Biological Oxidation Of Organic Constituents In Tar-Sand Combustion-Process Water
Conversion of fossil-derived resources into alternate fuels generates process wastewaters that may contain a variety of inorganic and organic contaminants. Some of these process wastewaters have a unique composition, for which little or no previous experience exists that would allow one to judge the efficacy of conventional wastewater treatment unit operations. The purpose of this investigation was to characterize a tar-sand process water and to conduct a screening test to assess the potential for wastewater treatment by biological oxidation.
Biological Oxidation Of Organic Constituents In Tar-Sand Combustion-Process Water
Conversion of fossil-derived resources into alternate fuels generates process wastewaters that may contain a variety of inorganic and organic contaminants. Some of these process wastewaters have a unique composition, for which little or no previous experience exists that would allow one to judge the efficacy of conventional wastewater treatment unit operations. The purpose of this investigation was to characterize a tar-sand process water and to conduct a screening test to assess the potential for wastewater treatment by biological oxidation.
Biological Process Design And Pilot Testing For A Carbon Oxidation, Nitrification, And Denitrification System
DSM Chemicals North America, Inc., Augusta, Georgia, manufactures caprolactam and generates process wastewater containing 3,400 mg/l of chemical oxygen demand (COD) and 660 mg/l of total nitrogen. The new process wastewater NPDES permit will incorporate stringent Organic Chemical, Plastics, and Synthetic Fibers (OCPSF) industrial subcategory effluent limits for biochemical oxygen demand (BOD) (carbonaceous and nitrogenous), total suspended solids (TSS), and priority pollutants.
Biological Process Design And Pilot Testing For A Carbon Oxidation, Nitrification, And Denitrification System
DSM Chemicals North America, Inc., Augusta, Georgia, manufactures caprolactam and generates process wastewater containing 3,400 mg/l of chemical oxygen demand (COD) and 660 mg/l of total nitrogen. The new process wastewater NPDES permit will incorporate stringent Organic Chemical, Plastics, and Synthetic Fibers (OCPSF) industrial subcategory effluent limits for biochemical oxygen demand (BOD) (carbonaceous and nitrogenous), total suspended solids (TSS), and priority pollutants.
Biological Treatment Of Ammonium-Rich Wastewater By Partial Nitritation And Subsequent Anaerobic Ammonium Oxidation (Anammox) In A Pilot Plant
In wastewater treatment plants with anaerobic sludge digestion, 15-/20% of the nitrogen load is recirculated to the main stream with the return liquors from dewatering. Separate treatment of this ammonium-rich digester supernatant would significantly reduce the nitrogen load of the activated sludge system. Some years ago, a novel biological process was discovered in which ammonium is converted to nitrogen gas under anoxic conditions with nitrite as the electron acceptor (anaerobic ammonium oxidation, anammox).
Biological Treatment Of Ammonium-Rich Wastewater By Partial Nitritation And Subsequent Anaerobic Ammonium Oxidation (Anammox) In A Pilot Plant
In wastewater treatment plants with anaerobic sludge digestion, 15-/20% of the nitrogen load is recirculated to the main stream with the return liquors from dewatering. Separate treatment of this ammonium-rich digester supernatant would significantly reduce the nitrogen load of the activated sludge system. Some years ago, a novel biological process was discovered in which ammonium is converted to nitrogen gas under anoxic conditions with nitrite as the electron acceptor (anaerobic ammonium oxidation, anammox).
Combined Photo-Fenton And Biological Oxidation For The Treatment Of Aniline Wastewater
The treatment efficiency of aniline wastewater by single photo-Fenton, single biological oxidation and combined photo-Fenton and biological oxidation were compared. The effect of different factors, such as pH, Fe2+ and H2O2 concentrations on degradation efficiency were investigated.
Combined Photo-Fenton And Biological Oxidation For The Treatment Of Aniline Wastewater
The treatment efficiency of aniline wastewater by single photo-Fenton, single biological oxidation and combined photo-Fenton and biological oxidation were compared. The effect of different factors, such as pH, Fe2+ and H2O2 concentrations on degradation efficiency were investigated.
Combined Fenton Oxidation And Aerobic Biological Processes For Treating A Surfactant Wastewater Containing Abundant Sulfate
The present study is to investigate the treatment of a surfactant wastewater containing abundant sulfate by Fenton oxidation and aerobic biological processes. The operating conditions have been optimized. Working at an initial pH value of 8, a Fe2+ dosage of 600 mg L−1 and a H2O2 dosage of 120 mg L−1, the chemical oxidation demand (COD) and linear alkylbenzene sulfonate (LAS) were decreased from 1500 and 490 mg L−1 to 230 and 23 mg L−1 after 40 min of Fenton oxidation, respectively.
Combined Fenton Oxidation And Aerobic Biological Processes For Treating A Surfactant Wastewater Containing Abundant Sulfate
The present study is to investigate the treatment of a surfactant wastewater containing abundant sulfate by Fenton oxidation and aerobic biological processes. The operating conditions have been optimized. Working at an initial pH value of 8, a Fe2+ dosage of 600 mg L−1 and a H2O2 dosage of 120 mg L−1, the chemical oxidation demand (COD) and linear alkylbenzene sulfonate (LAS) were decreased from 1500 and 490 mg L−1 to 230 and 23 mg L−1 after 40 min of Fenton oxidation, respectively.
