The New Methods for Purifying the Industrial Effluents by Submerged Biofilm Reactors

Shirazi, Seyed Alireza Mousavi

doi:10.4236/jep.2011.27114

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…Methods such as hydrolysis of the CW, yeast adaptation and pressure selection are empoyed to overcome this problem. A recent research [115], found that SMFBR is also a suitable method to face this problem and to treat CW as well as all dairy effluents. In order to clarify some of the above discussed aspects, the COD removal efficiency rate versus HRT (day) and OLR [g COD/(L day)] are presented in Figure 3.…”

Section: Conventional (Single Phase) Anaerobic Treatment Of Cheese Wheymentioning

confidence: 99%

Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects

2012

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Abstract:Cheese whey utilization is of major concern nowadays. Its high organic matter content, in combination with the high volumes produced and limited treatment options make cheese whey a serious environmental problem. However, the potential production of biogas (methane), hydrogen or other marketable products with a simultaneous high COD reduction through appropriate treatment proves that cheese whey must be considered as an energy resource rather than a pollutant. The presence of biodegradable components in the cheese whey coupled with the advantages of anaerobic digestion processes over other treatment methods makes anaerobic digestion an attractive and suitable treatment option. This paper intends to review the most representative applications of anaerobic treatment of cheese whey currently being exploited and under research. Moreover, an effort has been made to categorize the common characteristics of the various research efforts and find a comparative basis, as far as their results are concerned. In addition, a number of dairy industries already using such anaerobic digestion systems are presented.

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Section: Conventional (Single Phase) Anaerobic Treatment Of Cheese Wheymentioning

confidence: 99%

Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects

2012

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“…For example, in the resonance region, if the exciting energy of the neutron absorber nucleus (BE+KE) equals one of the exciting levels (ΔE), then, an absorption occurs, and the absorbed neutron (in the nucleus) may cause the capturing and (n,γ) reaction. Also, after the formation of the compound nucleus, the nucleus may release a neutron such that its energy is very lower than the initial neutron energy, and the remainder nucleus returns to a stable level through emitting  radiation that is an indicator of an inelastic reaction [15]. When ΔE>BE+KE, no absorption occurs, and the neutron gives a small amount of its energy to the target nucleus, and it will be scattered with a new angle based on the reaction (n,n').…”

Section: Neutron and Its Interactions With Materialsmentioning

confidence: 99%

Finding Out and Exploration of Two New Equations for Calculating the Dead-time of Neutron Detectors and the Energy of Slow-downed Neutrons

Salem

2022

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The stability of a two-phase interface is a crucial occurrence that involves the design of many engineering applications. It correlates the spatial and droplet size-distributions of many fluid spraying applications and has a great effect on the estimations of the critical heat flux of systems that involves phase change or evaporation. However, the existing hydrodynamic models are only able to predict the stability of a plane fluid sheet, surrounded by an infinite pool of liquid. The case of a thin sheet of liquid surrounding a vapor sheet and enclosed between two walls has not been studied yet. The present paper solves this problem using a linearized stability analysis. Velocity potentials satisfying these conditions are introduced and a complete analysis is presented.

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“…Biofilms are surface-associated bacterial communities encapsulated by a self-produced extracellular matrix, and a predominant growth mode of bacteria in nature [3][4][5]. Biofilms are involved in aspects many of our lives, such as medical care [6], effluents purifying [7], biofuel cells [8]. When growing with limited space and nutrient resources, biofilms exhibit cooperative or competitive behaviors to respond effectively to environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Cell differentiation and motion determine the Bacillus subtilis biofilm morphological evolution under the competitive growth

et al. 2021

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The growth discrepancy of Bacillus subtilis biofilms along different directions under the competitive growth drive the formation of anisotropic biofilm morphology directly. Two biofilms growing from two inoculating positions with different distances exhibit promoting or inhibiting growth behavior. Here we develop an optical imaging technology to observe the cell differentiation and the growth dynamics when the biofilm grows. It shows that the spatiotemporal distribution of different phenotypes affects the biofilm morphological evolution. We develop a program to calculate the velocity of cell motion within the biofilm, which is based on the feature point matching approach. We find the cell differentiation ununiformity in the neighboring region and its opposite region leads to the cell velocity difference in the competitive environment, the different cell motion further influences the biofilm morphology evolution.When biofilms grow with a long inoculating distance, there is always a gap between the them; when biofilms grow with a short inoculating distance, two biofilms gradually merge into a whole. Our work establishes a relationship between microscopic cells and macroscopic biofilm morphological which enables us to study the competitive growth process of biofilms from multiple perspectives.

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The New Methods for Purifying the Industrial Effluents by Submerged Biofilm Reactors

Abstract: Life on the earth is dependent on dynamic interactions between its physical

Cited by 7 publications

References 9 publications

Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects

Biotechnological Utilization with a Focus on Anaerobic Treatment of Cheese Whey: Current Status and Prospects

Finding Out and Exploration of Two New Equations for Calculating the Dead-time of Neutron Detectors and the Energy of Slow-downed Neutrons

Cell differentiation and motion determine the Bacillus subtilis biofilm morphological evolution under the competitive growth

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