Community wastewater treatment training device

Community wastewater treatment tr--ning device,Factory power distribution experimental device

1. Scope of application:

The A/O biochemical treatment process includes two stages: hypoxic acidization and contact with oxidation. It is suitable for life and production of wastewater in life, medicine, food and other industries. The entire processing system is m--nly composed of grids, water tank adjustment pools, aerated sand ponds, acidized pools, contact oxidation pools, two sink ponds, sludge concentration pools, fan, pumps, etc.

Its process principle:

After the sewage is removed from the large particles and fiber impurities, it flows into the adjustment tank from the pump and the acidification pool is then entered through the pump to perform acidification and hydrolysis (the mixing equipment is provided in the pool). At this stage, the sewage is m--nly used to adjust the uniform quality of the sewage, and the characteristics of the macromolecular structure that is not easy to degrade with the characteristics of short -generation, strong activity, and easy reproduction and growth of the oxygen agonation into small molecules and soluble compounds, and initially degraded organic matter. At the same time, the nitrification effect is completed, and the pollution of nitrogen is finally eliminated.

Contact oxidation pool is a biological treatment device that is m--nly biofilm and has active sludge method. Through fan and oxygen aeration, the organic matter of the sewage is fully exposed to the biofilm in the pool, and the adsorption and degradation function of oxygen bacteria is used to further degrade the small molecules and soluble compounds into carbon dioxide and water; then enter the second sink pool to remove the peeling off The biofilm and active sludge, the water flows into the sand filter pillar filtering, the water out of the water is flowing into the pump, the pump can be pulled out of the pump, and some sludge can return the regulating tank.

2. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 10 ～ 20L/h

3. Sewage stays in the pool: 8H

4. Staying time of two sinking ponds: 1.5 ～ 3.5h

5. Qi and water ratio: 20 ～ 40:

6. Design in and out of water:

Inlet water BOD5 180 ～ 360mg/L out of water 18 ～ 50 mg/L

CODCY 360 ～ 760mg/L out of water 30 ～ 80 mg/L

Inlet water SS 80 ~ 160 mg/L out of water 8 ～ 20 mg/L

Community wastewater treatment tr--ning device,Factory power distribution experimental device

I. Overview

"Factory Power Supply Technology Tr--ning Device" is "Advanced Electrician Technology", "Electrician Basics (Advanced Works)", "Electrician Technician Tr--ning Teaching Materials" compiled based on the Machinery Industry Vocational Skills Appr--sal Guidance Center Electrical Technology Course is developed and produced. M--nly the microcomputer relay protection device, the automatic power supply of the backup power supply, the automatic power automatic compensation device, intelligent compensation device, intelligent compensation device, intelligent compensation device, intelligent compensation device, intelligent compensation device in the teaching materials in the textbook If the collection module and industrial human machine interface are designed and developed, such as the first, secondary, control, and protection of electrical interfaces of industrial human machine interfaces, the skills tr--ning in the tr--ning device can be in -depth understanding of professional knowledge, and the practical skills of students can be cultivated. Essence In addition, this set of tr--ning devices also helps students understand and master the work characteristics and wiring principles of transformers, electric units, current intestines, voltage transformers, simulation tables, digital electronometers and switch components.

Two and characteristic

1. Strong practicality

According to the typical teaching content, this device solicited the advice of professional teachers and absorbed the actual experience in engineering applications in the development. Compared the requirements for the tr--ning requirements of the power, transportation, allocation, control, and protection of the power supply system. During the tr--ning, students can also master the correct circuit -cutting operations, pouring operations, operating control, and adjustment operation procedures for various operation methods. This device has a clear structure, flexible operation, convenient operation, safe and reliable. Establish a good tr--ning platform for students to improve their practical skills.

2. Strong comprehensiveness

This device integrates functions such as microcomputer line protection, microcomputer motor protection, self -voting and non -contribution compensation. The use of industrial site products, line models and motor models can be more typical of the livelihood conditions of the simulated factory, which is conducive to theoretical analysis and numerical analysis.