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تشنغتشو ، الصين

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effects on hydrocyclone on fecal matter

Practical applications of low-pressure hydrocyclone (LPH)

Because the separation performance of a hydrocyclone can be enhanced by increasing the centrifugal force differences between the solid and liquid, hydrocyclones are usually tested and operated at higher pressures from 50 to 150 kPa ( Asomah and This paper presents a comprehensive state-of-the-art review of the aforementioned hydrocyclone enhanced-separation technologies, which are classified An overview of operating parameters and conditions in

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Practical applications of low-pressure hydrocyclone (LPH) for feed

In this work, the practical application of a low-pressure hydrocyclone was examined for feed waste and fecal solid removal for common carp (27±3.1g, Semantic Scholar extracted view of "Practical applications of low-pressure hydrocyclone (LPH) for feed waste and fecal solid removal in a recirculating aquaculture system" by Practical applications of low-pressure hydrocyclone (LPH) for feed

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Faecal pollution affects abundance and diversity of

Naphtali, P., Mohiuddin, M. M., Paschos, A. & Schellhorn, H. E. Application of high-throughput 16S rRNA sequencing to identify fecal contamination The results show that increasing the overflow back pressure increases the total pressure drop of the hydrocyclone, has no significant effect on the internal Effect of changes in the feed duct on hydrocyclone performance

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Effects of geometric and operating parameters and feed

The effects of geometric and operating parameters and feed characters on the motion of solid particles in hydrocyclones were experimentally investigated by using a It is found that the pressure at the hydrocyclone wall increases with increasing feed rate, as the feed rate increases from 3 to 5 m/s, the pressure at the Effects of Feed Rate on the Hydrocyclone Flow Field and Springer

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Influence of Feed Rate on the Performance of Hydrocyclone Flow

In the hydrocyclone column (z > 177 mm), the turbulent kinetic energy begins to change sharply with the increase in the feed rate and increases with the On-site small-scale sanitation is common in rural areas and areas without infrastructure, but the treatment of the collected fecal matter can be inefficient and is seldom directed to resource recovery. The aim of this study was to compare low-technology solutions such as composting and lactic acid fermentation (LAF) followed by Small-scale on-site treatment of fecal matter: comparison of

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Minerals Free Full-Text High Concentration Fine Particle MDPI

The vast majority of current research on hydrocyclone field centrifugal separation focuses on low concentration fluids having volume fraction less than 3%. For high-concentration fluids having volume fractions greater than 10%, which are often encountered in engineering, the law governing particle motion and the classification Traditional hydrocyclones can be used for the concentration of sewage-containing sediments, but the low underflow concentration and the high content of fine particles result in a large subsequent dehydration workload. This study aimed to investigate the effect of columnar hydrocyclone column height on separation performance and the Water Free Full-Text Sediment-Containing Sewage Separation

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(PDF) Effect of fecal matter co-digestion with kitchen waste on

This study evaluated the effect of formulated feedstock: fecal matter from urine-diverting dry toilets and kitchen waste (1:0, 1:1, 2:1, 4:1, and 0:1) on waste weight reduction, Hermetia illucensIn this work, the practical application of a low-pressure hydrocyclone was examined for feed waste and fecal solid removal for common carp (27 ± 3.1 g, average ± SD) and Nile tilapia (33 ± 3.4 g, average ± SD) in a recirculating aquaculture system.The dimensions of the low-pressure hydrocyclone included an inflow diameter of 30 mm, a Practical applications of low-pressure hydrocyclone (LPH) for

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Practical applications of low-pressure hydrocyclone (LPH) for feed

In this work, the practical application of a low-pressure hydrocyclone was examined for feed waste and fecal solid removal for common carp (27±3.1g, average±SD) and Nile tilapia (33±3.4gThe results showed that the W-shaped hydrocyclone had certain advantages in reducing the ﬁne particle content in UF. Minerals 2021, 11, x FOR PEER REVIEW 2 of 17 hydrocyclone, over-grinding of the mill, and a limited increase in the ball mill throughput [13 15]. Thus, numerous studies were conducted to optimize the The Performance Prediction Model of W-Shaped Hydrocyclone

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Minerals Free Full-Text The Effect of Inlet Velocity on the

The “entrainment of coarse particles in overflow” and the “entrainment of fine particles in underflow” are two inevitable phenomena in the hydrocyclone separation process, which can result in a wide product size distribution that does not meet the requirement of a precise classification. Hence, this study proposed a two-stage (TS) hydrocyclone, and the Higher fiber intake may confer beneficial effects on health. Our objective was to investigate the impact of 10 g extrinsic wheat fiber on fecal bulk. Therefore, we performed two randomized intervention studies in which we provided extrinsic wheat fiber-enriched products or appropriate control products for five days together with normal diet. Effects of Extrinsic Wheat Fiber Supplementation on Fecal

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Optimization study of thickener hydrocyclones ScienceDirect

The influence of the shape and dimensions of the main constituent parts of a hydrocyclone on its operational performance has been investigated, including the feed duct (Ji et al., 2019; Rocha et al., 2020), the vortex finder (Vakamalla et al., 2017; Vieira and Barrozo, 2014), the underflow orifice (Gonçalves et al., 2017; Kyriakidis et al., 2018), the The hydrocyclone has been widely used as a classification and separation device in grinding-classification operations. However, hydrocyclone classification can result in “fish-hook” (fine particle entrainment in underflow) and coarse particles in overflow, a phenomenon known as derichment [1,2,3,4].In the classification of high-concentration Minerals Free Full-Text Effect of Overflow Pipe on the Internal

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Practical applications of low-pressure hydrocyclone (LPH) for

In this work, the practical application of a low-pressure hydrocyclone was examined for feed waste and fecal solid removal for common carp (27 ± 3.1 g, average ± SD) and Nile tilapia (33 ± 3.4 g, average ± SD) in a recirculating aquaculture system.The dimensions of the low-pressure hydrocyclone included an inflow diameter of 30 mm, a Overflow pipes are important components of hydrocyclones. The overflow products can carry huge amounts of residual energy when being discharged. In order to take full advantage of the Separations Free Full-Text Effect of the Position of

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Solid/liquid separation performance of hydrocyclones with

Chu et al. studied the effect of structural modification on hydrocyclone performance more comprehensively [17]. However, up to now, few experimental and simulation results have been obtained on the effect of hydrocyclone cone combinations on the solid–liquid separation performance and the flow field inside hydrocyclone yet.Given the complex separation mechanisms of the particulate mixture in a hydrocyclone and the uncertain effects of particle size and shape on separation, this study explored the influence of the maximum projected area of particles on the separation effect as well as single and mixed separations based on CFD–DEM (Computational Effect of Particle Size and Shape on Separation in a Hydrocyclone

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Experimental results of cut size (d50) for conventional and filtering

This was obvious no matter of the dust loading rate (2, 4 and 6 g/hr), which seems to have negligible effect at the adopted experimental conditions a consumption of 113, 102 and 116 Wh/m³First, the effects of length and shape of conical section are studied. On this base, a new hydrocyclone design is proposed by replacing the conventional cone with a long convex cone. The results show that the new hydrocyclone has a better performance compared to the conventional cyclone at all the feed solids concentrations considered.Numerical analysis of hydrocyclones with different conical section

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Separations Free Full-Text Influence of Vortex Finder MDPI

In view of the difficulty of traditional hydrocyclones to meet the requirements of fine classification, a double-overflow three-product (internal overflow, external overflow and underflow) hydrocyclone was designed in this study. Numerical simulation and experimental research methods were used to investigate the effects of double-overflow The effect degree of the change of two cone angles on the energy consumption is in an order as follows: hydrocyclone A > hydrocyclone C > hydrocyclone B. The angles of the two cones change, the flow field inside the hydrocyclone changes. The larger the flow field inside hydrocyclone changes, the higher the energy Solid/liquid separation performance of hydrocyclones with

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Computational Study of the Multiphase Flow and Performance

This paper presents the study concerning long-term effects of a full scale hydrocyclone unit implemented in a continuous flow long sludge age system, on sedimentation, treatment efficiency and

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