Influence of powdered activated carbon addition on water quality, sludge properties, and microbial characteristics in the biological treatment of commingled industrial wastewater

2015 ◽  
Vol 295 ◽  
pp. 1-8 ◽  
Author(s):  
Qing-Yuan Hu ◽  
Meng Li ◽  
Can Wang ◽  
Min Ji
Keyword(s):  
Water Quality ◽  
Activated Carbon ◽  
Industrial Wastewater ◽  
Biological Treatment ◽  
Powdered Activated Carbon ◽  
Carbon Addition ◽  
Microbial Characteristics ◽  
Sludge Properties

RESEARCH OF OIL REFINING PLANT WASTEWATER’S ONE-STAGE BIOLOGICAL TREATMENT

2013 ◽  
Vol 3 (4) ◽  
pp. 24-27
Author(s):  
A. V BELYaKOV
Keyword(s):  
Water Quality ◽  
Industrial Wastewater ◽  
Biological Treatment ◽  
Municipal Wastewater ◽  
Oil Refining ◽  
Nitrogen Compounds ◽  
Technological Parameters ◽  
One Stage ◽  
Refining Plant ◽  
Stage Scheme

The article reports on the research results of wastewaters biological treatment at Novokuibyshevsk oil refining plant using the technology of nitrification - denitrification. The paper reveals the possibility of meeting modern requirements for treated water quality by nitrogen compounds while treating industrial wastewater without mixing it with municipal wastewater. Necessary dependencies and technological parameters for choosing the mode of experimental and production use of treatment structures by one-stage scheme with nitrification-denitrification are given.

Biological Treatment of a High Salinity Chemical Industrial Wastewater

1993 ◽  
Vol 27 (7-8) ◽  
pp. 105-112 ◽  
Author(s):  
Shimshon Belkin ◽  
Asher Brenner ◽  
Aharon Abeliovich
Keyword(s):  
Activated Carbon ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Salt Concentration ◽  
Industrial Wastewater ◽  
Biological Treatment ◽  
High Salinity ◽  
Laboratory Bench ◽  
Wastewater Stream ◽  
Scale Reactor

Various laboratory-scale process configurations were tested for the biological treatment of a combined wastewater stream of several chemical factories. The untreated wastewaters, rich in halogenated organics (1250±389 mg/l DOC), were also highly saline (32±11 g/liter TDS 550°C) and toxic (Microtox™ EC50 = 1.5±2.0%). Biphasic (anaerobic/aerobic) laboratory bench-scale reactor systems yielded reduction of dissolved organic carbon by 70 to 84%, in the absence and presence of powdered activated carbon, respectively. The anaerobic phase proved to be essential in all systems, both for dissolved organic carbon removal and for detoxification. Similar efficiencies were obtained in either activated sludge or aerated lagoon type reactors, but in the latter case, longer hydraulic retention times were required. DOC removal was found to decrease with increased salt concentration; however, a 50% efficiency was achieved even at 90 g/l TDS. Toxicity elimination as judged by the Microtox™ assay was highly variable in the absence of activated carbon but stable and efficient in its presence.

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