Publications
250 results found
Doig SD, Leak DJ, Livingston AG, et al., 1997, Development of a membrane bioreactor for multiphase biotransformations, Symposium on 1997 Jubilee Research Event, Publisher: INST CHEMICAL ENGINEERS, Pages: 893-896
Lye GJ, Pavlou OP, Rosjidi M, et al., 1996, Immobilization of Candida cylindracea lipase on colloidal liquid aphrons (CLAs) and development of a continuous CLA-membrane reactor, BIOTECHNOLOGY AND BIOENGINEERING, Vol: 51, Pages: 69-78, ISSN: 0006-3592
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- Citations: 31
Lye GJ, Pavlou OP, Rosjidi M, et al., 1996, Immobilization of Candida cylindracea lipase on colloidal liquid aphrons (CLAs) and development of a continuous CLA-membrane reactor, Biotechnology and Bioengineering, Vol: 51, Pages: 69-78, ISSN: 0006-3592
A novel technique is described for the immobilization of Candida cylindracea lipase in the soapy-shell of colloidal liquid aphrons (CLAs). CLAs consist of a micron-sized solvent droplet surrounded by a thin, aqueous, soapy-film and are stabilized by a mixture of nonionic and ionic surfactants. Retention of lipase within the CLAs is primarily determined by electrostatic interactions between the surface charges on the protein and those of the anionic surfactant used (SDS) because leakage of the lipase from dispersed CLAs was reduced at low continuous phase pH (<pl). Leakage was also reduced after successive dispersions and at higher enzyme loading; this latter point suggests that hydrophobic interactions became important as the surface area per molecule increases. The activity of both free and CLA-immobilized lipase was also determined for the hydrolysis of p-nitrophenyl acetate and p- nitrophenyl caprylate at various substrate concentrations and continuous phase pH. The CLA immobilized lipase displayed a broader optimum pH range in both cases and, due to mass transfer limitations, did not exhibit a normal Michaelis-Menten dependence on substrate concentration. Finally, the possibility of scaling-up this new technique was demonstrated by the use of a cross-flow membrane reactor for continuous product separation and recycle of the CLA-immobilized enzyme.
Rostron WM, Stuckey DC, Young AA, 1996, Treatment of high strength ammonia wastewaters using immobilized biomass, International Symposium on Immobilized Cells - Basics and Applications, Publisher: ELSEVIER SCIENCE PUBL B V, Pages: 703-709, ISSN: 0921-0423
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- Citations: 3
BOAM AT, LEAK DJ, LIVINGSTON AG, et al., 1995, A NOVEL MEMBRANE BIOREACTOR FOR CONTINUOUS BIOTRANSFORMATIONS, 1st European Conference for Young Researchers in Chemical Engineering - The 1995 IChemE Research Event, Publisher: INST CHEMICAL ENGINEERS, Pages: 902-904
NACHAIYASIT S, STUCKEY DC, 1995, MICROBIAL RESPONSE TO ENVIRONMENTAL-CHANGES IN AN ANAEROBIC BAFFLED REACTOR (ABR), ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY, Vol: 67, Pages: 111-123, ISSN: 0003-6072
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- Citations: 37
CARIDIS KA, STUCKEY DC, LEAK DJ, 1995, WHOLE CELL ENZYMATIC EPOXIDATION - SYNTHESIS OF PHENYL GLYCIDYL ETHER BY MYCOBACTERIUM CELLS IN A MEMBRANE RECYCLE BIOREACTOR, 1st European Conference for Young Researchers in Chemical Engineering - The 1995 IChemE Research Event, Publisher: INST CHEMICAL ENGINEERS, Pages: 1178-1180
Weston NC, Stuckey DC, 1994, Cleaner technologies and the UK chemical industry, Process Safety and Environmental Protection: Transactions of the Institution of Chemical Engineers, Part B, Vol: 72, Pages: 91-101, ISSN: 0957-5820
In December 1991, the Department of Trade and Industry set in motion measures designed to encourage the uptake and development of cleaner technologies by UK industry. Concentrating on the chemical industry, this paper examines those initial measures and why they generally seem to be failing at present, and looks to how ideas and plans of the future are aimed at overcoming the many hurdles. The initial measures are substantially based around the Integrated Pollution Control legislation, and sit alongside external driving forces such as potential economic benefits, public opinion, and corporate environmental policies. These have, however, generally failed to overcome the numerous barriers - organizational, economic and technical - that have so far limited the actions of UK industry. Hence the UK government and the EEC have a number of proposals for further measures specifically designed to encourage the development of cleaner technologies. The most significant are those designed to integrate environmental care with other business operations, and those aiming to release more information about industrial environmental impacts into the public domain. Whether these measures will be effective in encouraging cleaner technologies will only be shown with time, but some of the actions and comments coming from the chemical industry give hope that they will be.
WESTON NC, STUCKEY DC, 1994, CLEANER TECHNOLOGIES AND THE UK CHEMICAL-INDUSTRY, PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, Vol: 72, Pages: 91-101, ISSN: 0957-5820
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- Citations: 1
PRICHANONT S, STUCKEY DC, LEAK DJ, 1994, CHIRAL BIOTRANSFORMATIONS IN REVERSE MICELLES, 1994 IChemE Research Event Symposium, Publisher: INST CHEMICAL ENGINEERS, Pages: 238-240
CARIDIS KA, STUCKEY DC, LEAK DJ, 1994, KINETICS OF MYCOBACTERIUM M156 FOR CHIRAL BIOTRANSFORMATIONS, Conference on Applied Biocatalysis (AB 94), Publisher: INST CHEMICAL ENGINEERS, Pages: 37-39
PRICHANONT S, STUCKEY DC, LEAK DJ, 1994, WHOLE-CELL BIOTRANSFORMATIONS IN REVERSE MICELLES, Conference on Applied Biocatalysis (AB 94), Publisher: INST CHEMICAL ENGINEERS, Pages: 17-19
ROSJIDI M, STUCKEY DC, 1994, PARAMETERS INFLUENCING THE SEPARATION OF COLLOIDAL LIQUID APHRONS (CLAS) USING INORGANIC CROSS-FLOW MICROFILTRATION, 2nd Conference on Advances in Biochemical Engineering (ABE 2), Publisher: INST CHEMICAL ENGINEERS, Pages: 127-129
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- Citations: 1
LYE GJ, POUTIAINEN LV, STUCKEY DC, 1994, REMOVAL OF DILUTE ORGANICS FROM INDUSTRIAL-WASTE WATERS - EXTRACTION OF 3,4-DICHLOROANILINE USING COLLOIDAL LIQUID APHRONS, 2nd International Symposium on Environmental Biotechnology (ISEB 2), Publisher: INST CHEMICAL ENGINEERS, Pages: 25-27
CARIDIS KA, LEAK DJ, STUCKEY DC, 1994, OPTIMUM GROWTH CONDITIONS AND KINETICS OF MYCOBACTERIUM M156 FOR CHIRAL BIOTRANSFORMATIONS, 1994 IChemE Research Event Symposium, Publisher: INST CHEMICAL ENGINEERS, Pages: 268-270
AZHAR NG, STUCKEY DC, 1994, The influence of chemical structure on the anaerobic catabolism of refractory compounds: A case study of instant coffee wastes, IAWQ 7th International Symposium on Anaerobic Digestion, Pages: 223-232
Due to concerns about meeting the strict legislation currently in force, anaerobic treatment is being investigated for the treatment of a variety of waste streams. Instant coffee wastes are one type of industrial effluent that appears to be amenable to anaerobic digestion, and this paper presents some results on the biodegradation of this effluent The method used was a batch bioassay technique known as the Biochemical Methane Potential assay (BMP), which gave 84% degradation of a composite coffee waste sample. Various fractions of the coffee waste revealed mixed degradation results mostly attributed to structural differences, with the liquid fractions being almost 60% degradable, and the solids filter cake fraction, containing most of the lignocellulosic material being only 9% degradable. Volatile fatty acid (VFA) analysis revealed high concentrations of formate being formed and subsequently degraded in the bioconversion process, and a possible role for formate production was postulated. Variations in structure did not appear to affect the route by which VFAs were produced. Bioconversion of 5-6 major classes of pure organic compounds thought to be potentially recalcitrant in coffee effluent was investigated to determine possible mechanisms of degradation, and the extent to which structural variation affected degradability. The phenolics and chlorogenic acids gave the highest degradation of 70% and 60% respectively, and the cyclic volatiles the least degradation at 40%.
AZHAR NG, STUCKEY DC, 1994, THE INFLUENCE OF CHEMICAL-STRUCTURE ON THE ANAEROBIC CATABOLISM OF REFRACTORY COMPOUNDS - A CASE-STUDY OF INSTANT COFFEE WASTES, IAWQ 7th International Symposium on Anaerobic Digestion, Publisher: PERGAMON-ELSEVIER SCIENCE LTD, Pages: 223-232, ISSN: 0273-1223
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- Citations: 27
MOLLAH AH, STUCKEY DC, 1993, FEASIBILITY OF INSITU GAS STRIPPING FOR CONTINUOUS ACETONE-BUTANOL FERMENTATION BY CLOSTRIDIUM-ACETOBUTYLICUM, ENZYME AND MICROBIAL TECHNOLOGY, Vol: 15, Pages: 200-207, ISSN: 0141-0229
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- Citations: 21
Stuckey DC, 1993, Use of colloidal liquid aphrons to extract dilute fermentation products, Journal of Chemical Technology & Biotechnology, Vol: 58, Pages: 302-303, ISSN: 0268-2575
MOLLAH AH, STUCKEY DC, 1993, MAXIMIZING THE PRODUCTION OF ACETONE BUTANOL IN AN ALGINATE BEAD FLUIDIZED-BED REACTOR USING CLOSTRIDIUM-ACETOBUTYLICUM, JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, Vol: 56, Pages: 83-89, ISSN: 0268-2575
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- Citations: 13
Scrase JI, Hall DO, Stuckey DC, 1993, Bioethanol from grapes in the European Community, Biomass and Bioenergy, Vol: 5, Pages: 347-358
MATSUSHITA K, MOLLAH AH, STUCKEY DC, et al., 1992, PREDISPERSED SOLVENT-EXTRACTION OF DILUTE PRODUCTS USING COLLOIDAL GAS APHRONS AND COLLOIDAL LIQUID APHRONS - APHRON PREPARATION, STABILITY AND SIZE, COLLOIDS AND SURFACES, Vol: 69, Pages: 65-72, ISSN: 0166-6622
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- Citations: 73
MOLLAH AH, STUCKEY DC, 1992, THE INFLUENCE OF H2, CO2 AND DILUTION RATE ON THE CONTINUOUS FERMENTATION OF ACETONE-BUTANOL, APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, Vol: 37, Pages: 533-538, ISSN: 0175-7598
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- Citations: 15
GROBICKI A, STUCKEY DC, 1992, HYDRODYNAMIC CHARACTERISTICS OF THE ANAEROBIC BAFFLED REACTOR, WATER RESEARCH, Vol: 26, Pages: 371-378, ISSN: 0043-1354
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- Citations: 115
GROBICKI A, STUCKEY DC, 1991, PERFORMANCE OF THE ANAEROBIC BAFFLED REACTOR UNDER STEADY-STATE AND SHOCK LOADING CONDITIONS, BIOTECHNOLOGY AND BIOENGINEERING, Vol: 37, Pages: 344-355, ISSN: 0006-3592
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- Citations: 112
Nurick RL, Wereko-Brobby CY, Nkum JOC, et al., 1991, Rural energy planning studies: A case study of the upper east region of Ghana, International Journal of Ambient Energy, Vol: 12, Pages: 145-164, ISSN: 0143-0750
A major factor preventing the identification of appropriate energy interventions in the rural areas of Africa is the lack of a methodology for rural energy data collection and analysis. This paper proposes such a methodology and describes how it provides relevant data on the dynamics of energy supply and demand. Using this data, energy sector planners can make an informed contribution to the development of rural areas. The methodology centres on the premise that as rural communities develop, the dynamics of the energy sector will reflect this evolution. Villages with contrasting modes of development have been chosen in the Upper East Region of Ghana, to identify those areas where the nature of the energy sector constrains development. The preliminary results from the study (a Rural Energy Planning Project undertaken by the National Energy Board of Ghana as part of its work programme for 1989/90) indicate that the level of natural resource scarcity and the extent of economic development are major determinants of energy supply and demand in the Region. In all villages the majority of biomass fuels for domestic activities are not purchased. The level of economic development depends on the infrastructure. The results also indicate that the institutional structures, particularly those relating to the biomass energy sector, lack coordination and coherent strategy for the effective supply and utilisation of these resources. The application of the methodology is to be implemented on a much wider scale in several Regions of Ghana as part of the National Energy Board work programme for 1991 -96. © Ambient Press Limited 1991.
GROBICKI A, STUCKEY DC, 1989, THE ROLE OF FORMATE IN THE ANAEROBIC BAFFLED REACTOR, WATER RESEARCH, Vol: 23, Pages: 1599-1602, ISSN: 0043-1354
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- Citations: 17
STUCKEY DC, 1985, BIOGAS - WILL IT EVER TAKE OFF, APPROPRIATE TECHNOLOGY, Vol: 12, Pages: 27-29, ISSN: 0305-0920
STUCKEY DC, MCCARTY PL, 1984, THE EFFECT OF THERMAL PRETREATMENT ON THE ANAEROBIC BIODEGRADABILITY AND TOXICITY OF WASTE ACTIVATED-SLUDGE, WATER RESEARCH, Vol: 18, Pages: 1343-1353, ISSN: 0043-1354
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- Citations: 145
Gossett JM, Stuckey DC, Owen WF, et al., 1982, Heat treatment and anaerobic digestion of refuse., Journal - Environmental Engineering Division, ASCE, Vol: 108, Pages: 437-454
Alkaline heat treatment was evaluated as a pretreatment process for increasing the anaerobic digestibility of municipal refuse.- from ASCE Publications Abstracts
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