Term
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Definition
| holds waste water (sewage) when it leaves the house |
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Term
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Definition
| area where waste water goes after it leaves the septic tank |
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Term
| allows solids to settle to bottom |
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Definition
| primary purpose of septic tank |
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Term
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Definition
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Term
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Definition
| bottom layer of septic tank |
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Term
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Definition
| middle layer of septic tank |
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Term
1) it smells
2) it contains harmful bacteria
3) it contains harmful solids and chemicals |
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Definition
| why do we have a septic system? |
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Term
| traps harmful/smelly gases from coming back up into the house |
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Definition
| what is the purpose of the P-trap? |
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Term
| how well the soil absorbs the water |
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Definition
| What determines the size of your drain field? |
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Term
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Definition
| Which type of soil absorbs water the best - clay, dirt or sand? |
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Term
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Definition
| What powers the movement of waste water in a normal drain field? |
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Term
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Definition
| the big pipe that connects sewer pipes from different houses - usually found under a street |
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Term
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Definition
| moves the waste water uphill |
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Term
| screening out of big solids |
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Definition
| first step in primary treatment at a sewage treatment plant |
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Term
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Definition
| settling out of solids occurs in this treatment of sewage |
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Term
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Definition
| bacteria break down organic solids during this stage of sewage treatment |
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Term
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Definition
| chlorine is added to waster water (sewage) to kill bacteria during this stage of sewage treatment |
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Term
| false - there needs to be oxygen in the water so that fish don't die |
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Definition
| T/F - The dissolved oxygen level should be low when the water leaves the sewage treatment plant. |
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Term
| true - if the level of nutrients (N & P) are too high, algal blooms can occur which will decrease the ammount of dissovled oxygen when they die and are consumed by bacteria |
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Definition
| T/F - There should be low levels of nitrogen (N) and phosphorus (P) in the treated wastewater when it leaves the sewage treatment plant. |
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Term
| false - you don't want the excess chlorine killing any useful bacteria in the environment where the treated wastewater is released |
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Definition
| T/F - The level of chlorine should be high when the treated wastewater leaves the sewage treatment plant. |
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