Fracking, a fossil-fuel extraction technique in which drilling companies inject high-pressure liquids (frackwater) into the ground to break open rock formations containing oil or gas, is known to have detrimental effects on the environment. Frackwater can contain a myriad of chemicals including benzene and xylene as well as potentially dangerous … Read More
I learned recently that approximately 40% of the world’s food is cultivated in irrigated areas and that 10% of the world’s population consumes food irrigated with wastewater.
This realization made me wonder: how safe is it to irrigate crops with wastewater? And, after a bit of research, it appears that there … Read More
Since 1993, the equipment rental industry has more than doubled in size—from $11.2 billion to $22 billion. Just 10 years before that, equipment rental was a $1.1-billion industry.
Industry experts say that a combination of factors is responsible for this sizable boost, most notably the construction booms of the late 1980s … Read More
Among researchers who study the potential effects of rising sea levels, and among the city planners in coastal areas who are actively trying to come up with viable plans for their communities, the idea of retreat is catching on. The alternative is to build physical defenses—costly sea walls, levees, or … Read More
For the past several years, the solar industry has been on a tear. The aggressive tax incentive is set to step down from 30% to 10% in 2016 before it goes away completely at the end of 2017. Some solar CEOs are lobbying for another extension of the Solar Investment Tax … Read More
Nuclear generation makes up about 20% of the United States’ energy supply. While nuclear plants are in-line with current carbon-free environmental goals, positive attributes, such as grid stability and consistent base load are often overlooked. As a result, today, they are struggling to compete.
In May, at a US Department of … Read More
It’s estimated that 70% of freshwater withdrawals worldwide are for agricultural use. Although some see recycled wastewater as a potential solution component to global water scarcity issues, the costs of treating wastewater—to remove contaminants, reduce crop-damaging salts, and to meet health standards for reuse—often present financial limitations.
A new economic model … Read More
In May 2016, the governor of Colorado signed a bill legalizing rain barrels. Before then, the capture and use of rainwater, even on so small a scale, was illegal in Colorado. It wasn’t the first time such a bill had been proposed—a similar effort failed last year—and the decision, hailed … Read More
Last Sunday’s New York Times article, “It’s No Accident: Advocates Want to Speak of Car ‘Crashes’ Instead,” hit the nail on the head by suggesting that people, not some intergalactic demonic force, are responsible for all but 6% of the 38,000 roadway fatalities in 2015. What’s behind the 6% not … Read More
The Space Fence, a sophisticated surveillance system designed to improve the way the US Air Force identifies and tracks objects in space, is under construction and scheduled for operation by 2018. The radar installation addresses the growing problem of space debris, an issue that became reality in 2009 when a … Read More
Women and water share a powerful and intimate bond. In many parts of the world women bear the primary responsibility for water collection, they nourish their families with it, and often play a vital role in water economies. Water is fundamental for health, safety, industry, and food security. In an … Read More
As many new presidential administrations do, Donald Trump’s is promising to take action on improving the country’s infrastructure. How fast it can move ahead might depend on which environmental and other regulations stay and which ones go.
This recent article from the Wall Street Journal titled “Speed Limits Await Infrastructure Spree” looks … Read More
For our March/April 2013 issue’s Editor’s Comments I wrote a piece on leadership that received not only the highest number of responses of any in all the magazine’s history, but was also picked up by other publications for reprinting. I regard why this was so as one of those mysteries … Read More
Global sea levels are rising at an astonishing rate—a pace that increases with each climbing degree of warmth that our planet experiences. The inevitability of saltwater influx means that in the future, humans will have to rethink, rebuild, and relocate infrastructural systems, potable water sources, and in some cases entire … Read More
I, along with many of you, was saddened to learn of Dick Townley’s passing this past weekend. I know that he was a Californian and an expert at many things, a list that included laughing a lot, at the same time taking his longstanding role in waste management matters seriously. I … Read More
This is a question many have asked, particularly over the past decade as the concern for energy resources again reared its ugly head. Given the opposition to WTE by those claiming to speak on behalf of the “environmental community,” those favoring the development of alternative practices to accompany recycling efforts … Read More
The intersection of water and energy is an interface that in the water industry we often explore in terms of operational efficiencies, conservation policies, and cost perspectives. But on a micro scale, the water-energy nexus is encapsulated within a single molecule. And the research surrounding the separation of this molecule’s … Read More
When it’s time to replace a water heater—or put one into a newly constructed building—facility managers can choose between the traditional storage tank heater or a tankless water heater.
Tankless water heaters, also known as demand-type water heaters, can provide endless hot water only as it is needed and used, points … Read More
During the recent drought, California farmers pumped so much groundwater that the water table dropped by 10 to 20 feet in some places, and up to 100 feet in others. Aquifers were depleted. Wells ran dry. And then, as if by some miracle, it rained.
This winter, storms have delivered rainfall … Read More
For the most part, antibiotics play a positive role in the modern world. They help combat infection and keep us healthy. However, antibiotics often find their way into water streams and wastewater treatment plants while still biologically active. And that’s a problem for a variety of reasons. … Read More
What exactly does “navigable” mean? Vague definitions of which bodies of water are protected by federal agencies have confounded policy makers for decades. In 1972, the Clean Water Act gave federal authorities the power to regulate pollution in “navigable waters.” The job of determining which of those waters the policy … Read More
As gloppy, green cyanobacteria overtake southern Florida’s waterways, a debate has erupted over whom is to blame for the state’s algae bloom emergency.
It’s a perfect storm, really, and the sort of environmental nightmare that happens precisely when water management issues and inadequate infrastructure funding collide. … Read More
It’s a conundrum. Elon Musk’s plan for his electric-vehicle company, Tesla Motors, to acquire solar developer SolarCity is a move many find puzzling—mostly because both companies are losing money. The Wall Street Journal reports that Tesla lost nearly $900 million in 2015, while SolarCity lost almost $769 million. Combining two … Read More
A GIS map of America’s rivers captivated me this week, offering the sort of arresting omniscience that puts entire systems in perspective. I gazed at the map’s colorful capillaries with wonder. To visualize a nation in terms of its interconnected waterways is illuminating.
Photo courtesy of Imgur … Read More
For the first time ever, sales of bottled water exceeded soda in 2016, with a total of 49.4 billion bottles sold in the US. According to the New York Times, that means that Americans drank almost 12 billion gallons of bottled water last year, or more than 36 gallons per … Read More
I do, so a question I’ve asked over the years is, “Why don’t municipalities make accurate accounting a contractual requirement?” To date, I’ve yet to receive an answer, which makes me wonder whether the public really give a darn. Perhaps the real question is whether I’m out of my proper … Read More
I was drawn to NASA’s wonderful Earth’s city lights mosaic more than two decades ago by the sheer beauty of the familiar, yet haunting, pattern showing the purposeful hand of human effort. As my computer’s wallpaper it has become a talisman of sorts, in much the same way I’ve come … Read More
It seems like a passage from Latin American fiction—a surreal scenario in which citizens awaken to find their country dry, and a mustached general rationing their water. But for citizens of La Paz, Bolivia, this is not a Gabriel Garcia Marquez novel—it is their reality.
For eleven years, scientists like Edson … Read More
Last week’s 2016 Southern California Conversion Technology Conference (SCCTC) put on by the Los Angeles County Department of Public Works (LACDPW) focused on the need for the California Department of Resources Recycling and Recovery (CalRecycle) to rescind its exclusion from full diversion credit of thermochemical CTs for treating MSW feedstocks. … Read More
More than a decade ago, federal and state officials and some of California’s largest water agencies dismissed concerns that the spillway at Oroville Dam could erode during heavy winter rains. But on February 12, more than 185,000 people were evacuated from areas downstream of the dam, because of concern over its structural … Read More
Westinghouse Electric Co. LLC, the US nuclear power plant developer owned by Japanese electronics giant, Toshiba Corporation, consulted bankruptcy attorneys last week. While this action may not seem headline-worthy to some, it is certain to have widespread implications for the nuclear power industry—and it may even be indicative of future … Read More
At the Moorpark Unified School District in Moorpark, CA, Gary Ventsam, director of maintenance and facilities, was weighing energy savings options. The choice came down to installing solar or doing a lighting retrofit with LEDs. At one point, there had been some concerns over LED brightness, clarity, and different colors, … Read More
After nearly a decade since its introduction into the environmental pantheon, I’m still confused by what people have in mind when they refer to sustainability, wondering for instance whether they are talking about personal stewardship or the salvation of the Earth through the extraordinary efforts of some self-anointed group. While … Read More
In March 1996 outside of Cincinnati, OH, the worst landslide in solid waste industry history occurred, resulting in a mass movement of more than 1 million cubic yards, a distance greater than 300 yards. Similarly, disastrous slides have occurred around the world: Hiriya, Israel, in the winter of 1997; the … Read More
Energy Storage Solutions’ parent, Forester Media, has had a foot in the renewable energy door from day one in 1991 with its initial publication, MSW (Municipal Solid Waste) Management’s involvement with waste-to-energy (WTE) and landfill-gas-to-energy (LFGTE) activities. More recently, these endeavors have been joined by a variety of energy-from-waste practices, … Read More
On April 30, 2016, Elon Musk introduced the 10-kWh Tesla Powerwall to the public, pointing out that it was possible to string nine of the handsome, wall-mounted battery packs together for a combined storage capacity of 90 kWh, enough to keep the average household going full bore through a three-day-long … Read More
It never ceases to amaze me that two tiny hydrogen ions, hand-in-hand with oxygen, form one of the earth’s most precious resources—a molecule essential to all life.
With rising demand and diminishing supply, the value of this vital liquid continuously compounds. Water usage worldwide has steadily increased at more than twice … Read More
It’s not quite as serious as the toxic algae bloom in Lake Erie that cut off Toledo’s water supply a few years back, but it’s pretty dramatic nonetheless: A pond in Maine has an acre-sized blob of algae beneath its surface, and some local officials are calling the situation an … Read More
The fledgling electric utility companies that emerged after Thomas Edison opened his small Pearl Street, New York City, NY, power station in 1882 originally focused on distributed energy generation (DEG) operating within a microgrid. Edison envisioned that the electric utility industry would involve small firms generating direct current (DC) power … Read More
The Panama Canal is an engineering marvel. The 48-mile, manmade waterway connecting the Atlantic and Pacific Oceans is a system of colossal locks that gravity fills and empties to raise ships 85 feet and lower them back to sea level. The structure is a gateway essential to the global maritime … Read More
PCB sold in huge quantities around the world. Scientists continued to experiment and found the properties of the substance could be enhanced. With added carbon atoms and chlorine mass, PCB became a nearly waxy substance, ideal as an extender for pesticides to increase their adhesion when sprayed. And it lasts—resistant … Read More
Editor’s Note: This article was first published in the July/August 2005 issue of MSW Management. This series of three articles examines the costs involved in each stage of a generic landfill’s lifetime, shows how to do pro forma statements for profit and loss, and analyzes the tax and financial aspects … Read More
Editor’s note: A digital version of this article first appeared on Forester Network’s website in May 2001.
Overtime refers to those hours worked beyond eight hours per day or 40 hours per week. In some cases, overtime might be planned into a job. For example, some managers might schedule their better … Read More
This spring, more than 100 affiliate organizations from all sectors of the nation’s economy and civil society are working together to create discussion about infrastructural renewal. These efforts support Infrastructure Week (May 16–May 23), a national advocacy and education campaign aimed at elevating infrastructure as a critical issue in America. … Read More
Metallurgy and Welding 101: The Basics for Doing Hardfacing and Other Welding for Construction-Equipment Repair – Part 1July 31, 2016 |
For this primer on metallurgy and welding, the author interviewed an expert in the arc-welding field, Thomas J. Black, manager of hardfacing and high-alloy products for The Lincoln Electric Company in Cleveland, OH. Black, a metallurgical engineer, has more than 40 years’ experience in the welding field.
What are the main … Read More
By Donald H. Gray A conflict appears to exist between engineering requirements to compact soil to a high density to improve its engineering properties-such as increased strength and decreased compressibility-and agronomic needs to maintain soil in a relatively loose condition to improve its ability to support vegetation. This conflict or … Read More
A new study has once again confirmed that trees provide great value in urban settings—and also that we don’t value them enough.
Researchers from the US Forest Service and the University of California at Davis have calculated that the annual cost to keep a city tree alive is $19. For every … Read More
Most of us know the value of trees in an urban setting, not least for their role in managing stormwater. They have air- and water-quality benefits, they help reduce the heat island effect, and, when there are enough of them, the tree canopy can help capture enough rainfall to reduce … Read More
Los Angeles County Department of Public Works recently released the report on the findings of a study on the cumulative GHG emissions in two different scenarios. The Baseline Scenario involved the transport and disposal of 1,000 tpd of post recycled residuals from a mixed waste MRF in a landfill, while … Read More
For years, a tug-of-war between Republicans controlling the House of Representatives and California’s two Democratic senators over the state’s limited water supply has prevented Congress from resolving critical water allocation issues. But on Wednesday, May 25th, the House endorsed a plan (H.R. 2898) to divert more water from northern California … Read More