Mine sewage treatment training device

The device is designed for sewage treatment of coal mines. Its process principle is as follows: sewage enters the water collection tank, and uses pumps to measure into the traditional corner concentration pool, remove a large amount of coal particles in the sewage, and then flow into the oxidation pool by themselves. It m--nly removes mixtures such as phenols, sulfur, ammonia and other mixtures in the sewage. After biochemical, the water cont--ns a biofilm, flowing into the vertical stream sedimentation tank (the sludge at the bottom of the pond to the dry sun), and the water is filtered through the sand filter column. (The water tank is kept enough water for filter column backwashing).

2. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 10 ～ 20L/h

3. Design in and out of water:

Water inlet BOD5 200 ~ 400mg/L Out of Water 25 ～ 50 mg/L

COD 400 ～ 800 mg/L out of water 40 ～ 80 mg/L

Entering SS 100 ～ 200 mg/L out of water 10 ～ 20 mg/L

Inlet water pH value 6-9 water 6-9

4. Device shape size: 1700mm × 500mm × 1700mm,

5. Work power: AC220V ± 10%, 50Hz, single -phase three -line system, 500W power, safety protection: ground protection, leakage protection, overcurrent protection

3. M--n configuration:

1. 1 original water tank: white PP plate material, 10mm thickness, 600 × 400 × 500mm, empty valve installed on the bottom plate, which is convenient for cleaning the water;

2. 1 water tank: white PP plate material, 10mm thickness, 400 × 400 × 500mm, empty valve is installed on the bottom plate, which is convenient for cleaning the water;

3. 1 set of paddles from the original water tank mixing motor, 304 st--nless steel mixing paddle; (power 25W, speed 120rpm), (including 1 tone speeder)

4. In contact with 1 set of oxide ponds, organic glass materials, wall thickness 10mm, 350 × 300 × 550mm, aerated device, semi -soft filler

1. Experimental purpose:

1. Through the operation of the system, you can deepen the understanding of the characteristics and operation of the processing system.

2. Familiar with and understand the control method of active sludge h--r treatment system. Further understand the control parameters such as sludge load, sludge order, and dissolving oxygen concentration and the role and significance in actual operation.

2. Working principle:

Active sludge is one of the m--n methods of sewage treatment. Judging from the current status of sewage treatment at home and abroad, most urban sewage and almost all industrial wastewater are treated with active sludge. Therefore, this experimental method is particularly important.

The active sludge treatment system is fully mixed with mixed aeration sedimentation tank. It has the advantages of strong resistance to impact load, uniform water quality in the aeration tank, balanced oxygen demand, equal sludge load, similar microorganisms and low motion consumption, but but but Microorganisms have low degradation to organic matter, which is prone to expansion of sludge, and the water out of water is slightly worse.

3. Complete hybrid aeration pool:

Fully hybrid aeration tanks often use impeller oxygen supply, mostly round, square or polygonal pools, which are suitable for the range of the impeller. Change the diameter of the impeller can adapt to different diameter (length) and different depth pools. The rectangular aeration pool can be divided into a series of square units that are connected to each other, and each unit is set with a impeller.

4. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 20 ～ 30L/h

3. Puzzle uses copper pump -shaped impeller: D = 100

4. Leaf wheel speed: (can be adjusted at any speed) 50 ～ 60R/min

5. Sewage stay in the pool: 4-6h

6. Design in and out of water: