For a flocculent suspension, determine the removal efficiency for a basin 3.0 m deep with an overflow rate v. of 0.05m/min using the laboratory settling data presented in the following table. Time, min 20 30 40 50 60 70 80 0.6m 61 70 81 95 Suspended solids removed at indicated depth, % 1.2m 1.8m 2.4m 63 71 78 90 58 65 72 77 86 62 67 74 78 86 3.0m 60 63 70 74 77

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For a flocculent suspension, determine the removal efficiency for a basin 3.0 m deep with an overflow rate of 0.05 m/min using the laboratory settling data presented in the following table. 

**Determining Removal Efficiency of Suspended Solids in a Flocculent Suspension**

For a flocculent suspension, we aim to determine the removal efficiency for a basin that is 3.0 meters deep with an overflow rate (\(v_c\)) of 0.05 m/min. The laboratory settling data is provided in the following table:

| **Time (min)** | **Suspended solids removed at indicated depth (%)** |
|----------------|----------------------------------------------------|
|                | **0.6m** | **1.2m** | **1.8m** | **2.4m** | **3.0m** |
| **20**         | 61       |          | 63       | 58       |          |
| **30**         | 70       |          | 71       | 65       | 62       | 60 |
| **40**         | 81       |          | 71       | 72       | 67       | 63 |
| **50**         | 95       |          | 78       | 72       | 74       | 70 |
| **60**         |          | 90       |          | 77       |          | 74 |
| **70**         |          |          | 86       |          | 78       | 74 |
| **80**         |          |          |          | 86       |          | 77 |

### Explanation of the Table

The table displays the percentage of suspended solids removed at various depths (0.6m, 1.2m, 1.8m, 2.4m, 3.0m) over different time intervals (20 min to 80 min). For each depth, the percentage of removal is recorded at specific time points to understand how effective the sedimentation is over time.

- **At 20 minutes**, the removal percentage at different depths starts from 61% at 0.6m, reaching 58% at 1.8m.
- **At 50 minutes**, there is a significant increase in removal efficiency at shallow depths, with 95% removal at 0.6m.
- **At 80 minutes**, the removal percentage is 86% at 2.4m and 77% at 3.0m, indicating more extended times improve removal efficiency, especially at greater depths
Transcribed Image Text:**Determining Removal Efficiency of Suspended Solids in a Flocculent Suspension** For a flocculent suspension, we aim to determine the removal efficiency for a basin that is 3.0 meters deep with an overflow rate (\(v_c\)) of 0.05 m/min. The laboratory settling data is provided in the following table: | **Time (min)** | **Suspended solids removed at indicated depth (%)** | |----------------|----------------------------------------------------| | | **0.6m** | **1.2m** | **1.8m** | **2.4m** | **3.0m** | | **20** | 61 | | 63 | 58 | | | **30** | 70 | | 71 | 65 | 62 | 60 | | **40** | 81 | | 71 | 72 | 67 | 63 | | **50** | 95 | | 78 | 72 | 74 | 70 | | **60** | | 90 | | 77 | | 74 | | **70** | | | 86 | | 78 | 74 | | **80** | | | | 86 | | 77 | ### Explanation of the Table The table displays the percentage of suspended solids removed at various depths (0.6m, 1.2m, 1.8m, 2.4m, 3.0m) over different time intervals (20 min to 80 min). For each depth, the percentage of removal is recorded at specific time points to understand how effective the sedimentation is over time. - **At 20 minutes**, the removal percentage at different depths starts from 61% at 0.6m, reaching 58% at 1.8m. - **At 50 minutes**, there is a significant increase in removal efficiency at shallow depths, with 95% removal at 0.6m. - **At 80 minutes**, the removal percentage is 86% at 2.4m and 77% at 3.0m, indicating more extended times improve removal efficiency, especially at greater depths
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