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A simulation-optimization approach for optimal design of dewatering

The results show that the optimization of the dewatering implemented in this research can provide a useful model and framework for solving dewatering of mining site problems. The optimization of a pumping well was used by [3] to identify the perfect pumping well locations and rates to maximize or minimize specified criteria. The most …

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Smart de-watering and production system through real-time water …

The dewatering using various artificial lift methods such as sucker rod pump, electrical submersible pump, progressing cavity pump, jet pump, hydraulic piston pump, and gas lift. Optimization of tubing and casing sizes is crucial to minimize the energy consumption required for artificial lift (Oyewole and Lea, 2008).

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A short manual on natural pumice as a lightweight aggregate

Pumice colour is frequently gray or white or ranges from white to gold to brown to black. This mainly depends on the chemical composition of the pumice. Pumice ore consists mainly of low amount of TiO 2 and SO 3, CaO (1–2%), Fe 2 O 3 (1–3%), Na 2 O-K 2 O (7–8%), Al 2 O 3 (13–17%) and SiO 2 (60–75%). The specific gravity of pumice ...

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PNWS-AWWA

PNWS-AWWA

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Optimisation of dewatering systems

The required conditions for ef fective optimisation of dewatering systems include: clarity of the objectives of optimisation; adequate site investigation data; development of a valid …

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Mathematical model and optimization of continuous electro …

The model developed in this work is fundamentally based in soil mechanics, electrokinetic phenomena, and fluid dynamics through porous media and has been shown to adequately represent experimental data collected for the operation of the lab-scale continuous electrokinetic dewatering prototype. An optimization strategy for an …

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Optimization of dewatering process of concentrate pressure …

Optimization of dewatering process of concentrate pressure ltering by support vector regression Huizhong Liu* & KeshunYou This work studies the mechanism and optimization methods of the lter press ...

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Role of different natural materials in reducing

The sludge formed as a result of the treatment is given to the thickening and dewatering units, respectively. Pumice was obtained from Soylu Mining Industry (Nevsehir, Turkey); expandable perlite was procured from Akper Mining Industry & Trade Co. Ltd. (Çankırı, Turkey); and expandable vermiculite was provided from Fitar Agricultural ...

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A review on pumice for water and wastewater …

A number of 143 papers published focused on the removal of cadmium, dyes, color, and many other pollutants by adsorption and …

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Management and dewatering of brines extracted from

This value was developed from an optimization of extraction well placement and extraction ratio to prevent the escape of CO 2 through the ... filtration or membrane filtration. Media filtration uses various types of media including anthracite, fiber balls, pumice, sand, garnet ... If a brine dewatering process was assumed to operate at ...

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Effects of sucrose amendment on ammonia assimilation

The aim of this study was to evaluate the laboratory-scale composting of sewage sludge and pumice mixtures that were amended with sucrose. The variation in temperature, pH, NH 4 +-N, ammonia emission, bacterial community, ammonia assimilating bacteria (AAB) populations and enzymatic activity related to ammonia assimilation …

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LAB-SCALE RECUPERATIVE THICKENING: …

study of RT processes was conducted at the lab scale; a demonstration of the optimization of polymer assisted dewatering is given and biogas production and quality monitored. Two custom designed digesters (capacity = 1.5 L) were operated in parallel with one acting as a 'control' digester and the other operating under a semi-batch RT mode ...

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Optimizing Polymer Mixing/Activation Improves Sludge …

Improves Sludge Dewatering: Case Studies 2018 Joint PA-AWWA/PWEA/PMAA Water and Wastewater Technology Summit ... Annual Average Dewatering Cost (2 011-2014) = $3.7M K. Tagney and R. Gupta, Reducing Dewatering Costs through Optimization Program, 2017 WEFTEC. Dewatering Cost at EMWD - $3.7M/yr Polymer Cost - Average $1.2 M/yr …

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Sustainability | Free Full-Text | Optimization of the Well Start-Up

The Electrical Submersible Pump (ESP) systems were deployed in two gas wells for the dewatering of the gas reservoir. However, problems, such as the failure to start up the ESP, and changes in reservoir parameters occurred during the production. For the first problem, the well start-up operation records indicate that the ESP's gas locking …

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Numerical Simulation of Deep Foundation Pit Construction

Based on the deep foundation pit project of Laoguancun station of Wuhan rail transit line 16 and according to the engineering characteristics of the construction conditions and the site surrounding the environment, the method of combining field monitoring and finite element numerical simulation is adopted to analyze the law of stress and deformation of the deep …

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Hydrothermal alkaline conversion of sewage sludge: optimization …

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Sludge conditioning, thickening and dewatering optimization in

Centrifuge are common machines used for sludge thickening and dewatering in wastewater treatment plant but performances and optimal setting parameters are often difficult to predict and optimize, owing to complex mechanisms occurring during separation and high shear stresses undergone by flocs. Labo …

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Selection and optimization of mine pumping systems

This paper looks at managing the quantity of water entering a hypothetical open pit mine. An effective and efficient dewatering system employing the creation of sumps and pumping systems was designed. A suitable pump for the dewatering system was also selected. The total quantity of water entering the mine per day was estimated to be 8114 m 3.

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(PDF) Optimization of Open-Pit Mine Depressurization

Also, in previous studies, several researchers [17, 37, 38] have employed the MODFLOW model for the design and optimization of foundation pit dewatering projects and concluded that it can simulate ...

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Dewatering rate optimization for coal-bed methane well based on …

Dewatering rate optimization. Fig. 5 is a schematic diagram to show the relationship between dewatering rate and pressure propagation. It is seen that low dewatering rate will cause gentle pressure funnel and long investigation distance, while high dewatering rate is companied with sharp pressure funnel and short investigation …

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Optimization of a full-scale dewatering operation based on the

Rheology is the science that deals with the flow and deformation of materials, and it has become an important tool in optimizing sludge dewatering. This study presents torque …

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Dewatering Optimization of Coal Seam Gas Production Wells: A …

Determining the optimum dewatering strategy is currently in a very primitive stage of development, and CSG operators rely on empirical and instinctive approaches to deal with this problem. This paper conducts a comprehensive literature review to (i) explain why dewatering rate optimization remains a great challenge for the CSG industry, (ii ...

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Optimization of the Well Start-Up Procedure and Operating …

Keywords: electrical submersible pump; gas well dewatering; optimization of well start-up proce-dure; optimization of operating parameters; node analysis method 1. Introduction As one of the most important clean energies, natural gas is playing an important role in the world energy market [1]. To promote the optimization of the energy structure ...

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Optimization method and application research of dewatering …

The comparison between optimization scheme and initial scheme are presented as table 3: Table 3. The comparison between optimization scheme and initial scheme. Area purpose Optimizati on scheme Initial scheme N D(m) N D(m) Area II dewatering 5 1911 Area I dewatering 102 31~48 93 48 anti-inrush(Area-Tower) 8 73 14 73 Pit outside 7

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Sludge conditioning, thickening and dewatering optimization in a …

Mechanical dewatering processes are commonly used to reduce the sludge volume; aiming at the optimization of energetic or agricultural recovery of the sludge, storage and transport. Dewatering by screw centrifuge is one of the most important and widely used operation in sludge treatment.

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Study on screening performance and parameter optimization …

In improving dewatering performance, Dong et al.1,2 developed a vibrating-dewatering screen with a unique structure that uses side plate beam excitation. Shi3 studied the high-frequency coal slime vibrating-dewatering screen, and analyzed the parameters selec-tion method and structural design characteristics of the machine.

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Sludge conditioning prior to dewatering: Introducing drainage index as

The conditioning stage is a key parameter for enhancing the efficiency of sludge dewatering. However, the choice of the conditioning procedure (type of flocculant, dosage, mixing conditions) remains a current difficulty.A new index (called drainage index) was introduced to optimize conditioning parameters specifically for sludge thickening on …

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Cationic polyacrylamide induced flocculation and turbulent dewatering

The following optimization goals were set along with supporting considerations; (a) Microalgae at harvest often has pH between 6 and 8. Thus, the goal for pH optimization was set to range between the pH values 6–8, to avoid the anticipated additional process costs associated with pH adjustment during dewatering. (b)

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Stochastic chance-constrained optimization framework for the …

Rolling horizon optimization for the thickening-dewatering can improve the optimization effect. This paper is organized as follows. The mineral processing plant and the stochastic chance-constrained optimization framework are described in Section 2. The feed quantity predictive model is established by GCA and PLS in Section 3.

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Bashir SALAH | Professor (Associate) | Doctor of Engineering

Dr. Salah works as assistant professor of industrial engineering (IED) at King Saud University. His job involves conducting research as well as teaching undergraduate courses in the area of ...

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