Do Constructed Wetlands Improve Water Quality?

wetlands at sunset

By Jael Batty

Constructed wetlands, which mimic natural wetlands, treat municipal and industrial wastewater, mine drainage, small business and household greywater, animal wastes, and agricultural and stormwater runoff. They are recommended by regulatory agencies as a best management practice to control urban runoff.
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Bio Energizer® Improves SVI by 50% at Citrus Plant Wastewater Treatment

citrus production

A citrus plant struggled with poor settling in the clarifier of its wastewater treatment, which caused the sludge blanket to remain high. Even at a low flow rate of 1.2 million gallons per day (MGD), the high sludge blanked allowed less than 18” of free board. The slightest flow increase caused solids to carry over the weir with the effluent. Since the citrus plant frequently produced wastewater flows 1.5 to 2.5 MGD, the wastewater treatment plant continued to suffer from solids washout and clarifier effluent total suspended solids (TSS) excursions. The citrus plant wastewater treatment was a 6 million gallon per day (MGD) traditional aeration system with secondary clarification.
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Industrial Wastewater Treatment for Corn Processing Plant

Bio Energizer Treatment for Corn Processing Plant

Within a few months of operation, a lagoon and spray field system at a corn processing plant in Indiana began giving off offensive odors. Chemical oxygen demand (COD) levels in the anaerobic and aerobic lagoons climbed to 8,000 mg/L and 4,000 mg/L respectively. The pH in the anaerobic lagoon was dropping dangerously low for methane production. Attempts to resolve the issues with bacteria, odor masking products, and lime were unsuccessful and short-term at best. Lime settled to the bottom of the lagoons, temporarily raising pH and reducing odors. The odor soon became unmanageable and an annoyance to neighbors.
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Bio Energizer, Micatrol & Bio Feed Reduce COD and Stabilize Wastewater Treatment for Plastic Producer

chartA plastic manufacturer in Taiwan needed a new process to efficiently treat elevated incoming chemical oxygen demand (COD) to comply with stringent EPA regulations for effluent discharge. The plant is an activated sludge treatment system with an influent of approximately 2,000 cubic meters per day (CMD) which is equivalent to approximately 530,000 gallons per day (GPD). The plant was unable to bring the plant into compliance using alternative technologies. 
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Recycled Sewage: What Are We Putting on Our Farmland?

farm fields

By Jael Batty

Sewage sludge is a controversial input for farmers to use. Considering the toxins in today’s wastewater, are our treatments and regulations effective in eliminating micropollutants from sludge?
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Caffeine in Our Water Supply: Do Our Habits Pollute the Environment?

By Jael Batty

Caffeine isn’t just prevalent in our food––it’s prevalent in our wastewater, waterways, and treated water. 

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Toilet–to–Tap—Taking the Ick Out of Wastewater Recycling

Drinking water at a water treatment facility

By Jael Batty

The UN warns that by 2030, over half the world will be water-stressed, affecting food production and increasing exposure to waterborne disease. There is enormous potential in directly recycled wastewater. Unfortunately, attempts at wastewater recycling have historically been shot down by  the public.1 Thus, most treated wastewater is dumped into oceans and other water sources, becoming wasted water.2 Continue reading

Recovering Wastewater Treatment Activated Sludge Systems After Hurricane Irma

By Heather Jennings, PE

Hurricane Irma hit Southern Florida in early September as a Category 5 hurricane with winds of 180 miles per hour.  Due to flooding and lack of power, millions of gallons of untreated or partially treated wastewater were spilled or discharged from overwhelmed systems Continue reading

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