Experimental process experimental device for water plant process process

The task of treatment of water is to improve the quality of water, which makes it meet the water quality standards for drinking water and industrial production water.

This device is a medicine before the pump. The pump impeller is quickly mixed to quickly and evenly disperse the downtime water, which immediately dissolves, and the chemical reaction occurs, so that the colloid impurities in the water form a tiny velvet body. This process can be completed within 10-30 seconds (the water temperature is low and it will not exceed 2 minutes). In order to quickly sink the impurities particles, it must also have particles with larger particle size (0.6 ～ 1.0mm) and sufficient weight and strength (not easy to break). The task of the reaction phase is to create hydraulic conditions, so that the micro velvet can be condensed into a "alum flower" visible to the naked eye in a cert--n practice, and then enter the sedimentation pool to precipitate. The sedimentation tank uses a 60 ° sedimentation tank, which m--nly removes the suspended particles that can be removed through the effect of sinking. According to the theory of shallow pond, when the suspended particles are free to settle, the shallower the pool is shallow, the smaller the sinking speed of the suspended particles that can be intercepted, and the larger the intercepted suspended particles. This theory is suitable for pre -sinking pools for dr--nage treatment.

The process of this set of water plants, its theoretical and technical research, allows students to achieve the following goals:

1. Understand the process and technical design parameters of the wastewater factory;

2. Deepen the understanding of the basic concept of the water plant experiment.

2. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 45 ℃

2. Treatment of water: 0.5 ～ 1m3/h,

3. Water inlet turbidity: 30 ～ 100 °,

4. Water turbidity: 2 ～ 5 °,

5. Filtering speed of fast filter pool: 8 ～ 10m/h,

6. Total size of the device: 3200mm × 500mm × 2100mm

7. Power control system: 1 double -sided sub -light -dense -densely pattern plastic control box, leakage protector, voltage meter, lock button switch, wire tube, etc.

1. Experimental purpose and principle of electric flocculation reaction experimental device:

This experiment is to insert multiple sets of electrodes of positive and negative in the wastewater. When it is passed by DC, the electrolytic, particle polarization, electrophoresis, oxidation reduction, between electrolytic products and the interaction between wastewater.

When using a soluble electrode (generally st--nless steel) as anode electrolyte, the anode metal will dissolve the cationic cation of aluminum or iron, and combine it with the hydroxyl (OH-) in the water to form aluminum, iron hydroxide with strong adsorption performance , To adsorb the impurities particles in the water, forming floccope. This kind of floccope and the micro -foam (hydrogen) produced on the cathode are separated by --r.

Second, technical indicators and parameters of the electrical flocculation reaction experimental device:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 10 ～ 20L/h

3. Design in and out of water quality range:

Inlet water BOD5 600 ～ 1200mg/L Out of water 50 ～ 100 mg/L

COD 1000 ～ 2000mg/L out of water 100 ～ 200 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

4. Electric flocculation reaction pool: 凝350 mm × 600mm

5. Total size of the device: length × width × height = 800mm × 400mm × 1700mm

6. Power 220V single -phase three -line power 600W

Third, the m--n configuration of the electric flocculation reaction experimental device:

1. 1 original water tank: white PP plate material, 10mm thickness, 250 × 350 × 450mm, empty valve installed on the bottom plate, which is convenient for cleaning the water;

2. 1 water tank: white PP plate material, 10mm thickness, 200 × 350 × 450mm, empty valve installed on the bottom plate, which is convenient for cleaning the water;