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Multi-effect restoration material for restoration of black and odorous water body, preparation method and application thereof

A technology for repairing materials and black and odorous water bodies, which is applied in chemical instruments and methods, water/sewage treatment, biological water/sewage treatment, etc. , Improve the effect of pH increase and low cost

Active Publication Date: 2020-05-05
江苏金环科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the restoration materials used in the pretreatment of water bodies have single functions, and the activity and efficiency of restoration need to be improved urgently. Moreover, they are expensive, use a large amount, react slowly, and easily cause secondary pollution, etc.

Method used

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  • Multi-effect restoration material for restoration of black and odorous water body, preparation method and application thereof

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Effect test

preparation example Construction

[0051] The preparation method of the multi-effect restorative material of the present invention comprises the following steps:

[0052] A. Natural porous α-MnO 2 Put it into the planetary ball mill for 8-15 hours, and then sieve to obtain the natural porous α-MnO with a particle size of 50-120 mesh, a pore structure, and a pore size of 0.21-52.43nm. 2 type material particles;

[0053] B. Preparation of biochar catalyst:

[0054] ① Wash the collected biomass repeatedly for 3-5 times, rinse it with water, put it in an oven at 50°C for 8-18 hours, and crush and seal the dried biomass for later use;

[0055] ②Immerse 1000g of activated carbon in 0.1-0.3mol / L potassium permanganate solution, shake continuously at the speed r=100r / min in a constant temperature water bath oscillator at 20°C for 18-24h, let it stand for 20-48h, take out the activated carbon and rinse repeatedly , dried at 60°C to obtain modified activated carbon for use;

[0056] ③Collect the egg membrane, wash it...

Embodiment 1

[0065] In parts by mass, 26 parts of oxygen-releasing material, natural porous α-MnO 2 23 parts of type material particles, 8 parts of additives, 17 parts of biochar catalyst, 8 parts of modified ultrafine titanium dioxide, 12 parts of waste metal shavings and 6 parts of pH buffering agent were used to prepare composite restoration materials. The composite restorative material prepared above was placed in 300mg / L phenol solution, and the dosage was 8g / L. After reacting for 24 hours, measure the phenol concentration and TOC in the solution. The results showed that after 24 hours, the removal efficiency of phenol reached 97.8%, and the removal rate of TOC reached 93.4%.

Embodiment 2

[0067] In parts by mass, 25 parts of oxygen-releasing material, natural porous α-MnO 2 25 parts of type material particles, 7 parts of additives, 19 parts of biochar catalyst, 9 parts of modified ultrafine titanium dioxide, 8 parts of waste metal shavings and 5 parts of pH buffer were used to prepare composite restoration materials. The composite restorative material prepared above was placed in 300mg / L phenol solution, and the dosage was 8g / L. After reacting for 24 hours, measure the phenol concentration and TOC in the solution. The results showed that after 24 hours, the removal efficiency of phenol reached 99.8%, and the removal rate of TOC reached 96.7%.

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Abstract

The invention provides a multi-effect repairing material for repairing a black and odorous water body as well as a preparation method and application thereof. The multi-effect repairing material is prepared from the following components in parts by mass: 15 to 30 parts of oxygen releasing material, 15 to 35 parts of natural porous alpha-MnO2 type material particles, 7 to 12 parts of additive, 12 to 23 parts of biological charcoal catalyst, 5 to 18 parts of modified ultrafine titanium dioxide, 8 to 25 parts of waste metal filing and 5 to 12 parts of pH (Potential of Hydrogen) buffering agent. The multi-effect repairing material provided by the invention has stable properties, nano-pores and a complicated network structure, and has relatively good adsorption and catalytic oxidation activity;the multi-effect repairing material has long oxygen releasing lasting time and high releasing efficiency and can ensure the sustainability of an underwater biological repairing effect; a ternary internal electrolysis system can be automatically formed in a water body and multi-effect cooperation of adsorption, chemical oxidization, catalytic oxidation, electric oxidation and biological repairingis realized.

Description

technical field [0001] The invention belongs to the technical field of repairing black and odorous water bodies, and in particular relates to a multi-effect repairing material for repairing black and odorous water bodies and a preparation method thereof. Background technique [0002] The "Water Pollution Prevention and Control Action Plan" ("Water Ten Measures") issued by the State Council in April 2015 clearly provided a timetable for the treatment of black and odorous water bodies: by 2020, black and odorous water bodies in built-up areas of prefecture-level and above cities will be controlled within 10% , By 2030, black and odorous water bodies in urban built-up areas will be eliminated in general. Although since the "Tenth Five-Year Plan", some achievements have been made in eliminating the black and smelly phenomenon in some river courses and restoring the water ecological environment through action plans such as main river regulation, main river channel management, cle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28C02F1/467C02F1/72C02F3/34C02F103/06
CPCC02F1/281C02F1/283C02F1/4672C02F1/72C02F1/725C02F3/34C02F2103/06
Inventor 顾万建王莹蒋超尚鸣方超吴晔
Owner 江苏金环科技有限公司
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