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Method for treating arsenic pollution in underground water

A groundwater and arsenic-contaminated technology, applied in the field of environmental remediation, can solve problems such as the difficulty of remediating contaminated soil, and achieve the effects of convenient operation, simple design, and cost control

Inactive Publication Date: 2014-04-16
JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a method for treating arsenic pollution in groundwater, which solves the difficult problems in the existing contaminated soil remediation

Method used

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Experimental program
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Embodiment Construction

[0007] The present invention will be described in detail below in conjunction with embodiments.

[0008] A method for processing groundwater arsenic pollution, comprising the following steps:

[0009] Step 1) Select PRB chemical material;

[0010] Step 2) Combined with modern instrumental analysis methods, study the removal effect, influencing factors and arsenic removal mechanism of rutile and anatase nano-titanium dioxide on groundwater arsenic;

[0011] Step 3) At the same time, FeCl3 is used to modify the rutile ore and use it to remove arsenic from the water body, to study the effect of iron-modified rutile ore on arsenic adsorption, influencing factors, regeneration experiments and simulated PRB experiments, and to explore the mechanism of iron-modified rutile ore to remove arsenic.

[0012] Further, the modern instrumental analysis methods include X-ray diffraction, Fourier transform infrared spectroscopy and photoelectron spectroscopy.

[0013] The main findings ...

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Abstract

The invention discloses a method for treating arsenic pollution in underground water. Mature water body arsenic removal materials at home and abroad are subjected to water body arsenic removal effect comparison and mineral element analysis to screen out the stable and efficient PRB chemical material which is suitable for Chinese economy; and X diffraction, Fourier infrared spectrum, photoelectron spectrum and other modern instrumental analysis methods are combined to research the removal effects of rutile-form nano titanium dioxide and anatase-form nano titanium dioxide on arsenic in underground water, influence factors and arsenic removal mechanisms.FeCl3 is utilized to modify the rutile and remove arsenic in the water body; and the arsenic adsorption effect of the iron modified rutile, influence factors, regeneration experiments and simulated PRB experiments are researched to discuss the arsenic removal mechanisms of the iron modified rutile.

Description

technical field [0001] The invention belongs to the technical field of environmental restoration, and in particular relates to a method for treating arsenic pollution in groundwater. Background technique [0002] Arsenic pollution in water body is one of the important environmental and social problems faced by many countries in the world. The research on the remediation technology and mechanism of arsenic pollution in water body is of great significance for protecting the ecological environment, improving people's health and building a harmonious society. At present, there is an urgent need to establish a low-cost, stable, reliable, and efficient in-situ remediation technology for arsenic-contaminated groundwater. Taking the shallow arsenic-contaminated groundwater of a realgar mine (AsS) in Chenzhou, Hunan Province as the research object, an in-situ permeable method for arsenic-contaminated groundwater remediation was established. Active reactive wall (Permeable Reactive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/58
Inventor 温涛程功弼
Owner JIANGSU GAIYA ENVIRONMENTAL SCI & TECH CO LTD
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