds (VOCs) and odors at the Bellechasse RCM’s landfill. The site was monitored from November 2016 to September 2017 to confirm the effectiveness of alternative biofiltration cover materials (soil + compost), domestic waste incineration bottom ash and 0 to 2.5-inch concrete residues and to compare the results with the sand cover currently used as the cover material. Effectiveness was determined by measuring the Area Source Emission Rate (ASER) with a 3 m x 3 m static flux chamber developed for the project. Methane measurements were concomitantly taken to confirm that the biogas could escape through the cover materials. The monitoring results made it possible to demonstrate that domestic waste incineration bottom ash as well as 0-2.5 in. concrete received the highest load of H2S and showed an H2S capture performance of greater than 83ϿFor volatile organic compounds, materials such as 0-2.5 in. concrete and the alternative biofiltration cover materials were most effective for capture (greater than 73Ͽfor the highest loads. The lowest content of CH4 after covering was measured for the alternative cover materials. The site where the incineration bottom ash was used managed to decrease odors by ±200 odor units. Overall, we have demonstrated in this project, the capacity of different alternative cover materials under real condition for the control of gas emissions from landfill.

scholarly journals Use of Slag from the Combustion of Solid Municipal Waste as A Partial Replacement of Cement in Mortar and Concrete

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1593
Author(s):  
Monika Czop ◽  
Beata Łaźniewska-Piekarczyk
Keyword(s):  
Blast Furnace ◽  
Portland Cement ◽  
Municipal Solid Waste ◽  
Silica Fume ◽  
Blast Furnace Slag ◽  
Waste Incineration ◽  
Municipal Solid Waste Incineration ◽  
Granulated Blast Furnace Slag ◽  
Mineral Additives ◽  
Furnace Slag

In Europe, the use of wastes in the cement and construction industry follows the assumptions of sustainability and the idea of circular economy. At present, it is observed that cement plants introduce wastes to the cement in the form of so-called mineral additives. The most often used mineral additives are: fly ash with silica fume, granulated blast furnace slag and silica fume. The use of mineral additives in the cement is related to the fact that the use of the most expensive component of cement—Portland cement clinker—is limited. The purpose of the article is a preliminary evaluation of the suitability of slag from the municipal solid waste incineration plant for its use as a replacement of cement. In this article, slag from the municipal solid waste incineration (MSWI) replaces cement in the quantity of 30%, and presents the content of oxides and elements of slag from the MSWI. The obtained results are compared to the requirements that the crushed and granulated blast furnace slag need to meet to be suitable for use as an additive of type II to the concrete. The conducted analyses confirmed that the tested slag meets the requirements for the granulated blast furnace slag as an additive to the concrete in the following parameters: CaO ≤ 18.0%, SO3 ≤ 2.5% and Cl ≤ 0.1%. At the same time, mechanical features were tested of the designed mortars which consisted of a mixture of Portland cement (CEM I) with 30% of slag admixture. The designed mortar after 28 days of maturing reached a compressive strength of 32.0 MPa, and bending strength of 4.0 MPa. When compared to the milled granulated blast furnace slag (GBFS), the obtained values are slightly lower. Furthermore, the hardened mortars were subject to a leachability test to check the impact on the environment. Test results showed that the aqueous extracts from mixtures with 30% of slag admixtures slightly exceed the limits and do not pose a sufficiant threat to the environment as to eliminate the MSWI slag from economical use.

scholarly journals Volume Reduction and Stabilization of Radioactive Waste Incineration Ash

2006 ◽  
Vol 53 (4) ◽  
pp. 171-177
Author(s):  
Hidemi KOYAMA ◽  
Masayuki KOBAYASHI ◽  
Masayuki HORIO
Keyword(s):  
Radioactive Waste ◽  
Waste Incineration ◽  
Volume Reduction

Evaluation of Green Cement Manufacturing Seeking Joint Treatment for Urban Refuse

2013 ◽  
Vol 567 ◽  
pp. 143-148 ◽  
Author(s):  
Yue Qin Tang
Keyword(s):  
Waste Treatment ◽  
Raw Materials ◽  
Carbon Dioxide Emission ◽  
Waste Incineration ◽  
National Standards ◽  
Cement Kiln ◽  
Domestic Waste ◽  
Cement Production ◽  
Cement Manufacturing ◽  
Cement Factories

Sanitary landfill, Burning, Compost are the main method to dispose gabage in China.If urben refuse is put into the cement kiln, processing it, producing cement, it will benefit all. This mature method has no influence on neither the cement production nor the quality of cement products,however the indexes of all emissions in the manufacturing meet the national standards. Statistics show the heat generated by every ton of waste is equal to that of 183kg standard coals; the cinders are mixed in cement during the treatment process, thus 107kilograms substitute raw materials can be generated by every ton of waste, and 6 to 7 percent are added. Moreever, it reduces carbon dioxide emission 8000 tons for every 10,000 tons waste. This paper concludes: the utilization of cement kiln to incinerate domestic waste has obvious advantages in environmental protection and total investment does not cost much. The municipal engineering construction has the priority to use the products from domestic treatment cement factories, and domestic waste incineration cement factories should be under self-management. Also supportive policies as well as the readjustment of waste treatment management and interest pattern can promote the development of treating urban domestic waste by cement production.

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