Utilization of Natural Zeolite and Perlite as Landfill Liners for in Situ Leachate Treatment in Landfills

Ozel, Ummukulsum; Akdemir, Andaç; Ergun, Osman Nuri

doi:10.3390/ijerph9051581

Cited by 9 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are numerous other applications (Perlite Institute, 2009 ). Perlite has been studied as an ingredient in toothpaste (Collins et al, 2005 ; Stamm, 2007 ), a dietary supplement for broilers (Tatar et al, 2012 ), a component of swine-fodder (Duchstein, 1982 ), a component of landfill liners for the in situ leachate treatment of landfills (Ozel et al, 2012 ), for the removal of cadmium, nickel, and lead from aqueous solutions (Aminifard et al, 2011 ; Malakootian et al, 2011 ; Torab-Mostaedi et al, 2010 ), as a passive material in the form of ceiling tile for removal of ozone from indoor air (Cros et al, 2011 ), in mycotoxin detoxification of animal feed (Huwig et al, 2001 ), and as a component of a stormwater filter (Gironás et al, 2008 ).…”

Section: Applicationsmentioning

confidence: 99%

Perlite toxicology and epidemiology – a review

Maxim¹,

Niebo²,

McConnell

2014

Inhalation Toxicology

View full text Add to dashboard Cite

Perlite is a generic name for an amorphous volcanic alumina–silicate rock that expands by a factor of 4–20 when rapidly heated to 1400–1800 °F (760–980 °C). Both the ore and the expanded product have extensive and widespread commercial applications. Limited data on the toxicology of perlite in animal studies indicate that the LD50 (oral ingestion) is more than 10 g/kg and, from a chronic inhalation study in guinea pigs and rats, that the NOAEL for the inhalation pathway is 226 mg/m3. Health surveillance studies of workers in US perlite mines and expansion plants (including some workers exposed to levels greater than prevailing occupational exposure limits (OELs) conducted over 20 years indicate that the respiratory health of workers is not adversely affected. Studies in Turkish mines and expanding plants had generally similar results, but are more difficult to interpret because of high smoking rates in these populations. A recent mortality study of permanent residents of the island of Milos (Greece) exposed to various mining dusts (including perlite) resulted in non-significant increases in standard mortality ratios for pneumonia and chronic obstructive pulmonary disease (COPD), whereas a companion morbidity study revealed elevated odds ratios for allergic rhinitis, pneumonia, and COPD when compared to another industrial area of Greece. Residents were exposed to other mining dusts and other possible causes or contributing factors and no ambient monitoring data were presented so it is not possible to use this study for risk calculations of perlite-exposed populations. Perlite is regulated as a “nuisance dust” in most countries.

show abstract

Section: Applicationsmentioning

confidence: 99%

Perlite toxicology and epidemiology – a review

Maxim¹,

Niebo²,

McConnell

2014

Inhalation Toxicology

View full text Add to dashboard Cite

show abstract

“…The migration of these substances in water surface and rock ambient poses a major threat to the environment, especially to the quality of surface and groundwater [ 1 ]. There are studies dealing with the modelling of the migration of these substances in groundwater in Taiwan [ 2 ], along with efforts to influence the quality of leachate directly in situ using adsorbent materials based on zeolite and perlite [ 3 ]. Taking into account that landfilling is, and in the near future will continue to be, one of the most widespread methods of waste disposal, it is necessary to study this issue in detail.…”

Section: Introductionmentioning

confidence: 99%

Leachate from Municipal Waste Landfill and Its Natural Degradation—A Case Study of Zubří, Zlín Region

Václavík

Ondrasikova²,

Dvorský

et al. 2016

IJERPH

View full text Add to dashboard Cite

This work deals with the natural degradation of leachate from an old reclaimed landfill by means of a biological pond. Hamra is a municipal waste landfill with a limited formation of leachate, which has already been reclaimed. Leachate in this location is disposed of using natural biogeochemical method, and it is subsequently discharged into a surface stream. The main issue dealt with here is the long-term effectiveness of natural degradation of leachate and the limits of its use. The solutions of these fundamental questions took advantage of a database of analytical assessments collected during a long-term monitoring of the landfill site. The primary degradation trends and the long-term development have been revealed and described on the basis of these assessments. The main benefit of the biological pond is the dilution of the dominant contaminants, especially of inorganic character. In the case of ammonium ions, they show nitrification caused by their transition from the reduction into oxidizing environment. From a long term point of view, the disadvantage of natural degradation of leachate can be seen in the gradual reduction in efficiency due to the concentration of the substances or an undesired growth of water plants, which can be successfully eliminated, for example, by means of targeted aeration and by maintaining vegetation in the pond and its surroundings. The biological potential of the locality is very favorable and, despite its anthropogenic load, it creates a location with suitable living conditions for many water animals and plants. That is why it can be concluded that the efficiency of the natural biochemical cleaning elements can be considered as sufficient, taking into account the nature of the deposited waste, the quantity and quality of leachate, as well as the climate character of the locality.

show abstract