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Novel ecological remediation agent

A new type of ecological restoration technology

Inactive Publication Date: 2018-02-23
SHAOXING QIUS ENVIRONMENTAL PROTECTION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the existing defects, provide a new type of ecological restoration agent, adjust its components in combination with different river pollution characteristics, and adjust its components through coagulation, adsorption, redox, chelation fixation, separation and precipitation, etc. Physicochemical process, in-situ ecological restoration of sediment to meet the needs of the existing market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A novel ecological restoration agent of the present invention, which comprises the following ingredients: 10wt% nano-scale ferric oxide; 60wt% calcium peroxide; 15wt% kaolin; 25wt% diatomite; 3wt% citric acid; 8wt% chitin and its derivatives; 40wt% modified starch.

[0026] In the actual use of the present invention, the pH of the sewage before treatment is 7.9, the index of permanganate is 12.01mg / L, the index of ammonia nitrogen is 4.06mg / L, and the index of total phosphorus is 0.2mg / L, which is inferior to Class V water quality; However, after the treatment of the present invention, the pH is 7.1, the ammonia nitrogen index is 0.77mg / L, and the total phosphorus index is 0.14mg / L, which is Class III water quality.

Embodiment 2

[0028] A novel ecological restoration agent of the present invention comprises the following components: 30wt% nano-scale ferric oxide; 50wt% calcium peroxide; 10wt% kaolin; 50wt% diatomite; 5wt% citric acid; 5wt% % chitin and its derivatives; 30wt% modified starch.

[0029] In the actual use of the present invention, the pH of the sewage before treatment is 8.16, the permanganate index is 11.71mg / L, the ammonia nitrogen index is 3.56mg / L, and the total phosphorus index is 0.8mg / L, which is inferior to Class V water quality; However, after the treatment of the present invention, the pH is 7.0, the ammonia nitrogen index is 1.87 mg / L, and the total phosphorus index is 0.07 mg / L, which is Class IV water quality.

Embodiment 3

[0031] A novel ecological restoration agent of the present invention comprises the following components: 20wt% nano-scale ferric oxide; 55wt% calcium peroxide; 13wt% kaolin; 38wt% diatomite; 4wt% citric acid; 6wt% % chitin and its derivatives; 35wt% modified starch.

[0032] In the actual use of the present invention, the pH of the sewage before treatment is 7.5, the permanganate index is 12.88mg / L, the ammonia nitrogen index is 5.46mg / L, and the total phosphorus index is 0.52mg / L, which is inferior to Class V water quality; However, after the treatment by the present invention, the pH is 7.1, the ammonia nitrogen index is 1.57mg / L, and the total phosphorus index is 0.24mg / L, which is Class III water quality.

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PUM

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Abstract

The invention discloses a novel ecological remediation agent. The novel ecological remediation agent comprises 10-30 wt% of nanometer-sized ferroferric oxide, 50-60 wt% of calcium peroxide, 10-15 wt%of kaolin, 25-50 wt% of diatomaceous earth, 3-5 wt% of citric acid, 5-8 wt% of chitin and derivatives of the chitin and 30-40 wt% of modified starch. The novel ecological remediation agent has the advantages that the shortcomings in the prior art can be overcome by the aid of the novel ecological remediation agent; pollution characteristics of different rivers are combined with one another, components of the novel ecological remediation agent are adjusted, in-situ ecological remediation is carried out on bottom mud by the aid of physical and chemical procedures such as coagulation, adsorption,oxidation-reduction, chelation immobilization and separation and precipitation, and accordingly requirements of current markets can be met.

Description

technical field [0001] The invention relates to a novel ecological restoration agent. Background technique [0002] With the rapid development of industry and agriculture, a large amount of organic-rich domestic wastewater and some industrial wastewater are discharged into rivers and lakes, resulting in a sharp drop in oxygen content in water bodies, resulting in serious organic pollution in rivers and lakes. A large amount of pollutants are deposited at the bottom of rivers and lakes, causing the sediment to remain in an anaerobic environment for a long time, and gradually decay under the action of anaerobic microorganisms, causing the river channel to become black and smelly. At present, the river treatment methods for urban pollution include dredging, microbial aeration, aquatic plants and in-situ restoration, etc. Conventional dredging projects require large investment, cumbersome operation, high moisture content of sludge, and difficult transportation and disposal; mic...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/28C02F1/72C02F1/52C02F1/58C02F1/62C02F11/00
CPCC02F1/00C02F1/281C02F1/5236C02F1/58C02F1/62C02F1/722C02F11/008C02F2101/101C02F2101/105C02F2103/007C02F2209/04C02F2209/06C02F2209/14
Inventor 秋晓东
Owner SHAOXING QIUS ENVIRONMENTAL PROTECTION TECH DEV
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