Lixiviat d'enfouissement

Le lixiviat de décharge est généré sous forme de composé produit lors de la biodégradation des déchets et est un produit à la fois de l'eau de pluie lorsqu'elle percole à travers la baguette résiduelle dans l'eau inhérente aux déchets eux-mêmes. En raison du mélange de déchets solides déposés dans les décharges, le lixiviat comprend des variétés de polluants nocifs. Par conséquent, divers processus de traitement physico-chimique avancés ont été développés. Ces processus sont principalement composés de processus biologiques et physico-chimiques et ils sont très efficaces et économiques au stade précoce de la mise en décharge. Mais à mesure que la décharge vieillit, les caractéristiques du lixiviat des décharges se modifient pour avoir des matières organiques biodégradables plus faibles et des composés azotés hautement concentrés. Dans ce cas, l'oxydation biologique des composés organiques et la dénitrification des composés azotés ont à peine fonctionné. Pour résoudre ces problèmes, nous avons utilisé le processus de membrane intégrée et adopté à la fois MBR pour améliorer l'efficacité d'élimination des matières organiques biodégradables et le taux de nitrification. Par conséquent, la qualité de l'eau des effluents a respecté les limites de réglementation améliorées et la plainte continue du public a été résolue.

Caractérisation du lixiviat d'enfouissement

La nature du lixiviat de la décharge varie avec la durée de fonctionnement de la décharge, qui est principalement déterminée par le processus de stabilisation de la décharge. Le processus de stabilisation des décharges est généralement divisé en cinq étapes:

1. phase de réglage initial (génération de CO2, eau, chaleur)
2. phase de transition (nitrates, sulfates sont respectivement réduits en azote (N2) et sulfure d'hydrogène (H2S), et le lixiviat a commencé à diminuer son pH
3. phase acide
4. Phase de fermentation méthane (H2, CO2, COD)
5. phase de maturation

Les identités des polluants nocifs

1. Matière organique dissoute (DOM)
2. macro-composants inorganiques
3. Métaux lourds (par exemple, Cr2 ,Cd2 ,Cu2 ,Zn2 ,Pb2)

Parce que la quantité d'eau et le changement de qualité de l'eau ont peu d'influence, l'application deFiltration de membrane en céramiqueTechnologie dans le lixiviat d'enfouissementSystème de traitementPeut garantir efficacement la stabilité de l'effluent et peut assurer l'efficacité du traitement du lixiviat des décharges et des différentes étapes de l'enfouissement.

Avantages de la technologie de séparation de membrane

1. stabilité chimique, acide, alcali, résistance aux solvants organiques;
2. filtration à écoulement croisé, pas facile à former un gâteau, fonctionnement continu pendant une longue période;
3. résistance mécanique pour résister à des dizaines de pression externe atmosphérique;
4. La distribution asymétrique de la taille des pores peut être délavée, forte capacité de régénération;
5. longue durée de vie, plus de cinq ans de lixiviat d'enfouissement.

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[12] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Db\Table.php
[13] C:\wwwroot\jiuwumembrane.com\models\Table.php
[14] C:\wwwroot\jiuwumembrane.com\models\Abstract\Model.php
[15] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Db.php
[16] C:\wwwroot\jiuwumembrane.com\models\Abstract\Tree.php
[17] C:\wwwroot\jiuwumembrane.com\models\Abstract\User.php
[18] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Cookie.php
[19] C:\wwwroot\jiuwumembrane.com\librarys\Suco\View.php
[20] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Helper.php
[21] C:\wwwroot\jiuwumembrane.com\librarys\Suco\View\Template.php
[22] C:\wwwroot\jiuwumembrane.com\librarys\Suco\File.php
[23] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Helper\Interface.php
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Use Memory: 8.7MB

Time-consuming: 1.10894 ms

Lixiviat d'enfouissement

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[QUERYS RESOURCE ID #56]

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