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Showing 1 to 20 of 80 for “"Leachates"”.
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Modern landfill leachates – quality and treatment
… metals from leachate. The main difference in two leachates from landfills with less than 10 % organic carbon in the waste in relation to leachates from older landfills containing municipal solid waste was the extremely low ammonium content. Very low dissolved organic carbon content was also …
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An investigation of recalcitrant organic compounds in leachates
… of recalcitrant organic compounds in leachates and undertakes a feasibility study of the possible use of UV absorption and fluorescence spectroscopy for a rapid and economical compositional analysis of recalcitrant organic compounds. Two laboratory experiments are carried out in this …
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Treatment of Landfill leachates using anion exchange resins
Landfill leachates are often discharged to wastewater treatment plants (WWTPs) but their highly varied composition makes their treatment in WWTPs difficult. Landfill leachates contain bio-refractory organic matter which easily passes the biological treatment processes at WWTPs and increases the …
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Electrical resistivity of sandy soil with water, leachates and seawater
… higher than the electrical resistivity of water, leachates or any liquid effluents which may permeate the landfill foundation material. Additionally, the geotechnical properties of a soil exhibit a close relationship with its electrical resistivity values for different conditions. This thesis …
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Investigating the endocrine disrupting potential and cytotoxic effects of packaging leachates and plasticisers
… the potential for endocrine disrupting leachates to be present. This thesis assessed novel naturally produced bio-based polymers that are currently being explored as a potentially safer alternative to current synthetic plastics using in vitro bioassays. <br/><br/>The in vitro bioassays …
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Interaction of gold mine taillings leachates with soil and geochemical partitioning of toxic metal species
Department of Ecology and Resource Management
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Characterization and treatment of organic matter, UV quenching substances, and organic nitrogen in landfill leachates
Landfill leachates are often treated on-site before disposal to municipal wastewater treatment plants, although variations in leachate composition and organic loading continue to have negative impacts on downstream treatment processes. Leachate samples were collected from four landfills both before …
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The Effects Of Waste Leachates On The Hydraulic Conductivity Of Natural Clays (volumes I And Ii)
… natural clays from Sarnia, Ontario, and various leachates ranging from municipal solid waste leachate to concentrated organic solvents. The studies were performed using specially designed fixed-ring permeameters that allowed controlling confining effective stresses, volume changes in the soil …
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Two - Stage AnMBR for Removal of UV Quenching Organic Carbon from Landfill Leachates: Feasibility and Microbial Community Analyses
… the US was landfilled. The treatment of landfill leachates, generated by percolation of water through the landfill, primarily due to precipitation, has been found to be one of the major challenges associated with landfill operation and management. Currently, leachates from most landfills are …
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Characterization and treatment of UV quenching substances and organic nitrogen in landfill leachates and thermal hydrolysis/anaerobic digestion centrate
Landfill leachates and thermal hydrolysis pretreated anaerobic digestion centrate can quench UV light at publicly owned treatment works (POTWs). Increased eutrophication, has led to tightening of nutrient discharge limits in some regions of the country. Biologically recalcitrant organic nitrogen, …
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Elemental Characterization of Municipal Solid Waste Incinerator Ash and Its Leachates Using Neutron Activation Analysis and Inductively Coupled Plasma Atomic Emission Spectroscopy
Incineration of municipal solid waste (MSW) is an increasingly attractive option for dealing with the burgeoning quantity of solid waste generated in the West. A combination of neutron activation analysis (NAA), inductively coupled plasma (ICP), and x-ray fluorescence (XRF) are used to analyze a …
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ΜΕΛΕΤΗ ΧΑΡΑΚΤΗΡΙΣΜΟΥ ΤΩΝ ΣΤΕΡΕΩΝ ΒΙΟΜΗΧΑΝΙΚΩΝ ΑΠΟΒΛΗΤΩΝ ΠΕΡΙΟΧΗΣ ΘΕΣΣΑΛΟΝΙΚΗΣ ΚΑΙ ΚΑΤΕΡΓΑΣΙΑΣ ΑΥΤΩΝ ΓΙΑ ΑΣΦΑΛΗ ΔΙΑΘΕΣΗ ΣΤΟ ΠΕΡΙΒΑΛΛΟΝ
… DETERMINE WHETHER THE WASTES PRODUCE POLLUTING LEACHATES WHENLANDFILLED OF THE WASTES WAS MANAGED BY APPLICATION OF THE US-EPA EXTRACTIVE PROCEDURE OF TOXICITY. ONE OF THE WASTES WAS CLASSIFIED AS TOXIC, AS HAZARDOUS, ONE AS POTENTIALLY HAZARDOUS AND THE REST WERE CLASSIFIED AS WASTES WITH …
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Uranium Leached From Pre-1970's Ceramic Dinnerware
… content of various uranium-glazed dinnerware leachates, and then to determine a quantitative method for uranium analysis of those leachates and determine if there is a correlation between the two quantities. Uranium was analyzed with a computer-interfaced radiation monitor. Results show that …
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Management strategy of landfill leachate and landfill gas condensate
… the removal of humic substances from landfill leachates. Leachate samples treated in this manner could usually meet the UV transmittance requirement of the POTWs. Also, nitrogen species in landfill leachates under various stabilization states were investigated. Although the effect of landfill …
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Bioprospecting of plants species with potential to uptake inorganic chemical species from gold mine tailings and acid mine drainage
… First batch of samples of plants, water leachates and mine tailings were collected from Crown Mine within Witwatersrand gold fields in Johannesburg, South Africa while the second batch of samples of plants, water and sediments were collected from the mine water discharging points and …
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The remediation of tributyltin-contaminated dredgins and waters
… were developed for sediments and sediment leachates.<br/>For the sediments, a triple extraction followed by derivatisation and measurement by gas chromatography with pulsed flame photometric detection was employed, avoiding the lengthy concentration step of the organic layer. The TBT …
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Empirical investigation of water pollution control through use of Phragmites australis
… electron microscopy (TEM) respectively. Leachates from contaminated plant biomass were mixed with silver nitrate to assess the manufacture of metal nanoparticles as an added value step in the process from remediation to biomass disposal. Silver nanoparticles were readily manufactured by …
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A geochemical analysis of municipal solid waste ash
… of literature values showed that field MSW ash leachates contained higher concentrations of soluble salts and lower concentrations of magnesium, iron, zinc, copper, and nickel than uncombusted refuse leachates. Comparison of chromium, cadmium, lead, and arsenic concentrations did not clearly …
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