水处理

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.

1
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