Many epidemiological studies have shown that long-term exposure to high PM2.5 concentrations can significantly increase the morbidity and mortality of different diseases. Air cleaners are effective in removing PM2.5. In present research, filter units were tested determine their filtration efficiency. The face velocity was adjusted 50%, 75%, 100%, 125%, 150% corresponding rated airflow. single-p...

This paper describes the experimental results of removing arsenic from dust collected in electrostatic precipitators a fluidized bed roasting furnace (RP dust). The process generates 600 kilotons copper concentrate per year with 3 - 6 wt% concentration arsenic, producing roasted product low content below 0.3 wt%. 27 RP order 5 and around 20 Subsequently, is treated by hydrometallurgical methods...

In this study, a numerical simulation model and an analytical method are introduced to evaluate the particle collection efficiency transport phenomena in electrostatic precipitator (ESP). Several complicated physical processes involved ESP, including turbulent flow, ionization of gas by corona discharge, particles’ movement, displacement electric charge. The attachment ions charges suspended pa...

the electrohydrodynamic (EHD) flow in a relatively wide electrostatic precipitator (ESP) (width:height = 2) is 2-or 3-dimensional (3D). The previous our measurements of 3D time-averaged flow velocity fields suggested that the flow in the ESP duct centre is almost 2-dimensional. In this paper we present both the 3D instantaneous and time-averaged flow velocity fields in a relatively wide ESP (wi...

Electrostatic precipitators (ESPs) are now being tasked with simultaneously removing particulate matter (PM) and trace gas-phase pollutants such as mercury released during coal combustion. This represents a significant expansion of their original operational mission, one which is not captured by decades old quasi-1-D analytical expressions developed from first principles for predicting PM remov...

For some electrostatic precipitators, profiled steel sheets are used as casing wall which is subjected to both bending and vertical compression. By nonlinear finite element method, the influences of structural parameters on load bearing capacity of profiled steel sheet wall were investigated. For the loading path, the uniform transversal pressure was applied firstly, and then the vertical compr...

The ElectroCore is a new particulate control technology which is intended to augment the performance of aging or underperforming ESPs. Unlike conventional electrostatic precipitators which collect particles on their surfaces, the ElectroCore acts as a separator thereby allowing it to overcome many of the common reentrainment problems. A pilot-scale Advanced ElectroCore Field Prototype was insta...

Efforts to reduce anthropogenic mercury emissions worldwide have recently focused on a variety of sources, including mercury emitted during coal combustion. Toward that end, much research has been ongoing seeking to develop new processes for reducing coal combustion mercury emissions. Among air pollution control processes that can be applied to coal-fired boilers, electrostatic precipitators (E...