Application of biological contact oxidation process to the treatment of oily waste water produced from heavy oil thermal recovery

2013 ◽  
pp. 247-252
Author(s):  
Haifeng Wang ◽  
Jian Zhang ◽  
Hui Ding
Keyword(s):  
Waste Water ◽  
Heavy Oil ◽  
Oxidation Process ◽  
Thermal Recovery ◽  
Contact Oxidation ◽  
Oily Waste ◽  
Biological Contact Oxidation

Application of Biological Contact Oxidation Process of Sewage Treatment in a Hospital Study

2015 ◽  
Vol 727-728 ◽  
pp. 123-125
Author(s):  
Lei Sun
Keyword(s):  
Oxidation Process ◽  
Sewage Treatment ◽  
Economic Benefits ◽  
Environmental Benefits ◽  
Complex Chemical Composition ◽  
Contact Oxidation ◽  
Hospital Sewage ◽  
Biological Contact Oxidation ◽  
Hospital Study ◽  
Water Waste

Hospital sewage effluentwater quality similar to that of its integrated waste water, waste watercontent than the more complex chemical composition, the use of this treatmentis a biofilm of bio-contact oxidation process for the management of hospitalWaste water to run effective and save operating costs, facilitatethe management of operations, and achieved satisfactory economic benefits,social benefits and environmental benefits.

Treatment of linear alkylbenzene sulfonate (LAS) wastewater by internal electrolysis – biological contact oxidation process

2011 ◽  
Vol 64 (1) ◽  
pp. 147-154 ◽  
Author(s):  
X. Z. Cao ◽  
Y. M. Li
Keyword(s):  
Linear Alkylbenzene Sulfonate ◽  
Oxidation Process ◽  
Treatment Method ◽  
Combined Processes ◽  
Optimal Conditions ◽  
Linear Alkylbenzene ◽  
Internal Electrolysis ◽  
Alkylbenzene Sulfonate ◽  
Contact Oxidation ◽  
Biological Contact Oxidation

Surfactant wastewater is usually difficult to treat due to its toxicity and poor biodegradability. A separate physico-chemical or biochemical treatment method achieves a satisfactory effect with difficulty. In this study, treatment of the wastewater collected from a daily chemical plant by the combination processes of Fe/C internal electrolysis and biological contact oxidation was investigated. For the internal electrolysis process, the optimal conditions were: pH = 4–5, Fe/C = (10–15):1, air–water ratio = (10–20):1 and hydraulic retention time (HRT) = 2 h. For the biological contact oxidation process, the optimal conditions were: HRT = 12 h, DO = 4.0–5.0 mg/L. Treated by the above combined processes, the effluent could meet the I-grade criteria specified in Integrated Wastewater Discharge Standard of China (GB 8978-1996). The results provide valuable information for full-scale linear alkylbenzene sulfonate wastewater treatment.

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