The invention discloses a
wastewater treatment system and a
wastewater treatment method based on photoelectric Fenton-biological enhancement. The
system comprises a preaeration tank (1), a photoelectric Fenton reactor (2), a degassing neutralizing tank (3), a coagulative
precipitation tank (4), an adjustment tank (5), a microencapsulation biological
fluidized bed (6) and an immobilization biological
active carbon bed (7) which are connected in sequence through water pipes. The photoelectric Fenton-biological enhancement-based
wastewater treatment system is reasonable in structural design, convenient to operate, high in working efficiency, low in cost and good in wastewater
treatment effect and orderly, and organically combines physical and
chemical treatment, biochemical treatment and guarantee treatment; the photoelectric Fenton reactor, the microencapsulation biological
fluidized bed and the immobilization biological
active carbon bed support and promote one another functionally, so that the removal efficiency for
refractory characteristic organic pollutants is over 98 percent, the
sludge yield is low, the
sludge treatment cost is low, the
sewage treatment effect is good, and the wastewater
treatment system based on photoelectric Fenton-biological enhancement has important significance for
environmental protection.