In situ gas treatment technology demonstration test plan

Coal coking wastewater is generated from coking, coal gas purification and coking product recovery process, its composition is complex and difficult to degrade. By introducing the coking wastewater treatment research and application, such as adsorption,coagulation and sedimentation, flue gas treatment and other physical methods, as well advanced oxidation, wet oxidation, Fenton reagent method, photocatalytic oxidation, ultrasonic oxidation, ozone oxidation method, electrochemical oxidation, supercritical water oxidation, incineration and plasma technology, this paper puts forward the trend of coking wastewater treatment technology.

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Climate impact of an optimised gas treatment on old landfills

Waste Management & Research ◽

10.1177/0734242x211070190 ◽

2022 ◽

pp. 0734242X2110701

Author(s):

Roland Berger ◽

Joachim Lehner

Keyword(s):

New Technology ◽

Landfill Gas ◽

Calorific Value ◽

Climate Impact ◽

Treatment Technology ◽

Gas Treatment ◽

Treatment Measures ◽

Established Fact ◽

New Treatment

It is a well-established fact that the quality and quantity of landfill gas (LFG) start declining after a landfill is closed to further waste intake. Conventional gas treatment and utilisation systems such as flares and gas-driven engines require a certain quality of LFG: specifically, a sufficient methane concentration. Various measures are utilised to maintain the necessary quality of LFG, including a turn-down of gas extraction rates and a shutdown of low-quality gas wells, resulting in a decline of LFG production. This, however, does not have to be the case. The low calorific value (LCV) LFG capture and treatment technology developed by e-flox and referred to in this article as ‘LCV LFG System’ can significantly increase the collection rate and the amount of treated methane in an old landfill. This article introduces such new treatment measures, describes gas capture calculation methodologies and presents actual results based on a medium-sized landfill in Germany. The study demonstrates, among other things, that the LCV LFG system can reduce the CO2 avoidance costs to roughly 10 €/tCO2eq. We present this new technology as a quick and straightforward measure of dealing with the climate issues related to methane emissions of old landfills.

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Two-Stage Pot Gas Treatment Technology Allowing the Production of Sodium Sulfate

The Minerals, Metals & Materials Series - Light Metals 2018 ◽

10.1007/978-3-319-72284-9_83 ◽

2018 ◽

pp. 647-654

Author(s):

Viktor Mann ◽

Vitaly Pingin ◽

Aleksey Zherdev ◽

Sergey Pavlov ◽

Yuri Bogdanov

Keyword(s):

Sodium Sulfate ◽

Treatment Technology ◽

Two Stage ◽

Gas Treatment

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Research Progress of Volatile Organic Compounds Waste Gas Treatment Technology

10.47939/ns.v1i2.13 ◽

2020 ◽

Keyword(s):

Volatile Organic Compounds ◽

Organic Compounds ◽

Research Progress ◽

Treatment Technology ◽

Gas Treatment ◽

Waste Gas ◽

Volatile Organic ◽

Waste Gas Treatment

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Electron beam treatment of simulated marine diesel exhaust gases

Nukleonika ◽

10.1515/nuka-2015-0098 ◽

2015 ◽

Vol 60 (3) ◽

pp. 689-695 ◽

Cited By ~ 6

Author(s):

Janusz Licki ◽

Andrzej Pawelec ◽

Zbigniew Zimek ◽

Sylwia Witman-Zając

Keyword(s):

Electron Beam ◽

Removal Efficiency ◽

Diesel Engines ◽

Diesel Exhaust ◽

Irradiation Dose ◽

Treatment Technology ◽

Gas Treatment ◽

Exhaust Gases ◽

Marine Diesel ◽

Removal Efficiencies

Abstract The exhaust gases from marine diesel engines contain high SO2 and NOx concentration. The applicability of the electron beam flue gas treatment technology for purification of marine diesel exhaust gases containing high SO2 and NOx concentration gases was the main goal of this paper. The study was performed in the laboratory plant with NOx concentration up to 1700 ppmv and SO2 concentration up to 1000 ppmv. Such high NOx and SO2 concentrations were observed in the exhaust gases from marine high-power diesel engines fuelled with different heavy fuel oils. In the first part of study the simulated exhaust gases were irradiated by the electron beam from accelerator. The simultaneous removal of SO2 and NOx were obtained and their removal efficiencies strongly depend on irradiation dose and inlet NOx concentration. For NOx concentrations above 800 ppmv low removal efficiencies were obtained even if applied high doses. In the second part of study the irradiated gases were directed to the seawater scrubber for further purification. The scrubbing process enhances removal efficiencies of both pollutants. The SO2 removal efficiencies above 98.5% were obtained with irradiation dose greater than 5.3 kGy. For inlet NOx concentrations of 1700 ppmv the NOx removal efficiency about 51% was obtained with dose greater than 8.8 kGy. Methods for further increase of NOx removal efficiency are presented in the paper.

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