Novel method for optimizing the dewatering rate of a coal-bed …
Therefore, dewatering rate optimization is so important for the CBM production. ... (2018) Characteristics of in-situ stress state and prediction of the permeability in the Upper Permian coalbed methane reservoir, western Guizhou region, SW China. Journal of Petroleum Science and Engineering 165(2): ...Web
اقرأ أكثر(PDF) High capacity dewatering plants
In this study, optimization of dewatering process in Zareshouran gold processing plant is carried out using hydrocyclone containing circuit. For this purpose, 12 experiments using 4 spigots with 2 ...Web
اقرأ أكثرCoal Pores: Methods, Types, and Characteristics | Energy & Fuels
Coal pores are the locations of coalbed methane occurrence and enrichment and the main storage space targeted in CO2 sequestration. The systematic investigation of the coal pore structure and its development is of great significance to provide insights into coalbed methane generation, coal mine gas outburst mechanisms, and coal seam CO2 …Web
اقرأ أكثرSingle-step dynamic dewatering of microalgae from dilute …
Background Dewatering constitutes a major challenge to the production of microalgae, accounting for 20–30% of the product cost. This presents a setback for the applicability of microalgae in the development of several sustainable products. This study presents an investigation into the dynamic dewatering of microalgae in a combined …Web
اقرأ أكثرField experiments and numerical simulations of whirlpool
Four schemes for the foundation dewatering were simulated to test the dewatering design. The duration of pumping was 1 month. The results are shown in Figs. 9, 10, 11, and 12. It can be seen that the previous three schemes can only reach certain drawdown, which can be used to determine the number of operating wells corresponding …Web
اقرأ أكثرA two‐step coordinated optimization model for a dewatering …
To solve these problems, the authors propose a two-step coordinated optimization model for the dewatering process based on production data. The …Web
اقرأ أكثرDetermination of the optimum polymer dose for dewatering of oil …
The results of the research indicate that thickening and dewatering optimization of oil sands tailings can be achieved by directly measuring the polymer concentration using an in-line UV–vis spectrophotometer that can generate real-time information. ... At this state, these fine tailings are called mature fine tailings or MFT …Web
اقرأ أكثرNumerical simulation of deep foundation pit dewatering and optimization
DOI: 10.1016/J.ENGGEO.2010.05.002 Corpus ID: 129761778; Numerical simulation of deep foundation pit dewatering and optimization of controlling land subsidence @article{Zhou2010NumericalSO, title={Numerical simulation of deep foundation pit dewatering and optimization of controlling land subsidence}, …Web
اقرأ أكثرQuantitative optimization of drainage strategy of coalbed
The unsteady-state nature of sorption and diffusion phenomena in the micropore structure of coal: part 1—theory and mathematical formulation. ... B. X. et al. Dewatering rate optimization for ...Web
اقرأ أكثرDewatering 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 …Web
اقرأ أكثرUninterrupted lift of gas, water, and fines in unconventional gas …
Dewatering is currently done using mechanical lift pumps, mainly progressive cavity pumps (PCPs), located internally at the bottom of the wells, about 200–1000m below the surface. ... fully developed under the steady-state condition, ... Dewatering optimization of coal seam gas production wells: a review and future perspectives. …Web
اقرأ أكثرHow to Optimize Polymer Efficiency for Better Sludge …
Fairfield-Suisun Sewer District, CA. Solano County, CA, 40 miles North San Francisco. Design capacity: 24 MGD tertiary treatment/ UV. Population served: 135,000. Polymer use for dewatering (screw press) and thickening (GBT) Problems with existing polymer system. Struggled to make proper polymer solution.Web
اقرأ أكثرDr Zhongwei Chen
Dewatering optimization of coal seam gas production wells: a review and future perspectives. Energy and Fuels, 36 (17), 9785-9820. doi: 10.1021/acs.energyfuels.2c01575 ... Reassessment of coal permeability evolution using steady-state flow methods: the role of flow regime transition. International Journal of Coal Geology, 211 103210, 103210 ...Web
اقرأ أكثرEnhanced technology for sewage sludge advanced dewatering …
Mechanical dewatering techniques include pressure filtration, centrifugation, and others. Furthermore, there are some novel dewatering techniques for sludge, such as vacuum. Economic analysis. In order to apply sludge conditioning and dewatering methods in practice, cost estimates must be considered.Web
اقرأ أكثرA 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. ... [11], which supports the simulation and optimization of only the steady state. This approach means that in the dewatering system, for each well, only a single rate of ...Web
اقرأ أكثرFrontiers | Development of a Two-Stage Microalgae Dewatering Process
Aluminum cost was taken to be $ 1.733/kg 1, alum cost $ 0.2/kg 2, the electricity cost was $ 0.105/kWh (The State Grid Corporation of China/Fujian Province ... further combination of other different single dewatering technologies, optimization of different working parameters, choice of process materials and chemicals, and rigorous life cycle ...Web
اقرأ أكثرImprovement of Sludge Dewatering by Ultrasonic Pretreatment
Nowadays, treatment and dewatering of sludge are one of the most difficult processes in wastewater treatment plants and a major challenge for professionals and officials. Reducing the volume of sludge production in activated sludge method is very important. Dewatering process is responsible for separating excess water from the …Web
اقرأ أكثرResearch on Multi-Objective Optimization Model of Foundation …
This study focuses on optimizing the foundation pit dewatering scheme using the foundation pit dewatering theory and the principles of multi-objective optimization. It explores the development of a multi-objective optimization model and efficient solution technology for foundation pit dewatering. This research focuses on the …Web
اقرأ أكثرTitle: Centrifuge Optimization
Decanter Centrifuges for Sludge Dewatering WELCOME TO DECANTER CENTRIFUGE OPTIMIZATION! This seminar shall be a practical guidance to centrifuge optimization. Topics are: Theory of Operation Process Parameter Adjustments Any questions will be answered at the end of this presentation. Duration: 30 minutes with 15 minute question …Web
اقرأ أكثرDesign of Cost Effective Dewatering System in …
Keywords: dewatering, optimization, ground water modelling. ... A response function for steady state condition is developed in this study. The steady-state drawdown response function in discrete form may be …Web
اقرأ أكثرMicroalgal dewatering with focus on filtration and antifouling
Recovery of microalgae from culture is the first and most vital stage in biomass downstream processing [7].The aim of harvesting and dewatering is concentrating the culture to slurry of about 15–25% solid, a cake or solid for further downstream processing [37].Microalgal harvesting and dewatering can be carried out via single-stage or multi …Web
اقرأ أكثرOptimising development and production of naturally
Optimization of production rates is essential to realize higher ultimate recoveries. Lower ultimate recovery (20% and less) results from higher viscosities (e.g. Gela and Rospo Mare fields, Italy) or excessively high production rates and early water breakthrough (e.g. Liubei Field, China, and Emma Field, USA) where early cessation of …Web
اقرأ أكثرA simulation-optimization approach for optimal design of …
1. Introduction on the excavation size, soil type, and local environmental regulations. Dewatering is an engineering technique to solve the problems Dewatering system …Web
اقرأ أكثرOptimization schemes for deep foundation pit dewatering under
The design and optimization of the dewatering scheme for deep foundation pits in a highly permeable heterogeneous layer are critical to protect water resources, control subsidence and mitigate environmental impacts. Numerical simulation is an important and sometimes the only tool in the design of dewatering schemes, especially when the …Web
اقرأ أكثرA simulation-optimization approach for optimal design of dewatering
the state variables, and the optimization management model, ... The results indicate that the dewatering optimization procedure developed in this paper can serve as a useful template and framework ...Web
اقرأ أكثرDewatering System Control by MATLAB Software
Dewatering technology is influenced by geology, groundwater levels, and the type of excavation. Sumps, wells, and well points are the most popular dewatering methods. Sumps perform best in fine-grained soils or coarse boulder deposits; pumping from perforated drums or casings in a gravel-Web
اقرأ أكثرDewatering rate optimization for coal-bed methane well based on …
Xu et al. (2017) proposed dewatering rate optimization method based on the characteristics of pressure propagation. And the critical state in his literature is that the BHP drops to the critical ...Web
اقرأ أكثرMGO Dewater Tutorial
MGO Tutorial - Dewatering Scenario Introduction Pumping well optimization technology is used to determine the ideal pumping well locations, and ideal pumping rate s at these locations, in order to minimize or maximize a specified criteria. Typically, pumping well optimization is used in the following applications:Web
اقرأ أكثرFinite Element Numerical Simulation of Three-Dimensional
Accordingly, the three-dimensional finite element numerical simulation is the basic theory of optimization design of engineering structures of dewatering in deep foundation pit in such areas. For deep foundation pit dewatering in the Yangtze River Delta, it is easy to make a dramatic decrease of the underground water level surrounding the …Web
اقرأ أكثرOptimal dewatering of an excavation site by using the linked …
Review of these approaches and state-of-the-art reports can be found in Gorelick (1983), Yeh (1992), and Das & Datta (2001). ... Aguado & Remson (1980) developed a model to solve the dewatering optimization problem for maintaining low water levels in an excavation site. They considered a fixed-charge problem with installation and …Web
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