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

Masdar on the importance of partnerships & consortiums for CSP

Masdar on the importance of partnerships & consortiums for CSP

Part 1: Finding the right partners for Noor II and III When the Request For Qualifications [RFQ] for Noor II and III came out we started talking to companies we knew well through our experience with Torresol and Shams.  However, this ...


Environmental Management

Materiality Assessment for Dummies

Materiality Assessment for Dummies

When I started to work in the area of sustainability, I had no idea what a materiality assessment was, and what all the acronyms like GRI and SASB meant. It occurred to me I probably wasn’t the only one, and now that materiality ...


Health & Safety

Health and safety at work: companies shift their attitude

Health and safety at work: companies shift their attitude

From reaction to incidents to the development of a corporate culture: the approach to occupational health and safety is changing all over the world; managing health & safety at work is crucial to North Americans to preserve the ...


Monitoring & Testing

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 ...


Soil & Groundwater

Crosshole resistivity survey case study

Crosshole resistivity survey case study

Crosshole surveys are used when two or more boreholes are present for the maximum imaging accuracy for the cross-section between respective boreholes. Crosshole survey to find an aquifer zone This crosshole survey was configured to find ...


Waste & Recycling

Europe’s objective: recycle more waste and send less to landfills

Europe’s objective: recycle more waste and send less to landfills

Is waste a problem or a resource? Waste is both, depending on what we do with it. It is a problem because it can affect people’s health and the environment. For example, landfills are an important source of methane emissions, which ...


Water & Wastewater

City of Hamilton, Ontario Wastewater Treatment Plant Chooses Moyno’s New Urethane Stators to Increase Pump Life

City of Hamilton, Ontario Wastewater Treatment Plant Chooses Moyno’s New Urethane Stators to Increase Pump Life

Springfield, Ohio The City of Hamilton, Ontario Wastewater Treatment Plants (WWTP) collect both sanitary and combined sewage (wastewater). The collection system services not only the City of Hamilton, but also the surrounding areas ...


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