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Purifying method for rainwater runoff pollutants and purifying material containing zeolite

A technology for purifying materials and pollutants, which is applied in the purification field of zeolite-containing purification materials and rainwater runoff pollutants. It can solve the problems of ammonia nitrogen pollutants and total phosphorus pollutants without purification ability, so as to reduce the impact on the ecological environment and improve Removal ability, strong theoretical effect

Pending Publication Date: 2018-09-28
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current research on porous cement concrete is still in its infancy in terms of the purification performance and influence rules of rainwater runoff pollution. Although porous cement concrete has a good purification effect on suspended solids, it is not effective for ammonia nitrogen pollutants and total phosphorus. Pollutants have almost no effective purification ability, let alone effectively solve the pollution problems of different environments

Method used

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  • Purifying method for rainwater runoff pollutants and purifying material containing zeolite
  • Purifying method for rainwater runoff pollutants and purifying material containing zeolite
  • Purifying method for rainwater runoff pollutants and purifying material containing zeolite

Examples

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Effect test

Embodiment 1

[0093] The purification method of the rainwater runoff pollutant of the present embodiment comprises the following steps:

[0094] (1) Place a plastic plate with a round hole (1mm in diameter) at one-third of the bottom of the plastic cylinder, and place zeolite on the plastic plate with a particle size of 1.8mm and a specific surface area of ​​500m 2 / g, the height is 3cm;

[0095] (2), placed on the zeolite with a particle size of 5mm and a specific surface area of ​​200m 2 / g, a porous cement concrete aggregate (formed by basalt) with a diameter of 10cm and a height of 5cm;

[0096] (3) Flow the configured rainwater runoff pollutant water sample through the porous cement concrete aggregate and zeolite to obtain the first zeolite purification solution.

[0097] Among them, the particle size of zeolite is within 1.2-2mm, and the specific surface area is 300-700m 2 All within / g are possible.

[0098] The particle size of the porous cement concrete aggregate is within 4.75...

Embodiment 2

[0100] The purification method of the rainwater runoff pollutant of the present embodiment comprises the following steps:

[0101] (1) Place a plastic plate with a round hole (1mm in diameter) at one-third of the bottom of the plastic cylinder, and place zeolite on the plastic plate with a particle size of 1.8mm and a specific surface area of ​​500m 2 / g, the height is 3cm;

[0102] (2), placed on the zeolite with a particle size of 5mm and a specific surface area of ​​200m 2 / g, a porous cement concrete aggregate (formed by basalt) with a diameter of 10cm and a height of 5cm;

[0103] (3) Slowly flow the prepared phosphate standard solution through the porous cement concrete aggregate and zeolite to obtain a second zeolite purification solution.

Embodiment 3

[0105] The purification method of the rainwater runoff pollutant of the present embodiment comprises the following steps:

[0106] (1) Place a plastic plate with a round hole (1mm in diameter) at one-third of the bottom of the plastic cylinder, and place zeolite on the plastic plate with a particle size of 1.8mm and a specific surface area of ​​500m 2 / g, the height is 3cm;

[0107] (2), placed on the zeolite with a particle size of 5mm and a specific surface area of ​​200m 2 / g, a porous cement concrete aggregate (formed by basalt) with a diameter of 10cm and a height of 5cm;

[0108] (3) Slowly flow the configured ammonia nitrogen standard working solution through the porous cement concrete aggregate and zeolite to obtain the third zeolite purification solution.

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Abstract

The invention provides a purifying method for rainwater runoff pollutants and a purifying material containing zeolite. The purifying method comprises the following steps: water-purifying filter material zeolite and porous cement concrete aggregate are added for purifying the rainwater runoff pollutants, and the water-purifying filter material zeolite is laid under the porous cement concrete aggregate, wherein the rainwater runoff pollutants include suspension pollutants, ammonia nitrogen pollutants and total phosphorus pollutants, and the purifying material comprises the porous cement concreteaggregate and the zeolite laid under the porous cement concrete aggregate. According to the invention, the purification effect of the porous cement concrete aggregate on the rainwater runoff pollutants can be improved after the water-purifying filter material zeolite is added, and in particular, the purification effects on the ammonia nitrogen pollutants and the total phosphorus pollutants are both greatly improved. Therefore, the purification method can directly and effectively improve the purification effect of the porous cement concrete, and can be flexibly applicable to the environments of different pollutants, so that the pollution problem of runoff sewage can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of rainwater pollution, and in particular relates to a method for purifying rainwater runoff pollutants and a purification material containing zeolite. Background technique [0002] At present, the global water resources are scarce, the environment is deteriorating, and the demand for ecological civilization construction is increasing. Therefore, research on the water purification performance of green and environmentally friendly porous pavement materials can make porous pavement effective in water resource conservation, ecological sustainability and environmental protection. Protection etc. play a role. The main requirement for porous permeable pavements in cities near the sea is that rainwater can infiltrate into the soil or flow back into rivers to make full use of water resources through permeable pavement, so that rainwater recycling can turn waste into treasure. However, the current research on porous...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/42C02F101/10C02F101/16
CPCC02F1/281C02F1/42C02F2001/425C02F2101/105C02F2101/16C02F2103/001
Inventor 李辉梁霄林思劼于天宇张恒基周浩南
Owner TONGJI UNIV
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