1. Pure water from RO system Reuse to manufacturing
Waste water treatment & gray water recycle flow chart
Activated sludge tank
Regulating tank
Sedimentation 
tank UF
UF system outlet
Anaerobic
Intermediate tank
RO machines
Pure water from RO system
Reuse to manufacturing
High concentration wastewater from RO system
Floatation 
Discharged under the limit
Discharged under the limit
Water storage for next process
Contact oxidation
Secondary sedimentation tank

2. Waste water treatment & gray water recycle flow chart
Workshops’ wastewater discharged into the collecting tank.
Up to the regulating tank for blending by pumps .
Collecting tank
Regulating tank
Flow chart-1

3. Waste water treatment & gray water recycle flow chart
To degradate the COD by aerobes , that will take twenty-four hours .
Flow chart-2
Anaerobic Tank

4. Waste water treatment & gray water recycle flow chart
Degradation by aerobes will be discharged into it for sedimentation.
For secondary sedimentation .
Secondary sedimentation tank
Sedimentation tank
Flow chart-3

5. Effluent of floatation
Waste water treatment & gray water recycle flow chart
Up to the floatation tank from the secondary sedimentation tank by pumps ，and adding PAC+PAM.
A part of the wastewater discharged under the limit;
A part of the wastewater for recycle.
Floatation  tank
Effluent of floatation
Flow chart-4

6. Electric conductivity Electric conductivity
Waste water treatment & gray water recycle flow chart
A part for recycle input intermediate tank
Sand filter
Flow chart-5
Amount of water
CMD
COD
＜100ppm SS
30-50ppm
Electric conductivity
1500us/cm
Amount of water
CMD
COD
＜100ppm SS
＜30ppm
Electric conductivity
1500us/cm

7. Electric conductivity electric conductivity
Waste water treatment & gray water recycle flow chart
Ultrafiltration
Reverse Osmosis
Flow chart-6
Amount of water
CMD
COD
＜100ppm SS
＜1ppm
Electric conductivity
1200us/cm
Hardness
≤10ppm
 Ferric icon
≤0.05ppm PH
electric conductivity
≤400us/cm