Removal of dissolved methane and nitrogen from anaerobically treated effluents at low temperature by MBR post-treatment

2017 ◽  
Vol 326 ◽  
pp. 970-979 ◽  
Author(s):  
A. Silva-Teira ◽  
A. Sánchez ◽  
D. Buntner ◽  
L. Rodríguez-Hernández ◽  
J.M. Garrido
2011 ◽  
Vol 102 (22) ◽  
pp. 10299-10304 ◽  
Author(s):  
Masashi Hatamoto ◽  
Tomo Miyauchi ◽  
Tomonori Kindaichi ◽  
Noriatsu Ozaki ◽  
Akiyoshi Ohashi

2002 ◽  
Vol 41 (Part 1, No. 10) ◽  
pp. 6119-6126 ◽  
Author(s):  
Ching-Fa Yeh ◽  
Darren Chi-Hsiang Chen ◽  
Cheng-Yu Lu ◽  
Chung Liu ◽  
Su-Tseng Lee ◽  
...  

Author(s):  
Sheng-Qiang Fan ◽  
Guo-Jun Xie ◽  
Yang Lu ◽  
Zhi-Cheng Zhao ◽  
Bing-Feng Liu ◽  
...  

2011 ◽  
Vol 45 (11) ◽  
pp. 3533-3540 ◽  
Author(s):  
Wasala M.K.R.T.W. Bandara ◽  
Hisashi Satoh ◽  
Manabu Sasakawa ◽  
Yoshihito Nakahara ◽  
Masahiro Takahashi ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (61) ◽  
pp. 38452-38457 ◽  
Author(s):  
Maowei Hu ◽  
Ze Yu ◽  
JiaJia Li ◽  
Xiaoqing Jiang ◽  
Jianbo Lai ◽  
...  

Cu9S5 nanocrystalline film is fabricated by a solution-processed method with a low temperature post-treatment at 250 °C and it is further explored as a counter electrode (CE) material in DSSCs.


2011 ◽  
Vol 228-229 ◽  
pp. 114-118 ◽  
Author(s):  
Shao Mei Zheng ◽  
Cheng Zhao

Plasma carburizing of AISI 316L austenitic stainless steel was carried out at low temperature to improve the surface hardness without degradation of its corrosion resistance. And the post-treatment, namely electrochemical surface brightening process was carried out to clear away a layer of thin black film on the plasma carburized samples and improve the surface quality of the hardened stainless steel. The surface appearance, roughness, microstructures, microhardness and corrosion resistance of the samples before and after brightening were analyzed and compared. Experimental results of plasma carburizing at low temperature showed that high-quality hardened layers can be produced at the appropriate process parameters.The electrochemical brightening process can be used as a post-treatment to restore the original color and further improve the corrosion resisitance of the plasma carburized stainless steel.


2010 ◽  
Vol 61 (9) ◽  
pp. 2407-2415 ◽  
Author(s):  
N. Matsuura ◽  
M. Hatamoto ◽  
H. Sumino ◽  
K. Syutsubo ◽  
T. Yamaguchi ◽  
...  

Anaerobic wastewater treatment has been focused on its eco-friendly nature in terms of the improved energy conservation and reduction in carbon dioxide emissions. However, the anaerobic process discharges unrecovered methane as dissolved methane. In this study, to prevent the emission of dissolved methane from up-flow anaerobic sludge blanket (UASB) reactors used to treat sewage and to recover it as useful gas, we employed a two-stage down-flow hanging sponge (DHS) reactor as a post-treatment of the UASB reactor. The closed DHS reactor in the first stage was intended for the recovery of dissolved methane from the UASB reactor effluent; the reactor could successfully recover an average of 76.8% of the influent dissolved methane as useful gas (containing methane over 30%) with hydraulic retention time of 2 h. During the experimental period, it was possible to maintain the recovered methane concentrations greater than 30% by adjusting the air supply rate. The remaining dissolved methane after the first stage was treated by the next step. The second closed DHS reactor was operated for oxidation of the residual methane and polishing of the remaining organic carbons. The reactor had a high performance and the influent dissolved methane was mostly eliminated to approximately 0.01 mgCOD L−1. The dissolved methane from the UASB reactor was completely eliminated—by more than 99%—by the post-treatment after the two-stage closed DHS system.


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