Frequently Asked Questions

 

Project

Q: Can I receive my submittals and or O&M’s electronically?

A: Yes. Simply email us your request and we can send you an electronic version.

Q: How soon will I get submittals?

A: Submittals will typically be delivered four (4) weeks after receipt of your purchase order. For short lead time projects, submittals can be provided sooner. We request that you specify any special requirements regarding submittal and equipment delivery in the purchase order.

Q: How can I track my order?

A: Our Project Management Department would be happy to help. You can reach them at 856-258-6969 x113

Q: I have questions about the installation process.  Whom can I call?

A: All questions prior to equipment shipment should be directed to the BioAir Project Manager at 856-258-6969 x113. For questions after equipment delivery, please contact our Service Department at x111.

Q: What rigging equipment will I need to offload and install my BioAir equipment when it arrives?

A: Your submittal will detail the size and weight of each piece of equipment to be delivered for your project. Larger systems will typically require a three (3) point lift using a crane. If you have additional questions, please give our Service Department a call at 856-258-6969 x111.

Q: What is the anchor bolting arrangement for the system?

A: Reactor vessels are typically bolted to a pre-poured concrete pad using epoxy-type anchors. The General Arrangement Drawing for the equipment (found in your submittal document) gives details on the number, size and placement of the anchor-bolts.

Q: Is the reactor a single piece or multiple piece configuration?

A: All reactors are delivered in a minimum of two (2) pieces – the base piece and a top piece. Some systems will have either one (1) or two (2) additional modules but the construction is such that once the base piece is in place on the concrete pad, any additional modules and the top piece are simply placed on top of, and bolted down to, the component below.

Mechanical

Q: What options are available for vessel material?

A: Currently our vessels are Fiberglass Reinforced Plastic (FRP). HDPE is available fore the EPM-series vessels, and may be available in the future for some of the smaller systems. Please contact our Sales Department at 856-258-6969 x110 for more information

Q: What options are available for vessel color?

A: The standard BioAir reactor color is Base White (CCP W005). Other colors from the RAL or CCP color charts are available, but are not typically included in our quote. For more information, please contact BioAir’s Sales Department at 856-258-6969 x110.

Q: Are the reactor vessels insulated?

A: BioAir reactors to not require insulation. Even for systems installed in fairly harsh winter conditions, the relatively warm air passing through the vessel for a short period of time does not experience much temperature loss; thus eliminating the need for insulation.

Q: Will the spray nozzle need cleaning? How do I get to it?

A: It is very rare that your spray nozzle will require cleaning. The nozzles are designed with an open flow path and a strainer in the water cabinet to catch any particulate material. As long as the strainer remains in place and is regularly checked for blockages, it is unlikely that you will ever need to clean the spray nozzle.

If absolutely necessary, however, your spray nozzles can easily be accessed through the inspection port located on the top of the reactor.

Q: How do I order spare strainers?

A: Spare strainers, as well as other spare parts and replacement nutrients, may be ordered directly from the BioAir Solutions main office or by clicking on the Support tab of this website. A PDF order form may be downloaded, completed, and returned via email, fax or mail to our Service Department.

Q: What is the wind and seismic load rating of the reactor vessels?

A: Wind Load: 140 MPH

Seismic Zone: 1 (Seismic Zone 4 is available where necessary)

Electrical & PLC

Q: What are the voltage and power requirements for my BioAir system?

A: Most electrical control panels are designed for 480/3/60, 30A power supply. Internal transformers will supply the required control voltages. Certain systems, i.e. the EcoPure Mini, may be designed for 230/1/60, 20A power supply.

Q: I want to put a power outlet in the control panel, can BioAir provide that?

A: All BioAir control panels come with a standard 120/1/60, 2A convenience outlet. The outlet is rated for 2A, and therefore should only be used to power small electrical devices like a laptop computer or battery charger. If your project requires an outlet with a larger capacity, please specify this requirement in your Request For Quotation (RFQ) or project Specifications.

Q: What are the cables running from the Water Panel to the Electrical Panel? What is the voltage?

A: Electrical cables running between the Water Panel and the Electrical Control Panel are instrumentation and control wires. These are either 120 VAC and 24 VDC..

Q: Can I get a copy of the PLC program?

A: BioAir can supply a comment-free version of the PLC program upon request, for maintenance purposes in the event of a PLC replacement.

Q: I think my PLC has an error. Whom should I call?

A: Please contact the Service Department at 856-258-6969 x111. We will work with you to diagnose and correct the problem.

Q: I think my PLC has blown.  How do I replace it?

A: Please contact the Service Department at 856-258-6969 x111 to assist you in determining the best course of action.

If your plant has a spare PLC or your PLC model can be purchased locally, and you have the ability to perform program downloads on the PLC, using a locally available PLC would be the fastest course of action for repair. BioAir can email the program to your Plant’s system integrator. BioAir can also send a PLC with a pre-loaded program so that you can replace it on site. Any PLC replacement will require removal of the existing PLC and reinstallation of PLC wiring by a qualified person.

Q: Is the vessel heat-traced?

A: BioAir systems do not require heat-tracing. Even for systems installed in fairly harsh winter conditions, the relative warm water and air passing through the vessel for a relatively short period of time does not experience much temperature loss; thus eliminating the need for insulation.

Q: How do I order spare Fuses?

A: Spare fuses (and any other spare parts) may be ordered directly from the BioAir Solutions main office or by clicking on the Support tab of this website. A PDF order form may be downloaded, completed, and returned via email, fax or mail to the Service Department.

Instrumentation

Q: What instrumentation is supplied with my BioAir system?

A: BioAir systems are engineered for simplicity and minimum maintenance. It is typical to monitor irrigation water flow and to provide an alarm status for HIGH FLOW, LOW FLOW and UNEXPECTED FLOW. In addition, if applicable, LOW NUTRIENT FLOW is also monitored.

Q: Can I add additional instrumentation to a system that is already installed and running?

A: Instrumentation may be added, but to avoid voiding the manufacturer’s warranty, we recommend that the BioAir Service Department perform instrumentation additions. If you have a questions, give us a call and discuss your thoughts with us at 856-258-6969 x111.

Q: Can I control my irrigation system using a pH probe?

A: Yes, but it is not recommended. While pH is one indicator of biological activity within the system, the control of pH is not typically critical to the performance of the system and there is no benefit to a feedback-controlled system. It should also be noted that most pH probes are designed for use in fairly clean process water, and will quickly become inaccurate and maintenance-intensive in a biotrickling filter drain water application. In fact, with a control system based on a pH probe, if the pH probe were to fail or lose accuracy, data fed back to the control system would be unreliable, and the performance of the system could be very seriously affected.

Process

Q: How does a biotrickling filter remove hydrogen sulfide and organic odors?

A: The hydrogen sulfide and organic odor compound are transferred from the odorous air to the bacteria growing on the synthetic EcoBase media inside the reactor. The autotrophic bacteria then oxidizes (metabolize) the hydrogen sulfide and heterotrophic bacteria oxidizes the organic odorous compounds. The following simplified reactions occur:

Sulfide oxidization:
H2S + 2O2 ⇒ H2SO4

Organic odors oxidation:
Organic odors and/or VOCs + O2 ⇒ CO2

The by-products of sulfide oxidation is sulfuric acid which is removed from the reactor with the spray water, whereas the by-product of organic odors and/or VOC oxidation is primarily carbon dioxide which is removed from the reactor through the exhaust air.

Q: How does a biotrickling filter remove other compounds – say, methyl mercaptan, DMS?

A: Methyl mercaptan and dimethyl sulfide (DMS) are organic reduced sulfur compounds and are oxidized by heterotrophic bacteria as described above. It is important to note that the autotrophic bacteria grow under different pH and process conditions than heterotrophic bacteria; thus, the system should be designed to accommodate both these bacterial groups in different media “zones” to allow for a well-functioning, and optimally-performing system.

Q: Can a biotrickling filter remove ammonia?

A: Yes, biotrickling filters are very effective in removing ammonia (NH3) from odorous air streams. This is achieved through the primary processes of biological oxidation of NH3 to nitrate (NO3) and scrubbing. For air streams that contain hydrogen sulfide, the sulfide is oxidized to sulfate, thus reducing the water pH and increasing the solubility and removal of ammonia through the irrigation water.

Q: What are the maximum and minimum temperatures for a BioAir system?

A: The standard operating temperature range for the bacteria that treat the odor is 60°F to 100°F, but good performance can still be achieved outside of this range. If you have questions about the potential effects of temperature on your particular application, please give our Process Group a call at 856-258-6969 x116.

Q: What happens if my inlet odor levels increase?

A: Inlet odor and H2S concentrations frequently fluctuate as a result of air temperature, time of day, and other changing factors. Over time, the bacterial populations in the media will grow to handle these fluctuations, provided that they are not too extreme and that the overall loading is not too high.

Although performance guarantees are given for the specified design conditions, in the event of an overall increase in the odor or H2S levels, it is very likely that they will be treated at or near the desired performance levels.

If a long term increase in odor or H2S concentration is expected and a guaranteed removal efficiency is required at the higher–than-design concentrations, contact BioAir’s Process Group at 856-258-6969 x114 to help you determine the best course of action. Because BioAir’s systems are modular, a system expansion will likely be possible with minimal cost and difficulty.

Q: Can we use plant effluent for irrigation of the biotrickling filter?

A: Plant effluent water is preferred for irrigation purposes. There are certain quality requirements to ensure that the water is suitable for the bacteria and process control system. Please contact our Process Group at 856-258-6969 x114 for more information.

Q: We remove nitrogen and phosphorus from our effluent prior to discharge. Can I still use the final effluent for irrigation of my biotrickling filter?

A: The bacteria require both macro- and micronutrients to grow. Macro nutrients include compounds like nitrogen, phosphorous and potassium and micro nutrients include compounds such as copper, manganese, molybdenum and many more. Normally, final effluent water contains sufficient macro- and micronutrient to meet the minimal bacterial requirements. In the event that the effluent is deficient in either macro or micronutrients, supplemental nutrients could be added to the effluent to be used as irrigation water. If you have questions regarding the suitability of your final effluent water for irrigation purposes or if you need supplemental nutrients, please call our Process Group at 856-258-6969 x114.

Q: Will the spray nozzle need cleaning? How do I get to it?

A: It is very rare that your spray nozzle will require cleaning. The nozzles are designed with an open flow path and a strainer in the water cabinet to catch any particulate material. As long as the strainer remains in place and is regularly checked for blockages, it is unlikely that you will ever need to clean the spray nozzle.

If absolutely necessary, however, your spray nozzles can easily be accessed through the inspection port located on the top of the reactor.

Operation & Maintenence

Q: Will the spray nozzle need cleaning? How do I get to it?

A: It is very rare that your spray nozzle will require cleaning. The nozzles are designed with an open flow path and a strainer in the water cabinet to catch any particulate material. As long as the strainer remains in place and is regularly checked for blockages, it is unlikely that you will ever need to clean the spray nozzle.

If absolutely necessary, however, your spray nozzles can easily be accessed through the inspection port located on the top of the reactor.

Q: How often should I clean the strainer in the Water Panel?

A: The cleaning frequency very much depends on the amount of solids that need to be removed from the water. Typical cleaning frequencies vary between one (1) week and one (1) month.

Q: Do I need to backwash the filter media?

A: No, the BioAir media does not require any backwash.

Q: How long will the filter media last?

A: The BioAir filter media is guaranteed for five (5) years, although it is expected to last in excess of fifteen (15) years. Longer warranty periods are available for purchase.

Q: Can I use Miracle Gro as nutrients?

A: BioAir recommends that our proprietary EcoGrow nutrients be used for all BioAir installation where additional nutrients are recommended. EcoGrow nutrients contains a carefully designed mix of macro and mirco nutrients to provide for nutrient “cocktail” for optimum bacterial and process performance, and for a sustainable long term process. Use of 3rd party nutrients may cause a chemical imbalance and void the process warranty on your BioAir system.

Q: How do I order spare parts?

A: Spare strainers (other spare parts and replacement nutrients) may be ordered directly from the BioAir Solutions main office or by clicking on the Support tab of this website. A PDF order form may be downloaded, completed, and returned via email, fax or mail to the Service Department.