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Package Sewage Treatment Plant Fossil Rim Texas

Fossil Rim Park Manager

When the Fossil Rim Wildlife Park needed a Package Sewage Treatment Plant Tex Tech Environmental was there!

Aeration basin Sewage Treatment Plant Texas

Aeration basin Sewage Treatment Plant Texas

Mechanical Clarifier Placement

Mechanical Clarifier Placement

The hillside below the Nature Store bustled with activity Aug. 28, as a package sewage treatment plant was placed upon a concrete slab via a 170-ton capacity hydraulic truck crane.

“This will turn the sewage from the Nature Store into clean water, and it will be discharged into the creek (beyond the giraffe pen),” said Cleve Weyenberg Jr., president of Tex Tech Environmental, Inc. “After using the crane to pick the two tanks up off the trailer and set them on the concrete slab, we made all the connections and put the plant into operation.”

Mechanical Clarifier Package Sewage Treatment Plant

View from top of Wastewater Treatment Plant overlooking Park

The plant sits right beside the outbound Overlook road, which closed in December of 2014, approximately 100 yards below the Nature Store. It is capable of treating 8,000 gallons of sewage per day.

“It’s state-of-the-art, but it doesn’t need to be high tech on the level a large municipal facility would require,” he said. “The water coming out of it is clear, odorless and disinfected with tablet chlorine.”

Blower Package

Blower Packages

The engineers on the project were the Stephenville-based Consulting Environmental Engineers, Inc.

“I’ve worked with them several times,” Weyenberg said.

Weyenberg shared the general process of the plant he manufactures.

“The larger rectangular tank is the aeration basin, while the smaller circular tank is the mechanical clarifier,” he said. “In the aeration basin, sewage comes in and air is pumped into it through diffusor assemblies that keep all the waste suspended in the liquid. That way, the bacteria that require oxygen to live are allowed to break down the waste. The clarifier has mechanical rakes that sweep the bottom of the floor, which is tapered toward the center.


Tyler Weyenberg – Plant Operations Technician and Operator

“That was done by the concrete we poured in after the clarifier was placed on the slab. There is an eight-inch sludge well in the center at the bottom of the clarifier. The sludge will be swept to the sludge well and then be airlifted through the sludge return to the aeration basin for further treatment. There is not any aeration in the clarifier. It’s very still in the clarifier, so any remaining suspended solids will settle out and be returned to the aeration basin via the sludge return.” Floating material in the clarifier is swept by a surface skimmer into the scum trough for return to the aeration basin via the airlift scum return.

Sewage treatment plant texas

Stairs to the Sewage Treatment Plant

A six-foot portion on one end of the aeration basin is actually the aerobic digester. When too much activated sludge has accumulated in the plant, the activated sludge from the clarifier will be returned to the aerobic digester for storage. Once in the digester the sludge is allowed to settle leaving a clear water blanket above the sludge which is then removed via an airlift pump leaving only the dewatered sludge in the digester for storage.

Discharge Drain Package Sewage Treatment Plant

Effluent Discharge directly onto the hillside to creek

This marked the first time Weyenberg had done any work for Fossil Rim.

“This and all of our wastewater treatment plants was built at our facility in Burleson,” he said. “In all, it was a three-month construction process. We needed a couple of days to get everything set up here.”

In regard to operation of the plant, it will be operated and maintained by a TCEQ licensed wastewater treatment plant operator.

“A TCEQ licensed operator has attended the required classes and passed the certification test for whichever license they hold and continuing education is a requirement to maintain your license,” Weyenberg said. “That person is responsible for the operation and maintenance of the plant.”

Weyenberg looks forward to a return to Fossil Rim.

“If Fossil Rim has future wastewater treatment needs, I would hope to have another opportunity to work with them,” he said.

REFERENCE: Published by the Fossil Rim Wildlife Park – 2015