Performance of a sanitary landfill leachate treatment system with effluent recirculation

被引：6

作者：

Martins, Claudia Lavina ^{[1
]}

de Castilhos Junior, Armando Borges ^{[2
]}

Ribeiro da Costa, Rejane Helena ^{[3
]}

机构：

[1] Univ Fed Santa Catarina, Ctr Tecnol, Dept Engn Sanit & Ambiental, BR-88010970 Florianopolis, SC, Brazil

[2] Conselho Nacl Desenvolvimento Cient & Tecnol CNPq, Campinas, SP, Brazil

[3] CNPq, Campinas, SP, Brazil

来源：

ENGENHARIA SANITARIA E AMBIENTAL | 2010年 / 15卷 / 04期

关键词：

sanitary landfill leachate; stabilization ponds; recirculation; ammonium removal; detoxification; ACUTE TOXICITY;

D O I：

10.1590/S1413-41522010000400013

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

The objective of this study was to evaluate the performance of a landfill leachate treatment system, at pilot scale, formed by three in series ponds (L1, L2, and L3) followed by a rock filter. Three operational conditions were studied, assessing the effluent recirculation effect from L3 to L1: 0, 50 and 100% of the flow rate. The system assimilated well the load fluctuations, showing removal efficiencies over 80% for BOD(F), 70% for COD(T) and 98% for ammonia. In the L2 pond there was partial nitrification with nitrite accumulation. It was observed an outstanding presence of the Chlamydomonas gender in photosynthetic ponds L2 and L3. A reduction of the toxicity from the landfill leachate was observed, with reduction of over 95% in the system output. The better removal efficiency for the three studied operational conditions was obtained for 100% of recirculation.

引用

页码：401 / 410

页数：10

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