Three-dimensional catalytic oxidation process for treating phenolsulphonic wastewater
A catalytic oxidation and phenolsulfonic acid technology, applied in the field of water treatment, can solve the problems of complex operation, low treatment efficiency, high operating cost, etc., and achieve the effect of simple operation, low production and operation cost, and improved biodegradability
Inactive Publication Date: 2010-12-01
BAOSTEEL ENG & TECH GRP
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The task of the present invention is to provide an improved three-dimensional catalytic oxidation treatment of phenolsulfonic acid (PSA) wastewater process, which solves the existing PSA wastewater using H2O2 catalytic oxidation treatment method, which has low treatment efficiency, high operating cost and complicated operation The problem
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The invention relates to a process for treating phenol sulfonic acid (PSA) wastewater through three-dimensional catalytic oxidation, which comprises a pretreatment process and a catalytic oxidation process. The pretreatment process comprises an equalization aeration flow and a neutralization coagulative precipitation flow, wherein the wastewater is pretreated by equalization aeration adjustment and neutralization coagulative precipitation, and then is treated with catalytic oxidation, thus pollutants of organic substances, and the like in the wastewater can be effectively degraded, and the biodegradability of the wastewater is improved. The catalytic oxidation process adopts a two-stage treating process consisting of flows of water feeding for reaction and circulation for water discharging which are operated continuously, a wastewater treatment period is finished after two stages of catalytic oxidation reactions and then the next reaction period starts, thus the wastewater is treated in a circulating mode repeatedly. The process effectively solves the problem of difficult treatment on the PSA wastewater at present, provides a process for treating high-concentration toxic harmful wastewater efficiently, and has the advantages of stable treating effect, low the production running cost, and simple and convenient operation.
Description
Three-dimensional Catalytic Oxidation Process for Treating Phenolsulfonic Acid Wastewater technical field The invention belongs to the field of water treatment, in particular to a three-dimensional catalytic oxidation process for treating phenolsulfonic acid (PSA) wastewater. Background technique Phenolsulfonic acid (PSA) wastewater produced during the production of tinplate is a difficult wastewater to treat. Phenolsulfonic acid (C6H4(OH)SO3H) is used as an electroplating additive in the cold-rolled tinplate production line, which can effectively improve the electroplating efficiency and the surface treatment quality of the strip. In the daily operation of the tinning unit, PSA wastewater needs to be continuously discharged due to reasons such as post-plating cleaning of the strip, and the PSA concentration contained in this part of the wastewater is relatively low. During scheduled repair or annual repair, all the tin plating solution needs to be replaced. At this time,...
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IPC IPC(8): C02F9/06C02F1/58C02F1/72C02F1/461C02F1/52C02F1/66C02F103/16C02F101/34
Inventor 刘捷涛王万俊庞翠玲
Owner BAOSTEEL ENG & TECH GRP