Practical case of electroplating wastewater treatment system for 900 T/D at Heyuan Water Industrial Park.The water production quality：achieve the water quality standard for urban miscellaneous water consumption（GB18920-2002）

1. Electroplating wastewater treatment
--- Case study

2. About Electroplating Wastewater
• Electroplating wastewater comes from surface plating operations
where the metal is dipped in an electroplating solution of various types
of metals and then rinsed.
• Typical plating includes brass, nickel, cadmium, zinc, silver, copper,
and gold. Electroplating wastewater is typically from washing, rinsing
and batch dumps and is at a low pH of ~3-5 and contains soluble forms
of the various metals. In order to remove soluble metals from the
wastewater it must first be made insoluble. The insoluble metal is then
coagulated, flocculated and clarified by sedimentation.
• The typical method to reduce and remove soluble electroplating metals
from wastewater is as follows:

3. Practical Case

4. Basic Info
•Project ： 900TPD waste water reuse system for Heyuan
Water Industrial Park
•Capacity ： 900m³/d
•Feed water type ： electroplating wastewater
•Product water quality ： achieve the water quality standard
for urban miscellaneous water consumption （ GB18920-2002 ）

5. Water quality standard
No. item unit Discharge standard
1 PH - 6-9
2 Cr6+ mg/L 0.05
3 Total Cr mg/L 0.1
4 Total Cu mg/L 0.5
5 Total Ni mg/L 0.05
6 Total Zn mg/L 1.0
7 Total Fe mg/L 10
8 cyanide mg/L 0.5
9 CODcr mg/L 20
10 SS mg/L 10
11 conductivity μm/cm 300

6. Process decription
This zero liquid discharge water reuse project has been completed in a
pharmaceutical company in Inner Mongolia, which is the largest in the
use of MFT super RO membrane, recovery rate goes up to 90%. The
wastewater consists of penicillin pharmaceutical wastewater, water
system brine, recycled water drainage and biological effluent water. The
project has been commissioned in December 2014 and under normal
operation ever since, treating 6300 tons of wastewater per day. The
entire treatment process use more than one thousand membranes
including UF membrane, spiral wound RO membrane and super RO
membrane.

7. Process

8. On-site Photos

10. Thank You
Contact info
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