Patent ID: 11926549
Assignee: GUANGXI BOSSCO ENVIRONMENTAL PROTECTION AGENCY
Field: Environmental technology (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. An up-flow enhanced multiphase oxidation wastewater treatment method, comprising the following operation:
feeding refractory organic wastewater to an up-flow multiphase wastewater oxidation unit, wherein the up-flow multiphase wastewater oxidation unit is previously added a given mass of heterogeneous catalyzer carrier, and being added with Fenton agent and homogeneous catalyzer carrier;
sending an oxidation tower effluent water to a solid-liquid separation unit for solid-liquid separation,
discharging a catalyzer carrier from the bottom of the separation unit and returned to the oxidation tower to achieve catalyzer enrichment, and subsequently flowing water from top of the separation unit to a neutralization degassing process;
executing the neutralization degassing process by a neutralization unit and an aeration unit, wherein the executing the neutralization degassing process comprising
adjusting, by the neutralization unit, wastewater pH to 5.5 to 7.0 by mixing with alkali, and
inputting, by the aeration unit, the gas into the wastewater to degassing volatile organic components, wherein the gas being inserted into wastewater from bottom of the neutralization unit and the aeration unit contains 1% to 10% mass concentration ozone for aeration, stirring, and gas stripping; and

after executing the neutralization degassing process, flowing the wastewater into a sedimentation unit for sludge-water separation, and discharging clean water from top of sedimentation unit and discharging iron sludge discharged from bottom of the sedimentation tank.