Mercury, VOC, Zero Liquid Discharge


Our Filsorption* system uses activated carbon injection upstream of a standard primary or secondary particulate control system. 

The Mer-Cure* system uses a proprietary approach—injection of sorbent upstream of the air preheaters, for faster oxidation under higher temperatures.

  • Over 25 years of experience resulting in more than 20 industrial references and 29 GW installed
  • More than 2 million hours of reliable operation

Volatile Organic Compounds (VOC)

For Volatile Organic Compounds (VOC) mitigation, we provide thermal oxidizers and regenerative thermal oxidizers—mature technologies that have been sold for many decades.

Solution for Zero Liquid Discharge (ZLD)

Additionally, GE offers our Spray Dryer Evaporator (SDE*) solution for plants to achieve Zero Liquid Discharge (ZLD) when operating WFGD technologies. 

Our simple and cost-effective SDE technology uses hot flue gas to evaporate waste water. The dissolved or suspended solids are collected in existing particulate removal equipment. With the addition of lime to condition the waste water feed stream, acid gases in the flue gas can be captured as an added benefit.

Product Specifications

Product specifications for Mercury Control
Parameter  Number
Fuel Boiler flue gas
Reagent Activated carbon or activated lignite coke and/or non-carbon sorbents
Bromine Injection Optional depending on the halogen content in the coal
Removal Efficiency (%) Up to 92
Temperature (°C) 200
PAC Addition Rate (kg/106 Nm3/h) 50 - 200
Product specifications for SDE
Parameter  Number
Evaporation Rate (m3/h) 5 - 35
Wastewater TDS (mg/l) Up to 140,000
Wastewater TSS (%) Up to 20
Gas Flow Rate (Nm3/h) Up to 175,000
Max Inlet Temperature (°C) 400
Load Range per Module (%) 30 - 100
Availability (%) Up to 97
Product specifications for VOC Control
Parameter  Number
Gas Flow Rate (Nm3/sec) 0.2 – 20
VOC Concentration (% of LEL) 0 – 25
Load Range (%) 33 – 100
Dust Load (mg/Nm3 wg) Max 2.0
Operating Temperature (°C) 760 – 900
Oxygen content in Process Gas (%) 10 – 21
VOC Destruction Efficiency – Applicable for VOC Content Between 1000 ppm and 25% LEL (%) Max. 99.5
VOC Emission Applicable for VOC content below 1000 ppm (ppm) Min. 5
Availability (%) Up to 98