Nano-iron chemical preparing and in-situ injecting synchronous integrated equipment

Abstract

The invention discloses nano-iron chemical preparing and in-situ injecting synchronous integrated equipment. The nano-iron chemical preparing and in-situ injecting synchronous integrated equipment comprises a nano-iron chemical producing system, an automatic control system, an in-situ injecting and monitoring system and the like. The nano-iron chemical producing system and the in-situ injecting and monitoring system are connected in series, the automatic control system is connected with the nano-iron chemical producing system and the in-situ injecting and monitoring system to achieve integrated control, and chemical producing and chemical injecting are conducted synchronously. The chemical producing system enables chemicals to be mixed and reacted sufficiently by adopting a stirring mode of high shear, and therefore the production efficiency is enhanced. The whole equipment enhances the degree of dispersion of the chemicals, and the time from chemical producing to chemical injecting is shortened, so that the problems of agglomeration and inactivation of nano-iron chemical in the processes of producing, storing, transporting and the like are solved.

Description

technical field [0001] The invention relates to a preparation device of nano-iron medicament, more specifically, the invention relates to a synchronous integrated device for preparation and in-situ injection of nano-iron medicament. Background technique [0002] According to the "Thirteenth Five-Year Plan for Ecological and Environmental Protection" to promote the comprehensive prevention and control of groundwater pollution, by 2020, the trend of increasing groundwater pollution across the country will be initially curbed, and the proportion of groundwater with extremely poor quality will be controlled at about 15%. However, there are still many non-ferrous metal mining areas or decommissioned chemical pollution sites in China. The groundwater in these areas contains various heavy metals. The contaminated sites are large and large, and the environmental risk of groundwater is high. The hexavalent chromium-contaminated groundwater is an important part of the heavy metal-cont...

AI Technical Summary

Problems solved by technology

For example, the authorized announcement number is CN 204953905 U utility model patent, which discloses a preparation and passivation equipment of nano-iron powder, which combines a nitrogen pressure limiting valve, a nitrogen buffer tank, a nitrogen flow meter, an iron pentacarbonyl gasifier, The dilution tank, feed nozzle, reaction kettle, passivator, and collection bin are connected in sequence to form a set of nano-iron powder preparation equipment, which solves the problems of nano-iron powder prepared by traditional chemical vapor concentration method and metal salt reduction method. Problems with large particle size, small specific surface area, poor magnetic properties, easy oxidation and uneven dispersion

However, the preparation of this equipment is a solid powder agent, and it is still necessary to add water to form a liquid agent before injecting it in the in-situ site restoration, which leads to a complicated production process of the agent, a long storage and transportation time, and may lead to the inactivation of some nano-iron agents

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