Antibiotic resistome in a landfill leachate treatment plant and effluent-receiving river

Chemosphere ◽  
2020 ◽  
Vol 242 ◽  
pp. 125207 ◽  
Author(s):  
Jia-Ying Wang ◽  
Xin-Li An ◽  
Fu-Yi Huang ◽  
Jian-Qiang Su
Keyword(s):  
Landfill Leachate ◽  
Treatment Plant ◽  
Leachate Treatment ◽  
Receiving River

Anodic Oxidation of Effluents from Stages of MBR-UF Municipal Landfill Leachate Treatment Plant

2020 ◽  
Vol 37 (10) ◽  
pp. 702-714
Author(s):  
Zubeda Ukundimana ◽  
Mehmet Kobya ◽  
Philip Isaac Omwene ◽  
Erhan Gengec ◽  
Orhan Taner Can
Keyword(s):  
Anodic Oxidation ◽  
Landfill Leachate ◽  
Treatment Plant ◽  
Leachate Treatment ◽  
Municipal Landfill

Pilot study for the potential application of a shortcut nitrification and denitrification process in landfill leachate treatment with MBR

2006 ◽  
Vol 6 (6) ◽  
pp. 147-154 ◽  
Author(s):  
K.J. An ◽  
J.W. Tan ◽  
L. Meng
Keyword(s):  
Pilot Study ◽  
Landfill Leachate ◽  
Ammonia Oxidation ◽  
Carbon Sources ◽  
Treatment Plant ◽  
Optimum Operating ◽  
Leachate Treatment ◽  
Optimum Operating Condition ◽  
Nitrification And Denitrification ◽  
Denitrification Process

An advanced nitrogen removal pilot study was performed in China's Xia Ping Landfill Leachate Treatment Plant to undertake shortcut nitrification and denitrification with the Membrane Bio-reactor (MBR) process. It was found that the MBR process used 25% less of the oxygen and 40% less of the external carbon sources, compared to the conventional nitrification and denitrification process. The key feature of the MBR process is that it provides an environment more favorable for ammonia oxidation bacterium (AOB) than for nitrite oxidation bacterium (NOB) through controlling loading, pH, temperature, dissolved oxygen concentration (DO), and NH3 inhibition. Optimum operating condition was examined through continuous running of the pilot MBR, and it was found that a minimum HRT of 4.3 days and maximum ammonia loading of 0.6 kg N- NH4+ m3.d with pH 7–8.5, temperature 25–30 °C, and DO at 2 mg/L is favorable to AOB. Kinetic study was conducted to identify the characteristic of the microorganisms in the system. Measured Ks and μA,max of MBR sludge was 19.65 mg NH4-N/L (Temperature 25 °C, pH 8.5) and 0.26 d−1, respectively.

Enhancing filterability of activated sludge from landfill leachate treatment plant by applying electrical field ineffective on bacterial life

2017 ◽  
Vol 24 (11) ◽  
pp. 10364-10372 ◽  
Author(s):  
Gulizar Kurtoglu Akkaya ◽  
Elif Sekman ◽  
Selin Top ◽  
Ece Sagir ◽  
Mehmet Sinan Bilgili ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Landfill Leachate ◽  
Treatment Plant ◽  
Leachate Treatment ◽  
Electrical Field

scholarly journals FISH investigation of the bacterial groups anammox and Azoarcus-Thauera at treatment of landfill leachate

2021 ◽  
Vol Volume 53 (Special Issue A) ◽  
pp. 27-34
Author(s):  
M. Belouhova ◽  
N. Dinova ◽  
I. Yotinov ◽  
S. Lincheva ◽  
I. Schneider ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Anammox Bacteria ◽  
Leachate Treatment ◽  
Complex Information ◽  
Microbial Groups ◽  
Bacterial Groups ◽  
Transformation Processes

The landfill leachate is heavily polluted wastewater produced in the landfills. The management of the purification of the leachate is especially challenging and that is why new approaches and indicators are needed. The quantity, localization, interaction, clustering of the key microbial groups, responsible for the critical transformation processes can be used as indication leading to better performance of the technology. This study is focused on two bacterial groups (Anammox and Azoarcus-Thauera cluster) which have potential to serve as indicators for the landfill leachate treatment. Their quantity and activity were studied by FISH during lab-scale treatment of leachate from the Municipal Enterprise for Waste Treatment (MEWT), Sofia, Bulgaria. Two activated sludges (AS) were used – one from the MEWT and another form the WWTP (wastewater treatment plant) of Sofia. The obtained results showed that 74% of the COD was eliminated when leachate was diluted 50 and 25 times and 31% - when undiluted leachate was used. At the end of the process (21 day) the Azoarcus-Thauera group formed large aggregations in the AS from MEWT. They were 17.50% of the bacteria there while in the AS from the WWTP of Sofia they represented only 2.61%. The quantity of the anammox bacteria remained almost unchanged during the process and was 10.75% of the community from MEWT which eliminated 98 mg/L more ammonium ions at the end of the process and 6% from the community from the WWTP of Sofia. The two studied groups gave more complex information about the processes in the AS related to the elimination of the nitrogen and carbon containing pollutants. They could be used for better management of the biological processes during landfill leachate treatment. Key words: landfill leachate; anammox, Azoarcus-Thauera; activated sludge; fluorescence in-situ hybridization

Study on A2O Method for Co-Treatment of Landfill Leachate and Municipal Sewage

2011 ◽  
Vol 356-360 ◽  
pp. 2908-2913
Author(s):  
Si Ruo Zhang ◽  
Tie Jian Zhang ◽  
Jun Liang Liu ◽  
Yan Li
Keyword(s):  
Wastewater Treatment ◽  
Landfill Leachate ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Municipal Sewage ◽  
Municipal Wastewater Treatment ◽  
Leachate Treatment ◽  
Effluent Quality ◽  
Simulated Wastewater

To solve the problem of huge investment and high difficulty of individually treating landfill leachate, the experiment adopted A2O simulated wastewater treatment plant to treat landfill leachate combined with municipal sewage.Under the conditions of 11h HRT, 1.0-2.0mg/L DO concentration, 200% mixture reflux proportion, 80% sludge reflux proportion and 20d sludge age, adding langdfill leachate to municipal sewage with the proportion of 1:1500, 1:1000 and 1:600, the effluent concentration can achieve the first order A standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant. When the proportions come to 1:400 and 1:200,the effluent quality can’t reach the standard. After a comprehensive consideration of water quality and landfill leachate treatment amount in practice, we can draw a conclusion that the 1:600 proportion is the most suitable one of adding landfill leachate to municipal sewage.

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