BACKGROUND INFORMATION
Client Company A was using a condensing equipment to condense to approximately 1/5th volume, about 6000t/year of plating wastewater. Costs for the disposal of the remaining 1200 tons of condensed waste were about 36,000,000 Japanese Yen per year. (About $300,000 USD*.)

CLIENT'S NEEDS
Client Company A wanted to further reduce disposal costs by drying their remaining waste.


RESULTS AFTER APPLICATION OF CD DRYER
The client continues to use the condensing equipment to condense the waste to 1/3 original volume, then uses a Nishimura Works CD-908 Dryer to dry the remainder before disposal. The dried waste amounts to a mere 25 tons per year, a reduction to only 0.4% of the original wastewater volume.
Disposal costs have likewise been dramatically reduced to only 760,000 Japanese Yen (about $6,300 USD*) per year, a 98% savings.

  Before Application   After Application  Rate of Reduction 
Wastewater
Amount 
6000 tons per year  -- 
Remaining Amount of Industrial Waste   1200 tons per year  25 tons per year   1/50
Costs For Final
Waste Disposal 
 36 million JPY per year
(about $300,000 USD*)
760,000 JPY per year
(about $6300 USD*) 
1/50 

* based on an exchange rate of 1 US Dollar = 120 Japanese Yen



BACKGROUND INFORMATION
As a precious metal recovery company, Client Company B processes scrap metal in various forms. Through their processes, about 10 tons of Copper Nitrate-containing wastewater is produced daily. Before installing a Nishimura Works CD Dryer, this wastewater (wet base 84%) was processed by pressing, leaving copper nitrate with an approximately 60% moisture content. This copper nitrate was then disposed of as industrial waste.

CLIENT'S NEEDS
Client Company B was looking for a way to make their copper nitrate remains fit for sale.


RESULTS AFTER APPLICATION OF CD DRYER
Using CD Dryers, the client is able to produce copper nitrate with a 20% moisture content. This powdered copper nitrate is then sold to a mining company, where it is further processed to recover the copper. After introduction of the CD Dryers, the client was able to turn former waste into a valuable resource, which generates an income of 5 million JPY (about $42,000 USD*) per year, and in the process, was able to achieve zero emission at their plant.



   Using a Press Using a CD Dryer 
Dried Material Moisture Content
84% Wet Base (W.B.) start 
60% W.B.  20% W.B.
Running & Disposal Costs
(per year)
90 million JPY
(about $750,000 USD*) 
 30 million JPY
(about $250,000 USD*
)
 Merits  -- 5 million JPY in sales
@ (about $42,000 USD*)
Zero Emission Achieved

* based on an exchange rate of 1 US Dollar = 120 Japanese Yen