scholarly journals Bioremediation of Aged Petroleum Oil Contaminated Soil: From Laboratory Scale to Full Scale Application

2015 ◽  
Vol 14 ◽  
pp. 326-333 ◽  
Author(s):  
Qomarudin Helmy ◽  
Rudy Laksmono ◽  
Edwan Kardena
Keyword(s):  
Contaminated Soil ◽  
Full Scale ◽  
Laboratory Scale ◽  
Petroleum Oil

Direct clear juice: a summary of experiences gained in the production of clear juice in a sugarcane diffuser

2017 ◽  
pp. 527-533
Author(s):  
Paul Jensen ◽  
Steve Davis
Keyword(s):  
Flow Path ◽  
Full Scale ◽  
Laboratory Scale ◽  
Collaborative Project ◽  
Laboratory Results ◽  
Research Institute

The term ‘Direct Clear Juice’ (DCJ) refers to the production of clear juice (CJ) within a modified sugarcane diffuser, thus negating the need for further juice purification in a settling clarifier. The feasibility of producing CJ by filtering treated diffuser juice through a shredded cane bed was demonstrated on a laboratory scale at the Sugar Milling Research Institute NPC (SMRI) and reported at the 2013 ISSCT congress. Factory trials were subsequently conducted at Tongaat Hulett’s Maidstone factory where the promising laboratory results were replicated in a full-scale diffuser. The production of DCJ requires consideration of the juice flow path in the diffuser, the method of lime and flocculant addition, and the screening of the juice after the diffuser. This paper summarises the results and learnings from the DCJ trials between 2011 and 2015. The development of the DCJ technology has been a collaborative project between the SMRI and Tongaat Hulett Sugar.

Biomass Characterization in a Nitrification-Denitrification Biological Enhanced Phosphorus Removal (NDBEPR) Plant during Start-Up and Subsequent Periods of Good and Poor Phosphorus Removal

1994 ◽  
Vol 29 (7) ◽  
pp. 91-100 ◽  
Author(s):  
K. C. Lindrea ◽  
S. P. Pigdon ◽  
B. Boyd ◽  
G. A. Lockwood
Keyword(s):  
Phosphorus Removal ◽  
Poor Performance ◽  
Intracellular Distribution ◽  
Full Scale ◽  
Laboratory Scale ◽  
Plant Operation ◽  
The Poor ◽  
Start Up ◽  
Biomass Characterization

During commissioning and process stabilization of a NDBEPR plant at Bendigo intracellular distribution and movement of phosphorus, K+, Mg2+ and Ca2+ was followed to establish the nature of biomass development. The system was also monitored at the end of a period of breakdown of the BEPR process and during its return to phosphorus removal. Phosphorus (P) and Mg2+ distribution in the biomass were closely related during all phases of plant operation, and laboratory trials indicated that the poor performance of the full-scale plant was associated with seasonal reduction in influent Mg2+. Laboratory scale trials produced a similar effect when the influent Mg2+ was limited to concentrations much lower than those experienced in the full scale plant, but only after the Mg2+ and P reserves in the biomass were depleted. The distribution of P, K+, Mg2+ and Ca2+ in the biomass from the full scale plant was similar to that seen in the laboratory trials when cations in the feed were severely limited and recovery of the full scale plant also closely matched that of the laboratory scale system.

Replicating the microbial community and water quality performance of full-scale slow sand filters in laboratory-scale filters

2014 ◽  
Vol 61 ◽  
pp. 141-151 ◽  
Author(s):  
Sarah-Jane Haig ◽  
Christopher Quince ◽  
Robert L. Davies ◽  
Caetano C. Dorea ◽  
Gavin Collins
Keyword(s):  
Water Quality ◽  
Microbial Community ◽  
Full Scale ◽  
Laboratory Scale ◽  
Sand Filters ◽  
Quality Performance

Bacterial Monitoring of a Crude Oil-Contaminated Soil Undergoing Laboratory-Scale Bioremediation

1999 ◽  
pp. 181-188 ◽  
Author(s):  
Pierre Wattiau ◽  
Dirk Springael ◽  
Johan Gemoets ◽  
Ludo Diels ◽  
Guy Cornelis
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Laboratory Scale

The Fracture and Aerosol Release of Impacted HLW Glasses and HLW Canisters

1988 ◽  
Vol 127 ◽  
Author(s):  
Hans G. Scheibel ◽  
V. Friehmelt ◽  
H. Froehlich
Keyword(s):  
Impact Velocity ◽  
Thermal Stresses ◽  
Full Scale ◽  
Laboratory Scale ◽  
Small Scale ◽  
Release Mechanism ◽  
Experimental Conditions ◽  
Drop Tests ◽  
Ground Plate ◽  
The Impact

ABSTRACTThe fracture and release mechanism of radioactive aerosols of HLW glass and HLW canisters are studied experimentally by laboratory scale and full scale drop tests. The experimental conditions model the conditions of accidental drops in a deep salt repository. The laboratory scale drop tests have a scaling factor of 1:10. Accelerated probes of simulated HLW glass impact on a ground plate and the size distributions of broken fines and released aerosols are measured by sieving and scanning electron microscopy (SEM) of aerosol samples.The impact velocity is determined as the dominating impact parameter. Further parameters tested, such as waste glass composition, cooling time (residual thermal stresses), probe temperature at impact, and ground characteristics, show no measurable influence. Source terms of released respirable aerosols are evaluated for two reference cases, borehole drop (impact velocity v = 80 m/s) and reloading hall drop (v = 14 m/s), the values being 0.1 % and to 2.10-4 % respectively of the glass probe mass. The full scale drop tests are performed with European Standard HLW canisters. The canisters keep their integrity in all tests up to drop heights of 14 m. On opening the canisters, the broken fines are analyzed by sieving. The results are in good agreement with the small scale tests and confirm their acceptability for use in a safety analysis.

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