Research Reporting Series: Environmental protection technology, Volume 2Office of Research and Development, U.S. Environmental Protection Agency, 1973 - Environmental engineering |
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Page 3
... blowdown solids . automatic coagulation control . 3. Conduct pilot plant scale gravity thickening and dewatering tests of chemical - sewage sludge to de- velop design data . 4 . 5 . 6 . Conduct a comparative study of granular activated ...
... blowdown solids . automatic coagulation control . 3. Conduct pilot plant scale gravity thickening and dewatering tests of chemical - sewage sludge to de- velop design data . 4 . 5 . 6 . Conduct a comparative study of granular activated ...
Page 36
... Blowdown Line S. T. Timer Controlled Sludge Valve Process Water Blowback Valve U. Vacuum Breaker Effluent Sample Point 1 . Sludge Thickening Cone J. Expanding Area Clarification Zone V. K. Liquid Surface Skimmer W. Flow Splitter Box L ...
... Blowdown Line S. T. Timer Controlled Sludge Valve Process Water Blowback Valve U. Vacuum Breaker Effluent Sample Point 1 . Sludge Thickening Cone J. Expanding Area Clarification Zone V. K. Liquid Surface Skimmer W. Flow Splitter Box L ...
Page 37
... blowdown was routed to a 2000 gallon ( 8 ft . diameter ) holding tank which was equipped with a turbine mixer . Since the chemical treatment unit received raw wastewater , provision was made for clarification zone surface skimming by ...
... blowdown was routed to a 2000 gallon ( 8 ft . diameter ) holding tank which was equipped with a turbine mixer . Since the chemical treatment unit received raw wastewater , provision was made for clarification zone surface skimming by ...
Page 39
... blowdown to a thickener . No attempt was made to identically match the PAC mass transfer rate between units with the virgin PAC mass feed rate . Rather , a PAC transfer rate was maintained at that required to enable stable operation of ...
... blowdown to a thickener . No attempt was made to identically match the PAC mass transfer rate between units with the virgin PAC mass feed rate . Rather , a PAC transfer rate was maintained at that required to enable stable operation of ...
Page 52
... blowdown from each chemical and PAC solids- contact treatment units . These samples were 24 - hour composites of grab samples taken at two hour intervals . At weekly to bi - weekly intervals , a sample of 24 - hour com- posited chemical ...
... blowdown from each chemical and PAC solids- contact treatment units . These samples were 24 - hour composites of grab samples taken at two hour intervals . At weekly to bi - weekly intervals , a sample of 24 - hour com- posited chemical ...
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Common terms and phrases
actions activated carbon activated sludge activities adsorption Appendix assessment blowdown carbon contactors carbon dosage CARBON TREATMENT characteristics chemical treatment concentration costs criteria Define Determine dewatering effective effluent quality Equation equipment error evaluation evapotranspiration example factors FeCl3 ferric chloride Figure filtration floc flocculation flow furnace gpm/sq ft granular media hydraulic conductivity Identify indicated influent irrigation Irrigation schedule job aids laboratory LIME TREATMENT maintenance Manual media filter ment mg/l moisture overflow rate parameters percent personnel functions phosphorus pilot plant plant operation plant performance polyelectrolyte polymer position powdered carbon presented procedures pump raw wastewater reaction zone regeneration salt samples schedule SCOD SLUDGE THICKENING slurry soil solids-contact unit soluble specific staffing steps suspended solids Table tank task tion treatment pH treatment plant treatment unit Turbidity two-stage counter-current underflow vacuum filter values valve variables water potential worker
Popular passages
Page 221 - Research reports of the Office of Research and Development, US Environmental Protection Agency, have been grouped into nine series These nine broad categories were established to facilitate further development and application of environmental technology. Elimination of traditional grouping was consciously planned to foster technology transfer and a maximum interface in related fields. The nine series are: 1 Environmental Health Effects Research 2 Environmental Protection Technology 3 Ecological Research...
Page 221 - ... application of environmental technology. Elimination of traditional grouping was consciously planned to foster technology transfer and a maximum interface in related fields. The five series are: 1. Environmental Health Effects Research 2. Environmental Protection Technology 3. Ecological Research 4. Environmental Monitoring 5. Socioeconomic Environmental Studies This report has been assigned to the ENVIRONMENTAL MONITORING series.
Page vii - US Environmental Protection Agency, and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the US Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Page 221 - EPA Review Notice This report has been reviewed by the Environmental Protection Agency and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Page i - SERIES Research reports of the Office of Research and Development, US Environmental Protection Agency, have been grouped into nine series These nine broad categories were established to facilitate further development and application of environmental technology Elimination of traditional grouping was consciously planned to foster technology transfer and a maximum interlace in related fields.
Page 153 - Categories , ^Professional, technical, and managerial occupations 2 Clerical and sales occupations 3 Service occupations 4 Farming, fishery, forestry, and related occupations 5 Processing occupations 6 Machine trades occupations 7 Bench work occupations 8 Structural work occupations 9 Miscellaneous occupations Two-Digit Occupational Divisions Professional, Technical, and Managerial Occupations...
Page 192 - Gamma-radiation attenuation for measuring bulk density and transient water flow in porous materials.
Page 154 - THINGS 0 Synthesizing 1 Coordinating 2 Analyzing 3 Compiling 4 Computing 5 Copying 6 Comparing...
Page 214 - TO! WATER RESOURCES SCIENTIFIC INFORMATION CENTER US DEPARTMENT OF THE INTERIOR WASHINGTON. DC 20240...
Page 154 - PEOPLE (5th digit) 0 Mentoring 0 1 Negotiating 1 2 Instructing 2 3 Supervising 3 4 Diverting 4 5 Persuading 5 6 Speaking-Signaling 6 7 Serving 7 8 No significant relationship...