A reverse osmosis concentrated water treatment device and its treatment process

Abstract

The invention discloses a reverse osmosis concentrated water treatment device and its treatment process. Air pipe, mounting plate, air guide pipe, air jet head and supporting device, the air supply device is fixed on the bottom of the pool body, the output end of the air supply device is connected with one end of the air delivery pipe, the rotating device includes a rotating motor, a driving Gears and driven gears, the rotating motor is fixed at the bottom of the pool body, the output shaft of the rotating motor is fixed to the driving gear, the driving gear is meshed with the driven gear, and the driven gear is fixedly sleeved on the output shaft On the outside of the trachea, this reverse osmosis concentrated water treatment device and its treatment process can efficiently and evenly aerate the nanofiltration product water in the tank through the aeration device, which changes the traditional aeration method and reduces the construction of the ozone oxidation tank. Cost, while improving the treatment efficiency of nanofiltration product water.

Description

technical field [0001] The invention relates to the technical field of reverse osmosis concentrated water treatment, in particular to a reverse osmosis concentrated water treatment device and a treatment process thereof. Background technique [0002] At present, most domestic reverse osmosis concentrated water treatment methods are advanced oxidation and distillation concentration, and the advanced oxidation can be divided into ozone oxidation and Fenton oxidation. However, a single advanced oxidation treatment process is not only difficult to meet the discharge water standard stably, but also the treatment cost is very high. The evaporation residue produced by evaporation and concentration also requires high treatment costs to be effectively treated. For this reason, for the treatment of large-scale chemical wastewater, the treatment cost of 10-20 yuan per ton of concentrated water is obviously high , which greatly restricts the development of reclaimed water treatment and...

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Problems solved by technology

[0003] According to the patent No. 201410409461.4, a reverse osmosis concentrated water treatment process is characterized in that it includes: first, the reverse osmosis concentrated water enters the security filter after being buffered and pressurized to remove the carried impurities, and then enters the nanofiltration membrane treatment system, the nanofiltration membrane The produced water is discharged after reaching the comprehensive sewage discharge standard, and the concentrated solution of the nanofiltration system enters the aerobic adsorption digestion bed for further treatment. This process not only solves the problem of large-flow concentrated water treatment in reclaimed water reuse devices, but also has the advantages of low operating costs and the reduction of excess sludge in sewage plants. The comprehensive utilization of resources plays a positive role in promoting, but because most of the existing ozone oxidation tanks aerate the nanofiltration water through the gas pipelines arranged at the bottom, resulting in the use of a large number of gas pipelines, and some are Aeration of the nanofiltration product water through the aerator also requires a large number of aerators, which increases the cost of sewage treatment, and the aeration is uneven, so that the ozone gas cannot fully oxidize each area in the sewage, reducing the The efficiency of sewage treatment

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