A Missouri University of Science and Technology professor has shown that improving wastewater treatment and saving energy are not only essential, but they’re also compatible.
Dr. Jianmin Wang, professor of civil, architectural and environmental engineering at Missouri S&T, has developed multiple wastewater treatment technologies that produce freshwater that is not only cleaner than wastewater treated using traditional methods, but also requires less maintenance and energy. Additionally, his inventions can be used to retrofit existing wastewater treatment plants.
On Feb. 6, Missouri Gov. Jay Nixon announced nearly $1.1 million in grants for the Small Community Engineering Assistance Program, implemented through the Department of Natural Resources to help communities with wastewater engineering costs, whether it’s commissioning a report or making repairs and upgrades.
Although his technology is too new, in regulatory terms, to be of use in the grant recipient communities, Wang says his technology is superior to existing ones in terms of cost and treatment efficiency.
Wang will discuss his treatment systems during a presentation titled, “Harnessing Energy and Freshwater from Wastewater: Reversing the Environmental Footprint” at 3:30 p.m., Friday Feb. 27, in Room 314, Butler-Carlton Hall on the Missouri S&T campus.
Part of his talk will focus on comparing how much energy existing systems use and how much his can save.
Wang says 0.8 percent of America’s energy use is spent on wastewater treatment. Much of that energy is used to aerate the tanks where wastewater is treated. The energy is used to feed oxygen to the microorganisms that consume the waste, and traditionally wastewater treatment plants maintain an oxygen concentration of 2 milligrams per liter to feed the bugs in the tanks, “which makes them happy,” Wang says.
The prevailing thought has been that providing less than 2 milligrams per liter of oxygen would make the microorganisms “unhappy.” But Wang does not believe that is an issue, saying that if you feed them at a lower concentration, such as 0.5 milligram per liter, it makes them a little less happy, but the microorganisms will live longer and enrich more – plus you use 30 percent less energy during oxygen infusion to produce the same results.
“You can make them a little unhappy,” Wang says, “because bugs do not have a union.”
He has also developed another treatment system called an Alternating Anaerobic-Anoxic-Oxic (A3O) process that “can achieve superior effluent quality since it can remove organic pollutants plus nitrogen and phosphorous nutrients,” Wang says. It does this without chemicals, and its effluent contains only 5 milligrams per liter of total nitrogen and 0.5 milligram per liter of total phosphorous. It also saves more than 10 percent of energy compared to the conventional pre-anoxic process, which has significantly less total nitrogen and total phosphorus removal.
With its high performance, high energy efficiency and low operational costs, on a large scale the technology could help curb global surface water eutrophication, which is one of the National Academy of Engineering’s Grand Challenges – the accessibility of freshwater.
Read more: Missouri S&T researcher cleans wastewater
The Latest on: Wastewater into Fresh Water
[google_news title=”” keyword=”Wastewater into Fresh Water” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Wastewater into Fresh Water
- 3 Water Stock Wonders to Quench Your Portfolio’s Thirst for Profitson March 1, 2024 at 5:05 am
The former category mainly focuses on water delivery and wastewater transport and treatment ... directive or the process of converting salt water into potable (drinkable) water. With freshwater ...
- Revolutionary technology could help prevent nearly 40% of the world from experiencing ‘water stress’ by 2050 — here’s howon February 29, 2024 at 3:00 am
The Earthshot Prize can help us reach the rest of the world." Revolutionary technology could help prevent nearly 40% of the world from experiencing ‘water stress’ by 2050 — here’s how first appeared ...
- Fracking wastewater will stay in Lujan Grisham's strategic water planon February 27, 2024 at 4:00 pm
The governor announced the plan to tap the state's massive brackish water and fracking wastewater potential at the United ... sparing New Mexico's freshwater supply that's expected to decrease by 25% ...
- One Way to Preserve Alcatraz? Capture Everything in 3-D.on February 27, 2024 at 4:00 pm
They seized a cell block at the federal penitentiary for two days, prompting the Marines to respond and throw grenades into the building from the ... only bring tourists but also deliver fresh water ...
- $5.8 billion federal funding for water infrastructureon February 26, 2024 at 8:03 pm
Last year, just over 2 billion gallons of CSO wastewater were discharged into the river from five cities along the Merrimack. The previous record, set in 2021, was 823 million gallons, said John ...
- Missouri meatpacker that sought to dump wastewater into river will shut downon February 26, 2024 at 4:00 pm
A Southwest Missouri meatpacking plant that sought to dump treated wastewater into an impaired river will halt operations — at least temporarily. Missouri Prime Beef Packers will shutter its ...
- Water and Sewage Global Market Report 2024on February 26, 2024 at 3:17 pm
The "Water and Sewage Global Market Report 2024" report has been added to ResearchAndMarkets.com's offering. The global water and sewage market is projected to expand significantly, reaching an ...
- Wastewater testing for viruses increased during the COVID pandemic. Alaska health officials are working to expand those efforts.on February 23, 2024 at 4:00 pm
Now, the state is looking into finding ways to expand those efforts in more rural parts of the state and to track other diseases. The state recently hired a wastewater informaticist to help manage ...
- Making wastewater less acidic could help the ocean capture more carbonon February 23, 2024 at 12:10 pm
Adding alkaline chemicals to the huge volumes of wastewater discharged into the oceans each year could increase the amount of CO2 that gets sequestered, but the idea has been controversial ...
- New well brings fresh water to Park City Schoolson February 22, 2024 at 6:30 am
Students, teachers and staff can fill their water bottles, and also get water out of the drinking fountain once again. Clean fresh drinking water returned to Park City Schools in March of 2023.
via Bing News