The invention discloses a
zero emission online circulation
treatment system for
electroplated nickel containing waste water. The
system comprises an early-stage pretreatment
system, a filter
permeation system and an
evaporation concentration system, the early-stage pretreatment system comprises a
raw water pool(1), a boosting pump(2), a
membrane bioreactor (MBR) membrane treatment device (3), a bag-type filter (4), an oil removing filter(5) and a
cartridge filter (6), the filter
permeation system comprises an
ultrafiltration device (7), a first
high pressure pump (8), a first-stage inverse
permeation unit (9), a first-stage middle water tank (10), a second
high pressure pump (11), a second-stage inverse permeation unit (12) and a
high concentration nickel water collection tank (13), and the
evaporation concentration system comprises a
solar water heater (14), an electric heater (15), a
hot water storage tank (16), a circulation pump (17), a trapezoidal multi-effect
evaporation tower (18) and an ultrahigh concentration
nickel water collection tank (19). The
zero emission online circulation
treatment system for the
electroplated nickel containing waste water has the advantages that the nature of complete set of equipment is good, the
automation degree is high, the
recovery rate for
nickel can reach to 99.98%, the water
reuse rate can reach to 100%, the secondary
pollution is prevented, the
zero emission of the
electroplated nickel containing waste water can be thoroughly achieved, and the system has an important significance for
sustainable development of the
electroplating industry.