Purpose: To introduce teachers to the watershed, water conservation, and
- Home Tips
East Texas Water Purification Plant: on Federal
Mr. Robinton gave us an excellent introduction to the freshwater treatment
plant. Houston recieves all of its water from surface sourceds such as
the Trinity River and Lake Houston as opposed to groundwater. Because
Houston sits on clay, the city and surrounding areas are prone to subsidence
as the groundwater level decreases. There are areas in the NW of Houston
that are still experiencing subsidence, but continue to remove groundwater.
Belt, Water Conservation Educator:
shows the teachers the forebay, where water from the Trinity is filtered
out for large animals and debris.
Chemicals are added to reduce odor, kill bacteria and cause particles
to 'floc' together for easy removal.
As we moved down the 'train', the water became clearer as silt continually
sinks and is removed. At this end of the train, the water falls over weyrs
to increase oxygen and again catch large particles that may have fallen
in. From there, the water is filtered through a combination of sand, gravel
The plant continually monitors the quality of the water as it exits each
part of the plant. Chemists can determine the quantity of chemicals to
add in order to maxamize effective use of resources
West University Sewage Treatment Plant
Tour of a Sewage Treatment
Toured the process of sewage treatment. Discussed water monitoring.
We started off in the intake area. Here a grate stops the larger objects
from entering the
system. This helps reduce the wear and tear on the system.
This blue tube is called an Archmedies screw and works to brings the sewage
up and into the plant.
Sometimes your senses are on overdrive when truely experiencing a field
trip. The sewage treatment plant is not just a visual trip.
The next step showed the bacteria being added that eats the solid waste.
The water then goes into a filter pool and a skimmer removes any floating
The water then enters another holding tank where chlorine is added to
kill any bacteria and lastly sodium bi-sulfate is added to remove the
chlorine right before it is sent out into Braes Bayou.