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Thursday, May 14, 2020 | History

2 edition of Dissolved organic matter in low-level waste leachates found in the catalog.

Dissolved organic matter in low-level waste leachates

François Caron

Dissolved organic matter in low-level waste leachates

first year of activities

by François Caron

  • 362 Want to read
  • 31 Currently reading

Published by AECL, Whiteshell Laboratories in Pinawa, Man .
Written in English

    Subjects:
  • Radioactive waste disposal -- Canada.,
  • Radioactive waste sites -- Canada.,
  • Radioactive waste disposal -- Environmental aspects -- Canada.

  • Edition Notes

    Statementby François Caron.
    SeriesTechnical record (Atomic Energy of Canada Ltd) -- 560
    ContributionsAtomic Energy of Canada Limited.
    The Physical Object
    Pagination35 p. :
    Number of Pages35
    ID Numbers
    Open LibraryOL20403392M

    BOD is defined as the amount of oxygen taken up by microorganisms (principally bacteria) in decomposing the organic material in a water sample stored in darkness for 5 days at 20°C. Water with a high BOD has a low level of dissolved oxygen. Rivers have some capacity for self-purification after pollution by biodegradable, natural organic materials. Full text of "Geological and hydrological factors for siting hazardous or low-level radioactive waste disposal facilities" See other formats.

      •In the process, large quantities of air are bubbled through wastewaters that contain dissolved organic substances in open aeration tanks. Bacteria and other types of microorganisms present in the system need oxygen to live, grown, and multiply in order to consume the dissolved organic "food" or pollutants in the waste. Loss of Soil Organic Matter and Its Restoration By William A. Albrecht Professor of Soils University of Missouri. CENTURIES before there was any science that acquainted people with the intricacies of plant nutrition, decaying organic matter, as in manure or other forms, was recognized as an effective agent in the nourishment of plants.

    Abstract. Endosulfan (6,7,8,9,10,hexachloro-1,5,5a,6,9,9a-hexahydro-6,9-methano-2,4,3-benzodioxathiepin 3-oxide), a pesticide that is highly toxic to aquatic organisms, is widely used in the cotton (Gossypium hirsutum L.) industry in Australia and is a risk to the downstream riverine used the GLEAMS model to evaluate the effectiveness of a range of management . water derived from carbon dioxide released by organic decomposition in the soil. Salinity varies with specific surface area of aquifer materials, solubility of minerals and contact time. Salinity increases with depth. The quality and type of mineral matter dissolved depend on the chemical composition and physical structure of rocks as well as.


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Dissolved organic matter in low-level waste leachates by François Caron Download PDF EPUB FB2

Abstract Surface and soil water in wetlands often contains high concentrations of dissolved organic matter. Dissolved organic matter is a complex mixture of organic substances of many types, which Author: Robert G.

Qualls. Dissolved organic matter (DOM) is defined as the organic matter fraction in solution that passes through a μm filter. Although DOM is ubiquitous in terrestrial and aquatic ecosystems, it.

The total organic matter (TOM) in terrestrial and aquatic environments consists of two operationally defined phases: particulate organic matter (POM) and dissolved organic matter (DOM). For all practical purposes, DOM is defined as the organic matter fraction in solution that passes through a μm filter (Thurman,Zsolnay, ).Cited by: @article{osti_, title = {Volatile organic compounds in groundwater and leachate at Wisconsin}, author = {Friedman, M A}, abstractNote = {The Wisconsin Department of Natural Resources, Bureau of Solid Waste Management is evaluating the need for periodic volatile organic compound (VOC) sampling at landfills.

Department staff selected 26 landfills to sample based on design, age and. A long-term waste degradation experiment has been performed with actual low-level radioactive wastes (LLRW) at the Chalk River Laboratories (CRL), to support the licensing and modelling efforts for near-surface disposal.

The wastes consist of paper, mop heads, paper towels, used clothing, etc. High-performance liquid chromatographic characterization of dissolved organic matter from low-level radioactive waste leachates F.

Caron, S. Elchuk, Z.H. Walker Journal of Cited by: constituent. Organic compounds can be of many types and have many origins. Some organics in drinking water are caused by the decay of naturally occurring vegetation.

These decay compounds are called lignins or tannins. The presence of these compounds, dissolved in water, would be part of the natural environmental condition of that water Size: KB.

Seán Moran, in An Applied Guide to Water and Effluent Treatment Plant Design, Total Dissolved Solids. Total dissolved solids (TDS) is usually low for freshwater sources, at less than ppm. Seawater and brackish (mixed fresh and sweater) water contain.

Low-level radioactive waste (LLW) comprises all radioactive waste that is not classified as high-level radioactive waste, transuranic waste, spent nuclear fuel, byproduct material [as defined in Section 11e.(2) of the Atomic Energy Act], or naturally occurring radioactive material ().This type of waste includes items that have become contaminated with radioactive material or have become.

e generation is of special concern when characterizing municipal landfill sites. The main factors contributing to leachate quantity are precipitation and recharge from ground- water and surface water. Leachate is character- istically high in organic matter as measured by chemical oxygen demand (COD) or biochemical oxygen demand (BOD).

Oxidation conditions (time, pH, and dose) were optimized to yield maximum organic removal using two leachate samples from and year-old solid waste cells. Results from this study demonstrated that Ferrate and Fenton’s reagent had similar optimum pH ranges (3–5), but different organic removal capacities, ranging from 54 to 79% of.

The fate of carbon compounds in the landfill disposal of organic matterInfluence of origin and properties of dissolved organic matter on the partition of polycyclic aromatic hydrocarbons Detailed Description of a Long-Term Low-Level Waste Degradation Experiment, MRS Proceedings,().Cited by: In the US alone, tons of municipal solid waste (MSW) was generated in (U.S.

EPA ) The majority of the waste deposited in landfills is composed of MSW, which includes food waste, yard waste, paper, plastics, metals, glass, rubber, wood, leather, textiles, etc.

decayed organic matter than can be used to improve the fertility and water-holding capacity of soil, thereby enhancing plant growth vericomposting worms are placed with organcic waste in specially designed bind; eat 50% of their weight in organic matter each day and turn it in to humus (the decayed stuff, not the "food").

3) physical chemical methods are more suitable for leachates from older landfill sites (closed for more than 5 years); 4) anaerobic treatment should be considered as a pretreatment (primary treatment) step for any leachate with concentrations of organics and BODj exceeding mg/1; 5) lagoons or waste stabilization ponds (aerobic and.

Dissolved Sulphide: WWC Suspended and Ashed Suspended Solids and Suspended Volatile Matter: WWC Total Solids: WWC Total Organic Carbon: WWC Turbidity: WWC Total and Low Level Metals by ICMS: WWC Ammoniacal Nitrogen, Total Oxidised Nitrogen, Nitrite, Nitrogen, Chloride and Orthophosphate (Anions) WWC Water Insoluble Fat (NVM.

Lead Bioavailability to Freshwater Microalgae in the Presence of Dissolved Organic Matter: Contrasting Effect of Model Humic Substances and Marsh Water Fractions Obtained by Ultrafiltration. Aquatic Geochemistry21 (), DOI: /sCited by: EPA//R/ July PARTITION COEFFICIENTS FOR METALS IN SURFACE WATER, SOIL, AND WASTE by Jerry D.

Allison,1>2 Terry L. Allison.2 'HydroGeoLogic, Inc Herndon Parkway, Suite Herndon,VA 2Allison Geoscience Consultants, Inc. Perry Lane Flowery Branch, GA Work Assignment Manager: Robert B. Ambrose, Jr., P.E. Contract No. Poor soil characteristics such as low-level organic matter and poor soil texture and structure have resulted in deterioration of the land, adversely affecting the establishment of plants and soil microbial flora and fauna (Boyer et al.JohnsonLarney and AngersSopper ).

USGS Environmental Health Mission Area Bibliography, Landfill Leachate in Alluvial Aquifers--Norman Municipal Landfill, Norman, Oklahoma. Ratasuk, N., Nanny, M.A., and Chen, L.,Characterization of solid organic matter and dissolved organic carbon isolated from landfill cores, in Preprints of Extended Abstracts Presented at the th.

Organic matter that enters the water is initially particulate and, if large enough, the particles settle to the bottom. Otherwise, they remain suspended in the water as particulate matter. Organic matter, whether it settles or remains suspended, is leached of soluble substances by the water.

This results in soluble organic matter in the water.Caron F, Elchuk S, Walker ZH () High–performance liquid chromatographic characterization of dissolved organic matter from low-level radioactive waste leachates.

J Chromatogr A – CrossRef Google ScholarCited by: 8.Plant productivity is linked closely to organic matter (Bauer and Black, ). Consequently, landscapes with variable organic matter usually show variations in productivity.

Plants growing in well-aerated soils are less stressed by drought or excess water. In soils with less compaction, plant roots can penetrate and flourish more readily.