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Archives :: Environmental, Health & Safety :: Environmental Management

Displaying 141 - 160 of 441 stories.
March 28, 2011
With the new generation of sludgeforce decanters, the energy consumption has been reduced to 0.7 kWh/m3 compared to 1.3–1.5 kWh/m3 required by conventional decanters. This achievement has been made possible by...
March 28, 2011
GenGuard 8000 offers the capability to use less lower-quality water in the cooling process, while avoiding corrosion and fouling problems. This extension of the existing...
March 23, 2011
Water-supply issues are emerging as a national concern with certain sectors coming under increasing scrutiny. This is certainly the case with the ethanol industry. State discharge regulations dictate that plant designs incorporate technological solutions to minimize water use. These designs give operators increased flexibility in terms of enabling the reuse of water streams internally, with the goal to...
March 1, 2011
Improvements in the design of ethylene oxide (EtO) scrubbers made by The Clean Air Group, Croll Reynolds Co. (Parsippany, N.J.; have helped users meet increasingly stringent regulations for EtO emissions, as well as meet tower height restrictions. “Our designs have achieved efficiencies of 99.99% or greater for removal of ethylene oxide, compared to 99–99.9% with alternative...
March 1, 2011
The U.S. EPA (Washington, D.C.; announced today in a statement that it is announcing its intention to extend this year’s reporting deadline — originally March 31 — and plans to have the final uploading tool available this...
March 1, 2011
A desalination system developed by Watervap LLC (Marble Hill, Ga.; separates saltwater of any concentration into highly purified water and dry solid minerals with high efficiency. The company’s Zero Liquid Discharge (ZLD) process represents a low-cost alternative to brine waste disposal in oil and natural gas production, as well as other industries, such as processed meats and mining...
February 1, 2011
Chemical regulatory compliance is growing in complexity as product sourcing and formulations proliferate and organizations expand into new markets on a global scale. Staying current with the requirements of international regulatory initiatives such as the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) and the Registration, Evaluation and Authorization of Chemicals (REACH) adds...
January 1, 2011
 Figure 1. Experts anticipate the new EPA standards regarding SO2 will likely increase capital and engineering costs SOLVAir Solutions Last June, the U.S. Environmental Protection Agency (EPA; Washington, D.C.) strengthened the primary National Ambient Air Quality Standard for sulfur dioxide by establishing a new one-hour standard at a level of 75 parts per billion (ppb). Previous primary...
December 1, 2010
Chemicals in production and laboratory environments alike have three distinct lifecycle phases: the first is procurement and inventory storage; the second is use in a manufacturing process or research program; and the third is post-use, including onsite handling, removal and beneficial reuse, recycle or disposal. A number of considerations including regulations, safety, material utilization efficiency...
November 19, 2010
Siemens Energy (Erlangen, Germany; has successfully completed the first test phase with its CO2 capture process in a pilot facility at the Staudinger power plant operated by E.ON. With its innovative and particularly ecofriendly process the company is setting new benchmarks in CO2 capture in fossil-fueled power plants. Process efficiency, the long-term chemical stability of the scrubbing...
November 1, 2010
Much attention over the past two years has been focused on alternative energy and green chemistry. So it is particularly appropriate that Chemical Engineering’s (CE) 2010 Personal Achievement Award recognizes two individuals with expertise in those fields. Last month, at an award ceremony held at the ChemInnovations Conference and Exhibition in Houston, Tom McGowan, a longtime consultant in biomass...
November 1, 2010
BioAir Solutions Clean the air from wastewater treatment plants without carbon Using its proprietary EcoBase synthetic media, this firm has developed a line of odor control products (photo) that remove both organic and inorganic odorous compounds from the airstreams of industrial wastewater-treatment plant. Units are available for covering airstreams from 100 to 100,000 ft3/min. The EcoBase media provides...
October 28, 2010
In the Chinese province Shandong, a coal-fired power plant will be putting into operation the first industrial-scale plant worldwide for CO2 storage by algae. Within the framework of this project, GEA Westfalia Separator Group (Oelde, Germany; has been awarded a contract to the amount of around €1 million for three high-performance separators (photo below) for harvesting...
October 1, 2010
Because the global chemical process industries (CPI) encompass so many varied industry segments — including the conversion of raw materials and intermediates into chemicals and petrochemicals, fats and oils, paints and coatings, food and beverages, the refining of petroleum, the production of pharmaceuticals and others — there is considerable overlap in terms of the types of equipment...
September 28, 2010
Question: How are hydrocarbons best removed from water? Answer:  First, the type of hydrocarbons present must be identified. Typically, the hydrocarbons in question are in the form of oil or an oil-like substance. In that case, the miscibility of oil will have a major influence on the process used. If the oil is immiscible in water and the droplet size is large, the droplets will probably rise rapidly...
September 8, 2010
U.S. Energy Secretary Steven Chu today announced the selection of 22 projects that will accelerate carbon capture and storage research and development for industrial sources. Funded with more than $575 million from the American Recovery and Reinvestment Act, these R&D projects complement the industrial demonstration projects already being funded through the Recovery Act. Together, these projects...
September 1, 2010
As components of chemical research facilities, fume-hood exhaust systems for laboratory workstations are often taken for granted. Yet the choice of exhaust system, when designing or specifying a laboratory workstation, can have a tremendous impact on the safety of the laboratory building’s occupants as well as those in adjacent buildings. The choice of a fume-hood exhaust system can also affect a...
September 1, 2010
The ever-increasing cost of fuel and relentless push for environmental responsibility are constant factors in the profitability of many chemical process operations, and fluctuations in the prices of natural gas and other fuels can make it hard to predict future energy costs and the impact of such fluctuations on profits. However, the impact of fluctuating fuel costs, and the regulatory uncertainty related...
September 1, 2010
Codexis (Redwood City, Calif.; and CO2 Solution (Quebec City, Canada; have jointly developed a cost-effective method for capturing carbon dioxide from coal-fired power plants. Solvent-based systems for capturing CO2 are relatively well-understood, but they have not been widely deployed because they are energy-intensive and inefficient. Solvent-based approaches involve...
September 1, 2010
On May 5, 2010 Texas Lehigh Cement (Buda, Tex.; was awarded an Environmental Excellence Award by the state environmental agency Texas Commission for Environmental Quality (TCEQ; Austin; The company won for its alternative fuel project because of its outstanding community partnership process. Judges for the award said they could see potential for...
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