An automatic system for control of the air pollution in the industrialised area of Huelva has being developed by CIEMAT. This system is called "Sistema informatico para control y prevencion de la contaminacion atmosferica en Huelva" (SICAH). SICAH is a Visual C++ programme that runs under Windows 95/NT. SICAH includes a Geographic Information System (GIS) and runs Fortran numerical scientific codes including a mesoscale Lagrangian puff dispersion model called MELPUFF. SICAH has been designed to receive and automatically process the information on air quality, emission and meteorological networks in real-time and provide predictions of concentrations of SO2, PM10, SH2 and CO.
Keywords: air pollution modelling, air quality management, decision support system
Background
For decades, Advanced Air Technologies, Inc. has been the leader in air scrubber technology for abatement of Ethylene Oxide (EtO) emissions. In fact, AAT, Inc. was founded in 1987 on a unique dry scrubbing, chemi-sorption process for EtO. The result is a series of fixed bed “Safe-Cell II” dry scrubbers, consisting of the DR-490, DR-50, and DR-MAC-150. The DR-490 is the staple for commercial scale aeration exhaust, while the DR-50 is used on exhaust from small hospital sterilizers. The...
Enluse B.V. is supplier of Air Sentry® breathers that increase efficiency, prolong fluid life, reduce maintenance costs and downtime.
In a series of 4 we’ll discuss successively:
· D-Series: Disposable stationary applications
· X-Series: High Humidity/High Dust
· M-Series: Heavy Duty Applications
· Z-Series: Limited space applications
D-Series: Stationary applications
D-Series breathers feature models in a variety of sizes to satisfy the requirements of most stationary...
Ammonia nitrogen (NH4-N) contaminated wastewater has posed a great threat to the safety of water resources. In this study, air stripping was employed to remove and recover NH4-N from acetylene purification wastewater (APW) in a polyvinylchloride manufacturing plant. Investigated parameters were initial APW pH, air flow rate, APW temperature and stripping time. The NH4-N removal by air stripping has been modeled and the overall volumetric mass transfer coefficient (KLa) of the stripping process has been calculated...
Numerical studies regarding the influence of entrapped air on the hydraulic performance of gullies are nonexistent. This is due to the lack of a model that simulates the air-entrainment phenomena and consequently the entrapped air. In this work, we used experimental data to validate an air-entrainment model that uses a Volume-of-Fluid based method to detect the interface and the Shear-stress transport k-ω turbulence model. The air is detected in a sub-grid scale, generated by a source term and transported using a...
What is APCr?
Thermal waste management using Energy Recovery Facilities (ERFs) is now a well-managed and mature technology that is subject to environmental monitoring by a range of competent international bodies. These ERFs have been established as a means of diverting waste away from landfill disposal and for valorising the material and energy content of the waste. Counter to historic operation of incinerators, modern ERF technology is now typically only applied to residual waste, i.e. municipal waste following...
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