Health Check System Inspection

Can your compliance strategies keep up with complex plant operations?


Meeting state and federal compliance levels for mercury can be challenging. For example, results from tests conducted in the spring may not represent performance during hot summer months. Fuel quality can affect mercury emissions. An ADA-ES, Inc. (“ADA”) Health Check can provide guidance on how best to meet MATS compliance across a range of operating conditions.

ADA’s Health Check provides a compliance strategy review combined with expert analysis to ensure consistent and optimal compliance with state and federal mercury rules. This is a value-added approach from our experts, who have unmatched mercury control experience.

Your ADA Health Check will help you answer critical questions:

  • Are my systems ready for MATS?
  • Can I reduce my compliance costs?
  • Does my plant have any unique operating concerns that impact compliance:
    • Coal variability? Plant cycling?
    • Seasonal operational changes?
  • Will my scrubber reliably control mercury?
  • Are my ESP or Fabric Filter up to the task?
  • Could MATS compliance restrict my fuel and year-round operational flexibility? What can I do about it?
  • Is my monitoring strategy saving me time and money?
  • Am I using the right/best sorbent?
  • Will halogen improve performance?
  • Am I spending my compliance dollars wisely?
  • Will my strategy impact other current or pending environmental rules?

Value-Added Approach

  • Health Check provides a check-up on compliance technologies, including:
    • Unit-specific operation
    • Fuel variability and combustion
    • APC equipment and performance
    • ACI/DSI system operation
    • Sorbent usage rate
    • CEMS operation/function
    • Mercury emissions
  • Assess impact of changes in operations, including seasonal changes, cycling load, and fuel variability on future emissions
  • Rate your Hg control performance using ADA’s proprietary models
  • Provide recommendations for on-going compliance to improve reliability and reduce operating costs

Health Check Overview

Mercury in coal-fired plants exhibits complex chemistry. There are multiple factors that affect mercury emissions control. For example, the amount and form of mercury present downstream of the air preheater at a power plant is affected by: coal (rank, mercury, sulfur, halogen, iron, copper, calcium, magnesium); boiler type; coal classifier operation; combustion performance; SCR (catalyst type, condition, age, gas flow, ammonia flow, temperature); air preheater (type, quench rate, efficiency). Understanding how your system is operating compared to others in the industry is very challenging.

ADA’s in-house team of experts use an interactive engineering process to review plant operations from coal-pile to stack to assess the “health” of your control system. We will evaluate options to improve performance, reduce costs and provide you a detailed analysis for planning purposes.

Experience You Can Trust

We begin with brief interviews of the operators along with a detailed review of historical data This not only helps us identify key trends in your control effectiveness, it also uncovers potential threats to your compliance strategy.

Next, we travel to the plant to meet with operators and inspect the equipment (baghouse, ESP, ACI and DSI, coal additives, mercury CEMS, etc.) to determine if any equipment repairs or upgrades are needed.

Once we finish collecting data, we use our proprietary models to predict performance at a plant with similar operating characteristics. This allows us to provide a rating of plant MATS Compliance performance.

Health Check Report Cards Include

  • Your facility’s current standing – including mercury and/or acid gas control equipment
  • Our recommendations for any improvements to your system’s performance or general strategy

ADA’s Health Check can help you achieve increased mercury control system reliability and reduced operating costs.

Health Check Lite

We also offer a lite version of the Health Check designed to focus on your specific areas of concern. For example, we can limit the Health Check to just your ACI equipment or CEMS.

ADA – Your Trusted Emission Control Partner

ADA understands the many factors that affect mercury removal and we can help you determine the optimal control strategy for your plant and operations through our Health Check. We assess and recommend ways to improve performance, reliability and safety. Some of the key factors considered include:

  • Properties of the coal – including halogen content, sulfur mercury
  • Boiler operation, load profile, flue gas temperatures
  • Performance of emissions control equipment and operating practices
  • Relative costs and potential performance limitations of various control strategies

Our team has supported plants in evaluating mercury control options for more than 25 years, including conducting mercury control demonstrations at more than 100 plants.

We provide ACI systems serving more than 140 utility boilers, and have internationally recognized mercury control experts on staff. With our expertise on your side, it’s simple to save money and achieve your compliance goals.

Have a question about your ACI or DSI equipment? Contact us today to speak with one of our experts.

Need a recommended parts list for your ADA equipment? Let us know and we’ll provide one.

Email us today: Or call 720.598.3700 to speak to a member of our Customer Care Team