Review of state of the art methods for measuring water in landfills

Imhoff, Paul T.; Reinhart, Debra R.; Englund, Marja; Guérin, Roger; Gawande, Nitin; Han, Bing; Jonnalagadda, Sreeram; Townsend, Timothy G.; Yazdani, Ramin

doi:10.1016/j.wasman.2006.03.024

Cited by 92 publications

(52 citation statements)

References 27 publications

(43 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…And then five samples were used to simulate. MCNP was run until generated 1×10 9 histories on neutrons mode. The energy distribution of pulses created in the BGO detector was recorded by F4 tally.…”

Section: Moisture Contents Measurementmentioning

confidence: 99%

See 1 more Smart Citation

A Method for Measuring Moisture Content in Landfills Based on PGNAA Technique

Ling¹,

Li²,

Zhang³

et al. 2017

Proceedings of the 2017 2nd International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 20

View full text Add to dashboard Cite

Abstract.A new method based on PGNAA technique has been proposed for moisture content and elements concentration determination in landfills. Due to the complexity of MSW component, the compounds of polyethylene balls, glass balls and water were selected as the MSW alternatives for research. By changing the proportion of polyethylene and glass ball, water contents of five samples were regulated to 40.522%, 47.575%, 55.168%, 63.369%, 72.251%, respectively. Based on a new set-up was developed to validate the method by MCNP simulations and experimental researches. The results show that the counts of hydrogen peak increase with the increase of the moisture content for samples, and good linearity can be figured out between the counts of hydrogen peak.

show abstract

Section: Moisture Contents Measurementmentioning

confidence: 99%

“…Among them high concentration of salt can affect the growth and degradation of microorganisms. In recent years, considerable efforts have been devoted to developing set-ups to measure moisture content and element concentration in landfills [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A Method for Measuring Moisture Content in Landfills Based on PGNAA Technique

Ling¹,

Li²,

Zhang³

et al. 2017

Proceedings of the 2017 2nd International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 20

View full text Add to dashboard Cite

show abstract

“…A new anaerobic test cell was constructed (1) to evaluate the performance of a nearsurface high permeability layer for enhancing landfill gas collection and (2) to test an automated IBM-IS for collecting landfill gas during periods of barometric pressure change. While funds from a separate project on peaking-power operations were used to construct this new anaerobic cell, this cell was critical to this project.…”

Section: New Anaerobic Test Cellmentioning

confidence: 99%

Intelligent Bioreactor Management Information System (IBM-IS) for Mitigation of Greenhouse Gas Emissions

Imhoff¹,

Yazdani²,

Augenstein³

et al. 2010

View full text Add to dashboard Cite

Methane is an important contributor to global warming with a total climate forcing estimated to be close to 20% that of carbon dioxide (CO2) over the past two decades. The largest anthropogenic source of methane in the US is "conventional" landfills, which account for over 30% of anthropogenic emissions. While controlling greenhouse gas emissions must necessarily focus on large CO2 sources, attention to reducing CH4 emissions from landfills can result in significant reductions in greenhouse gas emissions at low cost. For example, the use of "controlled" or bioreactor landfilling has been estimated to reduce annual US greenhouse emissions by about 15-30 million tons of CO2 carbon (equivalent) at costs between $3-13/ton carbon. In this project we developed or advanced new management approaches, landfill designs, and landfill operating procedures for bioreactor landfills. These advances are needed to address lingering concerns about bioreactor landfills (e.g., efficient collection of increased CH4 generation) in the waste management industry, concerns that hamper bioreactor implementation and the consequent reductions in CH4 emissions. Collectively, the advances described in this report should result in better control of bioreactor landfills and reductions in CH4 emissions. Several advances are important components of an Intelligent Bioreactor Management Information System (IBM-IS).5 III. Executive SummaryMethane is an important contributor to global warming with a total climate forcing estimated to be close to 20% that of carbon dioxide (CO2) over the past two decades. The largest anthropogenic source of methane in the US is "conventional" landfills, which account for over 30% of anthropogenic emissions. One means of mitigating methane emissions is to operate landfills as "controlled landfills" or "bioreactors." Here, biological conditions in the waste are optimized allowing more rapid and complete waste decomposition. In "anaerobic bioreactors" methane generation is enhanced through liquid addition. High efficiency capture of methane is utilized to maximize fuel energy recovery and minimize fugitive emissions. In "aerobic bioreactors" air and liquid are introduced in the landfill and the combined effects of heat and oxygen inhibit methane formation. Both "controlled" landfill operations hold promise for mitigating fugitive methane emissions from landfills.A recent NETL sponsored economic study of anaerobic controlled landfilling estimated that such landfilling could reduce annual US greenhouse emissions by about 15-30 million tons of CO2 carbon (equivalent) at costs between $3-13/ton carbon. Given the promise of this technology, several bioreactor landfills have been constructed in the United States, although most are fieldscale research landfills. While a few commercial bioreactor landfills have been built, the waste management industry has yet to embrace this technology because of lingering concerns about the capture of fugitive greenhouse gases, how to manage liquid addition to maintain optimal moist...

show abstract

“…Nevertheless, the method is time-consuming and destructive. Several researchers (3)(4)(5)(6)(7)(8)(9) have claimed that some of the SWC estimation methods use physical properties, such as electrical resistance, temperature, capacitance, dielectric permittivity or spectrometry. Even though the methods are efficient, they are relatively expensive, which limits their widespread application.…”

Section: Introductionmentioning

confidence: 99%

Performance of Soil Water Content Using Ground Penetrating Radar with Different Antenna Frequencies

Karim¹,

Kamaruddin²,

Hasan³

2018

IJET

View full text Add to dashboard Cite

Accurate measurements of Soil Water Content (SWC) with applicable and relevant support are essential in many fields of earth and soil engineering research. Ground Penetrating Radar (GPR) is a geophysical tool that measures and provides accurate results for determination of the SWC. To prove the accuracy of SWC measurement using GPR, a field survey was performed in peat soil. This paper presents a fieldwork survey with the aim of assessing the SWC measurement using GPR. The survey work was conducted at Johor Bharu using different antenna frequencies (250 and 700 MHz). Five profiles, which is 5m by 5m in length, were scanned along an eastwest direction with a common offset at an equal spacing of 1m. To measure the SWC using GPR, the researchers used the velocity from the GPR's signal from the receiving antenna to the soil. Statistical analysis was carried out based on the dielectric permittivity and SWC. Schaap's equation and Roth's equation were used to distinguish the relative dielectric permittivity of the soil to SWC. The results of this study show the linear function, for the measured SWC. The validation graph shows that at a frequency of 250 MHz, the depth of penetration was greater compared to the frequency of 750 MHz. These results, suggest that a higher frequency will give higher resolution but lower depth penetration.

show abstract

Review of state of the art methods for measuring water in landfills

Cited by 92 publications

References 27 publications

A Method for Measuring Moisture Content in Landfills Based on PGNAA Technique

A Method for Measuring Moisture Content in Landfills Based on PGNAA Technique

Intelligent Bioreactor Management Information System (IBM-IS) for Mitigation of Greenhouse Gas Emissions

Performance of Soil Water Content Using Ground Penetrating Radar with Different Antenna Frequencies

Contact Info

Product

Resources

About