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Industrial wastewater screening method for promoting agglomeration of fine particles

A technology for industrial wastewater and fine particles, which is applied in the fields of instruments, electrical digital data processing, design optimization/simulation, etc., can solve the problems of PM2. Effect of promoting coagulation growth and reducing treatment cost

Pending Publication Date: 2021-03-26
NINGBO NOTTINGHAM NEW MATERIALS INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Studies have shown that most of the dust generated in the coal combustion process can be collected and removed by dust removal devices such as electrostatic precipitators, bag filters and wet electrostatic precipitators, but the fine particles, especially the smaller PM2.5 However, it is difficult to remove. In terms of quantity, there are still fine particles accounting for more than 90% of the total amount of dust that have not been removed and entered the ambient atmosphere. Although their mass fraction is small, the amount is huge and is more easily absorbed by the human body. cause great harm

Method used

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  • Industrial wastewater screening method for promoting agglomeration of fine particles
  • Industrial wastewater screening method for promoting agglomeration of fine particles
  • Industrial wastewater screening method for promoting agglomeration of fine particles

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Experimental program
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Embodiment 1

[0077] A method for screening industrial wastewater for promoting the aggregation of fine particles, comprising the following steps:

[0078] S1. Based on the Materials Studio software, the energy minimization model of fine particles and the energy minimization model of soluble starch in food industry wastewater are respectively constructed; among them, the main component of a certain food industry wastewater is soluble starch, and its mass concentration exceeds the total mass of food industry wastewater 0.001%, the main component of fine particles is SiO 2 , select SiO 2 Instead of fine particles, construct 8×8 SiO on the surface of fine particles 2 supercell model;

[0079] The specific operation of energy minimization is:

[0080] S11, select the main component SiO of fine particles 2 , use the Amorphouscell module of Materials Studio software to build 8×8 SiO 2 Supercell model, and then use the Materials Studio software Forcite module to use the Smart method to treat ...

Embodiment 2

[0093] A method for screening industrial wastewater for promoting the aggregation of fine particles, comprising the following steps:

[0094] S1. Based on the Materials Studio software, the energy minimization model of fine particles and the energy minimization model of calcium chloride in desulfurization industrial wastewater were respectively constructed; among them, the main component of desulfurization industrial wastewater is calcium chloride, and its mass concentration exceeds the total amount of desulfurization industrial wastewater. 1% by mass, the main component of fine particles is SiO 2 , select SiO 2 Instead of fine particles, construct 8×8 SiO on the surface of fine particles 2 Super cell model; the concrete operation of energy minimization is the same as embodiment 1;

[0095] S2, utilize layering tool (Build Layer) in the Materials Studio software to the amorphous unit cell model of the calcium chloride that step S1 obtains and SiO 2 The supercell model was p...

Embodiment 3

[0105] A method for screening industrial wastewater for promoting the aggregation of fine particles, comprising the following steps:

[0106] S1. Based on the Materials Studio software, the energy minimization model of fine particles and the energy minimization model of the main components in the food processing industrial wastewater after sedimentation treatment are respectively constructed; among them, the main components of the food processing industrial wastewater after sedimentation treatment are starch and PAM And sodium chloride, its respective mass concentration exceeds 0.001% of the total mass of food processing industrial wastewater after precipitation treatment, and the main component of fine particles is SiO 2 , select SiO 2 Instead of fine particles, construct 8×8 SiO on the surface of fine particles 2 Super cell model; the concrete operation of energy minimization is the same as embodiment 1;

[0107] S2, using the layering tool (Build Layer) in the Materials S...

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Abstract

The invention provides an industrial wastewater screening method for promoting agglomeration of fine particles, and belongs to the technical field of agglomeration of fine particles. The method comprises the following steps: S1, respectively constructing a model of fine particles and a model of main components in industrial wastewater based on molecular dynamics simulation software; s2, constructing an interaction model of main components and fine particles in the industrial wastewater; s3, performing dynamic simulation on the interaction model in the step S2 to enable the system to reach a simulation balance state; and S4, obtaining interaction energy and radial distribution function data of main components in the industrial wastewater and the surfaces of the fine particles according to the equilibrium structure of dynamic simulation, and evaluating and screening out candidate industrial wastewater for promoting agglomeration of the fine particles. The rapid and accurate screening method provided by the invention is applied to rapid screening and verification of industrial wastewater in the aspect of fine particle chemical agglomeration, and the screening efficiency and accuracy of the industrial wastewater for promoting fine particle agglomeration can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of agglomeration of fine particles, in particular to an industrial wastewater screening method for promoting the agglomeration of fine particles. Background technique [0002] Inhalable particulate matter (PM10) refers to fine particulate matter with an aerodynamic diameter less than or equal to 10 μm, especially the PM2.5 contained in it has caused serious atmospheric environmental problems and has attracted great attention in our country. The harm is that the particle size is small, the specific surface area is large, and it is easy to absorb harmful substances such as viruses and bacteria. After entering the human body, it can form deposits in the alveoli, causing respiratory diseases and cardiopulmonary diseases, which are extremely harmful to the human body; at the same time, fine particles in the atmosphere The residence time is long and the transmission distance is long. After the fine particles conta...

Claims

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Application Information

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IPC IPC(8): G06F30/25G16C20/64G06F119/14
CPCG06F30/25G16C20/64G06F2119/14
Inventor 吴韬杨刚陈艺珮史楷岐罗象
Owner NINGBO NOTTINGHAM NEW MATERIALS INST CO LTD