Evaluation of different full scale landfill leachate treatment systems

Author(s):  
Pedro Travanca ◽  
Joao Jesus Merijn Picavet ◽  
Josao Tomaos Veiga Soares De Albergaria ◽  
Maria Teresa Pereira De Oliva Teles Moreira ◽  
Cristina Maria Fernandes Delerue Alvim De Matos ◽  
...  
2020 ◽  
Vol 38 (10) ◽  
pp. 1087-1092
Author(s):  
Ronei de Almeida ◽  
Daniele Maia Bila ◽  
Bianca Ramalho Quintaes ◽  
Juacyara Carbonelli Campos

The reverse osmosis (RO) process has been increasingly applied to landfill leachate treatment. The published literature reports several studies that investigated the technical feasibility of RO. However, information about process costs is scarce. Also, companies that run leachate treatment plants do not provide actual costs. To fill this gap, this study aimed to evaluate the treatment costs of a full-scale RO for the treatment of landfill leachate located in Rio de Janeiro State, Brazil. A procedure was proposed to estimate the capital expenses (CAPEX), operational expenses (OPEX), and specific total treatment cost, the total cost per m3 of treated leachate, of the leachate treatment by membrane process, and the results obtained are discussed. The CAPEX for this full-scale RO was estimated at MUS$ 1.413, and OPEX ranged from US$ 0.132 to US$ 0.265 m−3 per year. The cost of leachate treatment has been estimated at US$ 8.58 m−3 considering the operation of the RO-unit for 20 years after landfill closure.


2019 ◽  
Vol 118 ◽  
pp. 04017
Author(s):  
Yuan-Yuan Zhao ◽  
You-Ze Xu ◽  
Shuang Zhou ◽  
Jiao-Mei Liu ◽  
Yingxiang Cheng ◽  
...  

In order to verify the feasibility of Fe/C microelectrolysis-Fenton oxidation for mature landfill leachate treatment in industrial application, this study conducted the treatment processes at full-scale by physicochemical and spectral characterization. The full-scale studies showed that 48.17% of the dissolved organic carbon (DOC) and 42.27% of the dissolved organic nitrogen (DON) were removed by the microelectrolysis-Fenton oxidation process, respectively. Spectra analysis further suggested that the mature leachate was mainly composed of tryptophan-like and fulvic-like compounds. The combination of microelectrolysis and Fenton oxidation efficiently decomposed the aromatic C=C into carboxyl-C and decreased the molecular size of DOC, resulting in a dramatic reduce (97.1%-98.3%) of the fluorescence intensity. The DON removal by microelectrolysis-Fenton oxidation likely associated with the NH2-decomposition of tryptophan-like and aromatic compounds into NO3-N. The tryptophan-like compounds may play a dominant role in Ba binding, while Pb and Cd were likely bound to both the tryptophan-like and fulvic-like compounds. Above 60% of the heavy metals were removed in the microelectrolysis-Fenton oxidation section. Results above confirmed the effectiveness of Fe/C microelectrolysis-Fenton oxidation for mature landfill leachate treatment in industrial application.


Sign in / Sign up

Export Citation Format

Share Document