Continuous degradation of BTEX in landfill gas by the UV-Fenton reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1452-1459 ◽  
Author(s):  
Luchun Yan ◽  
Jiemin Liu ◽  
Zhenhua Feng ◽  
Peng Zhao
Keyword(s):  
Fenton Reaction ◽  
Bubble Column ◽  
Landfill Gas ◽  
Bubble Column Reactor ◽  
Gas Treatment ◽  
Waste Gas ◽  
Mass Transfer Efficiency ◽  
Waste Gas Treatment ◽  
P Application ◽  
Liquid Mass Transfer

Application of the UV-Fenton reaction in waste gas treatment with enhanced gas–liquid mass transfer efficiency using a bubble column reactor.

Removal of trichloroethylene from waste gases via the peroxone process

2003 ◽  
Vol 48 (3) ◽  
pp. 65-72 ◽  
Author(s):  
K. Van Craeynest ◽  
J. Dewulf ◽  
S. Vandeburie ◽  
H. Van Langenhove
Keyword(s):  
Hydrogen Peroxide ◽  
Bubble Column ◽  
Operating Conditions ◽  
Chlorinated Organic Compounds ◽  
Gas Treatment ◽  
Waste Gas ◽  
Treatment Techniques ◽  
Carbon Adsorption ◽  
Waste Gas Treatment ◽  
Chlorinated Organic

In dealing with chlorinated organic compounds in waste gases, traditional treatment techniques show some severe shortcomings. Thermal oxidation may lead to the formation of dioxins, active carbon adsorption does not degrade the pollutants and biotechnological treatment is difficult since microorganisms do not always possess efficient degradation pathways for these compounds. These drawbacks explain the growing interest of the waste gas treatment sector for Advanced Oxidation Processes (AOPs) which were initially developed as water treatment techniques. AOPs generate highly reactive hydroxyl radicals that efficiently oxidise organic pollutants. In the peroxone process, this is done by a combination of ozone and hydrogen peroxide. In this work, the peroxone process is applied in an oxidative scrubber for the removal of trichloroethylene (TCE). Rapid oxidation of absorbed TCE in the liquid phase enhances TCE absorption. Practically, a gas stream contaminated with TCE is mixed with an ozone loaded gas stream. The mixture is led through a bubble column that is fed with a buffered hydrogen peroxide solution. The effect of different process parameters (flow rates, buffer concentration, pH, hydrogen peroxide/ozone dosage ratio, TCE dosage) on TCE removal was investigated. Depending on the operating conditions, removal efficiencies up to 98% could be attained.

The Research on Preparation Methods of Sludge-Based Adsorbent and its Application in Water Treatment

2013 ◽  
Vol 798-799 ◽  
pp. 1166-1169 ◽  
Author(s):  
Kun Huang ◽  
Bing Xin Du
Keyword(s):  
Sustainable Development ◽  
Sewage Sludge ◽  
Preparation Method ◽  
Research Direction ◽  
Excess Sludge ◽  
Preparation Methods ◽  
Gas Treatment ◽  
Waste Gas ◽  
Waste Gas Treatment ◽  
Process Of Urbanization

The accelerated process of urbanization and industrialization leads to the increase of sewage sludge production. The reuse of excess sludge which meets the idea of sustainable development is aimed to develop it into resources. Preparation of sludge-based adsorbents with various functions provides a new way for sludge utilization as a resource in China. The preparation method of sludge-based adsorbents and its application in wastewater and waste gas treatment are introduced. Suggestions about the research direction of sludge-based adsorbents in the future are point out.

scholarly journals Emission Reduction and Energy Performance Improvement with Different Regional Treatment Intensity in China

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 237 ◽  
Author(s):  
Xiangyu Teng ◽  
Danting Lu ◽  
Yung-ho Chiu
Keyword(s):  
Emission Reduction ◽  
Energy Performance ◽  
Industrial Sector ◽  
Gas Treatment ◽  
Waste Gas ◽  
Industrial Sectors ◽  
Waste Gas Treatment ◽  
Reduce Emissions ◽  
Emission Reduction Target ◽  
Regional Treatment

China’s industrial sector, which has a significant position in the world, is the main sector of China’s energy consumption and waste gas emission. China’s government has promulgated a Guiding Opinion, setting key regions to establish an emission reduction target of air pollutants during the 12th five year plan (2011–2015). Thus, there is a different regional treatment of industrial waste gas in China. This study considers the waste gas treatment expenditure as a new input and employs the non-radial directional distance function in the framework of the meta-frontier model to investigate the energy and emission reduction performance of China’s industrial sectors. The study is aimed at finding a significant and expanded technical gap between key and non-key regions in the energy and emission reduction efficiencies. The empirical result presents an effective method to improve the performance by increasing the emission treatment expenditure to reduce emissions.

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