A design model for nitrification on structured cross flow plastic media trickling filters

2011 ◽  
Vol 25 (2) ◽  
pp. 257-265 ◽  
Author(s):  
P. Pearce ◽  
W. Edwards
Keyword(s):  
Cross Flow ◽  
Design Model ◽  
Trickling Filters ◽  
Plastic Media

Fish Processing Wastewater: Emission Factors and High Load Trickling Filters Evaluation

1992 ◽  
Vol 25 (1) ◽  
pp. 1-8 ◽  
Author(s):  
P. Battistoni ◽  
G. Fava ◽  
A. Gatto
Keyword(s):  
Cross Flow ◽  
Emission Factors ◽  
High Rate ◽  
Superior Performance ◽  
Pollutant Emission ◽  
Order Kinetic ◽  
Fish Processing ◽  
Kinetic Reaction ◽  
Trickling Filters ◽  
Frozen Fish

An Italian seafood factory processing frozen fish and fresh clams was investigated. Specific water consumption (SC) and pollutant emission factors (EF) are evaluated. Results evidence high SC values, in the range 18-74 1/Kg, due to defrost and extensive washing and cleaning practised; EFs appear high although not directly comparable with data reported by other authors. Two high-rate trickling filters, cross flow (CF) and vertical flow (VF), are examined over a two years period. Results suggest a pseudo half-order kinetic reaction with a superior performance of CF plastic media. From the elaboration of the experimental data a semiempirical correlation between specific surface removal (SSR) and operative parameters is obtained.

Hydrodynamics of plastic media trickling filters

1982 ◽  
Vol 3 (1-11) ◽  
pp. 395-404 ◽  
Author(s):  
G. Sant'Anna ◽  
M. Roustan ◽  
H. Roques ◽  
K.T. Nyadziehe ◽  
R. Ben Aim
Keyword(s):  
Trickling Filters ◽  
Plastic Media

High Load Trickling Filters. Biofilm Accumulation and Sludge Production

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2405-2408 ◽  
Author(s):  
P. Battistoni ◽  
G. Fava ◽  
A. Gatto
Keyword(s):  
Oxygen Uptake Rate ◽  
Cross Flow ◽  
Pilot Scale ◽  
High Load ◽  
Plastic Medium ◽  
Medium Temperature ◽  
Trickling Filters ◽  
Waste Sludge ◽  
Specific Oxygen Uptake Rate ◽  
Sludge Production

A pilot–scale investigation was carried out to evaluate the parameters affecting biofilm accumulation and sludge production. The behaviour of a cross flow (CF) plastic medium filter (4.3 m of Plasdek B 27) was followed over an eight month period. Four hydraulic loadings, from 2.5 to 3.6 m3/m2h, (organic loadings from 1.5 to 6.2 Kg BOD5/m3d) were experimented. Medium temperature, BOD5 influent and hydraulic loading were determinants for biofilm accumulation and sludge production. The specific oxygen uptake rate (SOUR) of waste sludge was found related to inlet BOD5. Furthermore a relationship between median retention time (MRT) and filter biomass was obtained; this relationship gave also a good capacity to interpret MRT for low–rate filters.

Evaluation of the Performances of Random Plastic Media in Aerobic Trickling Filters

1990 ◽  
Vol 22 (1-2) ◽  
pp. 227-238 ◽  
Author(s):  
M. Crine ◽  
M. Schlitz ◽  
L. Vandevenne
Keyword(s):  
Trickling Filters ◽  
Plastic Media

Intrakranieller Cross-flow als prognostischer Faktor für einen frischen Infarkt im MRT nach Carotis-TEA

2007 ◽  
Vol 34 (S 2) ◽  
Author(s):  
H Soda ◽  
A Zormann ◽  
A Agaev ◽  
G Christopoulos ◽  
H Schweiger ◽  
...  
Keyword(s):  
Cross Flow ◽  
Prognostischer Faktor
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