assessment of a novel spiral hydraulic flocculation

Assessment of a novel spiral hydraulic flocculation …

In the present study, a novel hydraulic flocculation/settling reactor depends on the spiral movement of water around an internal cone was evaluated for removal of turbidity and NOM from water. A CFD simulation with (Fluent) software was used for modeling of flocculation process and computation of velocity gradient.,Assessment of a novel spiral hydraulic flocculation … ,Computational fluid dynamics (CFD) was used for hydrodynamic modeling of flocculation and sedimentation experiments in a novel spiral hydraulic floccu…,Assessment of a novel spiral hydraulic flocculation … ,Request PDF | Assessment of a novel spiral hydraulic flocculation/sedimentation system by CFD simulation, fuzzy inference system, and response surface methodology …

Assessment of a novel nanostructured flocculant with …

Assessment of a novel nanostructured flocculant with elevated flocculation and antimicrobial activity … strength and structure of aluminum-polymer dual-coagulant flocs under different pH and hydraulic conditions.,絮凝搅拌器内部流场特性数值模拟 ,絮凝搅拌器内部为复杂三维湍流流场, 而湍流特性和絮凝搅拌过程中微细颗粒和絮凝剂的分散、微细颗粒间接触碰撞、絮凝体的稳定性具有密切关系, 且湍流特性检测难度较高, 因此对其内部湍流特性进行数值模拟, 取 Y =0截面上湍流特性模拟结果进行分析, 模拟 …,(PDF) enhanced coagulation using spiral clariflocculator ,The initial DOC of water after adding a certain amount of humic and fulvic acids was 11.5 mg/L. The initial pH of water was adjusted to 5.5 which previously reported to be the optimal pH for the …

(a) Swirl flow hydraulic flocculator model (up flow model …

Hydraulic flocculation becomes a promising approach that commonly used for water and wastewater treatment works because of less energy and maintenance costs are needed when compared with …,Modeling and Optimization of Photocatalytic Degradation of … ,Methylene blue (MB) is one of the commonly used dyes in the textile industry and can be used as a model pollutant for the textile industry wastewater. In this work, the photocatalytic degradation of MB by synthesized nanoparticles of lanthanum vanadate (LaVO4) was assessed.,Mohamed GAR ALALM | Research Associate | Polytechnique … ,Computational fluid dynamics (CFD) was used for hydrodynamic modeling of flocculation and sedimentation experiments in a novel spiral hydraulic flocculation/sedimentation system. The experiments…

Flocculator Design Overview – Cornell University

1/10/2017 CEE 4540: Sustainable Municipal Drinking Water Treatment Monroe Weber-Shirk 1 Flocculator Design Overview •Analysis of hydraulic flocculators •Ratio of maximum to average energy dissipation rate •Inefficiency of energy use due to nonuniformity of energy dissipation rate,Enhanced coagulation using a spiral clari-flocculator … ,Request PDF | On Aug 1, 2012, Mohamed Ibrahim Gar Alalm published Enhanced coagulation using a spiral clari-flocculator | Find, read and cite all the research you need on ResearchGate,Conceptual Design of a Novel Flocculation Device … ,A design concept for a flocculating device has been derived by considering the effects of hydraulic conditions between corrugated baffles which are held in a spiral arrangement. Performance predictions suggest that this device may be more efficient than conventional stirred tank flocculators.

An accurate approach to the design of channel hydraulic …

A theoretical, experimental and computational fluid dynamics study is presented, in which a point-to-point approach is derived, allowing variations in turbulent kinetic energy to be taken into account in determining flocculation efficiency. The design of flocculators for water treatment continues to be based on the generalized and simplistic concept of mean velocity gradient within the …,Assessment of a novel nanostructured flocculant with elevated … ,Assessment of a novel nanostructured flocculant with elevated flocculation and antimicrobial activity. Chemosphere ( IF 7.086 ) Pub Date : 2019-08-31 , DOI: 10.1016/j.chemosphere.2019.124736,[PDF] Coagulation – submerged membrane system for NOM … ,Our paper presents the results of investigations on the treatment of waters involved in unit process ultra – filtration, hybrid process – coagulation/sedimentation …

Fluid shear influences on the performance of hydraulic …

A Flocculation Residual Turbidity Analyzer (FReTA) was used to quantitatively compare the sedimentation velocity distributions and the post-sedimentation residual turbidities of the flocculated suspensions to see how they were affected by varying fluid shear, G, and hydraulic residence time, θ, while holding collision potential, Gθ, constant.,Mohamed Gar Alalm – Research Associate – LinkedIn ,flocculation and sedimentation experiments in a novel spiral hydraulic flocculation/ sedimentation system. The experiments were conducted by different flow rates and different internal geometry to obtain different flocculation times and velocity gradients.,Computation fluid dynamics model of first-flush runoff … ,The horizontal centrifugal force of the particles increased, and the hydraulic residence time decreased at a velocity higher than 2 m/s, causing the particles to easily flow out with water flow without sedimentation. The particles presented the best downward spiral flow settling and the highest removal rate at a flow velocity of 2 m/s.

Numerical Assessment of Novel Helical/Spiral Grafts with …

In the present work, numerical simulations were conducted for a typical end-to-side distal graft anastomosis to assess the effects of inducing secondary flow, which is believed to remove unfavourable flow environment. Simulations were carried out for four models, generated based on two main features of 'out-of-plane helicity' and 'spiral ridge' in the grafts as well as their combination.,2011 Assessemnt of hydraulic flocculation process using … ,View 2011 Assessemnt of hydraulic flocculation process using CFD.pdf from SOFTWARE 41 at Tanta University. The performance of flocculation tanks either in full- or pilot-scale systems cannot be,CN103833194A – Novel spiral dehydrator – Google Patents ,The invention relates to a novel spiral dehydrator which comprises a screw shaft. A variable frequency motor is arranged at one end of the screw shaft.

PRIME PubMed | Assessment of a novel nanostructured …

In this work, a novel process involving the preparation of nanochitosan-grafted flocculants (CPAM-g-NCS) to treat low turbid and salmonella suspensions simultaneously was introduced. Nanotechnology was employed to enhance the adsorption-adhesion and sterilization abilities of dual-functional flocculants.,Flocculator Design Overview – Cornell University ,1/10/2017 CEE 4540: Sustainable Municipal Drinking Water Treatment Monroe Weber-Shirk 1 Flocculator Design Overview •Analysis of hydraulic flocculators •Ratio of maximum to average energy dissipation rate •Inefficiency of energy use due to nonuniformity of energy dissipation rate,Spiral: Application of polyacrylamide flocculation with … ,My Spiral 75. IRUS Total Downloads.

Flocculation performance of a novel synthesized flocculant …

Flocculation performance included the turbidity removal rate, sediment character and a decrease in COD(chemical oxygen demand). The sediment time of flocculation is short and the removal rate of turbidity treated by CAS is high compared with PAC(polyaluminum chloride), PAM(polyacrylamide) and the combined addition of PAC and PAM.,Principle and Practice of Hydraulic Flocculator – CNKI ,Abstract: The article expresses developing and utilizing of corrugated plates flocculator and the research result about hydraulic flocculation principle,and proposes some concepts and facilities design for improving and enhancing the efficiency and effect of hydraulic flocculator.The energy input should have a more uniform distribution in each stage of hydraulic flocculator.The flocculation …,Flocculation performance of a novel synthesized flocculant … ,您好,读者! 请

Numerical Assessment of Novel Helical/Spiral Grafts with …

In the present work, numerical simulations were conducted for a typical end-to-side distal graft anastomosis to assess the effects of inducing secondary flow, which is believed to remove unfavourable flow environment. Simulations were carried out for four models, generated based on two main features of 'out-of-plane helicity' and 'spiral ridge' in the grafts as well as their combination.,2011 Assessemnt of hydraulic flocculation process using … ,View 2011 Assessemnt of hydraulic flocculation process using CFD.pdf from SOFTWARE 41 at Tanta University. The performance of flocculation tanks either in full- or pilot-scale systems cannot be,Flocculation Research Papers – Academia.edu ,Among the current chemical processes used for industrial wastewater treatment, coagulation-flocculation has received a large attention for high pollutant removal efficiency. This paper summarizes the results of a textile wastewater treatment process aimed at the destruction of colour by coagulation-flocculation process and using an organic …

CN103833194A – Novel spiral dehydrator – Google Patents

The invention relates to a novel spiral dehydrator which comprises a screw shaft. A variable frequency motor is arranged at one end of the screw shaft.,Spiral: Application of polyacrylamide flocculation with … ,My Spiral 75. IRUS Total Downloads.,Flocculation behaviors of a novel papermaking sludge-based … ,Flocculation behaviors of a novel papermaking sludge-based flocculant in practical printing and dyeing wastewater treatment Kangying Guo, Baoyu Gao( ), Jie Wang, Jingwen Pan, Qinyan Yue, Xing Xu 1Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China

Flocculation performance of a novel synthesized flocculant …

Flocculation performance included the turbidity removal rate, sediment character and a decrease in COD(chemical oxygen demand). The sediment time of flocculation is short and the removal rate of turbidity treated by CAS is high compared with PAC(polyaluminum chloride), PAM(polyacrylamide) and the combined addition of PAC and PAM.,Assessment of a novel biomechanical fracture model for … ,Distal radius fractures (DRF) are one of the most common fractures and often need surgical treatment, which has been validated through biomechanical tests. Currently a number of different fracture models are used, none of which resemble the in vivo fracture location.,Performance Assessment of SWRO Spiral-Wound Membrane … ,processes Article Performance Assessment of SWRO Spiral-Wound Membrane Modules with Different Feed Spacer Dimensions A. Ruiz-García 1,* and I.