Optimal design and dynamic control of construction …
The existing dewatering design methods are mostly based on the optimization of pumping rate needed to maintain a stable water level, while the drop …
Optimal dewatering of an excavation site by using the
A three-dimensional finite element model combined with an optimization approach based on linear mixed integer programming is developed and applied to assist in the design of the dewatering system ...
Optimization of Dewatering Systems
Optimize dewatering systems in Edmonton for efficient and sustainable water management. Enhance your project with expert solutions. (780) 466-7799 ... Numerical optimization is the third approach that uses two or three-dimensional numerical groundwater flow models that allows results to be demonstrated visually for clients who …
Frontiers | Development of a Two-Stage Microalgae Dewatering Process
For biofuels production, the main objective of dewatering is to concentrate the dilute microalgae suspension of about 0.02–0.06% to 5–25%, and this is achievable in a two-step dewatering process where the primary stage is aimed at 2–7% and the secondary stage produces 15–25% of microalgae slurry (Uduman et al., 2010). However, with the ...
A combined experimental-modeling approach for turbidity …
The present paper shows the results of the application of a combined experimental-modeling approach for turbidity removal optimization in a coagulation–flocculation unit of a full-scale drinking water treatment plant. The applied approach consisted of a laboratory experimental activity aimed at determining the best …
Research progress in improving sludge dewaterability: …
Operational optimization of electrochemical dewatering. In addition to the mechanical dewatering operations such as pressure, processing time, and cake thickness, the performance of electrochemical dewatering is closely associated with electric field conditions including voltage and current (Bai et al., 2019; Zhang et al., 2022c).
Optimization of dewatering process of concentrate …
Optimization of dewatering. process of concentrate pressure filtering by support vector regression. Huizhong Liu* & Keshun You. This work studies the mechanism and …
Coupled simulation–optimization model for draining
A workflow framework was proposed to conduct the optimization based on GIS and a coupled simulation–optimization approach. An algorithm was designed, and a C++ program was developed to couple FEFLOW with a modified genetic algorithm to search for the optimal solution. ... (2013) Groundwater dewatering optimization in the …
Coupling electro-dewatering and low-temperature air …
When 35 V voltage was applied for sludge electro-dewatering, it can directly reduce the water content to about 55 wt% within 15 min, and then air-drying to 20 wt% water content took about 100 min ...
Collaborative Optimization Framework for the Industrial …
Reducing the economic expenditure on electricity in the thickening-dewatering process is a viable approach to enhancing production efficiency and minimizing energy consumption.
Sludge conditioning, thickening and dewatering optimization …
Dewatering by screw centrifuge is one of the most important and widely used operation in sludge treatment. ... As the properties of the sludge can change with time, a repetition of the optimization attempts is recommend at regular intervals to limit overdosing but is time consuming at full scale. ... The proposed approach could …
Dewatering rate optimization for coal-bed methane well …
The mostrecent optimization method is proposed by Xu et al. (2017), and is developed on the basis of pressure-propagation characteristics at the dewatering stage. They hold the viewpoint that the ...
Coupling mechanism and parameter optimization of …
Pressurized electro-dewatering technology is considered to be one of the most effective methods for improving dewatering performance of sewage sludge.In this paper, four dewatering protocols were developed to further explore the coupling mechanism of sludge dewatering through mechanical pressure, electric field and their …
Groundwater dewatering optimization in the Shengli no. 1 …
The results indicate that the dewatering optimization procedure developed in this paper can serve as a useful template and framework for solving mining related water problems. ... Wang PP (2002) A field demonstration of the simulation optimization approach for remediation system design. Ground Water 40(3):258–266. Article Google …
Simin JIANG | Professor (Associate) | PhD
In this study, we addressed this problem by a linked simulation-optimization approach. This approach couples a contaminant transport simulation model with a Kalman filter-based method to identify ...
Combined Simulation-Optimization of an Excavation Site for Dewatering …
Optimal decision of dewatering of an excavation area in an unconfined aquifer is searched by using the combined optimization-simulation approach. In combining groundwater model with the optimization model, response matrix approach, generated on the basis of linear superposition, is used. MODMAN that calls MODFLOW repeatedly to generate …
Performance evaluation of Fe-based water treatment sludge …
This research attempted to investigate the feasibility of using drinking water treatment sludge (ferric chloride sludge, FCS) as a coagulant for turbidity removal from iron ore tailings slurry. The evaluation was performed in two phases. In the first phase, the one factor at a time (OFAT) approach was used to study the effects of FCS dosage, initial …
A simulation-optimization approach for optimal design of …
The results show that the groundwater simulation–optimization approach can be adopted to attain optimized dewatering system designs and gives reasonable results as it takes into consideration all circumstances and parameters that may affect …
Collaborative Optimization Framework for the Industrial …
Reducing the economic expenditure on electricity in the thickening–dewatering process is a viable approach to enhancing production efficiency and minimizing energy consumption. However, limited research has been conducted on co-optimization strategies for this process thus far. To address this gap and decrease the …
Structural optimization of a demulsification and dewatering …
The desirability approach was utilized, thereby a new model was developed expressing the desired Smix/FA ratio in the absence and throughout the oil content range; this model approximated a 0.41 ...
Sludge conditioning, thickening and dewatering optimization …
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 ...
Optimization of Sludge Dewatering Through Pretreatment, Equipment
The selection and design of a sludge dewatering process needs to include both cake dryness and sludge-handling capacity in the economics analyses to achieve the optimum design. Keywords: Compressibility
Flow Chart of the GA Method [6].
Download scientific diagram | Flow Chart of the GA Method [6]. from publication: A simulation-optimization approach for optimal design of dewatering systems in unconfined strata | Visual Modflow ...
Sludge conditioning, thickening and dewatering optimization …
Many physico-chemical parameters are usually measured on sludges and their impact on the ability of the sludges to be dewatered have been discussed by numerous authors (Raynaud et al., 2012).The difficulties in sludge/biosolids dewatering can be mainly related to the highly compressible nature of sludge and its high organic content that can …
Impact of Conditioning Agent Addition Sequence on Dewatering …
The advanced anaerobic digestion process enhances sludge resource utilization. However, thermal hydrolysis pretreatment of anaerobically digested sludge reduces dewatering efficiency due to excessive organic matter decomposition. This necessitates significant time and effort for sludge conditioning in wastewater treatment …
A simulation-optimization approach for optimal design …
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.
Optimal dewatering of an excavation site by using the …
In this study, a linked simulation–optimization approach is proposed for optimal dewatering system design for an excavation site. In the simulation part of the proposed approach, an analytical groundwater flow model is used to simulate the flow process in the subsurface.
A simulation-optimization approach for supporting …
Kumar et al. (2006) proposed a fuzzy optimization model of sewage discharge, which could identify economically and technically feasible water quantity management schemes at the basin scale. Hu et al. (2012) proposed an inexact fuzzy two-stage programming for supporting multi-water resources management under multi …
Progress of improving waste activated sludge
Most of the physical pretreatment researches are in the laboratory stage, mainly focusing on the improvement of sludge dewatering and the optimization of process parameters. There are few studies on industrial application and lack of discussion on energy and environment problems in the treatment process. ... Two-step approach of ozonation …
Optimization of sewage sludge conditioning and pressure dewatering …
The results showed that the dewatering performance of the four dewatering protocols were as follows: pressurized electro-dewatering with constant voltage gradient mode (G-PEDW) > first mechanical ...
