Please describe the fall-off of effectiveness over time.

This is a new plant commisioned in Dec 2008. It is observed that lot of scaling and corsion in parts of pipelines and heatexchangers ue to high flourides in the effuluent

If there is scaling heat transfer will decrease. So does the heat input. The efficiency in terms of energy may not change. Only the throughput will come down.

The other problem may be that evaporation will lead to accumulation of contaminants (Fluorides?) in the bottoms, which can accelerate corrosion.

bioramani

Thank u Mr Ramani for your comments

L.Ramamurthy,

Let me know where is your plant placed. Added to the valuable suggestions of Pwslack and Bioiramani, I would like to ask for more details.

* What is the nature of your effluent water, in terms of type of industry, organic,inorganic contents, pH , TDS levels etc. Do you directly evaporate without neutralizing?

*Is the effluent viscous?

*You are using direct steam out put from boiler for evaporation or combined with production- possible pressure drops.

* What is your boiler fuel.

More the inputs we can sort out collectively.

Dear Mr Active member,

-The effuluent is coffee Effuluent.

- PH 7.

- TDS levels at effecct 1 - 35000

effect 2 - 100000

effect 3 - 500000 and direct discharge to solor evoperation pond.

-The effuluent is Viscous

- Steam line is provoided with Pressure regulating station.

Thanks and regards

L.Ramamurthy

For a similar application with tea, we used a simple shell and tube heat exchanger and a large spray pond where we arranged a grid of polypropylene shower heads. The heated effluent was sprayed down from a height of about 3 meters above the liquid level. The tea estate had considerable prevailing wind through the year. We got excellent concentration with minimal equipment and low maintenance.The pond fluid was recirculated continuously.

By covering the (separate) solar pond we could achieve an evaporation rate of about 5 ltrs/sq.mtr/normal day in South India.

bioramani

Dear Mr.ramani,

Is it possible to share moreproject details like vendor for shower heads etc.

Thankfully your,s

L.Ramamurthy.

Polypropylene shower heads are available from metroplastech, Coimbatore:

http://metroplastech.com/bathroomaccessories.html

I have sent a msg on your msg board.

bioramani

necesitas una bomba de vacio para bajar la presion y aumentar la eficiencia de de evaporacion