For simple, low-cost solutions for wastewater treatment, Submerged Attached Growth Reactors downstream of primary lagoons provide a practical means to comply with nutrient rules, even in cold climates.
- By Mark O. Liner, P.E., Merle Kroeker, P.E.
Brazilian-based Grön Environmental uses S-200 to successfully complete a Rio de Janeiro gas station cleanup to the applicable BTEX standards.
- By James Lynn, Thomas Nail, Fabio Leandor
A retractable, structurally supported geomembrane cover system provides odor control and easy maintenance access to wastewater treatment aeration basins at the Vallejo Sanitation & Flood Control District.
Waste separation, community buy-in, and high solids anaerobic digestion are key ingredients in turning table scraps and yard debris into a renewable resource recipe.
The good news from Environmental Protection's annual Salary Survey is that reported gross salaries appear to have increased over those reported in the 2008 survey. The bad news is that getting or keeping an industry job proved more difficult for many who responded.
- By L.K. Williams, EPonline
Going fluorescent is a no-brainer, much like using lamp crushers to recycle and safely dispose of the small amount of mercury in each bulb.
ANDalyze Inc. is using DNA sensors that react with heavy metal ions to help water professionals detect contaminants and safeguard drinking water.
Attendees at the 2010 National Biodiesel Conference got an earful of good news for the industry.
- By L.K. Williams, EPonline
Montezuma Valley Irrigation Co. saved substantial amounts of water lost through evaporation and seepage by installing a closed poly pipe distribution system with more precise flow meters, solar power, and automation.
- By Gerald W. Knudsen, P.E., AgriTech Consulting
Emissions tracking software keeps companies one step ahead of impending greenhouse gas regulation.
EPA has added chemical, petroleum and coal, and electric power facilities to its list of industries that are responsible for assuring their financial ability to take care of cleanups.
- By Sloane Anders Wildman, Perkins Coie LLP
Professionally trained odor panelists can mitigate nuisance odors better because they are not hampered by detection limits.
- By Roy Desrochers, GEI Consultants, Inc.
Inconsistent federal, state and local laws are undercutting groundwater protection efforts in the United States.
- By Michael E. Covert, P.G.
EPA rule co-author answers some questions AC and refrigeration companies may have before the impending effective date ─ Jan. 1.
- By Staci Gatica, U.S. EPA
Two case studies illustrate how companies found in violation of environmental law can offset some of the costs associated with financial penalties.
Energy-saving fluorescent lamps pose mercury vapor risks when broken and require special packaging for their transport to recycling facilities.
- By Brad Buscher, chair and CEO of VaporLok Products LLC
Sulphide-precipitation and ion-exchange technologies can help companies meet the environmental, economic and social drivers of sustainability.
With the help of Autodesk Topobase software, an Australian water organization integrates its geographic information system and improves workflow.
Rome, Italy, puts a 1,000-foot sewer bypass in a busy quarter using trenchless technology and centrifugally cast, fiberglass-reinforced, polymer mortar pipe.
The absence of a nationwide stormwater management standard, coupled with the different rainfall patterns, pollutants of concern, environmental resources and economic drivers from state to state, has resulted in a wide disparity among stormwater management programs.