Scrubber systems abate the sulphur oxide emissions of engines when cheap fuel oils that are high in content employed as combustibles. However, ships with these voluminous devices installed on board is space demanding. This work analyses feasibility incorporating acoustic abatement exhaust gas noise functionality into scrubber design to provide a combined scrubber–silencer system. For this purpo...

This paper presents comments and recommenda­ tions regarding conceptual design specifications for dry scrubbers (also known as wet/dry scrubbers) for use on waste-to-energy facilities. These recommendations would be used to develop minimum acceptable design parameters for requests for proposals for full-service or turnkey waste-to-energy contractors. The reason for presenting these comments and...

The performance of particulate-laden SO(2) scrubbing in a modified tapered bubble column with internals is reported in this article. The presence of particles improved the particulate-laden SO(2) removal efficiency to about 15% that was elucidated by the facilitated adsorptive mass transport. Experimentation revealed that nearly 100% removal efficiency of particulate-laden SO(2) was achievable ...

Biological treatment is a promising alternative to conventional air-pollution control methods, but thus far biotreatment processes for odor control have always required much larger reactor volumes than chemical scrubbers. We converted an existing full-scale chemical scrubber to a biological trickling filter and showed that effective treatment of hydrogen sulfide (H2S) in the converted scrubber ...

Wet scrubbers are mainly used to remove undesirable gaseous components from flue gases. Normally most scrubbers have low removal efficiency for fine particles. One way to increase the fine particle removal efficiency is to use pre-charging. Particles can be charged by corona discharge like in an electrostatic precipitator. Charged fine particles are removed by the combined effect of i. Inertial...

The traditional cyclone with spray scrubber was developed for the removal of airborne silica particles from local exhaust ventilation (LEV). The objective of this research is to evaluate the efficiency of this process for removing silica particles in LEV. After designing and installing a traditional cyclone and spray scrubber, air samples were obtained at the inlet and outlet of the apparatus. ...

Tests of the Saarberg-Halter Umwelttechnik GmbH (S-H-U) flue gas desulfurization (FGD) process were performed November 12-20, 1998. while burning the design coal at the NYSEG Milliken Station Unit No. 1. The objectives of the test program using the design coal were to demonstrate the effect of cocurrent and countercurrent liquid-to-gas ratio on SO, removal and scrubber operability. Measurements...

Multi-objective optimization of a venturi scrubber was carried out using a three-dimensional model for collection efficiency and non-dominated sorting genetic algorithm (NSGA). Two objective functions, namely (a) maximization of the overall collection efficiency, and (b) minimization of the pressure drop were used in this study. Three decision variables including two operating parameters, viz l...

In this article we have made an attempt to survey some results on performance of jet ejector. The literature is also reviewed to pursue further work in this area. Key wordsHEVS, EVS, jet ejector, performance of venture scrubber, characteristics of jet ejector, efficiency