AWTC 计算机控制的厌氧废水处理设备

13.3.- 废水处理

Unit: AWTC. Computer Controlled Anaerobic Wastewater Treatment Unit

AWTC/CIB. Control Interface Box: The Control Interface Box is part of the SCADA system

Process diagram and unit elements allocation

創新系統

The Computer Controlled Anaerobic Wastewater Treatment Unit, "AWTC", has been designed by EDIBON to experimentally analyse the main factors influencing the biological digestion of wastewater.

查看一般說明

扩展

FSS

故障模拟系统
PLC

PLC控制工业过程
ESN

EDIBON SCADA-Net

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一般說明

The Computer Controlled Anaerobic Wastewater Treatment Unit, "AWTC", designed by EDIBON, enables the systematic investigation of anaerobic biological degradation processes. To ensure a proper microbial growth, this unit allows for precise control of temperature and pH through thermal jackets and dosing pumps for acid and alkali reagents. With all this, the influence of critical parameters such as temperature, pH, gas flow rate, feed flow rate and retention time is analysed. However, chemical oxygen demand (COD), nitrogen and phosphorus are excluded analytical measurements.

This unit provides two different technologies, which are anaerobic activated sludge and a UASB reactor. These processes can be used separately or in series, offering three different operating modes. Particularly, in the two consecutive stages, water is first acidified in an agitated tank with a decanter to recirculate biomass. Subsequently, the effluent rises through the UASB reactor to an upper system that separates effectively treated water from biogas. The last one is then purified by a foam separator.

This Computer Controlled Unit is supplied with the EDIBON Computer Control System (SCADA), and includes: The unit itself + a Control Interface Box + a Data Acquisition Board + Computer Control, Data Acquisition and Data Management Software Packages, for controlling the process and all parameters involved in the process.

練習和指導練習

手册中包含的指导实践练习

  1. Study of anaerobic digestion in wastewater using a UASB reactor.
  2. Study of the influence of temperature and pH on anaerobic digestion.
  3. Study of the influence of loading rate and flow rate on anaerobic digestion.
  4. Study of the effect of biomass recirculation on anaerobic digestion.
  5. Comparison between single-stage and two-stage operation in anaerobic digestion.
  6. Calibration of sensors.

与该单位进行更多实际操作

  1. Study of biogas production kinetics.
  2. Evaluation of the behaviour of a UASB reactor under steadystate and transient conditions.
  3. Study of the influence of feed flow rate on treatment efficiency.
  4. Study of sedimentation and biomass retention phenomena in anaerobic reactors.
  5. Characterisation of the operation of an anaerobic system using operational parameters.
  6. Influence of hydraulic retention time.
  7. Determination of optimal conditions to maximise biogas production.
  8. Start-up and stabilisation of an anaerobic reactor.

Other possibilities to be done with this unit:

  1. Many students view results simultaneously. To view all results in real time in the classroom by means of a projector or an electronic whiteboard.
  2. Open Control, Multicontrol and Real Time Control. This unit allows intrinsically and/or extrinsically to change the span, gains, proportional, integral, derivative parameters, etc, in real time.
  3. The Computer Control System with SCADA and PID Control allow a real industrial simulation.
  4. This unit is totally safe as uses mechanical, electrical/electronic, and software safety devices.
  5. This unit can be used for doing applied research.
  6. This unit can be used for giving training courses to Industries even to other Technical Education Institutions.
  7. Control of the AWTC unit process through the control interface box without the computer.
  8. Visualization of all the sensors values used in the AWTC unit process.
  9. By using PLC-PI additional 19 more exercises can be done.
  10. Several other exercises can be done and designed by the user.

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