Energy Optimization in Water and Wastewater Treatment Plants

An optimized system consumes less electrical power, results in reduced maintenance work, and increases the life of operational units. Special focus on aeration. Energy optimization helps ensure environmental compliance.

This course is offered at the Global Water Center in Milwaukee where a first-of-its-kind simulator of the entire water cycle is set up by NEW Works to rapidly train professionals on the concepts for next generation water systems.  This first of its kind hands-on learning laboratory in the US was developed by FESTO Didactic with the support of German Water Association in collaboration with the University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management.

Who Should Attend

Water Utility Directors
Industrial Water Management professionals
Environmental Sustainability Engineers/Managers
Process Control Engineers
Freshwater Supply Engineers and Technicians
Wastewater Treatment Plant Engineers and Technicians
Government leaders, Regulators and Policy makers

Benefits and Learning Outcomes

Energy consumption and power generation
Forms of energy, efficiency and power
Interference and water supply
Energy optimization of pumping using closed-loop control technology
Energy optimization of aeration and costs
Causes of waste of energy
Energy management
Energy production in wastewater plants

Course Outline/Topics

In this course the learning and understanding happens by way of doing hands-on laboratory exercises on the EDS – Water Management System.  Class size is limited to ensure everyone is able to participate in the learning process. Below are learning outcomes from the exercises included in this course.

Consumption of primary energy:

  • Name the main sources of primary energy in his or her own country / region
  • Outline the ecological implications connected with the use of different energy sources.

Energy consumption in facilities for water- and wastewater treatment:

  • List the types of energy consumed in the plant
  • Assess the ecological implications of the types of energy
  • Set the basis for an energy management system
  • Find cases of energy waste and excessive energy consumption
  • Develop first ideas for energy saving

Assessment of electrical energy consumption in a wastewater treatment plant:

  • Document the electricity consumption of the plant
  • Identify potentials for energy saving by using a benchmark

Examine the electrical energy consumption of the EDS for Water Management:

  • Calculate efficiency using the related basic formula
  • Conduct initial analysis with energy monitoring software
  • Name the various forms of energy used by the system

Forms of energy:

  • Name energy conversion and potential energy losses of a system
  • Assign different forms of energy to components of the training equipment

Efficiency of the pump:

  • Find the optimum voltage to operate a pump
  • Compare different pumps and access their efficiency
  • Measure and calculate the efficiency of a pump

Effects of interference in the piping system:

  • Identify the difference in energy consumption between the free and the narrowed system

Optimizing energy consumption in fill level control

  • Compare and interpret different control strategies of closed-loop control regarding their energy demand

Optimizing flow control

  • Determine control settings of closed-loop control to optimize energy consumption

Calculation of aeration cost

  • Calculate the electricity cost of aeration
  • Describe the effect of efficiency on the cost of the aeration process

Excessive energy consumption and counter measures

  • Systematically analyze deficits in energy consumption
  • Find possible reasons
  • Develop counter measures
  • Name data necessarily needed to allow a successful evaluation

Permanent control of the measures and energy optimization

  • Evaluate measures for energy saving
  • Develop key indicators to control the effectiveness of the measures taken
  • Describe the structure and methods of energy management

Cost optimization

  • Check and optimize the conditions of purchasing electricity for a facility

Estimate the power generation

  • Name the total energy demand of different sludge stabilization technologies for a given wastewater treatment plant
  • Calculate the gas production possible in litres and in kWh
  • Calculate how much electricity could be generated out of it
  • Determine the total reduction of electrical energy demand

Dates and locations to be announced.