Optimization denitrifying phosphorus removal at different hydraulic retention times in a novel anaerobic anoxic oxic-biological contact oxidation process

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.

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The Fosfomycin Degradation by Hydrolysis Acidification-Biological Contact Oxidation and Microbial Community Analysis

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.807-809.1129 ◽

2013 ◽

Vol 807-809 ◽

pp. 1129-1134

Author(s):

Ping Zeng ◽

Xiao Lin Xie ◽

Yong Hiu Song ◽

Chao Wei Zhu ◽

Wen Ming Li ◽

...

Keyword(s):

Phosphorus Removal ◽

Organic Phosphorus ◽

Community Analysis ◽

Microbial Community Analysis ◽

Antibiotics Resistance ◽

Phosphorus Concentration ◽

Combined Process ◽

Contact Oxidation ◽

Hydrolysis Acidification ◽

Biological Contact Oxidation

The lab scale biological fosfomycin degradation by hydrolysis acidification-contact oxidation combined process was studied. And the microbial communities in hydrolysis acidification-contact oxidation combined process were analyzed. The results showed that the organic phosphorus was well degraded by hydrolysis acidification-contact oxidation combined process when organic phosphorus concentration in the influent was lower than 10 mg/l. The combined process could endure the loading with the influent organic phosphorus concentration between 10-20 mg/l. The community analysis showed that most of the phosphorus removal bacteria and antibiotics resistance bacteria were discovered in contact oxidation.

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Effect of the biofilm detachment pattern on biological phosphorus removal in the biological contact oxidation remediation system purifying contaminated source water

Scientia Sinica Chimica ◽

10.1360/032010-754 ◽

2011 ◽

Vol 41 (7) ◽

pp. 1198-1205

Author(s):

LiJuan FENG ◽

Jing XU ◽

Liang ZHU ◽

Wei DING ◽

XiangYang XU

Keyword(s):

Phosphorus Removal ◽

Source Water ◽

Biological Phosphorus Removal ◽

Biofilm Detachment ◽

Contact Oxidation ◽

Biological Contact Oxidation ◽

Biological Phosphorus

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

Water Science & Technology ◽

10.2166/wst.2011.435 ◽

2011 ◽

Vol 64 (1) ◽

pp. 147-154 ◽

Cited By ~ 2

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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