1. Home
  2. ⏚ Electrical Engineering
  3. Sludge Blanket Levels?

Sludge Blanket Levels?

Has anyone had success in measuring sludge blanket levels in Picket Fence Thickeners as used in the waste water industry? I have tried single point level detection using light, very little success with this, and quite often the sensor gets caught in the rake. I am now using ultrasonic and getting better results. This way I get a continuous level measurement. However, blanket level detection is sometimes unreliable. Is there anything better I should consider for this application? TIA

Reply to
BIGEYE
Loading thread data ...

I've asked the staff at my local sewerage authority if that have a suggestion for you. I'll forward a response if it's pertinent.

Jerry

Reply to
Jerry Avins

All the plants I've seen use ultrasonic. Hawk

formatting link
make a range of ultrasonic level transmitters for waste-water applications and they're very easy to set up and pretty reliable.

Another option is something from Drexelbrook. They have a wide range of contact-type magnetostrictive transmitters which can discriminate between the blanket and the water underneath and it might be worth talking to one of their reps..

HTH, Cameron:-)

Reply to
Cameron Dorrough

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.