Multistage ferric-carbon microelectrolysis coupled Fenton oxidation bed reactor

Abstract

The invention discloses a multistage ferric-carbon microelectrolysis coupled Fenton oxidation bed reactor. The multistage ferric-carbon microelectrolysis coupled Fenton oxidation bed reactor is characterized by comprising a lifting water pump, a water inlet pipeline, a hydrogen peroxide dosing device, a water inlet pipeline mixer, a water distribution chamber, a multistage ferric-carbon microelectrolysis coupled Fenton oxidation bed reactor body, a material taking and replacing port, an elemental iron and granular activated carbon mixture layer, an outlet water clarification zone, a sieve plate water distribution system, a sludge discharging opening, a reactor draining ditch, a water outlet pipe and a precipitation tank, wherein the precipitation tank comprises a precipitation tank body, a water outlet pipeline and a sludge discharging pipeline. According to the multistage ferric-carbon microelectrolysis coupled Fenton oxidation bed reactor disclosed by the invention, the problems of the traditional coking wastewater treatment processes that COD (Chemical Oxygen Demand), ammonia nitrogen, total nitrogen and chromaticity in outlet water do not reach the standards and the like due to the fact that the effect of removal of refractory and complicated organic pollutants is not ideal are solved, and the treatment on refractory polycyclic and heterocyclic organic substances and toxic and harmful substances in wastewater is extremely effective.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a multi-stage iron-carbon micro-electrolysis coupled Fenton oxidation bed reactor. Background technique [0002] Coking wastewater is a kind of refractory wastewater containing a large amount of oil, phenol, ammonia nitrogen and other harmful and toxic substances produced during the coal coking process. This type of wastewater has the characteristics of complex composition and high concentration of pollutants. In addition to 85% phenolic compounds, its organic components also include aliphatic compounds, polycyclic aromatic hydrocarbons (PAHs) and heterocyclic compounds containing oxygen, nitrogen, and sulfur elements. Wait. The discharge of organic pollutants into the water will consume the dissolved oxygen in the water, which will eventually lead to the lack of oxygen in the water body and cause the aquatic animals in the water to be unable to breathe and d...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a multi-stage iron-carbon micro-electrolysis coupled Fenton oxidation bed reactor to solve the unsatisfactory removal effect of the traditional coking wastewater treatment process on refractory and complex organic pollutants, resulting in COD, ammonia nitrogen, Total nitrogen and chromaticity are not up to standard, especially for the treatment of refractory polycyclic and heterocyclic organic substances and toxic and harmful substances in wastewater

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