Air/Tak's high capacity landfill and Methane gas dryers helps you purify and take the moisture out of methane gas streams. Subzero dewpoints help purify and prevent valve and pipe freeze ups. Air/Tak's design includes a Z-purge system to supply clean pilot air into the control box to make it the safest in the market today. Pictured is one of our landfill gas dryers.

Features:

• System built for hazardous location
• Nema 7 Class 1 Div II group D
• - 20 to -40F Dewpoints
• Low pressure drop < than 1.5 PSID
• Valving system for regeneration gas loop
• Airtouch PLC control system

Controls:

Our AIR/TOUCH® PLC based touchscreen controller will display the system in action as well as the air flow rate and gas dewpoint level. A graphical trending data screen will keep you updated with the continuous purity levels. Ethernet and Modbus communications available to interface with your central control systems.

Applications:

• Landfill gas processing
• Waste water treatment gas processing
• Natural gas processing plants
• Biogas treatment
• Coal bed methane gas processing

Benefits:

• Sell the gas to utilities or local factories for a profit
• Environmentally friendly - Tax Credits
• Reduction in flare gas is good for environment
• Air/Tak is a partner with the EPA Landfill Methane Outreach program

Other Products available for landfill projects:

• Nitrogen generators
• Desiccant dryers for pilot air
• Carbon Filters and adsorbers
• Process Heat Exchangers

Click here to view our custom engineering capabilities.

Click here for answers to any of your technical or application questions.

As requirements for underground collection and storage of products and materials become more stringent, industries and government agencies are looking for new options for the collection and storage of chemicals and for the collection of landfill leachate. The best underground storage tank for many chemicals and leachate is a structurally strong, corrosion-resistant, watertight vessel that is both cost-effective and easy to install. By virtue of its materials and design, a Xerxes fiberglass chemical tank fits these requirements. Rustproof and long-lasting, Xerxes offers customers a maintenance-free fiberglass tank for specific chemicals and for leachate.*

Examples of chemical applications are emergency drain collection, runoff, water-treatment chemicals, airport deicing (glycol storage), irrigation-systems collection and road-treatment chemicals. Examples of leachate applications are municipal solid-waste landfills, industrial solid-waste landfills, mining solid-waste landfills and agricultural solid-waste landfills.

Xerxes fiberglass chemical and leachate tanks are:

• constructed of rustproof, long-lasting fiberglass
• designed with integral ribs for added strength
• manufactured with premium resin for tank's inner surface
• designed for H-20 load conditions
• manufactured to applicable requirements of UL 1316
• available in double-wall and triple-wall models
• available in sizes from 600 gallons to 40,000 gallons.

* To determine the appropriate resin system for a specific tank, a customer must complete and submit a Xerxes Underground Chemical Tank (UCT) Application, listing the specific chemicals to be collected and stored or the composition of the leachate to be collected.

Electronics Recycling: Good for Your Company, Great for the Environment

According to the EPA, computers, fluorescent lamps, and other electronics contribute about 70 percent of the lead, mercury and other heavy metals in landfills. These toxins have been proven to harm the environment. If your company is retiring old computer systems or electronics, it pays to recycle that electronic waste. SAMR (Supreme Asset Management Recovery) can help you with all of your electronic recycling needs. We can help you determine the value of your old computer equipment and, if rendered invaluable, we can help with recycling it. It doesn't matter if you need battery recycling, CRT recycling or computer monitor recycling. SAMR handles it all! With our zero tolerance landfill policy SAMR recycles 100% of the electronic waste we receive in-house; ensuring that you do your part for the environment.

Recycling Electronic Equipment in Compliance with Regulations

Our main recycling facility has a Class D Recycling Permit and is audited monthly to verify compliance with all local and federal regulations. Due to our long commitment to the environment, we have the expertise to recycle anything electronic. We are constantly improving our process to lower costs and enhance our performance to make less of an impact on the environment, extract more value, and lower electronic recycling costs. SAMR's environmental program eliminates long term liability and assures clients of regulatory compliance.

• CRT/Computer Monitoring Recycling
• Battery Recycling
• Lamp and Ballast Recycling

Are you ready to explore electronic waste recycling for your company?

Please click on the links to the right for more information, request a quote or Click here to contact us.

CHP is an important part of America's energy future. The national average for converting fuel to electric power (fuel-use efficiency) through conventional means (central station plants) is about 33%, which means that the remaining 67% of the fuel energy is wasted: either being exhausted into the atmosphere or discharged into water streams. CHP systems recover part of that wasted energy by recovering ~55% of the fuel energy in the exhaust to provide the heating, cooling, and/or dehumidification needs of co-located buildings and/or industrial processes. Combining that with a ~30% fuel energy conversion to electricity, CHP systems can have a fuel-use efficiency as high as 85%. With efficiencies this high, CHP facilities typically meet local, state and/or federal standards to qualify for the tax incentives associated with the renewable energy classification of power production.

As landfills in this country are encapsulated, the methane gas that is generated within the landfill can be used to fuel reciprocating engines in a cogeneration power plant. These engines are specially designed to run on the lower quality landfill-generated gas, making the operation of the entire power generating facility very economical as they produce both electricity and heat from the decaying waste. MMR Power Solutions is at the forefront of this emerging technology, and can develop power plants of any size using this fuel source.

MMR Power Solutions is currently developing a hybrid power plant, composed of both solar and biomass technologies. Using parabolic mirrors in a trough configuration, we concentrate solar radiation to heat a special fluid which is then used to generate steam to drive a turbine. This process is supplemented by a biomass facility which burns cow manure to heat the same process fluid at night, enabling power production to continue 24 hours a day.

Oxygen and Methane Analyzer monitors recovered gases from a landfill site. Continuously removes moisture from the wet sample gas without the need for cooling water or compressed air.

Quick Links:

• Learn more about our Oxygen and Methane Analyzers...
• View our Product Sheet .pdf
• Questions about our leading landfill Oxygen and Methane Analyzer? - email us your question - we are here to help!
• Request a quotation

FEATURES

• Microprocessor controlled
• Digital readouts
• Long-life, replaceable oxygen sensor
• Infrared methane detector
• Alarm relays
• 4-20ma outputs for each gas
• Built in sample pump, filters, flowmeter and calibration valves
• Sample pre-filter included
• Automatic moisture removal
• NEMA 4x enclosure

Use the links below for additional product information, data sheets, and specifications:

• Flue Gas Analyzers - O₂, CO₂, CO, SO₂, NO_x, HCL, stack temperature and pre-mix air and gas analyzers.
• Engine Exhaust Analyzers - O₂, CO, CO₂, HCs and NO_x for propane, gasoline and diesel powered vehicles and fork lift trucks. Calculates LAMBDA and A/F ratio. Oil temp and RPM optional. Portable and continuous models available.
• Online Process Analyzers - O₂, CO₂, CO, H₂, CH₄, combustibles, hydrocarbons, NO_x, helium, SF₆, trace O₂, RH, dew point, argon, HF, CL₂, NH₃, etc.
• Special Purpose Portables - CO, CO₂ and O₂, H₂ purity, argon, SF₆, trace O₂, etc.
• Heat Treating Atmospheres Analyzers - O₂, CO, CO₂, H₂, CH₄, NH₃ and dew point.
• Agricultural Use Analyzers - O₂, CO₂ and ammonia for greenhouses, mushroom farms, C/A storage and grain silos.
• Indoor Air Quality MonitorsO₂, CO₂, CO, RH, temperature and dew point.
• Landfill Sites
  Dual gas oxygen and methane analyzer for monitoring recovered gases from a landfill site.
• Power Industry Analyzers
  SF₆, flue gas, H₂ purity and purge monitoring for generators.
• Personnel Safety Monitors
  O₂ deficiency, CO, CO₂, NH₃, SO₂, H₂S, NO, NO₂, CL₂ and HF.
• Steel Making Industry Analyzers
  Blast furnace top gas, BFG and COG BTU, stove flue gas, annealing, galv line, soaking pits, melt shop furnaces, electric arc furnaces, CO monitoring systems, oxygen plant analyzers, etc.
• Oxygen Analyzers
  Used to measure either PPM or % oxygen levels in many process applications.

About Nova Analytical Systems Inc.

Nova Analytical Systems Inc. has been designing and manufacturing gas and water analysis equipment for industry since 1976. Now with sales spanning worldwide, NOVA is rapidly becoming a key player in the global market of monitors and analyzers. NOVA strives to manufacture top quality products, provide excellent, prompt service to all of their customers and stay on the leading edge of the technological environment to help improve their customers' satisfaction and their own growth.

Today, there are a variety of sensors used to detect flammable gases. There are also many different flammable conditions, each requiring a specific type of sensor to be accurately measured. When selecting a flammable gas monitor, it is critical that you understand the differences and choose the appropriate sensor for the environment to be measured.

LEL and UEL Ranges

The familiar "fire triangle" advises us that three things are needed to support a fire or explosion:

• Source of fuel (e.g. flammable gas or vapor)
• Air (oxygen)
• Source of ignition (e.g. spark, open flame, or high temperature surface)

Many commonly encountered gases and vapors (natural gas, methane, propane, hydrogen, alcohols, etc.) are flammable within a range of concentration known as the explosive or flammable range. This range is defined by the lower explosive limit (LEL) and upper explosive limit (UEL) and is different for each flammable gas. For methane, the LEL and UEL in air are 5.0 % and 15.0 % by volume, respectively [NFPA reference]. At concentrations below the LEL, the mixture is too lean (insufficient fuel with respect to oxygen) to sustain combustion, and at concentrations above the UEL, the mixture is too rich (too much fuel with respect to oxygen) to sustain combustion.

Safety instruments using catalytic bead type sensors are intended for use below the LEL, and typically scaled from 0-100 % LEL. This means that the full-scale indication on the monitor is the minimum concentration that could sustain combustion.

Monitoring Above the LEL Range

While most safety-related instruments focus on the sub-LEL range, there are many applications or industries where it is necessary to measure concentrations of flammable gases and vapors above the LEL. For instance, a utility company trying to pinpoint a gas leak may subject its leak detector to concentrations far above the LEL. Another common application is in landfills, where inspection wells are monitored to track the condition of the landfill or to verify that methane produced in the fill is not migrating off site. In monitoring of these inspection wells, concentrations of methane can be well above the LEL or even above the UEL and are often deficient in oxygen.

For these situations, a catalytic bead type LEL range detector is not suitable, and can indicate dangerously low false readings. Remember, the catalytic bead type sensor must "burn" the gas on the surface of the bead. If the mixture is above the UEL (too rich), the instrument may actually indicate a very low reading or no reading due to insufficient oxygen. In addition, subjecting a catalytic bead sensor to very high gas concentrations can result in damage to the sensor, including loss of sensitivity that can also produce erroneously low readings. For applications of this type, where very high gas concentrations may be encountered, the most commonly used method of detection is thermal conductivity (TC).

Thermal Conductivity

A thermal conductivity detector is based on the principle that gases differ in their ability to conduct heat.

A TC detector will consist of two elements, typically a pair of wires (filament) or thermistors that are heated above ambient temperature. One of the elements (active) is exposed to the gas sample to be measured, and the second element (reference) is exposed to a reference gas (typically air for this type of instrument).

If the sample gas has a different thermal conductivity as compared to the reference gas, the temperature of the active filament will change as compared to the reference element. As with the catalytic bead type sensor, the resultant temperature change results in a resistance change that is measured with a Wheatstone bridge circuit to produce a digital reading proportional to the gas concentration.

The TC sensor can be used for a variety of gases, and does not require oxygen to operate. Because the thermal conductivity of different gases as compared to air can vary widely, and be either positive or negative in direction, the thermal conductivity detector must be tuned or calibrated for a specific gas or vapor. The most notable advantage of the TC type detector is it's ability to detect concentrations of flammable gases and vapors up to 100 % by volume, well above LEL and UEL ranges.

GX-2003 - Unique 5 in 1 Sensor Packaging

In the past, you may have had to buy a separate instrument in order to obtain each of these sensor types. Fortunately, RKI has developed the GX-2003, which includes both catalytic bead and thermal conductivity sensors, and will automatically switch from a % LEL to a % Volume range.

Most competitive instruments with dual range combustible capability do not have the sophistication to automatically select the appropriate sensor to use based on the gas concentration being encountered. If the instrument does not autorange like the GX-2003, then the user must manually select the range to be monitored, which may require extra precautions to ensure that the readings are accurate or to avoid damaging the catalytic bead sensor. When the GX-2003 detects high levels of methane, the display will dynamically change from the % LEL to the % Volume range. At the same time the catalytic sensor is protected from being exposed to a concentrated sample that is well over scale. This autoranging combustible capability provides users with the flexibility to do general-purpose safety monitoring as well as detection of very high levels of flammable gases and vapors without any extra precautions or procedures.