Enia Carpets manufactures and dyes carpets.  The production of the latex covering on the back of the carpets requires cleaning the production tanks, mixing, and adhering the latex to the carpets, and each step generates waste water.  Dye waste water is produced by the rinsing stage and by cleaning the tanks.
 
The waste water from both processes is stored separately in large tanks.  After the quality of both types of waste water has been homogenized, it is pumped automatically into the treatment reactor.  While the agitators are running, ferric chloride, lime milk and flocculant are automatically dosed.  The impurities are joined in filterable solids and form a sediment after the agitator has been turned off.  After a final pH test, the resulting clear water is discharged.
 
A chamber filter press compresses the sediment sludge into filter cake.

Capacity	12,5 m3/batch
Solids content	2 - 8 %
Temperature of latex waste water	20 °C
Temperature of dye waste water	90 °C

Space requirements	50 m2 over 2 stories
Energy consumption	1 kWh/m3
Material of construction	PP
Control	Siemens S7 PLC
Filter press volme	416 l
Filter press system	automatic plate transport

Plant engineering and Sales
plants.engineering(at)envirochemie.com
Tel: +49 (0) 61 54 / 69 98 - 0