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  2. Toxicity characteristic leaching procedure - Wikipedia

    en.wikipedia.org/wiki/Toxicity_characteristic...

    Toxicity characteristic leaching procedure (TCLP) is a soil sample extraction method for chemical analysis employed as an analytical method to simulate leaching through a landfill. The testing methodology is used to determine if a waste is characteristically hazardous, i.e., classified as one of the "D" listed wastes by the U.S. Environmental ...

  3. Bioreactor landfill - Wikipedia

    en.wikipedia.org/wiki/Bioreactor_landfill

    Landfills are the primary method of waste disposal in many parts of the world, including United States and Canada.Bioreactor landfills are expected to reduce the amount of and costs associated with management of leachate, to increase the rate of production of methane (natural gas) for commercial purposes and reduce the amount of land required for land-fills.

  4. Leachate - Wikipedia

    en.wikipedia.org/wiki/Leachate

    One method of leachate management that was more common in uncontained sites was leachate re-circulation, in which leachate was collected and re-injected into the waste mass. This process greatly accelerated decomposition and therefore gas production and had the impact of converting some leachate volume into landfill gas and reducing the overall ...

  5. Landfill liner - Wikipedia

    en.wikipedia.org/wiki/Landfill_liner

    The primary forms of mechanical degradation associated with geomembranes result from insufficient tensile strength, tear resistance, impact resistance, puncture resistance, and susceptibility to environmental stress cracking (ESC). The ideal method of assessing the amount of liner degradation would be by examining field samples over their ...

  6. Septic drain field - Wikipedia

    en.wikipedia.org/wiki/Septic_drain_field

    Just as a septic tank is sized to support a community of anaerobic organisms capable of liquefying anticipated amounts of putrescible materials in wastewater, a drain field should be sized to support a community of aerobic soil microorganisms capable of decomposing the anaerobic septic tank's effluent into aerobic water.

  7. Leaching (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Leaching_(chemistry)

    Biological substances can experience leaching themselves, [2] as well as be used for leaching as part of the solvent substance to recover heavy metals. [6] Many plants experience leaching of phenolics, carbohydrates, and amino acids, and can experience as much as 30% mass loss from leaching, [5] just from sources of water such as rain, dew, mist, and fog. [2]

  8. 'It could have been my son': Parents to protest over students ...

    www.aol.com/could-son-parents-protest-over...

    Family members and protesters are set to gather Sunday afternoon at a Cracker Barrel in Maryland, where a group of special education students received what the restaurant later called ...

  9. OECD Guidelines for the Testing of Chemicals - Wikipedia

    en.wikipedia.org/wiki/OECD_Guidelines_for_the...

    Sediment-Water Chironomid Life-Cycle Toxicity Test Using Spiked Water or Spiked Sediment 234: Fish Sexual Development Test 235: Chironomus sp., Acute Immobilisation Test 236: Fish Embryo Acute Toxicity (FET) Test 237: Honey Bee (Apis Mellifera) Larval Toxicity Test, Single Exposure 238: Sediment-Free Myriophyllum Spicatum Toxicity Test 239

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