Heat Pump Vs Boiler

[sspence]

I have existing boilers at my WasteWater plant but came across an article that utilizes Heat pumps to extract the heat from the Effluent water (~75degF) to heat the processes (need ~135DegF).
Ideally I would like to eliminate the boilers and used the Heat pumps (with a COP >4). Knowing my electric useage would go up AND reducing my gas useage, where would I find more information on utilizing Heat pumps for heat recovery?

Any additional comments?
I have my reasons to turn off the boilers so don't try to convince me to leave them on, I want to know about what options I have on Heat Recovery.

 

[sathanasiou]

How about gas fired absorption heat pumps? Try the following links:

http://www.robur.com

http://www.broad.com