Development of a novel partial nitrification, fermentation-based double denitrification bioprocess (PN-F-Double/DN) to simultaneous treatment of mature landfill leachate and waste activated sludge

2021 ◽  
pp. 117540
Author(s):  
Fangzhai Zhang ◽  
Yongzhen Peng ◽  
Zihui Liu ◽  
Yongwang Liu ◽  
Li Zhao
Keyword(s):  
Activated Sludge ◽  
Landfill Leachate ◽  
Partial Nitrification ◽  
Waste Activated Sludge ◽  
Simultaneous Treatment ◽  
Mature Landfill Leachate

The Performance of Microelectrolysis in Improving the Biodegradability Landfill Leachate

2013 ◽  
Vol 448-453 ◽  
pp. 1399-1402 ◽  
Author(s):  
Ling Zhao ◽  
Xiao Gu Cheng ◽  
Ping He Yin ◽  
Gang Lu ◽  
Jun Chang Suo
Keyword(s):  
Activated Carbon ◽  
Reaction Time ◽  
Activated Sludge ◽  
Landfill Leachate ◽  
Biological Treatment ◽  
Activated Sludge Process ◽  
Mass Ratio ◽  
Operational Conditions ◽  
A Value ◽  
Mature Landfill Leachate

The aim of this study was to check the effectiveness of microelectrolysis for the pretreatment of a municipal landfill leachate with the objective improving its overall biodegradability, evaluated in terms of BOD5/COD ratio, up to a value compatible with biological treatment. The best microelectrolysis operational conditions for achieving the desired COD values were: pH=2.0; granular activated carbon (GAC) =10 g/L; mass ratio of zero iron (Fe0)/GAC=2:1; reaction time=90 min. The BOD5/COD was significantly improved from 0.12 to 0.31, which allowed an almost 85% removal of COD by a sequential activated sludge process. The results show that the microelectrolysis is a promising technology to improve the biodegradability of mature landfill leachate.

Treatment of landfill leachate by hybrid coagulation and adsorption on modified waste activated sludge

2018 ◽  
Vol 109 ◽  
pp. 152-161 ◽  
Author(s):  
Davoud Balarak ◽  
Edris Bazrafshan ◽  
Hossein Moein ◽  
Shima Nakhaei ◽  
Reza Badali ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Landfill Leachate ◽  
Waste Activated Sludge
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