FAQs

• Hydro-Sonic scrubbers work on any process that is suitable for wet scrubbers. We may have test data for a process similar to yours that will demonstrate the scrubber performance. We can also perform a test with a portable Hydro-Sonic Scrubber.

How do Hydro-Sonic Scrubbers compare to Venturi Scrubbers?

• Hydro-Sonic wet scrubbers outperform Venturi Scrubbers for very fine particulates (< 1 µm).  The performance is similar to that of Venturi Scrubbers for large particles (> 2.5 µm).   A case history demonstrating the superior performance of a Hydro-Sonic Tandem Nozzle wet scrubber for very fine particles is found here. 

What is the lead time for a scrubber?

• The lead time from purchase order placement to shipment varies with the size and complexity of the project. We have delivered equipment in as little as 3 weeks and as long as 28 weeks.  A typical project would be 8 to 10 weeks.  Contact us for more information.

What materials are the scrubbers made from?

• The materials are selected to suit the needs of the process. If you have a preference, we can use the material you prefer. Our most common material is fiberglass reinforced plastic (FRP). We have also provided scrubbers made out of various metals and alloys.

What are the typical maintenance requirements for a Hydro-Sonic Scrubber?

• There is very little maintenance required for Hydro-Sonic scrubbers. Most designs have no moving parts. The most common maintenance required is clearing clogged spray nozzles. If the water circulated through the unit is not adequately filtered, the spray nozzles can become clogged. A yearly downtime inspection is typically sufficient to keep the scrubber operational.

Do the Hydro-Sonic Scrubbers meet MACT and other emissions requirements?

• Hydro-Sonic Scrubbers are used on many processes requiring MACT standards. We have even provided scrubbers to meet the very difficult radioactive waste standards. 

How do Hydro-Sonic Scrubbers handle reduced gas flows or turndown?

• The most common Hydro-Sonic Scrubbers have fixed gas flow nozzles, which are very good for steady state gas flow. However, most processes are not steady state and turndown is required. Since the scrubber pressure-drop (and therefore emissions reduction performance) varies with the square of the gas flow rate, turndown schemes are required. In some applications, gas from the fan outlet can be recirculated back to the scrubber inlet, thereby maintaining a constant gas flow through the scrubber. Variable area gas flow nozzles can also be used in the scrubber. A Hydro-Sonic Super-Sub can also be used to maintain scrubbing efficiency during turndown conditions. There are other methods, but these are the ones most often used.
  
  Hydro-Sonic Steam-Hydro Scrubbers have full turndown capability without modifications.