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More Than You Wanted To Know About Activated Sludge

More Than You Wanted to Know About Activated Sludge

  • January 5, 2016

Sludge sounds unattractive, and indeed usually is. Defined as, “a muddy or slushy mass, deposit, or sediment,” it’s the kind of thick, viscous goo you’ll find at the bottom of a pond. The thought of activating it conjurors up images of some science-fiction blob slithering through your town or city.

That’s actually not too far from reality. While it’s probably not in your neighborhood, activated sludge may well be just outside your city limits. The good news is that it’s far from harmful. In fact it’s positively beneficial as it forms an essential component of many large-scale wastewater treatment systems.

Monitor Or Meter? Don’t Confuse Them

Monitor or Meter? Don’t Confuse Them

  • December 17, 2015

Measuring fluid flow is difficult. To start with, there’s the question of whether to measure volume or mass. Then within each category there are multiple technologies to chose from. Cost rises with accuracy, and some high-precision methods lack robustness for industrial application, especially in large, distributed plant environments. That’s why, before committing to a flow measurement method, it’s important to step back and consider how the data will be used.

New Opportunities For NGVs From Tighter Ozone Standard

New Opportunities for NGVs from Tighter Ozone Standard

  • November 19, 2015

Ground-level ozone is a growing problem in many cities, especially on the US west coast. As noted by the EPA, it causes respiratory problems like throat irritation, tightness in the chest, and increased occurrence of asthma attacks. That’s why, on October 1st2015, the National Ambient Air Quality Standard was lowered from 75 to 70 ppbn. This has implications for the fuel burnt in automobile and truck engines, and supports increased use of compressed natural gas (CNG.) CNG for vehicles is delivered through specially-designed filling stations, which are good applications for ChemTec flow monitors and excess flow valves.

Process Cooling: Keeping Manufacturing Competitive

Process Cooling: Keeping Manufacturing Competitive

  • November 10, 2015

Metal casting and plastic molding are near-net shape manufacturing processes. Liquid material fills a die, solidifies and is ejected. A few quick finishing operations later and a precision part is ready for shipping or assembly. The key to making money though is doing this quickly. Molding and casting machines are expensive, as are the dies, so throughput and utilization must be maximized. That means chilling the filled die as fast as possible, and that takes sophisticated cooling systems.

Customized EFV For Cell Phone Towers

Customized EFV for Cell Phone Towers

  • October 27, 2015

When hurricanes, wildfires or simple electrical system overloads cut the power to cell phone towers, diesel backup generators typically are the only way to keep the calls coming. But diesel requires maintenance and man-hours. An alternative, hydrogen, requires much less maintenance and man-hours to maintain.

CNG Station Map

CNG Station Map

  • October 15, 2015

Public transportation across the country has been using CNG for decades, with about 12-15% of public transit buses in the U.S. currently running on natural gas (either CNG or LNG – liquefied natural gas). That number is growing, with nearly one in five buses on order today slated to run on natural gas. States with the highest consumption of natural gas for transportation are California, New York, Texas, Georgia, Massachusetts and Washington, D.C.

Options For Detecting Gas Leaks

Options for Detecting Gas Leaks

  • October 6, 2015

Gas escaping from pipework needs to be detected quickly. Depending on the type of gas, the consequences range from merely wasteful to fatal. Leaking gas can be environmentally damaging, it can create an explosion risk, and it can even kill thousands of people, as happened in the Bhopal chemical plant disaster.

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