A kind of flocculation purification agent for pretreatment of rural nutrient-rich wastewater and its preparation method

Abstract

The invention discloses a flocculating purifying agent for pretreating rural eutrophic wastewater and a preparation method of the flocculating purifying agent, belonging to the technical field of sewage treatment. The invention provides the flocculating purifying agent and in particular relates to a flocculating purifying agent by taking modified chitosan as a carrier. The flocculating purifying agent can be used for pretreating rural eutrophic wastewater and simultaneously deeply removing nitrogen and phosphorus. A traditional pure high polymer synthesis mode for preparing a wastewater flocculating agent is broken, comprehensive modified chitosan is introduced into raw materials for preparing the wastewater flocculating agent to serve as a basic molecular skeleton, the original high polymer materials are partially placed, the dependence of the traditional high polymer wastewater flocculating agent on petroleum resources can be reduced, the biodegradable performance of the traditional flocculating agent is improved, the production cost of the wastewater flocculating agent is reduced, and the flocculating purifying agent has significant environmental, social and economic benefits.

Description

technical field [0001] The invention relates to a flocculation purifying agent for pretreating nutrient-rich wastewater in rural areas and a preparation method thereof, belonging to the technical field of sewage treatment. Background technique [0002] Due to the complexity of the lake eutrophication problem, there are still many mechanisms that have not been understood by people. At present, the international research on eutrophication of shallow lakes with flooding characteristics still lacks mature theories. But in general, the eutrophication of lake water is mainly caused by the increase of nutrients such as nitrogen and phosphorus in the water. Therefore, the control of eutrophication is mainly targeted research on the removal of nitrogen and phosphorus. [0003] The electrocoagulation method was used to remove ammonia nitrogen and phosphorus in wastewater, and the electrode plate was made of aluminum or stainless steel. The thermodynamics and kinetics process of elec...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problems of low absorption efficiency, high production cost, untargeted pollution and degradation of eutrophic pollutants, and difficulty in removing nitrogen and phosphorus at the same time in existing flocculants for nitrogen and phosphorus removal, and at the same time make resourceful use of existing waste resources , to prepare high value-added, environmentally friendly nutrient-rich pollutant flocculant, the invention provides a flocculation purifier, especially a flocculation purifier with modified chitosan as a carrier, which can be used for pretreatment of rural eutrophication waste water