Microbial response during treatment of different types of landfill leachate in a semi-aerobic aged refuse biofilter

Chemosphere ◽  
2021 ◽  
Vol 262 ◽  
pp. 127822
Author(s):  
Peng Wen ◽  
Yuyu Huang ◽  
Zhongping Qiu ◽  
Qibin Li
Keyword(s):  
Landfill Leachate ◽  
Microbial Response ◽  
Aged Refuse ◽  
Different Types

Degradation of Landfill Leachate by Ultrasound/Ultraviolet - Aged Refuse Bioreactor Combined Process

2013 ◽  
Vol 448-453 ◽  
pp. 532-535
Author(s):  
Bin Liu ◽  
Xu Ya Peng ◽  
Hua Zhao ◽  
Qi Tian
Keyword(s):  
Landfill Leachate ◽  
Biological Treatment ◽  
Impact Load ◽  
Removal Rate ◽  
Cod Removal ◽  
Combined Process ◽  
Aged Refuse ◽  
Optimum Wavelength ◽  
Cod Removal Rate ◽  
Strong Capacity

The biodegradability of aged landfill leachate is low, and the treatment effects of common processes are very poor. This paper explored the effects of the Ultrasound/Ultraviolet - Aged Refuse Bioreactor combined process on aged landfill leachate. The main results were as follows: 1The optimum power of ultrasound was 100 W, and the optimum wavelength of ultraviolet was 254 nm. The removal rate of COD was 27.33% and the value of BOD/COD ratio was increased from 0.1 to 0.35 after the treatment of Ultrasound/Ultraviolet process. Therefore, the biodegradability of the leachate was improved, which might meet the demand of subsequent biological treatment. 2The COD removal rates of the two-stage series aged refuse bioreactor were both kept above 50% during the experiment and this process had a strong capacity of resistance to impact load. 3The COD removal rate of the combined process was over 80% as a whole without any pretreatment, and it has positive significance for the treatment of aged leachate.

Treatment of landfill leachate by combined aged-refuse bioreactor and electro-oxidation

2007 ◽  
Vol 41 (11) ◽  
pp. 2417-2426 ◽  
Author(s):  
Y LEI ◽  
Z SHEN ◽  
R HUANG ◽  
W WANG
Keyword(s):  
Landfill Leachate ◽  
Aged Refuse ◽  
Electro Oxidation

scholarly journals Laboratory tests of Estonian landfill leachate

2019 ◽  
pp. 289-299
Author(s):  
Pille Kängsepp ◽  
William Hogland ◽  
Mait Kriipsalu ◽  
Toomas Timmusk
Keyword(s):  
Constructed Wetland ◽  
Landfill Leachate ◽  
Laboratory Tests ◽  
Nitrogen Compounds ◽  
Multiple Treatment ◽  
Different Types ◽  
Treatment Stage ◽  
Before And After ◽  
Purification Methods ◽  
Engineered Wetland

During the last decade, many laboratory, pilot and full-scale experiments have beenconducted to investigate the optimal low-tech purification methods for the treatment ofnumerous types of wastewaters. Constructed wetland is a low-tech treatment system, whichusually contains multiple treatment possibilities. Frequently, some kind of soil treatmentsystem is included as one treatment stage. Engineered wetland systems for purification ofwastewater and leachate are not yet widely spread in Estonia. The possibility to use peat asfilter media for treatment of leachate from Aardlapalu landfill (Tartu County, Estonia) hasbeen studied. The leachate was transported into the laboratory, aerated and percolated throughtwo different types of peat filters. The concentration of nitrogen compounds, COD and BODwas measured in the leachate before and after treatment. Hydrological consequences andchemical changes in the peat were investigated.

Assessment and analysis of aged refuse as ammonium-removal media for the treatment of landfill leachate

2017 ◽  
Vol 35 (11) ◽  
pp. 1168-1174 ◽  
Author(s):  
Yan He ◽  
Dan Li ◽  
Youcai Zhao ◽  
Minsheng Huang ◽  
Gongming Zhou
Keyword(s):  
Landfill Leachate ◽  
Ammonium Removal ◽  
Aged Refuse

Biological or Chemico-Physical Landfill Leachate Purification - An Alternative or a Useful Combination

1992 ◽  
Vol 26 (1-2) ◽  
pp. 137-145 ◽  
Author(s):  
J. T. Kettern
Keyword(s):  
Landfill Leachate ◽  
State Of The Art ◽  
Engineering Practice ◽  
Treatment Technology ◽  
Leachate Treatment ◽  
Different Types ◽  
Recent Developments ◽  
Minimum Requirements

The passing of the “General Administrative Regulations on Minimum Requirements for the Discharge of Sewage to Waters”, and particularly Annex 51, has far-reaching implications for landfill leachate treatment. The administrative regulations prescribe limits which entail treatment according to good engineering practice and state-of-the-art technology. The paper describes leachates from different types of landfill, discusses state-of-the-art leachate treatment technology and presents some recent developments.

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