Leave Beckle Pool Treatment Experimental Device

The "stay Baker" aeration tank is used to treat the biochemical treatment of phenolic wastewater in the gas station, and most of the active sludge method is adopted. Under the action of aeration, due to the rise of the --r during aeration, the mixture flows vertically in the pool, and the potential energy of the mixture is also made due to the potential energy of water inlet, reflux sludge, and reflux mixture, and at the same time, the mixture is also made in horizontal direction in the horizontal direction. The central water collection pipe flows according to the spiral, so that the mixed fluid flows into the second sinking pool to precipitate.

The factory has performed a test. The test results show that the volatile phenol removal rate is generally 81 % to 93 %, the COD removal rate is generally 48 % to 62 %, and the BOD5 removal rate is generally 71 % to 90 %.

Through this experimental device, I hope to achieve the following purpose:

1. Master the basic operation process of "staying Beck" biological sewage treatment device;

2. Deepen the principle of understanding the experiment;

3. Understand the process and technical parameters of the experiment, and improve the theoretical and practical knowledge of students.

2. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 10 ～ 20L/h

3. Vertical stream two sinking pools: stay time 1.5 ～ 2.5h

4. Water inlet quality: CODCR 400 ~ 800mg/L out of water: CODCR 40 ～ 80mg/L

5. Inlet water quality: BOD5 200 ~ 400mg/L Out of Water: BOD5 15 ～ 30mg/L

6, water inlet suspension: SS 150 ～ 200mg/L out of water: SS 18 ～ 30mg/L

7, pH value: 6.5 ～ 8.5

1. Experimental purpose:

Leakage and anaerobic biological treatment technology is not only used for organic sludge and high concentration organic wastewater, but also can treat low concentration sewage. Compared with aerobic biological treatment technology, anaerobic biological treatment has high organic load, low sludge yield, low sludge yield. A series of obvious advantages such as low energy consumption. The lift -type anaerobic sludge bed (UASB) is a major structure of anaerobic biological treatment. It integrates anaerobic biological reactions and sedimentation separation. Organic load and removal efficiency are high, and no mixing equipment is required. This model is a teaching experimental equipment for lift -type anaerobic sludge beds. Through the hope of this experiment, the following goals are achieved:

1. Understand the internal structure of UASB leakage liquid;

2. Master the launching method of UASB leakage fluid, and the mechanism of the formation of sludge;

3. Dynamic tests on a cert--n sewage to determine process parameters and process water quality.

2. Technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 2 ～ 5L/h

3. Design in and out of water quality range:

Inlet water BOD5 1000 ～ 2000mg/L Out of water 50 ～ 100 mg/L

COD 2000 ～ 4000mg/L out of water 150 ～ 300 mg/L

Enter the water 100 ~ 300mg/L out of water 20-50 mg/L

Inlet water pH 6-9 out of water 6-9