Magazine article from our research archive:
|
|
Significance of Design and Operational Variables in Chemical Phosphorus Removal
- Article from:
-
Water Environment Research
- Article date:
-
May 1, 2008
- Author:
-
;
;
;
;
;
;
;
;
;
;
;
|
Copyright informationCopyright Water Environment Federation May 2008. Provided by ProQuest LLC. (Hide copyright information)
|
ABSTRACT:
Batch and continuous experiments using model and real wastewaters were conducted to investigate the effect of metal salt (ferric and alum) addition in wastewater treatment and the corresponding phosphate removal from a design and operational perspective. Key factors expected to influence the phosphorus removal efficiency, such as pH, alkalinity, metal dose, metal type, initial and residual phosphate concentration, mixing, reaction time, age of flocs, and organic content of wastewater, were investigated. The lowest achievable concentration of orthophosphate under optimal conditions (0.01 to 0.05 mg/L) was similar for both aluminum and iron salts, with a broad optimum pH range of ...
Related newspaper, magazine, and journal articles:
|
Simultaneous Nitrification and Denitrification with Anoxic Phosphorus...
Water Environment Research;
October 1, 2006 ;
700+ words
......Kjeldahl nitrogen (TKN); and 97% phosphorus removal, producing effluent BOD, COD, NH...bioreactor, nitrification-denitrification, phosphorus removal, biological nutrient removal, anoxic...oxygen demand (COD) for nitrogen and phosphorus removal is one of the major focus areas of...
|
|
|
Evaluation of Membrane Bioreactor Process Capabilities to Meet Stringent...
Water Environment Research;
March 1, 2005 ;
700+ words
......anaerobic zone) and chemical (using alum) phosphorus removal was used to achieve...less than 0.1 mg/L as phosphorus (P) and as low as 0...The stoichiometry of chemical phosphorus removal was also consistent...combination of biological and chemical phosphorus ...
|
|
|
Microbiology of enhanced biological phosphorus removal in aerated-anoxic...
Water Environment Research;
September 1, 2002 ;
700+ words
......traditional process for enhanced biological phosphorus removal (EBPR) in wastewater treatment involves...in aerated-anoxic Orbal processes, phosphorus removal in excess of that required for cell...Accumulibacter phosphatis, enhanced biological phosphorus removal, Orbal process, ...
|
|
|
Principles in the design of single-sludge activated-sludge systems for...
Water Environment Research;
November 1, 1997 ;
700+ words
......nitrification, denitrification, and phosphorus removal, all biological. With such complexity...steady-state model for biological excess phosphorus removal (BEPR) that is based on the current...various parameters on the magnitude of phosphorus removal and the interactions between ...
|
|
|
General model for biological nutrient removal activated-sludge systems:...
Water Environment Research;
July 1, 1997 ;
700+ words
......denitrification biological excess phosphorus removal (NDBEPR) activated-sludge systems...KEYWORDS: activated sludge, biological phosphorus removal, model, nitrogen, nutrient removal...denitrification, as well as biological excess phosphorus removal, has been presented (Barker and ...
|
|
|
Physical enrichment of polyphosphate-accumulating organisms in activated...
Water Environment Research;
July 1, 2002 ;
700+ words
......in full-scale enhanced biological phosphorus removal processes. Water Environ. Res., 74...centrifugation, enhanced biological phosphorus removal. Introduction The removal of phosphorus...Tilman, 1999). Enhanced biological phosphorus removal (EBPR) may be attractive during ...
|
|
|
Functionally Relevant Microorganisms to Enhanced Biological Phosphorus...
Water Environment Research;
August 1, 2008 ;
700+ words
......tetrad-forming organisms (TFOs) to phosphorus removal performance at six full-scale enhanced biological phosphorus removal (EBPR) wastewater treatment...KEYWORDS: enhanced biological phosphorus removal, glycogen-accumulating organisms...
|
|
|
Low sludge carbohydrate content: A prerequisite for enhanced biological...
Water Environment Research;
November 1, 1997 ;
700+ words
......SBRs) exhibiting enhanced biological phosphorus removal (EBPR). Glucose and acetate were...for the two SBRs, respectively. The phosphorus removal performance was excellent when the...parameter representing its capacity for phosphorus removal. The change of the sludge CH content...
|
|
Retrofitting Chesapeake Bay plants. (water treatment plants)...
Public Works;
November 1, 1992 ;
700+ words
......caused by excessive loadings of phosphorus and nitrogen. To implement the...using chemicals, and reduce total phosphorus to 2 mg/L or the level specified...source for nitrogen removal and chemical precipitation for phosphorus removal--was investigated and presented...allowed two-stage BNR ...
|
|
|
Waste activated sludge production of the enhanced biological phosphorus...
Water Environment Research;
May 1, 1997 ;
700+ words
......enhanced biological phosphorus removal process (EBPR...of the enhanced phosphorus removal was due to storage...relatively high phosphorus content of the...biological removal, phosphorus removal, polyphosphate...be designed for phosphorus removal. As an ...
|
|
|
Toward a High-Rate Enhanced Biological Phosphorus Removal Process in a...
Water Environment Research;
June 1, 2007 ;
700+ words
...ABSTRACT: A membrane enhanced biological phosphorus removal (MEBPR) process was studied to determine...was also able to maintain optimal phosphorus removal when the SRT was increased from 12...2007). KEYWORDS: enhanced biological phosphorus removal, membrane processes, biological ...
|
|
|
pH as a key factor in the competiton between glycogen-accumulating...
Water Environment Research;
March 1, 2001 ;
700+ words
......reliability of biological excess phosphorus removal systems. Water Environ. Res., 73, 223 (2001). KEYWORDS: biological excess phosphorus removal, competition, glycogen, glycogen...dynamics. Introduction Biological excess phosphorus removal (BEPR) is routinely used as an economical...
|
|
Alto Dairy installs phosphorus removal system.(waste management)
Dairy Foods;
August 1, 2005 ;
670 words
......been used for water softening, phosphorus removal and metal recovery in over 50 projects...wastewater treatment, and biological and chemical phosphorus removal. Procorp is the U.S. licensee for...process in water softening and phosphorus removal applications. For more ...
|
|
|
The Mechanism of Enhanced Biological Phosphorus Removal Washout and...
Water Environment Research;
July 1, 2006 ;
700+ words
......time (SRT) on enhanced biological phosphorus removal (EBPR) performance and the mechanism...10C. The results showed that the phosphorus removal performance was optimum at total...10C, respectively, and steady-state phosphorus removal was greater at the lower temperature...
|
See all results.
Or, try our
Advanced Search.
|