Cuatro Communidades Case Study
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h1. Four Communities Case Study {float:right|border=2px solid black|width=240px}!plant.JPG|width=240px! h5. Interior of AguaClara water treatment plant at Cuatro Comunidades {float} |
In
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the
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summer
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of
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2009,
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an
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evaluative
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study
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of
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the Cuatro Communidades plant was performed.
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At
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the
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time
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of
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the
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study, the Cuatro Communidades plant implemented the most recent AguaClara designs. These designs aimed to increase treatment efficiency while minimizing construction costs. The study focused on three components of the plant- the chemical dose controller (CDC), the flocculator and the sedimentation tanks although some aspects of the chlorination system were additionally examined.
Chemical Dose Controller
The chemical dose controller in the plant was the first generation model of the technology. The system was monitored and a new CDC was constructed. Theoretical and actual alum doses were compared for both models.
Flocculator
Settled water turbidity was compared at various locations along the flocculator.
Sedimentation Tanks
The Cuatro Comunidades plant was designed to accomodate a floc blanket but clear evidence of a floc blanket had not been observed. One sedimentation tank was shut off in an attempt to form a floc blanket. Also, the effluent turbidity from the plant was compared to the settled water turbidity at the end of the flocculator.
Chlorination System
Chlorine residual in the distribution line and the flow rate of the chlorine flow control module were examined.
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{float:right|border=2px solid black|width=600px}!influenteffluent.JPG|width=600px! h5. Source water from a river above the plant and clear water in the exit channel{float} the Four Communities plant implemented the most recent AguaClara designs. These designs aimed to increase treatment efficiency while minimizing construction costs. The study focused on three components of the plant- the chemical dose controller (CDC), the flocculator and the sedimentation tanks although some aspects of the chlorination system were additionally examined. h3. [Chemical Dose Controller| Cuatro Communidades Chemical Dose Controller] The chemical dose controller in the plant was the first generation model of the technology. The system was monitored and a new CDC was constructed. Theoretical and actual alum doses were compared for both models. h3. [Flocculator | Cuatro Communidades Flocculator] Settled water turbidity was compared at various locations along the flocculator. h3. [Sedimentation Tanks | Cuatro Communidades Sedimenation Tanks] The Cuatro Comunidades plant was designed to accomodate a floc blanket but clear evidence of a floc blanket had not been observed. One sedimentation tank was shut off in an attempt to form a floc blanket. Also, the effluent turbidity from the plant was compared to the settled water turbidity at the end of the flocculator. h3. [Chlorination System| Cuatro Communidades Chlorination] Chlorine residual in the distribution line and the flow rate of the chlorine flow control module were examined. |