Pilot-scale harvest of recombinant yeast employing microfiltration: a case study

1995 ◽  
Vol 42 (3) ◽  
pp. 235-246 ◽  
Author(s):  
Gregory Russotti ◽  
A.Edward Osawa ◽  
Robert D. Sitrin ◽  
Barry C. Buckland ◽  
William R. Adams ◽  
...  
Keyword(s):  
Pilot Scale ◽  
Recombinant Yeast

Prediction of the pilot-scale recovery of a recombinant yeast enzyme using integrated models

2001 ◽  
Vol 74 (2) ◽  
pp. 96-107 ◽  
Author(s):  
E. G. Varga ◽  
N. J. Titchener-Hooker ◽  
P. Dunnill
Keyword(s):  
Pilot Scale ◽  
Recombinant Yeast ◽  
Integrated Models

scholarly journals ENVIRONMENTAL POLLUTION BY WASTEWATER FROM BROWN COAL PROCESSING ¬ A REMEDIATION CASE STUDY IN GERMANY

2014 ◽  
Vol 22 (1) ◽  
pp. 71-83 ◽  
Author(s):  
Arndt Wiessner ◽  
Jochen A. Müller ◽  
Peter Kuschk ◽  
Uwe Kappelmeyer ◽  
Matthias Kästner ◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Large Scale ◽  
Pilot Scale ◽  
Wastewater Disposal ◽  
Interdisciplinary Approaches ◽  
Phenolic Wastewater ◽  
Term Monitoring

The large scale of the contamination by the former carbo-chemical industry in Germany requires new and often interdisciplinary approaches for performing an economically sustainable remediation. For example, a highly toxic and dark-colored phenolic wastewater from a lignite pyrolysis factory was filled into a former open-cast pit, forming a large wastewater disposal pond. This caused an extensive environmental pollution, calling for an ecologically and economically acceptable strategy for remediation. Laboratory-scale investigations and pilot-scale tests were carried out. The result was the development of a strategy for an implementation of full-scale enhanced in situ natural attenuation on the basis of separate habitats in a meromictic pond. Long-term monitoring of the chemical and biological dynamics of the pond demonstrates the metamorphosis of a former highly polluted industrial waste deposition into a nature-integrated ecosystem with reduced danger for the environment, and confirmed the strategy for the chosen remediation management.

scholarly journals Field Testing a Pilot-Scale System for Alkaline Dehydration of Source-Separated Human Urine: A Case Study in Finland

2020 ◽  
Vol 8 ◽  
Author(s):  
Prithvi Simha ◽  
Caroline Karlsson ◽  
Eeva-Liisa Viskari ◽  
Riikka Malila ◽  
Björn Vinnerås
Keyword(s):  
Human Urine ◽  
Field Testing ◽  
Pilot Scale

scholarly journals Volatile Fatty Acids Recovery In A Reactive Primary Clarifier: A Pilot Case Study

2021 ◽  
Author(s):  
Michele Ponzelli
Keyword(s):  
Flow Rate ◽  
Volatile Fatty Acids ◽  
Oxygen Demand ◽  
Pilot Scale ◽  
Recirculation Flow ◽  
Process Modification ◽  
Biochemical Reactor ◽  
Downstream Processes ◽  
Solids Removal

Although the aim of primary clarifiers remains to remove particles, the removal of settleable solids affects downstream processes that rely on readily biodegradable oxygen demand (rbCOD) in proportion to nutrient removal demands. However, through some process modification the primary clarifier can be looked at as a physico-biochemical reactor able to accomplish: removal of settleable solids; increase rbCOD concentration in the primary effluent. Pilot-scale experiments were conducted at the 12 m³ water resource recovery facility of Université Laval to determine the effect of different factors on the fermentation process in a primary clarifier. The results showed that providing a sludge retention time larger than one day and a low recirculation flow rate from the bottom of the clarifier of about 15% of the influent flow rate are crucial factors for increased rbCOD concentration. They can lead to a VFAs yield up to 90 mgCH3COOHequivalent/gVSS, along with a 70% solids removal efficiency.

scholarly journals Anaerobic Co-digestion of Organic Fraction of Municipal Solid waste and Septage for Sustainable Waste Treatment: A Case Study from Goa, India

2021 ◽  
Vol 1 (3) ◽  
pp. 1-8
Author(s):  
Ravikiran Shet ◽  
Srikanth Mutnuri
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Treatment ◽  
Biogas Production ◽  
Pilot Scale ◽  
Anaerobic Digester ◽  
Full Scale ◽  
Organic Fraction ◽  
Set Up

India generates 0.15 million metric tons (MT) of solid waste per day out of which more than 80% is organic fraction. Apart from this, 38% of the households use septic tanks where proper disposal of faecal sludge is also need of the hour. Anaerobic co-digestion (ACD) of two different substrates has positive potential towards solving this problem. In the present study, ACD of organic fraction of municipal solid waste (OFMSW) and septage solids (SS) was studied at three different levels, i.e., lab-scale, pilot-scale (1 m3), and full scale- capacity (325 m3). A loading rate of 1.5 kg VS/m3 was selected. The bio-methanation potential (BMP) assay showed a maximum biogas generation, i.e., 120±20.6 mL/gmVS with 68% maximum methane concentration at a 5:1 OFMSW and SS ratio. Cumulative biogas production after 30 days was 1.6 L/gmVS. The ultimate biogas production in the pilot-scale plant was 1000±100.5 L/day with 71% methane. The plant was also efficient in removing 87% of COD and 61% of VS. The full-scale anaerobic digester was set up at Mormugao Municpal Council, Goa India wherein the objective was to co-digest OFMSW and SS. This digester showed a similar removal pattern like earlier studies i.e., 94% and 45% COD and VS removal, respectively. The average methane content of the biogas was 68%. Full-scale operation of the anaerobic digester did not show any operational problems at the chosen co-digestion conditions.

Automation of pilot-scale open raceway pond: A case study of CO2-fed pH control on Spirulina biomass, protein and phycocyanin production

2019 ◽  
Vol 33 ◽  
pp. 384-393 ◽  
Author(s):  
Jitendra Mehar ◽  
Ajam Shekh ◽  
Nethravathy M. U. ◽  
R. Sarada ◽  
Vikas Singh Chauhan ◽  
...  
Keyword(s):  
Ph Control ◽  
Pilot Scale ◽  
Open Raceway Pond ◽  
Raceway Pond

On site composting of food waste: A pilot scale case study in China

2018 ◽  
Vol 132 ◽  
pp. 130-138 ◽  
Author(s):  
Wenying Guo ◽  
Ying Zhou ◽  
Nengwu Zhu ◽  
Huageng Hu ◽  
Weihang Shen ◽  
...  
Keyword(s):  
Food Waste ◽  
Pilot Scale

scholarly journals Sulfolane: Magic Extractor or Bad Actor? Pilot-Scale Study on Solvent Corrosion Potential

2018 ◽  
Vol 10 (10) ◽  
pp. 3677 ◽  
Author(s):  
Andrzej Bak ◽  
Violetta Kozik ◽  
Paulina Dybal ◽  
Slawomir Kus ◽  
Aleksandra Swietlicka ◽  
...  
Keyword(s):  
Corrosion Potential ◽  
State Of The Art ◽  
Steel Corrosion ◽  
Pilot Scale ◽  
Electrochemical Technique ◽  
Attractive Alternative ◽  
Equipment Corrosion ◽  
The Impact ◽  
Sulfur Containing

The sulfur-containing derivatives and their metabolites, regarded as ‘old devils of green’ chemistry, constitute a relevant class of air/water/soil contaminants in over-polluted world. In fact, some industrially-engineered solvents have become environmentally unfavorable. An attractive alternative to commonly used industrial liquids is sulfolane (C4H8SO2), an anthropogenic medium. The main objective of this paper is the comprehensive review focusing mainly on the state-of-the-art aspects of the sulfolane synthesis, application of sulfolane as an extractive solvent due to its ‘unique’ physicochemical properties as well as the potential of sulfolane to cause equipment corrosion and subsequent spills. The potential risk for groundwater contamination, danger for human health and ways of sulfolane biodegradation were briefly reviewed as well. Interestingly, the analysis performed on data stored in the Reaxys database revealed an alternating tendency of waxing and waning interest in sulfolane during the space of the last fifty years. Moreover, the primary goal of the presented case study was to verify applicability of industrial, multi-electrochemical technique for reliable detection of corrosion in low conductive process fluids. Several aspects of corrosion measurement including the impact of process parameters (temperature) and impurities (oxygen and chlorides) on stainless steel corrosion in pure sulfolane were investigated briefly.

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