Results 31 to 40 of about 1,071,876 (307)
Phosphorus retention capacity in red ferralitic soil [PDF]
, 2014 In this study the main physical-chemical characteristics of red ferralitic soil to use as substrate in subsurface wetlands was determined. The P-removal was evaluated in a short-term isotherm batch experiment and in a column percolation experiment.
Bossens, J +3 more
core +1 more source
Results in Engineering, 2022 The natural mineral known as Mexicalcite is native to the southern region of Mexico, and due to its abundance and accessibility characteristics, as well as its insolubility in water, it is recommended as an adsorbent material.
Julian Cruz-Olivares +5 more
doaj +1 more source
Dynamic Behavior of Precast Concrete Beam-Column Sub-Assemblages with High Performance Connections Subjected to Sudden Column Removal Scenario [PDF]
, 2020 Unbonded posttensioned precast concrete (UPPC) structure has shown its excellent aseismic performance in laboratory tests and earthquake investigation.
Deng, X., Fu, F., Hu, H., Qian, K.
core
Theoretical and experimental research on progressive collapse of RC frame buildings [PDF]
Urbanism. Arhitectura. Constructii, 2013 Progressive collapse of the buildings has become an important issue to be studied in recent years due to the catastrophic nature of its effects. This subject can be approached from two different perspectives: one where an ideal collapse of the structure ...
Marin Lupoae +2 more
doaj
BMC Musculoskeletal Disorders, 2022 Background Injuries of the tarsometatarsal joint complex ranging from purely ligamentous to multidirectionally unstable midfoot fracture-dislocations are anatomically fixed to minimize long-term sequelae including post-traumatic arthritis, pes planus ...
Saranya A. Sethuraman +4 more
doaj +1 more source
Progressive Collapse Analysis Of Flat Slab Buildings With Post-Punching Effect [PDF]
مهندسی عمران شریف, 2021 The reinforced concrete flat slab is one of the types of floor systems used to construct residential, office and parking buildings. Because of the direct transfer of floor loads to columns, flat slabs are susceptible to punching failure in slab-column ...
E. Mousapoor, V. Ghiasi, R. Madandoust
doaj +1 more source
Ion Exchange-Precipitation for Nutrient Recovery from Dilute Wastewater [PDF]
, 2015 Regulated phosphorus (P) and nitrogen (N) discharges and the cost of fertilizer provide economic drivers for nutrient removal and recovery from wastewater.
Mayer, Brooke K. +2 more
core +2 more sources
Intensification of heat removal in diabatic columns
Journal of Physics: Conference Series, 2020 Abstract Diabatic units having heat exchanger tubes functioning as dephlegmators on trays, which allow to reduce the cost of the process, are considered. It is shown that the most efficient approach is to arrange heat removal with the film flow of the heat carrier in the diabatic column dephlegmator.
N A Voinov +4 more
openaire +1 more source
Arsenic removal in a sulfidogenic fixed-bed column bioreactor
Journal of Hazardous Materials, 2014 In the present study, the bioremoval of arsenic from synthetic acidic wastewater containing arsenate (As(5+)) (0.5-20mg/L), ferrous iron (Fe(2+)) (100-200mg/L) and sulfate (2,000 mg/L) was investigated in an ethanol fed (780-1,560 mg/L chemical oxygen demand (COD)) anaerobic up-flow fixed bed column bioreactor at constant hydraulic retention time (HRT)
Altun Muslum() +5 more
openaire +4 more sources
Development of Submerged Biofilter Design for Wastewater Conservation: Carbonaceous Removal Study [PDF]
, 2019 This stuy aims to determine the operational parameters of submerged biofilter and to develop a model that can be used to estimate the elimination rate of pollutant using aerob and anaerob reactors.
Febrianti, W. (W) +4 more
core +2 more sources