Removal of organic micropollutants in anaerobic membrane bioreactors in wastewater treatment: critical review

2020 ◽  
Vol 6 (5) ◽  
pp. 1230-1243 ◽  
Author(s):  
Michael Lim ◽  
Dominique Patureau ◽  
Marc Heran ◽  
Geoffroy Lesage ◽  
Jeonghwan Kim

The anaerobic membrane bioreactor (AnMBR) is a promising technology for achieving an energy-saving or even energy-positive wastewater treatment process as it produces high effluent quality and renewable energy in the form of methane.

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Zehua Huang ◽  
Renren Wu ◽  
XiaoHui Yi ◽  
Hongbin Liu ◽  
Jiannan Cai ◽  
...  

The anaerobic treatment process is a complicated multivariable system that is nonlinear and time varying. Moreover, biogas production rates are an important indicator for reflecting operational performance of the anaerobic treatment system. In this work, a novel model fuzzy wavelet neural network based on the genetic algorithm (GA-FWNN) that combines the advantages of the genetic algorithm, fuzzy logic, neural network, and wavelet transform was established for prediction of effluent quality and biogas production rates in a full-scale anaerobic wastewater treatment process. Moreover, the dataset was preprocessed via a self-adapted fuzzy c-means clustering before training the network and a hybrid algorithm for acquiring the optimal parameters of the multiscale GA-FWNN for improving the network precision. The analysis results indicate that the FWNN with the optimal algorithm had a high speed of convergence and good quality of prediction, and the FWNN model was more advantageous than the traditional intelligent coupling models (NN, WNN, and FNN) in prediction accuracy and robustness. The determination coefficients R2 of the FWNN models for predicting both the effluent quality and biogas production rates were over 0.95. The proposed model can be used for analyzing both biogas (methane) production rates and effluent quality over the operational time period, which plays an important role in saving energy and eliminating pollutant discharge in the wastewater treatment system.


2015 ◽  
Vol 1 (5) ◽  
pp. 581-605 ◽  
Author(s):  
Ryan W. Holloway ◽  
Andrea Achilli ◽  
Tzahi Y. Cath

The osmotic membrane bioreactor (OMBR) is a hybrid biological-physical treatment process for wastewater treatment and water reuse.


2015 ◽  
Vol 1 (1) ◽  
pp. 56-64 ◽  
Author(s):  
A. L. Smith ◽  
S. J. Skerlos ◽  
L. Raskin

This paper demonstrates the viability of anaerobic membrane bioreactors (AnMBRs) for domestic wastewater treatment at temperatures as low as 6 °C.


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