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US6410304B2 - Method of biotreatment for solid materials .

US6410304B2 - Method of biotreatment for solid materials .

A method of biotreating a solid material to remove an undesired compound using a nonstirred surface bioreactor is provided. According to the method the surface of a plurality of coarse substrates is coated with a solid material to be biotreated to form a plurality of coated coarse substrates. The coarse substrates have a particle size greater than about 0.3 cm and the solid material to be .

A review on slurry bioreactors for bioremediation of soils .

A review on slurry bioreactors for bioremediation of soils .

Feb 29, 2008 · The aim of this work is to present a critical review on slurry bioreactors (SB) and their application to bioremediation of soils and sediments polluted with recalcitrant and toxic compounds. The scope of the review encompasses the following subjects: (i) process fundamentals of SB and analysis of advantages and disadvantages; (ii) the most recent applications of SB to laboratory scale and .

Bioreactor applications in waste treatment - ScienceDirect

Bioreactor applications in waste treatment - ScienceDirect

Jun 30, 1994 · An overview of bioreactor applications in treatment of gaseous, liquid and solid wastes is presented with emphasis on newer technologies. Waste treatment is considered in a broad context including concentration by bioaccumulation, degradation to substances with reduced environmental impact and upgrading to such useful products as feeds, foods and fuels.

MDPI - Publisher of Open Access Journals

MDPI - Publisher of Open Access Journals

Berberis laurina (Berberidaceae) is a well-known medicinal plant used in traditional medicine since ancient times; however, it is scarcely studied to a large-scale fingerprint. This work presents a broad-range fingerprints determination through high-resolution magical angle spinning (HR-MAS) nuclear magnetic resonance (NMR) spectroscopy, a well-established flexible analytical method and one of .

Airlift Bioreactors - an overview | ScienceDirect Topics

Airlift Bioreactors - an overview | ScienceDirect Topics

Airlift bioreactors are tower reactors for large-scale aerobic cultures where the mixing of the culture broth is done by the inserted gas via an airlift pump (Fig. 7.5).This pump injects compressed air at the bottom of the discharge pipe, which is immersed in the liquid. The compressed air mixes with the liquid, causing the gas–liquid mixture to be less dense than the rest of the liquid .

Biotechnology An Illustrated Primer - Text Version .

Biotechnology An Illustrated Primer - Text Version .

This target, however, 2) through the phase boundary surface into the is only approximated, because the sensitivity liquid; 3) through the liquid to the boundary of the biological materials is usually limiting: surrounding the microorganism; and 4) into stirrer speed, for example, is limited by the shear .

NATO/CCMS Pilot Study Evaluation Of Demonstrated And .

NATO/CCMS Pilot Study Evaluation Of Demonstrated And .

The remaining soil fraction (2 mm) was pumped to a 60 m3 slurry- phase bioreactor for further treatment. The volume of the treated soil fraction (10 mm) was approximately 25 m3. Samples were taken from the soil before water was added. 3.2 Slurry-Phase Bioreactor Treatment Slurry-phase treatment was carried out in a 60 m3 Biodyn reactor.

Bioreactor applications in waste treatment - ScienceDirect

Bioreactor applications in waste treatment - ScienceDirect

Jun 30, 1994 · An overview of bioreactor applications in treatment of gaseous, liquid and solid wastes is presented with emphasis on newer technologies. Waste treatment is considered in a broad context including concentration by bioaccumulation, degradation to substances with reduced environmental impact and upgrading to such useful products as feeds, foods and fuels.

Bioprocessing of differentiated plant in vitro systems .

Bioprocessing of differentiated plant in vitro systems .

Oct 16, 2012 · Several bioreactor systems have been successfully applied for cultivation of differentiated plant in vitro systems (Fig. 1). Depending on the environment in a cultivation chamber, the bioreactors could be roughly divided into four types: liquid‐phase, gas‐phase, hybrid bioreactors, and temporary immersion system (TIS).

Bioremediation | Environmental Remediation .

Bioremediation | Environmental Remediation .

The word "bioremediation" was coined by scientis ts in the early 1980s as a term to describe the use of microorganisms to clean polluted soils and waters. The prefix bio defined the process as biological .

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Full text of "Plant cells [electronic resource]"

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Slurry Bioreactor Design for Shear-Sensitive Mycoprotein .

Slurry Bioreactor Design for Shear-Sensitive Mycoprotein .

Slurry Bioreactor Design for Shear-Sensitive Mycoprotein Production. Authors; Authors and affiliations . Biotechnology, 6(11), 1291–1296 (1988). Considerations for designing bioreactors for shear-sensitive culture. . 1391–1392 (1989). On the calculation of shear rate and apparent viscosity in airlift and bubble column bioreactors .

(PDF) Bioremediation Technologies For Treatment Of PAH .

(PDF) Bioremediation Technologies For Treatment Of PAH .

Ex situ, soil slurry bioreactor Aerobic Phenanthrene- contaminated soil Woo et al. . along with soil slurry phase bioremediation. . the system with low shear stress was increased.

Principles of fermentation technology by doan thanh duy .

Principles of fermentation technology by doan thanh duy .

Fig. 7.50 from Biotechnology and Bioengineering, 42 (1993), Fig. 7.53 from Biotechnology and Bioengineering Symposium, 4 (1974), Fig. 7.44 from Biotechnology Bioengineering 9 (1967), Fig. .

Microbial biofilm: An advanced eco-friendly approach for .

Microbial biofilm: An advanced eco-friendly approach for .

Jan 01, 2020 · The bioremediation process is performed either at the contaminated site, i.e., in situ, or by removing the contaminated site substances, ex situ conditions, using fauna and flora in an ecosystem (Vogt and Richnow, 2014; Azubuike et al., 2016).

US9938492B2 - Photobioreactor for enclosed horizontal .

US9938492B2 - Photobioreactor for enclosed horizontal .

A photobioreactor comprising a sealed, covered plastic sheeting coated with a thin layer of a highly dense culture of photoautotrophic single celled organism. Carbon dioxide is exchanged from a gas space above the culture through attendant mixing by subtending wave motion. The photobioreactor provides a substantial improvement in processing costs in growth media sterilization as well as .

Natural carriers in bioremediation: A review - ScienceDirect

Natural carriers in bioremediation: A review - ScienceDirect

Sep 01, 2016 · D.M. Angelucci, M.C. TomeiEx-situ bioremediation of chlorophenol contaminated soil: Comparison of slurry and solid-phase bioreactors with the two-step polymer extraction–bioregeneration process J Chem Technol Biotechnol, 91 (2016), pp. 1577-1584, 10.1002/jctb.4882

Agrobacterium rhizogenes-Mediated Transformation in .

Agrobacterium rhizogenes-Mediated Transformation in .

Few studies on secondary metabolite production with root and shoot organ cultures in bioreactors have been reported (Kevers et al. 1999; Choi et al. 2000; Bondarev et al. 2002; Piatczak et al. 2005; Kim et al. 2005a). Although, root and shoot organ cultures are genetically and biosynthetically more stable than cell cultures, interest in root .

Pilot-Scale Demonstration of a Slurry-Phase Biological .

Pilot-Scale Demonstration of a Slurry-Phase Biological .

Slurry-Phase Treatment Options Various process configurations as indicated in the above discussion have been successfully implemented in the slurry- phase treatment of soils and impoundment sludges: • in-situ batch treatment of the entire sludge impound- ment in a single operation or by sections; • ex-situ treatment of soils and sludges in .

Bioremediation of Xenobiotics - Environmental Biotechnology

Bioremediation of Xenobiotics - Environmental Biotechnology

Biodegradation of pesticides occurs by aerobic soil microbes. Pesticides are of wide varieties of chemicals e.g. chlorophenoxyalkyl caboxylic acid, substituted ureas, nitrophenols, tri-azines, phenyl carbamates, orga-nochlorines, organophosphates, etc. Duration of persistence of herbicides and insecticides in soil is given in Table 21.2. . Otganophos-phates (e.g. diazion, methyl par-athion and .

Oxygen mass transfer and scale-up studies in baffled .

Oxygen mass transfer and scale-up studies in baffled .

Oxygen mass transfer was studied in conventional, bead mill and baffled roller bioreactors. Using central composite rotational design, impacts of size, rotation speed and working volume on the .

Advances in bioleaching for recovery of metals and .

Advances in bioleaching for recovery of metals and .

Bioremediation is a sustainable technology for the restoration of heavy-metal-contaminated soils since it is ecofriendly and cost effective compared to the conventional chemical and physical .

Contaminated Soils Vol13 | Environmental Remediation .

Contaminated Soils Vol13 | Environmental Remediation .

For study the feasibility of applying composting as a bioremediation treatment, bioreactors at lab scale were used (Godoy-Fandez et al., 2007). Different removal curves were obtained. Highest TOC removals rates were observed in all reactors after 28 days of treatment (Fig.

Bioreactor-based bioremediation of hydrocarbon-polluted .

Bioreactor-based bioremediation of hydrocarbon-polluted .

bioreactors. In these bioreactors, the low shear environ-ment compared to the stirred tanks is beneficial for suc-cessful cultivation of shear sensitive and filamentous cells (Garcia-Ochoa and Gomez 2009). In the present research, 7 stirred tank bioreactors were used for the bioremediation of marine sediments impacted

Principles of fermentation technology by doan thanh duy .

Principles of fermentation technology by doan thanh duy .

Fig. 7.50 from Biotechnology and Bioengineering, 42 (1993), Fig. 7.53 from Biotechnology and Bioengineering Symposium, 4 (1974), Fig. 7.44 from Biotechnology Bioengineering 9 (1967), Fig.

Bioreactors - an overview | ScienceDirect Topics

Bioreactors - an overview | ScienceDirect Topics

Among the bioreactor types available for a certain bioprocess, it is important to have a balanced consideration of many factors, including oxygen transfer, mixing, shear, operational stability and reliability, scale-up, and cost. The chosen bioreactor should be further characterized and the operational mode should be optimized.

(PDF) Microbial Bioremediation and Different Bioreactors .

(PDF) Microbial Bioremediation and Different Bioreactors .

stirred tanks, airlift, slurry phase, . It can be done i n situ and ex situ, . Slurry bioreactors offer an ex sit u environmen tally friendly way f or .

Bioreactor-based bioremediation of hydrocarbon-polluted .

Bioreactor-based bioremediation of hydrocarbon-polluted .

Bioremediation is the biotechnology which makes use of the catabolic activities of indigenous hydrocarbon utilizing bacteria to decontaminate oil-polluted environments (Mahmoud et al. 2009). Bioremediation can be applied as green technologies as it offers an environmentally friendly and cost effective response to marine oil pollution.

annu goel microbiology: 2009

annu goel microbiology: 2009

Dec 27, 2009 · Biologically there are three types of slurry phase bioreactors: • Aerated lagoons • Low shear airlift reactor • Fluidized bed soil reactor The first two types are in full use of full scale bioremediation while third is in developmental stage.

Bioremediation Technologies | Environmental Remediation .

Bioremediation Technologies | Environmental Remediation .

Abstract The complex and diverse structural configurations of polycyclic aromatic hydrocar- bons (PAHs), combined with their low bioavail- ability, hydrophobic nature, strong sorption phenomena, and high persistence in soil makes the design of effective bioremediation methodol- ogies a challenge. The multi-phasic nature of the bioremediation .