Magnetic treatment agent for sewage

Abstract

The invention relates to the field of sewage treatment, and discloses a magnetic treatment agent for sewage. The treatment agent is composed of the following components in parts by weight: 30-50 partsof ferroferric oxide nano magnetic particles, 30-50 parts of a polyethylene glycol chitosan graft, 1-5 parts of a Bi2MoO6 catalyst, and 10-25 parts of a dispersant, wherein the polyethylene glycol chitosan graft covers the surfaces of the ferroferric oxide nano magnetic particles, the Bi2MoO6 catalyst is supported on the polyethylene glycol chitosan graft, and the graft molar ratio of polyethylene glycol to chitosan is 1:1. The treatment agent for the sewage provided by the invention can degrade pollutants in a water body only by using sunlight, the utilization rate of solar energy is high, the activity is strong, the content of the pollutants in the water body can be effectively reduced, and the treatment agent has magnetism, is easy to recycle after being used, has good water solubility, strong adsorption capacity and a simple process, can be repeatedly utilized, reduces the costs, and is suitable for practical production application.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a magnetic sewage treatment agent. Background technique [0002] Nowadays, the problem of water pollution is becoming more and more serious, and people pay more and more attention to it. There are many methods of sewage treatment, but they are basically high energy consumption and low efficiency. Therefore, the development of sewage treatment agents with low energy consumption and high efficiency is the top priority. At present, many studies and patents have proposed to load titanium dioxide on nanopowder to absorb and photocatalytically decompose pollutants in water, but the main drawback of this treatment agent is TiO2. 2 It can only be driven by ultraviolet light in sunlight (accounting for only 4% of sunlight energy), and its utilization rate of sunlight is low, its catalytic performance is not ideal, and the treatment agent is nano-powder, which is difficult to recycle and di...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, the problem of water pollution is becoming more and more serious, and people are paying more and more attention to it. There are many methods for sewage treatment, but they are basically high energy consumption and low efficiency. Therefore, the development of sewage treatment agents with low energy consumption and high efficiency is the top priority.

At present, many studies and patents have proposed to load titanium dioxide on nanopowder to absorb and photocatalytically decompose pollutants in water, but the main drawback of this treatment agent is TiO2. 2 It can only be driven by ultraviolet light in sunlight (accounting for only 4% of sunlight energy), and its utilization rate of sunlight is low, its catalytic performance is not ideal, and the treatment agent is nano-powder, which is difficult to recycle and difficult multiple reuse