Capacitive sensing technique for silt suspended sediment concentration monitoring

Hsu, Yin-Sung; Wei, Chi-ma; Ting, Yuan-Chi; Yuan, Shih‐Yi; Chang, Chia-Ling; Chang, Kao-Chung

doi:10.1016/s1001-6279(10)60036-4

Cited by 7 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A variation of 0.1°C in water temperature may change SSC measurements as high as 800 mg/l. Hsu et al [36] found the errors in measuring SSC between 0.26% and 2.91% for the range of SSC 0-200 g/l in controlled laboratory experiments. These measurements depend on the salinity of water and the presence of air bubbles, algae and thrash in the sediment-laden water [17].…”

Section: Electrical Properties-based Cmtmentioning

confidence: 99%

See 1 more Smart Citation

Continuous measurement of suspended sediment concentration: Technological advancement and future outlook

Kumar

2015

Measurement

View full text Add to dashboard Cite

Section: Electrical Properties-based Cmtmentioning

confidence: 99%

“…(a) To measure the change in apparent dielectric constant directly [17] and (b) To measure the change in capacitance and use it to find SSC through a pre-established empirical relation [36].…”

Section: Electrical Properties-based Cmtmentioning

confidence: 99%

Continuous measurement of suspended sediment concentration: Technological advancement and future outlook

Kumar

2015

Measurement

View full text Add to dashboard Cite

“…weighing method cannot accurately reflect the real conditions. In addition, the measuring process is timeconsuming and labor-intensive, which is a barrier to real-time measuring of the HSSC in the Yellow River.Currently, there are many modern methods for measuring HSSC worldwide which include turbidity, optical transmission, acoustic, capacitive, beam reflectance, laser diffraction, nuclear, and spectral reflectance [1,3,4,[6][7][8]11]. However, these methods are subjected to the following limitations, at least one of them: (1) small measurement range [1]; (2) strong particle-size dependency [5]; (3) too expensive and delicate instruments in fluvial environment; (4) vulnerable to environmental factors such as temperature, flow velocity and so on [10].…”

mentioning

confidence: 99%

The study of data fusion for high suspended sediment concentration measuring using the IGA-RBF method

Liu

Zhang

Liu

et al. 2015

Journal of Intelligent &Amp; Fuzzy Systems

View full text Add to dashboard Cite

To optimize the radial basis function (RBF), an improved genetic algorithm (IGA) was used for measuring high suspended sediment concentration (HSSC) in the Yellow River. The improved probabilities crossover and mutation were utilized to realize the twin goals of maintaining diversity in the population and sustaining the convergence capacity of the GA, and a new method was proposed to resolve the problem of deciding the optimal values of the probabilities of crossover and mutation. In this method, the effects of environmental factors, such as temperature, depth and flow rate on the capacitive differential pressure (CDP) sensors, were discussed. To compare the fusion effect of the IGA-RBF method, the sediment concentration data were fused and processed using unary linear regression (ULR), multiple linear regression (MLR), back propagation (BP) neural network, standard RBF (S-RBF) methods, adaptive GA-optimized RBF (AGA-RBF) and dynamic GA-optimized RBF (DAGA-RBF). The results show that the IGA-RBF method can effectively eliminate environmental influences and raise the measuring accuracy and stability of the system. weighing method cannot accurately reflect the real conditions. In addition, the measuring process is timeconsuming and labor-intensive, which is a barrier to real-time measuring of the HSSC in the Yellow River.Currently, there are many modern methods for measuring HSSC worldwide which include turbidity, optical transmission, acoustic, capacitive, beam reflectance, laser diffraction, nuclear, and spectral reflectance [1,3,4,[6][7][8]11]. However, these methods are subjected to the following limitations, at least one of them: (1) small measurement range [1]; (2) strong particle-size dependency [5]; (3) too expensive and delicate instruments in fluvial environment; (4) vulnerable to environmental factors such as temperature, flow velocity and so on [10].

show abstract

Laboratory monitoring approaches for tailings settling and evaluation of flocculant and coagulant treatments

Babak

Li²,

Cabrera

et al. 2021

Can J Chem Eng

View full text Add to dashboard Cite

X-ray computer tomography (CT), magnetic resonance imaging (MRI), and nuclear magnetic resonance (NMR) are applied for laboratory monitoring of the settling behaviour in tailings suspensions. It is shown that the developed monitoring techniques are consistent with each other and provide different levels of information from 2D density cross-sections obtained using X-ray CT to 1D and bulk water content using MRI and NMR. Analysis of coagulant and flocculant treatments based on obtained measurement information is conducted using linear and nonlinear kinetic modelling approaches. The linear Roberts' kinetic model describes the settling of original tailings suspensions very well, but it is not adequate for the suspensions treated with additives. A modified nonlinear Roberts' model is developed and successfully applied to analyze the suspension with additives. The analysis of combined flocculants and coagulants treatments reveals that flocculants significantly affect the settling rate; however, they decrease the efficiency of settling with respect to the residual water content. Coagulants affect mostly the residual water content in samples, but do not change the settling rate significantly. The trade-off between concentrations of coagulants and flocculants needs to be achieved for optimal settling treatments.

show abstract

Capacitive sensing technique for silt suspended sediment concentration monitoring

Cited by 7 publications

References 24 publications

Continuous measurement of suspended sediment concentration: Technological advancement and future outlook

Continuous measurement of suspended sediment concentration: Technological advancement and future outlook

The study of data fusion for high suspended sediment concentration measuring using the IGA-RBF method

Laboratory monitoring approaches for tailings settling and evaluation of flocculant and coagulant treatments

Contact Info

Product

Resources

About