scholarly journals Assessment of activated carbon for environmental control of trace organics in petroleum refinery wastewater. [Granular vs. powdered]

1979 ◽  
Author(s):  
W. Harrison ◽  
R.D. Flotard ◽  
D. Ford
Keyword(s):  
Activated Carbon ◽  
Environmental Control ◽  
Petroleum Refinery ◽  
Refinery Wastewater ◽  
Trace Organics ◽  
Petroleum Refinery Wastewater

Removal of sulfur compounds from petroleum refinery wastewater through adsorption on modified activated carbon

2014 ◽  
Vol 70 (8) ◽  
pp. 1376-1382 ◽  
Author(s):  
Ichrak Ben Hariz ◽  
Foued Al Ayni ◽  
Lotfi Monser
Keyword(s):  
Activated Carbon ◽  
Petroleum Refinery ◽  
Diffusion Mechanism ◽  
Sulfur Removal ◽  
Sulfur Compounds ◽  
Refinery Wastewater ◽  
Modified Activated Carbon ◽  
Removal Capacity ◽  
Petroleum Refinery Wastewater ◽  
Effective Removal

The adsorption of sulfur compounds from petroleum refinery wastewater on a chemically modified activated carbon (MAC) was investigated. The modification technique (nitric acid, hydrogen peroxide and thermal modification) enhanced the removal capacity of carbon and therefore decreases cost-effective removal of sulfide from refinery wastewater. Adsorption equilibrium and kinetics data were determined for sulfur removal from real refinery wastewater. The data were evaluated according to several adsorption isotherm and kinetics models. The Freundlich isotherm fitted well with the equilibrium data of sulfur on different adsorbents, whereas the kinetics data were best fitted by the pseudo-second-order model. Insights of sulfide removal mechanisms indicated that the sorption was controlled through the intraparticle diffusion mechanism with a significant contribution of film diffusion. The MAC adsorbent was found to have an effective removal capacity of approximately 2.5 times that of non-modified carbon. Using different MAC, sulfides were eliminated with a removal capacity of 52 mg g−1. Therefore, MAC can be utilized as an effective and less expensive adsorbent for the reduction of sulfur in refinery wastewater.

Optimization and Control Petroleum Refinery Wastewater Treatment Systems — Status, Trends and Needs

1989 ◽  
Vol 24 (3) ◽  
pp. 463-477
Author(s):  
Stephen G. Nutt
Keyword(s):  
Wastewater Treatment ◽  
Process Control ◽  
Petroleum Refinery ◽  
Control Strategies ◽  
Refinery Wastewater ◽  
Statistical Process ◽  
Petroleum Refinery Wastewater ◽  
Optimization And Control ◽  
And Control ◽  
Wastewater Treatment Systems

Abstract Based on discussions in workshop sessions, several recurring themes became evident with respect to the optimization and control of petroleum refinery wastewater treatment systems to achieve effective removal of toxic contaminants. It was apparent that statistical process control (SPC) techniques are finding more widespread use and have been found to be effective. However, the implementation of real-time process control strategies in petroleum refinery wastewater treatment systems is in its infancy. Considerable effort will need to be expended to demonstrate the practicality of on-line sensors, and the utility of automated process control in petroleum refinery wastewater treatment systems. This paper provides a summary of the discussions held at the workshop.

Online Instrumentation of Petroleum Refinery Wastewater Treatment Plants

1989 ◽  
Vol 24 (3) ◽  
pp. 435-450 ◽  
Author(s):  
J.P. Stephenson
Keyword(s):  
Wastewater Treatment ◽  
Continuous Monitoring ◽  
Wastewater Treatment Plants ◽  
Petroleum Refinery ◽  
Petroleum Industry ◽  
Refinery Wastewater ◽  
Analytical Instruments ◽  
Petroleum Refinery Wastewater ◽  
Sample Characterization ◽  
Industry Wastewater

Abstract Several online analytical instruments are commercially available to allow continuous monitoring of petroleum industry wastewater treatment plants. Satisfactory usage of these instruments requires -special attention for sample preconditioning and sample characterization prior to selection. Specific examples of the available instruments are provided. Effective maintenance of instruments is emphasized.

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