Simulation of Real Wastewater Supercritical Water Oxidation at High Concentration on a Pilot Plant Scale

2011 ◽  
Vol 50 (22) ◽  
pp. 12512-12520 ◽  
Author(s):  
Violeta Vadillo ◽  
M. Belén García-Jarana ◽  
Jezabel Sánchez-Oneto ◽  
Juan R. Portela ◽  
Enrique J. Martínez de la Ossa
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Pilot Plant ◽  
Supercritical Water Oxidation ◽  
High Concentration ◽  
Pilot Plant Scale ◽  
Real Wastewater

Simulation of Supercritical Water Oxidation with Air at Pilot Plant Scale

2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Belén García Jarana ◽  
Jezabel Sánchez Oneto ◽  
Juan Ramón Portela Miguélez ◽  
Enrique Nebot Sanz ◽  
Enrique J. Martínez de la Ossa
Keyword(s):  
Kinetic Parameters ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Pilot Plant ◽  
Reaction Kinetic ◽  
Pure Water ◽  
Kinetic Equations ◽  
Pilot Scale ◽  
Laboratory Scale ◽  
Supercritical Water Oxidation

Supercritical Water Oxidation (SCWO) processes have been studied by numerous researchers. The effectiveness of this approach to treat a wide variety of wastes has been proved and the kinetics involved in some cases have been described. Phenol is commonly present in industrial wastewaters and it is extremely toxic. Hence, phenol is a model pollutant that has been the subject of numerous studies by SCWO on a laboratory scale. In this work, a pilot-scale SCWO system has been used to compare experimental and predicted conversions in the SCWO of phenol, using the reaction kinetic equations obtained at the laboratory scale. In this context, “PROSIM PLUS” software was employed to develop a simulator for the pilot plant facility, with the reaction kinetic parameters adjusted to represent the experimental data. In this study it was necessary to determine the thermal losses between the experimental reactor and its surroundings. These thermal losses were obtained from tests with pure water and oxidant streams in the absence of chemical reaction. An equation that predicted the effect of flow rate and temperature on the thermal losses was used. Experimental oxidation tests were conducted with initial temperature in the range 380 to 425 ºC, at 250 bar and phenol concentrations ranging from 1 to 12 g/l. Good agreement in the simulation was obtained by adjusting the kinetic parameters within their confidence range. This simulator was used to optimize the SCWO of phenol solutions in the pilot plant facility.

Removal of Organic Matters in Pesticide Wastewater by Supercritical Water Oxidation

2014 ◽  
Vol 955-959 ◽  
pp. 2340-2348 ◽  
Author(s):  
Dong Hai Xu ◽  
Shu Zhong Wang ◽  
Chuan Bao Huang ◽  
Xing Ying Tang ◽  
Yang Guo ◽  
...  
Keyword(s):  
Chemical Oxygen Demand ◽  
Residence Time ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Oxygen Demand ◽  
Reaction Pathways ◽  
Experimental Plant ◽  
Supercritical Water Oxidation ◽  
High Concentration ◽  
Organic Matters

Supercritical water oxidation (SCWO) is an alternative to effectively dispose many varieties of organic wastewaters. In this article, a high concentration pesticide wastewater with very complicated components was handled by SCWO in a batch experimental plant at 25 MPa, 410–580 °C within the oxidant coefficient of 1.1–4.0 and the residence time of 1.0–10.0 min. The results show that reaction temperature, oxidant coefficient, residence time can improve XCOD(removal efficiency of chemical oxygen demand) of reactor effluent. XCODreaches up to 99.89% at 550 °C, 25 MPa with the oxidant coefficient of 3.0 and the residence time of 5.0 min, and the corresponding COD concentration is 73 mg/L. Residence time indicates a relatively more important influence on COD1at higher reaction temperatures and OCs. Furthermore, possible reaction pathways for SCWO of organic matters in the pesticide wastewater were also proposed primarily.

scholarly journals Supercritical water oxidation of colored smoke, dye, and pyrotechnic compositions. Final report: Pilot plant conceptual design

1993 ◽  
Author(s):  
C.A. LaJeunesse ◽  
Jennifer P. Chan ◽  
T.N. Raber ◽  
D.C. Macmillan ◽  
S.F. Rice ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Pilot Plant ◽  
Final Report ◽  
Supercritical Water Oxidation ◽  
Pyrotechnic Compositions

Supercritical Water Oxidation of Oily Wastes at Pilot Plant: Simulation for Energy Recovery

2011 ◽  
Vol 50 (2) ◽  
pp. 775-784 ◽  
Author(s):  
Francisco Jimenez-Espadafor ◽  
Juan R. Portela ◽  
Violeta Vadillo ◽  
Jezabel Sánchez-Oneto ◽  
José A. Becerra Villanueva ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Pilot Plant ◽  
Energy Recovery ◽  
Supercritical Water Oxidation ◽  
Plant Simulation

Sub/supercritical water oxidation of high concentration wastewater from tall oil rosin production base

2016 ◽  
Vol 35 (4) ◽  
pp. 975-981 ◽  
Author(s):  
Rongrong Miao ◽  
Minli Wang ◽  
Junjun Shen ◽  
Ping Ning ◽  
Junjie Gu ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Supercritical Water Oxidation ◽  
High Concentration ◽  
Tall Oil
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