scholarly journals Pilot-Scale Testing of Non-Activated Biochar for Swine Manure Treatment and Mitigation of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (VOCs), and Greenhouse Gas Emissions

2017 ◽  
Vol 9 (6) ◽  
pp. 929 ◽  
Author(s):  
Devin Maurer ◽  
Jacek Koziel ◽  
Kajetan Kalus ◽  
Daniel Andersen ◽  
Sebastian Opalinski
Keyword(s):  
Hydrogen Sulfide ◽  
Volatile Organic Compounds ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Organic Compounds ◽  
Swine Manure ◽  
Pilot Scale ◽  
Activated Biochar ◽  
Manure Treatment ◽  
Volatile Organic

scholarly journals Selection of sustainable technologies for reducing emission of volatile organic compounds and greenhouse gases

2019 ◽  
Vol 9 ◽  
pp. 251601921985260 ◽  
Author(s):  
Zarook Shareefdeen
Keyword(s):  
Volatile Organic Compounds ◽  
Greenhouse Gases ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Organic Compounds ◽  
Appropriate Technology ◽  
Industrial Emissions ◽  
Gas Emissions ◽  
Volatile Organic ◽  
Selection Of

Selection of sustainable and environmental friendly technologies is very important in meeting strict environmental regulations on industrial emissions of volatile organic compounds and greenhouse gases. Many of the industrial volatile organic compounds are toxic and carcinogenic, and they are regulated under Clean Air Act for hazardous air pollutants. Similarly, global environmental agreements such as European Union’s 2015 Paris Agreement and Kyoto Protocol restrict carbon emission, which is responsible for global warming, sea-level rise, flooding, and ecological imbalance. It is essential that industries choose suitable technologies that reduce not only toxic volatile organic compounds in the air but also greenhouse gas emissions. In this communication, biotechnological methods are discussed and compared with conventional processes, which are used for control of volatile organic compounds. The readers may find this article useful in the selection of an appropriate technology for their application while minimizing the greenhouse gas emissions.

scholarly journals A comparison of removal performance of volatile organic and sulfurous compounds between odour abatement systems

2018 ◽  
Vol 77 (11) ◽  
pp. 2657-2667 ◽  
Author(s):  
A. Shammay ◽  
I. Evanson ◽  
R. M. Stuetz
Keyword(s):  
Hydrogen Sulfide ◽  
Activated Carbon ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Voc Removal ◽  
Biotrickling Filters ◽  
Volatile Organic ◽  
Sulfurous Compounds ◽  
Sulfide Species ◽  
Sewer Networks

Abstract Three types of odour abatement systems in sewer networks in Australia were studied for 18 months to determine the removals of different compounds. Six volatile sulfurous compounds and seven volatile organic compounds (VOCs) were further investigated. All types of odour abatement systems exhibited good removal of hydrogen sulfide with the biotrickling filters (BTFs) showing the highest consistent removal. Biofilters outperformed BTFs and activated carbon (AC) filters in the removal of dimethyl mono-, di- and tri-sulfide species at the low inlet concentrations typically found. AC filters exhibited little VOC removal with no compound consistently identified as having a removal greater than 0%. Biofilters outperformed BTFs in VOC removal, yet both had high removal variability.

Online sensing of volatile organic compounds in groundwater using mid-infrared fibre optic evanescent wave spectroscopy: a pilot scale test

2003 ◽  
Vol 47 (2) ◽  
pp. 121-126 ◽  
Author(s):  
H. Steiner ◽  
K. Staubmann ◽  
R. Allabashi ◽  
N. Fleischmann ◽  
A. Katzir ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Pilot Plant ◽  
Pilot Scale ◽  
In Situ Monitoring ◽  
Fibre Optic ◽  
Sensor Head ◽  
Sensing System ◽  
Volatile Organic

A prototype sensing system for in-situ monitoring of volatile organic compounds in contaminated groundwater was tested at a pilot scale plant. The sensor consists of a commercially available Fourier transform infrared spectrometer, connected to a 6 m long infrared transparent silver halide fibre optic cable. A 10 cm long core-only section at the centre of the fibre is mounted on a sensor head and coated with a hydrophobic polymer layer, while the remaining fibre is protected by Teflon tubing and thus not in contact with the surrounding media. The sensor head was immersed into the monitoring wells of the pilot plant testing the sensor system under circumstances close to field conditions and typical for in-situ measurements. The pilot plant consists of a 1 m3 cubic tank filled with gravel. A pump is used to circulate water horizontally through the tank, simulating a natural aquifer. The evolution of the concentration of analytes injected into the system is monitored with time using the developed prototype sensing system. The results are validated by corresponding sampling and analysis with headspace gas chromatography.

scholarly journals Synthesis of polyurethanes with low volatile organic compounds content for upholstery and automotive articles

2020 ◽  
Author(s):  
Anna Bacardit ◽  
Silvia Sorolla ◽  
Concepcio Casas ◽  
Lluis Olle ◽  
Mireia Conde
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
High Performance ◽  
Color Change ◽  
Research Work ◽  
Pilot Scale ◽  
Long Term Effects ◽  
Minimal Impact ◽  
Volatile Organic ◽  
Pilot Scale Reactor

The manufacture of upholstery and automotive articles is linked to the release of Volatile Organic Compounds (hereinafter VOCs) during their manufacture, which have short and long-term effects on the health of users and the environment. In the leather sector, around 40 kg of VOCs are generated per 1000 kg of raw skin. This research work has focused on the synthesis of new and more sustainable urethane-based polymers that, in turn, allow the quality requirements of the finish to be met, which vary depending on the leather article manufactured. The main objective of the study is to minimize the content of VOCs in the different aliphatic polyurethanes synthesized in a pilot-scale reactor, making small modifications to the synthesis formulations. The synthesis route developed is based on the preparation of polymers of ionomeric polyurethanes and their subsequent dispersion in water. In the synthesis processes developed, the content of coalescing solvents and neutralizing agents, which directly contribute to the concentration of VOCs of the urethane polymers, is eliminated and / or minimized as much as possible. The new urethane-based polymers obtained have been analyzed according to the parameters of pH, viscosity, density and percentage of solids in the resin. Likewise, organoleptic tests (color, transparency, hardness, touch and tacking) and physical tests (tensile strength, water absorption, hardness and color change at 100°C for 24 hours) have been carried out on the film corresponding to each synthesized polyurethane resin. These products will be introduced in finishing formulations designed to obtain high-performance upholstery and automotive leather with minimal impact in terms of VOC content at the pilot level. Tests of fastness and physical resistance have been carried out to evaluate the performance of these leathers.

Air purification system

2020 ◽  
pp. 118-122
Keyword(s):  
Hydrogen Sulfide ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
The Other ◽  
Air Purification ◽  
Purification System ◽  
Volatile Organic ◽  
High Concentrations

An air purification system based on the use of specialized catalytic filling, designed to reduce high concentrations of hydrogen sulfide and volatile organic compounds is represented. The system is a 20 or 40 foot heated sea container in which two catalytic charge units are located: one is a working and the other is a reserve. Each block contains one cleaning step with a specialized ferrous charge.

AIR PRE-TREATMENT SYSTEM

2020 ◽  
pp. 57-63
Author(s):  
S. A. Mikaeva ◽  
A. S. Mikaeva ◽  
L. A. Vasilyeva ◽  
O. E. Zheleznikova
Keyword(s):  
Hydrogen Sulfide ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Ventilation System ◽  
Electrical Equipment ◽  
The Other ◽  
Safety Requirements ◽  
Volatile Organic ◽  
Pre Treatment ◽  
High Concentrations

The article describes the air pretreatment system designed to reduce high concentrations of hydrogen sulfide and volatile organic compounds through the use of specialized catalytic backfill. The system is a 20- or 40-foot insulated sea container in which two catalytic backfill units are located. One worker the other reserve. Each unit contains one cleaning step with a specialized ferruginous backfill. The installation does not have its own fan and is connected to the existing ventilation system be installed in front of the installation EVENTLET. The operation of the system is subject to all safety requirements for the operation of electrical equipment, which is powered by a voltage of 380 V and a frequency of 50/60 Hz. The technical characteristics and Assembly of the system are given.

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