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21 Cards in this Set
- Front
- Back
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Trickling filters are usually found in the process of the wastewater treatment process. |
Secondary treatment process |
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Drying beds, lagoons, and filter presses are all used for this process. |
Dewatering |
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Digester gas consists of |
70% methane and 30% carbon dioxide. |
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This digester tank is used to heat and mix. |
Primary digester |
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This digester tank is used to allow the seperation of supernatant from the digested sludge. |
Secondary digester |
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Facultative means |
both aerobic and anaerobic. |
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Pathogenic means |
able to cause disease. |
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Disinfection is |
the process designed to kill pathogenic organisms. |
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The killing of all organisms in wastewater is called |
sterilization. |
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_____________________ is used to neutralize the remaining chlorine in the effluent. |
Sulfur dioxide ( SO² ) |
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Oxygen deficiency is |
19.5% or less |
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SDS also stands for |
safety data sheet |
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PPE also stand for |
personal protective equipment |
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H2O2 is also |
hydrogen peroxide |
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H2SO4 is also |
sulfuric acid |
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H2S is also |
hydrogen sulfide |
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NPDES stands for |
National Pollutant Discharge Elimination System |
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Too much nitrogen discharged into receiving waters could result in this |
Excessive algae bloom |
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Sludge is periodically pumped from the sludge hopper in the primary clarifier to the __________________. |
Digesters |
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The two process used for the biological treatment for wastewater are |
Trickling filter and activated sludge |
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The two most common pumps in wastewater are |
centrifugal and positive displacement pumps |
