Industrial Wastewater Solutions
Scope of application:
●Various electroplating wastewater treatment, including cyanide-containing wastewater, chromium (Cr), copper (Cu), zinc (Zn), nickel (Ni), cadmium (Cd) and other single, mixed heavy metal wastewater;
●PCB circuit board wastewater treatment;
●Other wastewater containing heavy metals.
Technical principle:
The device takes the functional nano-ceramic membrane as the core element, uses the nano-pore filtration technology on the surface of the ceramic membrane, and the binding force of the nano-pore electric double layer in the membrane to intercept heavy metals, and uses a unique operation mode to slow down the blockage of the membrane. The treatment process does not add iron, aluminum and other flocculants and PAM and other polymer coagulants, the sludge produced by the high content of heavy metals, easy to dewater, can be directly recycled.
Product advantages:
●Without adding flocculant and coagulant aid, the metal content in the sludge is high, which is conducive to the recycling of resources;
●Copper (Cu), nickel (Ni), chromium (Cr), zinc (Zn), cadmium (Cd) and other heavy metal mixed sewage treatment;
●The heavy metal content of the effluent reaches the standard of Table 3, and the operation is stable and reliable;
●The use of functional nano ceramic membrane, the service life of more than 20 years; integrated equipment, automatic control, remote monitoring;
●Advanced technology, high efficiency, small footprint.
An electroplating wastewater treatment station in Xinxiang, Henan (240 m3/d, including integrated wastewater treatment)
An electroplating wastewater treatment station in Yangzhou (660 m3/d )
Area of MNR-M integrated heavy metal wastewater treatment equipment
| No. | Treatment scale [m3/d] | MNR process footprint [m2] |
| 1 | 50 | 24 |
| 2 | 100 | 27 |
| 3 | 150 | 30 |
| 4 | 200 | 52 |
| 5 | 300 | 60 |
| 6 | 500 | 100 |
Comparison of MNR-M Process and Traditional Process Technology
| Project | traditional treatment process | MNR process |
| Outlet water quality | Unstable, difficult to meet new standards | Stable to new standards |
| Reuse difficulty | Add PAM, difficult to reuse | Easy to reuse |
| Operating expenses | A | 50~70%A |
| Land occupation | B | 30~50%B |
| labor intensity | High | Low, unattended operation |
| Sludge condition | C, difficult resources | 30 ~ 40% C, easy to resource |
Comparison of Resource Utilization between MNR-M Process and Traditional Process
| Serial Number | Project | Traditional treatment process sludge | MNR process sludge | ||
| Content [mg/kg] | Dry weight [%] | Content [mg/kg] | Dry weight [%] | ||
| 1 | Fe | 71670 | 7.17 | 51095 | 5.11 |
| 2 | Cu | 14420 | 1.44 | 47575 | 4.76 |
| 3 | Zn | 57515 | 5.75 | 97920 | 9.79 |
| 4 | Ni | 57030 | 5.70 | 109620 | 10.96 |
| 5 | Cr | 39570 | 3.96 | 72140 | 7.21 |
Comparison of effluent results between MNR-M treatment process and traditional treatment process
| Serial Number | Project | integrated wastewater | Effluent from traditional treatment process | MNR effluent | Emission standards | ||
| Table 3 | Table 2 | Table 1 | |||||
| 1 | None [mg/L] | 200.5 | 0.38 | 0.031 | 0.1 | 0.5 | 1 |
| 2 | With [mg/L] | 184.6 | 0.37 | 0.133 | 0.3 | 0.5 | 1 |
| 3 | Cr [mg/L] | 84.35 | 0.783 | 0.15 | 0.5 | 1 | 1.5 |
| 4 | Zn [mg/L] | 76.8 | 0.076 | 0.085 | 1 | 1.5 | 2 |