Effects of current density and electrode material on the dewaterability of the thickened activated sludge by electro-flotation

Journal of Chemical Technology and Biotechnology

Volumn 84, Issue 10, 2009, Pages 1493-1498

  Young, Gyun Choi ^a   Seong, Hong Kim ^b   Hee, Jun Kim ^c   Yun Foreword Jung Kim, ^d   Tai, Hak Chung ^d  

^a Daegu University   (South Korea)

^b Chosun University   (South Korea)

^c Inha University   (South Korea)

^d Seoul National University   (South Korea)

Author keywords

Current density; Dewaterability; Electro flotation (EF); Sludge; Thickening

Indexed keywords

ACTIVATED SLUDGE; DEWATERABILITY; DEWATERING EFFICIENCY; ELECTRO- FLOTATION; ELECTRO-FLOTATION (EF); ELECTRODE MATERIAL; GAS BUBBLE; GAS GENERATION; GRAVITY SEDIMENTATION; MICROBUBBLES; SETTLING CHARACTERISTICS; SLUDGE; SLUDGE LAYER; SPECIFIC RESISTANCE TO FILTRATION; THICKENING;

BIOACTIVITY; CURRENT DENSITY; DEWATERING; FLOTATION; GAS GENERATORS;

ELECTROCHEMICAL ELECTRODES;

ACTIVATED SLUDGE; ANALYTIC METHOD; ARTICLE; CENTRIFUGATION; DENSITY; ELECTRIC CURRENT; ELECTRODE; FLOTATION; GAS; MICROBUBBLE; SEDIMENTATION; SLUDGE DEWATERING; SUSPENSION;

EID: 70449341490     PISSN: 02682575     EISSN: 10974660     Source Type: Journal    
DOI: 10.1002/jctb.2207     Document Type: Article

References (19)

1. Metcalf & Eddy, Inc., Wastewater Engineering: Treatment, Disposal, Reuse, 3rd edn. McGraw-Hill, New York (1995).
2. Jenkins D, Richard MG and Daigger GT, Manual on the Causes and Control of Activated Sludge Bulking and Foaming, 2nd edn. Lewis Publishers, New York (1993).
3. Sezgin M, Palm JH and Jenkins D, The role of filamentous microorganisms in activated sludge settling. Prog Water Technol 12:171-182 (1980). (Pubitemid 11179761)
4. Chen G, Electrochemical technologies in wastewater treatment. Sep Purif Technol 38:11-41 (2004).
5. Manjunath NT, Mehrotra I and Mathur RP, Treatment of wastewater from slaughterhouse by DAF-UASB system. Water Res 34:1930-1936 (2000).
6. Lafrance P and Grasso D, Trajectory modeling of non-Brownian particle flotation using an extended Derjaguin-Landau-Verwey-Overbeek approach. Environ Sci Technol 29:1346-1352 (1995).
7. Chen X,Chen GandYue PL,Novel electrode system for electroflotation of wastewater. Environ Sci Technol 36:778-783 (2002).
8. Raju GB and Khangaonkar, Electroflotation - a critical review. Trans Indian Inst Met 37:59-66 (1984).
9. Hosny AY, Separating oil from oil-water emulsions by electroflotation technique. Sep Technol 6:9-17 (1995).
10. Alexandrova L, Nedialkova T and Nishkov I, Electroflotation of metal ions in wastewater. Int J Miner Process 41:285-294 (1994).
11. Burns SE, Yiacoumi S and Tsouris C, Microbubble generation for environmental and industrial separations. Sep Purif Technol 11:221-232 (1997).
12. Chen G, Chen X and Yue PL, Electrocoagulation and electroflotation of restaurant wastewater. J Environ Eng 126:858-863 (2000).
13. Vogt H, The rate of gas evolution at electrodes - I. An estimate of the efficiency of gas evolution from the supersaturation of electrolyte adjacent to a gas-evolving electrode. Electrochim 29:167-173 (1984).
14. Joe JMCK, Janssen LJJ, Strelen SJD, Verbunt JHE and Sluyter WM, Bubble parameters and efficiency of gas bubble evolution for a chlorine-, a hydrogen- and an oxygen-evolving wire electrode. Electrochim 33:769-779 (1988).
15. Lo IMC, Lai KCK and Chen G, Salinity effect on mechanical dewatering of sludge with and without chemical conditioning. Environ Sci Technol 35:4691-4696 (2001). (Pubitemid 33111520)
16. Christensen GL and Dick RI, Specific resistance measurements: methods and procedures. J Environ Eng 111:258-271 (1985).
17. American Public Health Association/American Water Works Association/Water Environment Federation, Standard Methods for the Examination of Water and Wastewater, 19th edn. Washington DC, USA (1998).
18. Karr PR and Keinath TM, Influence of particle size on sludge dewaterability. J Water Pollut Control Fed 50:1911-1930 (1978).
19. Novak JT, Goodman GL, Pariroo A and Huang JC, The blinding of sludges during filtration. J Water Pollut Control Fed 60:206-214 (1988).