scholarly journals Landfill Leachate Treatment Using a Combination of Heterotrophic Denitrification and Partial Nitritation in a Single Sequencing Batch Reactor

2019 ◽  
Vol 29 (1) ◽  
pp. 397-408
Author(s):  
Yanhong Xu ◽  
Shaoqi Zhou ◽  
Huosheng Li
Keyword(s):  
Landfill Leachate ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Leachate Treatment ◽  
Partial Nitritation ◽  
Heterotrophic Denitrification

scholarly journals Partial nitritation treating nitrogen in old landfill leachate

2016 ◽  
Vol 19 (4) ◽  
pp. 39-49
Author(s):  
Nhat The Phan ◽  
Van Thi Thanh Truong ◽  
Son Thanh Le ◽  
Biec Nhu Ha ◽  
Dan Phuoc Nguyen
Keyword(s):  
Landfill Leachate ◽  
Retention Time ◽  
Sequencing Batch Reactor ◽  
Hydraulic Retention Time ◽  
Batch Reactor ◽  
Partial Nitritation ◽  
Time Operation ◽  
Nitrite Oxidizing Bacteria ◽  
Long Time ◽  
H 30

In this study, a lab-scale Partial Nitritation Sequencing Batch Reactor (PNSBR) was implemented for treating high-ammonium old landfill leachate to yield an appropriate NO2—N/ NH4+-N ratio from 1/1 to 1.32/1 mixture as a pretreatment for subsequent Anammox. The objective of this study was to determine the optimal hydraulic retention time (HRT) at different influent ammonia concentrations for 210 days. The experimental results showed that with the influent ammonia concentrations of 500, 1000, 1500 and 2000 mg/L, HRT is 12 h, 21 h, 30 h and 48 h, respectively. The range of free ammonia (FA) concentration from 17 to 44 mg/L completely inhibited nitrite oxidizing bacteria (NOB) for long time operation. The COD removal efficiency was very low (6±2) %.

Application of a membrane sequencing batch reactor for landfill leachate treatment

Desalination ◽  
2008 ◽  
Vol 221 (1-3) ◽  
pp. 483-493 ◽  
Author(s):  
J. Tsilogeorgis ◽  
A. Zouboulis ◽  
P. Samaras ◽  
D. Zamboulis
Keyword(s):  
Landfill Leachate ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Leachate Treatment

Adsorption isotherms in landfill leachate treatment using powdered activated carbon augmented sequencing batch reactor technique: Statistical analysis by response surface methodology

2012 ◽  
Vol 10 (1) ◽  
Author(s):  
Shuokr Qarani Aziz ◽  
Dr. Hamidi Abdul Aziz ◽  
Mohd Suffian Yusoff ◽  
Amin Mojiri ◽  
Salem S. Abu Amr
Keyword(s):  
Activated Carbon ◽  
Adsorption Isotherms ◽  
Landfill Leachate ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Great Part ◽  
Ammonia Nitrogen ◽  
Aeration Rate ◽  
Powdered Activated Carbon ◽  
Leachate Treatment

Abstract Landfill leachate was treated using non-powdered activated carbon sequencing batch reactor (NPAC-SBR) and powdered activated carbon (PAC) augmented SBR (PAC-SBR) processesto examine Langmuir and Freundlichadsorption isothermsin the SBR technique.Response surface methodology (RSM) was used for the experimental design and statistical analysis.Based on the obtained results, the maximum adsorption capacitiesof ammonia nitrogen (NH3-N), color, and chemical oxygen demand (COD) for the Langmuir adsorption isotherm were 5.63 mg/g, 25.30 Pt.Co/g, and 13.21 mg/g,respectively, whereas for the Freundlichadsorption isotherm, thesewere 6 mg/g, 46.29Pt.Co/g, and 15.41 mg/g, respectively.Generally, Freundlich isotherm values for NH3-N, color, and COD were higher than Langmuir isotherm values.The NH3-N adsorption on PAC was lower than the color and COD adsorptions because a great part of NH3-Nwas biologically removed in the SBR process.Increasing aeration rate and contact times in the SBR processes increased the adsorption isotherms of NH3-N, color, and COD on PAC

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