Novel industrial sewage treatment process

Abstract

The invention discloses a novel industrial sewage treatment process, which comprises the following steps that: the traditional sewage treatment technology is adopted to pre-treat the sewage, the pre-treated sewage enters an electromagnetic flocculent settling accelerator to be flocculent precipitated, the solid-liquid separation is carried out through the sedimentation, the above clean liquid enters an electromagnetic fluid reactor, solid fluidized medium produces local and instant high temperature under the effect of the electromagnetic field inside the electromagnetic fluid reactor, so the oxidation potential of the oxidation agent is improved, at the same time, the chemical activation energy of the pollutants is reduced through the electromagnetic oscillation, and the pollutants which are difficult to be degraded can be decomposed under the common effect of the above steps so as to realize the purification of the water. The process not only can reduce the treatment and investment cost and the land occupation area, but also can treat the pollutants which cannot be removed by the traditional process, and can realize the water purification which cannot be realized by other processes.

Description

technical field [0001] The invention belongs to the field of sewage treatment and discloses a new process for treating industrial waste water. Background technique [0002] A large number of pollutants in water bodies can be removed by traditional water treatment coagulation sedimentation and biochemical treatment technologies. These technologies are currently quite mature and the operating costs are relatively low, so they must be fully utilized. But there are still some soluble pollutants CODcr (Chemical Oxygen Demand in Chromium-based assay) and chromaticity that cannot be oxidized and removed by the commonly used oxidants at room temperature. [0003] At present, various biochemical water treatment processes are widely used. The basic principle is to cultivate and multiply a large number of bacteria that can decompose and absorb pollutants in sewage to purify sewage, but most industrial sewage lacks the bacteria required for reproduction. Nutritional ingredients, can no...

AI Technical Summary

Problems solved by technology

Its basic principle is similar to the coagulation-sedimentation process. There is no obvious oxidation reaction in the whole reaction process, so it is impossible to effectively remove pollutants dissolved in water that cannot be adsorbed by flocs. Large limitations, while producing a large amount of sediment, which brings troubles in sludge treatment

[0007] Adding oxidants to the water treatment process has been used in practice, but they all react at room temperature. Usually, many oxidation reactions are so slow at room temperature that they cannot occur, so the purpose of advanced sewage treatment cannot be achieved.

[0008] So far, there have been no reports on the treatment of industrial refractory sewage through traditional biochemical processes, electrocoagulation sedimentation accelerators, electromagnetic fluid reactors and their solid fluidized media in electromagnetic fluid reactors that generate local instantaneous, high temperature, and high pressure. It is reported that the chemical activation energy of pollutants is reduced by electromagnetic fluid reactor and its solid fluidized medium, and the oxidation potential of oxidant is promoted, so that organic matter in sewage can be effectively removed