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Leachate from Municipal Waste Landfill and Its Natural Degradation — A Case Study of Zub ř í , Zl í n Region

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ABSTRACT

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.

No MeSH data available.


Description of the landfill situation with the monitoring system.
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ijerph-13-00873-f001: Description of the landfill situation with the monitoring system.

Mentions: The landfill consists of artificially adapted terrain depression (erosion rill) of trapezoidal shape, with an area of 7436 m2. The landfill has currently been reclaimed and re-planted. This location was used for landfilling from 1990 to 1996, when mainly municipal waste (a total of about 30,000 m3) was deposited here. A building permit for the reclamation of the landfill had been issued in 2000, and it was completed in 2004. The landfill surface is levelled, compacted, and covered with fine-grained material. A PEHD foil, protected by geo-textile material on both sides, is applied on the levelled surface, as well as a drainage layer and soil layer with the thickness of up to 2 m. The surface is covered with tree plants. There is no degassing device in the landfill due to the nature and amount of waste. There is a bio-pond built in the landfill as part of the landfill technology for self-cleaning of leachate and rainwater. The bottom of the pond is covered with a foil, and the leachate from the landfill and rainwater from the peripheral ditches are discharged into this pond. There is an unnamed stream flowing through a pipeline below the landfill body, which leads to an already open stream bed below the landfill at the mixed water mouth from the biological pond. After about 50 m, the inflow leads into the Hamerský Stream. The Hamerský Stream flows into the Rožnovská Bečva River after 1 km. See Figure 1.


Leachate from Municipal Waste Landfill and Its Natural Degradation — A Case Study of Zub ř í , Zl í n Region
Description of the landfill situation with the monitoring system.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5036706&req=5

ijerph-13-00873-f001: Description of the landfill situation with the monitoring system.
Mentions: The landfill consists of artificially adapted terrain depression (erosion rill) of trapezoidal shape, with an area of 7436 m2. The landfill has currently been reclaimed and re-planted. This location was used for landfilling from 1990 to 1996, when mainly municipal waste (a total of about 30,000 m3) was deposited here. A building permit for the reclamation of the landfill had been issued in 2000, and it was completed in 2004. The landfill surface is levelled, compacted, and covered with fine-grained material. A PEHD foil, protected by geo-textile material on both sides, is applied on the levelled surface, as well as a drainage layer and soil layer with the thickness of up to 2 m. The surface is covered with tree plants. There is no degassing device in the landfill due to the nature and amount of waste. There is a bio-pond built in the landfill as part of the landfill technology for self-cleaning of leachate and rainwater. The bottom of the pond is covered with a foil, and the leachate from the landfill and rainwater from the peripheral ditches are discharged into this pond. There is an unnamed stream flowing through a pipeline below the landfill body, which leads to an already open stream bed below the landfill at the mixed water mouth from the biological pond. After about 50 m, the inflow leads into the Hamerský Stream. The Hamerský Stream flows into the Rožnovská Bečva River after 1 km. See Figure 1.

View Article: PubMed Central - PubMed

ABSTRACT

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.

No MeSH data available.