Airborne aldehydes and ketones are collected by passing air through a cartridge containing 2,4-dinitrophenylhydrazine (DNPH). Carbonyl compounds react with the DNPH to form hydrazones, which are immobilized on the cartridge. These compounds can be easily eluted from the cartridge with acetonitrile and analyzed by HPLC with UV detection. Traditionally, this analysis including the workup contains a series of manual steps, which can become time-consuming and could incur experimental error.
Automating the extraction...
As is the case for many industrial manufacturing processes, emissions are best destroyed through the use of thermal and catalytic oxidation technologies. Volatile Organic Compounds (VOCs) and Hazardous Air Pollutants (HAPs) are destroyed through the use of high temperature combustion with direct heat recovery. The harmful air pollutants are converted to heat, water vapor and carbon dioxide, creating a destruction efficiency greater than 99%.
Chemical and Pharmaceutical Customized Environmental Solutions. Applying the right emission control equipment for the chemical and pharmaceutical industry requires a thorough knowledge and understanding of the process and system requirements, combined with the ability to provide custom solutions. Dürr MEGTEC offers a wide range of environmental solutions that include solvent recovery and distillation systems, thermal oxidizers, scrubbers, electrostatic precipitators, and fabric filters.
Many industrial and pharmaceutical processes generate wastewater with volatile contaminants that increase the COD and BOD to a point where discharging to municipal wastewater is very costly or not an option. These contaminants can be removed from the water by distillation, substantially lowering the disposal cost, and, in many cases, the removed components can be further purified and reused in the process.
MEGTEC offers the following solutions to remove the volatile contaminants and make wastewater suitable for...
MEGTEC’s experience and application know-how are at your command for tough drying and web handling applications such as slow-drying coatings and materials or thin film coating and laminating. Dryers can be equipped with a wide variety of nozzle configurations ranging from simple slot nozzles to sophisticated Coanda-style air bars and patented air foil systems. A full range of heat sources are available including steam, direct and indirect gas-fired, thermal oil, electric, hot water and IR. In addition, the air...
From cutting-edge MABR wastewater treatment to containerized desalination, Fluence delivers cost-effective and sustainable solutions for commercial customers worldwide. Fluence has more than 30 years of experience in the design, construction, and operation of water and wastewater treatment plants for commercial clients, including resorts, golf courses, commercial buildings, and campuses.
From a regulatory standpoint, the industry is divided into a number of categories: commercial/industrial solid waste incinerators (CISWI), municipal waste combustors (MWC), hospital/medical/infectious waste incinerators (HMIWI), hazardous waste combustors (HWC), sewage sludge incinerators (SSI), and other solid waste incinerators (OSWI). While each sub-category is subject to differing environmental regulations, all can benefit from evaluating their air pollution control requirements.
Oxidation Reduction Potential or Redox is the activity or strength of oxidizers and reducers in relation to their concentration. Oxidizers accept electrons, reducers lose electrons. Examples of oxidizers are: chlorine, hydrogen peroxide, bromine, ozone, and chlorine dioxide. Examples of reducers are sodium sulfite, sodium bisulfate and hydrogen sulfide. Like acidity and alkalinity, the increase of one is at the expense of the other.
Anyone and everyone who is responsible for operating and maintaining a swimming pool or spa has to test, monitor, and control complex, interdependent chemical factors that affect the quality of water bathers are immersed in. Additionally, aquatic facilities operators must be familiar with all laws, regulations, and guidelines governing what these parameters should be.
Evaporative gas cooling and conditioning systems use specially engineered atomizing nozzles that introduce a controlled amount of finely atomized water into the hot gas stream to reduce and/or maintain gas temperature. The water evaporates completely while absorbing heat from the gases, which results in free-flowing dust, zero liquid discharge, and minimal or no problems with scale buildup on the walls.
We can treat the air streams from waste management plants, MBT (Mechanical Biological Treatment) reception and composting areas, Waste Water Treatment Plants (WWTP), Refuse Derived Fuel (RDF) Plants, gasification of waste, syngas, torrefaction, gas engines and biogas upgrading.
In waste management plants and WWTP, we remove the odors that may be causing a nuisance to neighbors, with bioreactors using Biomass to degrade odorous components and where odors are particularly intractable or VOC emissions higher,...
Fluence has decades of experience delivering sustainable water and wastewater solutions to communities large and small. Fluence has more than 30 years of experience in the design, construction, and operation of water and wastewater treatment plants for municipal clients, government entities, communities, emergency relief, and private use.
Anguil`s Food and Bakery industry experience provides reliable solutions for your emission control challenges. We have worked on a wide range of applications: achieving a high destruction level of ethanol from bakery ovens, chaff and particulate from coffee roasting, efficiently destroying grease from frying and rendering operations, handling smoke house emissions, and maintaining required opacity and odor levels from confectionery and gum manufacturing.
Grinding-swarf from the metal processing industry may contain metal alloys, stainless-steel and high-alloyed steel, all of which are ideal input-materials VacuDry unit. The absence of oxygen in the VacuDry process prevents any changes in the chemical structure of the oil, emulsions or metals during the treatment. The output material can later be sold at high prices.
Measuring water quantity and quality in surface water (open channels, rivers, reservoirs, lakes, and estuaries) is one of the foundations of hydrological monitoring and has been a focus of OTT Hydromet since its first water current meters were designed in 1875.
A Single Solution To Manage Composite Odors: Many resins used in the composite industry emit styrene vapors which are considered hazardous in high concentrations and whose odor is an unpleasant nuisance. This gas is categorized as a volatile organic compound (VOC) and listed by the United States Environmental Protection Agency (US EPA) as a Hazardous Air Pollutant (HAP). Styrene is considered highly reactive in the atmosphere and may contribute to smog formation and the production of secondary air pollutants.