Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Use of a Two-liquid-phase Partitioning Bioreactor for the Biodegradation of Low Molecular Weight Polycyclic Aromatic Hydrocarbons
Advances and Applications of Partitioning Bioreactors
Author: Publisher: Academic Press
ISBN: 0128149973
Category : Technology & Engineering
Languages : en
Pages : 388
Book Description
Advances and Applications of Partitioning Bioreactors, Volume 54, presents an updated reference in the field of partitioning bioreactors, addressing the relevance of kinetic determination, cell deactivation and transport phenomena from an engineering point-of-view. Topics covered in this new release include Mass transport phenomena in partitioning bioreactors, Modelling and design of partitioning bioreactors, Population balances for partitioning bioreactors, Solid-liquid partitioning bioreactors for industrial wastewater treatment, Multiphase bioreactors in the Food Industry, Multiphase bioreactors in the pharmaceutical industry, Biological treatment of gas pollutants in partitioning bioreactors, Hydrocarbon biodegradation using airlift bioreactors, and more. - Contains contributions from experts in their respective areas - Updated, state-of-the-art work on partitioning bioreactors
Xenobiotics in the Urban Water Cycle
Author: Despo Fatta-KassinosPublisher: Springer Science & Business Media
ISBN: 9048135095
Category : Technology & Engineering
Languages : en
Pages : 507
Book Description
The history of chemistry and pharmaceutical sciences is an impressive success story. The products of chemical and pharmaceutical industries are present eve- where in our everyday life. They help to pursue the modern way of living and they contribute to our high standard of living and safety, mobility, communication te- nologies, food, health, textiles and drinking water treatment, among many others. These products are labeled under the categories: pharmaceuticals, pesticides, det- gents, fertilizers, dyes, paints, preservatives, food additives and personal care pr- ucts, to name a few. Within these categories, groups of chemicals with similar structures can be found. However, often groups of chemicals with very different structures belong to the same category. For a long time the production of chemicals and pharmaceuticals, their usage and application was connected with the heavy pollution of the environment and serious health effects. At the end of the last century, it was realised that the products of che- cal and pharmaceutical industries are presenting a new type of environmental pol- tion that may also pose a health risk to the consumer. Most chemicals are used in so-called open applications in excessive amounts e. g. for personal care, hygiene, plant protection, health and in textiles. In many cases such as scents, detergents, textile chemicals, surface disinfectants, pesticides and others it is unavoidable that these chemicals are released into the environment according to their intended use.
Toxicological Profile for Polycyclic Aromatic Hydrocarbons
Author: Publisher:
ISBN:
Category : Polycyclic aromatic hydrocarbons
Languages : en
Pages : 500
Book Description
Use of a Two-phase Partitioning Bioreactor for the Biodegradation of Phenol, Benzene, Toluene and P-xylene
Author: Lisa Donna CollinsUse of a Two-phase Partitioning Bioreactor for the Biodegradation of Phenol, Benzene, Toluene and P-xylene
Author: Bioremediation of Energetics, Phenolics, and Polycyclic Aromatic Hydrocarbons
Author: Victor MagarPublisher:
ISBN:
Category : Science
Languages : en
Pages : 336
Book Description
The symposium included 600 presentations in 50 sessions on bioremediation and supporting technologies used for a wide range of contaminants already in, or poised to invade, soil, groundwater, and sediment. Three hundred and fifty-two papers were selected and organized into ten volumes. Volume three presents bench- and pilot- scale projects focusing on the use of biological treatment approaches for remediating problem compounds such as RDX, HMX, TNT, DDT, PCBs, PAHs, and chlorophenols. Articles average eight pages, and contain abstracts and references. Annotation copyrighted by Book News Inc., Portland, OR.
Index Medicus
Author: Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 2160
Book Description
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Partitioning in Aqueous Two-phase Systems
Author: Harry WalterPublisher: Orlando ; Toronto : Academic Press
ISBN:
Category : Science
Languages : en
Pages : 744
Book Description
Partitioning In Aqueous Two - Phase System ...
Biosurfactant Enhanced Biodegradation of High Molecular Weight Polycyclic Aromatic Hydrocarbons in a Two-stage Continuous Stirred Tank Bioreactors and Biofilm Tank
Author: Tshilidzi Bridget LutsingePublisher:
ISBN:
Category : Bioremediation
Languages : en
Pages : 222
Book Description
Polycyclic aromatic hydrocarbons (PAHs) do not dissolve easily in water, due to their hydrophobic properties. PAHs are unavailable to most aromatic compound degrading organisms, due to these properties. In this study, a biosurfactant producing culture enhancing dissolution of PAHs was isolated, to make them bioavailable. The culture was introduced to the system to improve the dissolution of PAHs and degrade the PAHs thereafter. The aim of the study was to use a strategy with a biofilm process, subsequent to a continuous stirred tank bio-reactors (CSTRs) to successfully remove PAHs from water, with microorganisms that can degrade these pollutants. The open system could easily be controlled and set to optimum conditions, stimulating the growth of PAH degraders. The feed rate and influent concentration can be controlled and the system can easily be cleaned. Biodegradation was achieved, using optimum conditions obtained from the conducted batch studies in a CSTR process ensuring a feasible biodegradation process. Two cultures, Pseudomonas aeruginosa and microbial consortia, were used during the biosurfactant production and PAHs degradation preliminary batch studies. The biosurfactants produced, were identified as Lipopeptides and degradation results indicated great degradation of fluoranthene and triphenylene with a mixed culture consortium present in the system. 90.1% of fluoranthene and 79.6% of triphenylene was degraded after 22 d of incubation in the batch system. Degradation of fluoranthene was studied using biosurfactants and microbial consortium in a three-stage continuous flow system. Reactor 2A fluoranthene influent (60.89%) was degraded, 70.02% of Reactor 2B fluoranthene influent was degraded and 77.17% of biofilm tank fluoranthene influent was degraded. Kinetic studies were conducted, using a Monod model to describe the substrates degradation for batch systems. The highest degradation rate for fluoranthene was determined to be 0.29 h-1 and for triphenylene was 0.13 h-1 with half saturation values of 991.84 mg/L and 451 mg/L respectively, indicating that fluoranthene was degraded faster than triphenylene, when incubated for 22 d. The study demonstrated that biosurfactant production and biodegradation of fluoranthene can be achieved in an open CSTR system, as much as it can be done in a batch system. The biological remediation of PAHs in wastewater plants can be introduced and applied for wastewaters rich, with PAHs.