1989-3-1 Optimization of a mechanical peat dewatering process by using multivariate data analysis Banda Herath and Christer Albano Peat Research Laboratory, Box 5097, S-900 05 Ume Sweden [Received 6 April 1988; revised 26 September 1988} A new experimental design (nearly orthogonal experimental design) was used for a dewatering study under laboratory conditions with two type of peats.
Abstract A new experimental design (nearly orthogonal experimental design) was used for a dewatering study under laboratory conditions with two type of peats. This design was able to test more levels for each design variable with considerably fewer experiments than the usual factorial or fractional factorial designs. The process under study is dependent on many variables and instead of a
AbstractPeatland drainage and peat extraction result in runoff water rich in humus, sediments, and nutrients that requires simple purification methods to prevent pollution of surface waters. Optimization of Gravity-Driven Hydraulic Flocculators to Treat Peat Extraction Runoff Water Determination of Wastewater Sludge Dewatering
2021-5-18 Peat Area Options Dewatering Trenches . Peat Area Options Excavation and Dewatering . Peat Area Options Treatment and Dilution . Long term monitoring and optimization key to success . Questions ? Ranjeet Nagare, PhD . WorleyParsons Canada Services Ltd. [email protected] Phone: +1
This study considered the possibility of using water expressed during the drying of fuel-grade peat as a substrate for microbial growth. Highly humified peat pressed for 2.5 min at 1.96 MPa
2021-1-13 That equipment is now fully functional and critical to the optimization of our production process. But take a step back to 2015, when the concept of dewatering peat was just a wild-eyed dream scribbled on a dinner napkin. The need for an efficient, cost-effective dewatering process was driven by our growing realization that APT’s dependence
2021-8-29 However, thermal drying is required to achieve lower moisture content. One of the pretreatment methods that facilitates the mechanical dewatering of peat to 50 weight percent moisture is wet carbonization. In this process, wet peat is heated under pressure to temperatures in the range of 300 to 1000/sup 0/F from 5 to 60 minutes of residence time.
2021-7-7 dewatering copper flotation gypsum dewatering automatic jual dewatering screen indonesia in surabaya dewatering fluids service peat dewatering pressate dewatering coal water mechanical dewatering upgrading horizontal carbon dewatering screen decks pumice dewatering optimization dewatering existing design how dewatering pump work in mining
1987-6-1 Abstract. Peat, as it exists in nature, contains about 90% water and has a heating value of about 19.8 MJ/kg (dry basis). The water in peat is very difficult to remove by mechaninal means. The current technology can dewater peat to a moisture content of only about 67 wt.%. Wet carbonization is a process whereby carbonaceous materials are heated
age during dewatering of the peat soil. incorporated into the optimization process (Table 2). One reason for this is the fact that the soil was already.
AbstractPeatland drainage and peat extraction result in runoff water rich in humus, sediments, and nutrients that requires simple purification methods to prevent pollution of surface waters. Optimization of Gravity-Driven Hydraulic Flocculators to Treat Peat Extraction Runoff Water Determination of Wastewater Sludge Dewatering
2021-5-18 Peat Area Options Dewatering Trenches . Peat Area Options Excavation and Dewatering . Peat Area Options Treatment and Dilution . Long term monitoring and optimization key to success . Questions ? Ranjeet Nagare, PhD . WorleyParsons Canada Services Ltd. [email protected] Phone: +1
2021-1-13 That equipment is now fully functional and critical to the optimization of our production process. But take a step back to 2015, when the concept of dewatering peat was just a wild-eyed dream scribbled on a dinner napkin. The need for an efficient, cost-effective dewatering process was driven by our growing realization that APT’s dependence
2021-7-7 dewatering copper flotation gypsum dewatering automatic jual dewatering screen indonesia in surabaya dewatering fluids service peat dewatering pressate dewatering coal water mechanical dewatering upgrading horizontal carbon dewatering screen decks pumice dewatering optimization dewatering existing design how dewatering pump work in mining
1987-6-1 Abstract. Peat, as it exists in nature, contains about 90% water and has a heating value of about 19.8 MJ/kg (dry basis). The water in peat is very difficult to remove by mechaninal means. The current technology can dewater peat to a moisture content of only about 67 wt.%. Wet carbonization is a process whereby carbonaceous materials are heated
Effective dewatering and environmental program poised to have a significant impact on the feasibility of saprolite mining operations. It is therefore necessary to strike a balance between an effective dewatering program and sound environmental policy. Using assessments such as rainfall, climate studies, groundwater flow, and aquifer characterizations, the Separi coal dewatering program
Optimization of a combined centrifugal dewatering and thermal flash drying apparatus for the handling of sludge with varying characteristics. April 2011; Conference: 5th International Workshop of
2021-6-21 Acquiring representative values for peat soils is especially difficult, due to the changes in physical and hydraulic properties across the landscape (Lewis et al., 2012), with depth (Könönen et al., 2015) and when subjected to anthropogenic disturbances, for example, volume change due to dewatering (Holden et al., 2004). The alternative is to
2021-6-6 Optimization of operating variables and analysis of their interaction. In order to study the optimal process parameters of sludge dewatering and HA extraction, 17 groups of experiment were designed by Box-Behnken. The results at each point based on the experiment design for the changes of water content and HA extraction rate are shown in Table 2.
2008-10-26 draulic properties of peat soils, especially the hydraulic conductivity. This is in part due to the unique nature of the physical and hydraulic properties of peat soils, such as volume changes during dewatering (Schwa¨rzel et al., 2002; Price, 2003). Only a relatively few measurements of the unsaturated hydraulic conductivity of peat soils
AbstractPeatland drainage and peat extraction result in runoff water rich in humus, sediments, and nutrients that requires simple purification methods to prevent pollution of surface waters. Optimization of Gravity-Driven Hydraulic Flocculators to Treat Peat Extraction Runoff Water Determination of Wastewater Sludge Dewatering
Effective dewatering and environmental program poised to have a significant impact on the feasibility of saprolite mining operations. It is therefore necessary to strike a balance between an effective dewatering program and sound environmental policy. Using assessments such as rainfall, climate studies, groundwater flow, and aquifer characterizations, the Separi coal dewatering program
Coal ranks: The degree of ‘metamorphism’ undergone by a coal, as it matures from peat to anthracite which has an important bearing on the coal physical and chemical properties referred as the ‘rank’ of the coal. Low rank coals, such as lignite and sub-bituminous is typically softer, friable materials with a dull, earthy appearance. They have high moisture levels and low carbon content
2021-6-21 Acquiring representative values for peat soils is especially difficult, due to the changes in physical and hydraulic properties across the landscape (Lewis et al., 2012), with depth (Könönen et al., 2015) and when subjected to anthropogenic disturbances, for example, volume change due to dewatering (Holden et al., 2004). The alternative is to
2016-2-6 Heads within the peat fluctuated between the ground surface and around 0.3 m bgl. recessions in peat head in response to river weed cutting and a reduction in stage were evident, e.g., July 2013, May and July 2014, initiating rapid recessions in the peat water table (Figures 4 and 5).
Climatic impacts of energy-peat extraction are of increasing concern due to EU emissions trading requirements. A new excavation-drier peat extraction method has been developed to reduce the climatic impact and increase the efficiency of peat extraction. To quantify and compare the soil GHG fluxes of the excavation drier and the traditional milling methods, as well as the areas from which the
2021-8-12 Adsorption Characteristics of Copper-Polyamine Chelates on Bentonite and Peat. Conference of Metallurgists, MetSoc (CIM), Symposium on Mineral Processing: Modelling and Optimization of Mineral Processing Systems, ISBN: 978-1-926872-32-2, Toronto, Canada
2017-6-11 电渗法加固地基试验及应用研究进展 郑凌逶, 谢新宇, 谢康和, 李金柱, 刘亦民 1. 浙江大学 滨海和城市岩土工程研究中心,浙江 杭州 310058； 2. 浙江大学 宁波理工学院,浙江 宁波 315100
2019-4-30 Knowing the negative impact of plastic materials from agriculture sources on the environmental pollution, in this chapter, some of research activities carried on the utilization of secondary cellulose fibers (from recovered papers and boards) and other lignocellulosic
2021-9-14 Optimization for the Integrated Operations in an Uncertain Construction Supply Chain IEEE TRANSACTIONS ON ENGINEERING 卷: 64 期: 3 页: 400-414 S C I 收 录 2017 Liu, QR (Liu, Qiurui); Xu, JP (Xu, Jiuping); Qin, F (Qin, Fei) 国外重要刊物