Inorganic Waste Forms for Efficient Immobilization of Radionuclides

ABSTRACTThe Environmental Restoration and Waste Management Applied Technology Program at LLNL is developing a Mixed Waste Management Facility to demonstrate treatment technologies that provide an alternative to incineration. As part of that program, we are developing final waste forms using ceramic processing methods for the immobilization of the treatment process residues. The ceramic phase assemblages are based on using Synroc D as a starting point and varying the phase assemblage to accommodate the differences in chemistry between the treatment process residues and the defense waste for which Synroc D was developed. Two basic formulations are used, one for low ash residues resulting from treatment of organic materials contaminated with RCRA metals, and one for high ash residues generated from the treatment of plastics and paper products. Treatment process residues are mixed with ceramic precursor materials, dried, calcined, formed into pellets at room temperature, and sintered at 1150 to 1200°C to produce the final waste form. This paper discusses the chemical composition of the waste streams and waste forms, the phase assemblages that serve as hosts for inorganic waste elements, and the changes in waste form characteristics as a function of variation in process parameters.

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High Resolution Observations of Ion-Milling Induced Transformation in Synthetic Hollandses

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100097259 ◽

1981 ◽

Vol 39 ◽

pp. 114-115 ◽

Cited By ~ 1

Author(s):

T. J. Headley

Keyword(s):

High Resolution ◽

Radioactive Waste Disposal ◽

Ion Milling ◽

Minor Elements ◽

Waste Forms ◽

Carbon Substrates ◽

Structural Differences ◽

Oxide Phases ◽

Argon Ions ◽

High Resolution Microscopy

Oxide phases having the hollandite structure have been identified in multiphase ceramic waste forms being developed for radioactive waste disposal. High resolution studies of phases in the waste forms described in Ref. [2] were initiated to examine them for fine scale structural differences compared to natural mineral analogs. Two hollandites were studied: a (Ba,Cs,K)-titan-ate with minor elements in solution that is produced in the waste forms, and a synthesized BaAl2Ti6O16 phase containing ∼ 4.7 wt% Cs2O. Both materials were consolidated by hot pressing at temperatures above 1100°C. Samples for high resolution microscopy were prepared both by ion-milling (7kV argon ions) and by crushing and dispersing the fragments on holey carbon substrates. The high resolution studies were performed in a JEM 200CX/SEG operating at 200kV.

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Perencanaan Sistem Pengurangan Sampah Permukiman Bantaran Sungai Cidurian Kota Bandung

Jurnal Serambi Engineering ◽

10.32672/jse.v4i2.1466 ◽

2019 ◽

Vol 4 (2) ◽

Author(s):

Raka Maulana ◽

Yulianti Pratama ◽

Lina Apriyanti

Keyword(s):

Waste Management ◽

River Basin ◽

River Flow ◽

Waste Reduction ◽

Residential Areas ◽

Community Based ◽

Inorganic Waste ◽

Waste Bank ◽

The City

<p>Some areas in the city of Bandung is an area that dilitasi by the flow of the river, to prevent the introduction of garbage into the river basin is necessary to note the waste management systems in residential areas along the river. Cidurian river has a length of 24.86 Km along the river flow. Consists of the city of Bandung and Bandung regency. Administrative regions Cidurian River past eight (8) districts, from the region in the District Kiaracondong precisely Village Babakan Babakan Sari and Surabaya populous and the most densely populated. Thus, there should be community-based waste management in the form of a reduction in resources to prevent potential entry of waste into the river basin. Planning waste reduction will be divided into two, namely the reduction of inorganic waste with waste bank then the reduction of organic waste with absorption holes biopori, and bio reactor mini determination of the reduction is determined by the results of the analysis of the sampling covers the composition and garbage, then the result of the measurement characteristics test and analysis results questionnaire.</p>

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Community Based 3R Waste Management Strategy (Reduce, Reuse, Recycle) Bantas Village, Selemadeg Timur District, Tabanan Regency

International Journal of Contemporary Research and Review ◽

10.15520/ijcrr/2018/9/09/593 ◽

2018 ◽

Vol 9 (09) ◽

pp. 21041-21049 ◽

Cited By ~ 1

Author(s):

I Putu Sudana Satria Artha ◽

Nyoman Utari Vipriyanti ◽

I Putu Sujana

Keyword(s):

Waste Management ◽

Management Strategy ◽

Swot Analysis ◽

Human Life ◽

Economic Value ◽

Community Based ◽

Waste Products ◽

Governmental Organizations ◽

Non Governmental Organizations ◽

Inorganic Waste

Garbage can be interpreted as a consequence of the activities of human life. It is undeniable, garbage will always be there as long as life activities continue to run. Every year, it can be ascertained that the volume of waste will always increase along with the increasing pattern of public consumerism. The landfill which is increasingly polluting the environment requires a technique and management to manage waste into something useful and of economic value, Bantas Village, Selemadeg Timur District, Tabanan Regency currently has a Waste Management Site (TPS3R) managed by Non-Governmental Organizations (KSM ) The source of waste comes from Households, Stalls, Restaurant Entrepreneurs, Schools, Offices and Ceremonies which are organic and inorganic waste. The waste management system at Bantas Lestari TPS with 3R system is Reduce (reduction of waste products starts from the source), Reuse (reuse for waste that can be reused) and Recycle (recycling waste) to date it is still running but not optimal. The method used in this research is descriptive quantitative with data analysis using SWOT analysis. This study produces a Waste Management Strategy which is the result of research from the management aspect, aspects of human resources and aspects of infrastructure facilities.

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The Formation and Modeling of Colloids from the Corrosion of Nuclear Waste Forms

10.1557/proc-1124-q11-01 ◽

2008 ◽

Author(s):

Edgar Buck ◽

Rick S. Wittman

Keyword(s):

Nuclear Waste ◽

Waste Forms ◽

Nuclear Waste Forms

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THE PRODUCTION OF SHAPED GLASS-CERAMIC MATERIALS FROM INORGANIC WASTE PRECURSORS USING CONTROLLED ATMOSPHERIC DC PLASMA VITRIFICATION AND CRYSTALLISATION

High Temperature Material Processes An International Quarterly of High-Technology Plasma Processes ◽

10.1615/hightempmatproc.v7.i3.100 ◽

2003 ◽

Vol 7 (3) ◽

pp. 367-372 ◽

Cited By ~ 8

Author(s):

David Deegan ◽

Chris Chapman ◽

Chris Bowen

Keyword(s):

Glass Ceramic ◽

Ceramic Materials ◽

Dc Plasma ◽

Glass Ceramic Materials ◽

Inorganic Waste ◽

Shaped Glass

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A Centralized Hazardous Waste Treatment Plant: The Facilities of the Zvsmm at Schwabach as an Example

Water Science & Technology ◽

10.2166/wst.1994.0416 ◽

1994 ◽

Vol 29 (8) ◽

pp. 235-250 ◽

Cited By ~ 2

Author(s):

Norbert Amsoneit

Keyword(s):

Hazardous Waste ◽

Waste Treatment ◽

Treatment Plant ◽

Waste Incinerator ◽

Physical Plant ◽

Treatment Centre ◽

Hazardous Waste Treatment ◽

Waste Treatment Plant ◽

Pre Treatment ◽

Inorganic Waste

As a rule, hazardous waste needs a pre-treatment, either a thermal or a chemical-physical one, before it can be disposed of at a landfill. The concentration of different kinds of treatment facilities at a Centralized Hazardous Waste Treatment Plant is advantageous. The facility of the ZVSMM at Schwabach is presented as an outstanding example of this kind of Treatment Centre. The infrastructure, the chemical-physical plant with separate lines for the treatment of organic and inorganic waste and the hazardous waste incinerator are described. Their functions are discussed in detail. Emphasis is laid on handling the residues produced by the different treatment processes and the final disposal.

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