Environmental Industry Articles

Air & Climate

SO2 NAAQS Implementation: The Great American Update

SO2 NAAQS Implementation: The Great American Update

Since the 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) became effective in August 2010, ALL4 has been tracking it every step of the way.  Its implementation has proven to be chaotic at times and quiet at ...


Energy & Renewables

Oil and gas incumbents: the upside of cleantech collaboration

Oil and gas incumbents: the upside of cleantech collaboration

The global transition to a low-carbon economy is now inevitable. Yes, there will be winners and losers. To remain dominant, energy incumbents (like Enbridge and Royal Dutch Shell) must find scalable, low-carbon energy assets to develop. ...


Environmental Management

Case Studies in EHS Management

Case Studies in EHS Management

Achieving real, tangible gains and substantial ROI through software is not only possible, it happens every day for small, medium and large companies with the right web-based EHS software solution. This whitepaper shows how five leading ...


Health & Safety

Heat Protection Gloves: Which Professions Use Them?

Heat Protection Gloves: Which Professions Use Them?

In a wide variety of industries, companies are required to provide the proper safety equipment for their employees. Health and safety has become a top priority for businesses in recent years, providing protection for both workers and the ...


Monitoring & Testing

Ultrasonic Testing For Non Destructive Testing

Ultrasonic Testing For Non Destructive Testing

Ultrasonic Testing or UT as its known has programs in a wide range of sectors, from aerospace, automobile, to substance, oil, large storage space, and power creation and overseas. UT is aspect of a selection of techniques known as NDT (Non ...


Soil & Groundwater

The Future For Fracking

The Future For Fracking

Summary Fracking is an essential technology to meet growing global demand for oil and gas. Fracking has become the "F" word, because it is very water-intensive, and has potential negative impacts on the environment. The future of ...


Waste & Recycling

California Refuse Recycling Council: Advocating for the Next Generation of Solid Waste Legislation

California Refuse Recycling Council:  Advocating for the Next Generation of  Solid Waste Legislation

Created out of a need for waste haulers to respond to government decisions, the CRRC has grown to a pivotal organization in California that has a hand in influencing the waste industry’s legislation issues. In the 1950s when several ...


Water & Wastewater

Using respirometry for energy optimization in a nitrifying biological wastewater treatment system

Using respirometry for energy optimization in a nitrifying  biological wastewater treatment system

ABSTRACT Many wastewater treatment plants use more than 50% of their total energy budget in the aeration basin and, when nutrient removal is included in the activated sludge process, it is very common that the majority of oxygen uptake ...


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