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Rare-earth-based multi-element water body repairing agent and preparation method thereof

A water body remediation, rare earth-based technology, applied in chemical instruments and methods, water/sewage treatment, adsorbed water/sewage treatment, etc. The effect of increasing dissolved oxygen and high oxidation potential

Inactive Publication Date: 2017-05-31
CHANGSHA HUIJU ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a rare earth-based multi-component water restoration agent to solve the technical problems in the prior art that cannot purify water with long-term efficiency and effectively decompose pollutants

Method used

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  • Rare-earth-based multi-element water body repairing agent and preparation method thereof

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Effect test

Embodiment 1

[0039] Example 1: A rare earth-based multi-component water restoration agent and its preparation method

[0040] A rare earth-based multi-component water restoration agent, which is prepared from the following raw materials in parts by weight: 40 parts of calcium persulfate; 15 parts of polyacrylamide; 15 parts of diatomite; 45 parts of iron powder; 20 parts of activated carbon powder; 10 parts of cerium powder; 15 parts of Portland cement;

[0041] The preparation method of the above-mentioned rare-earth-based multi-element water body repairing agent comprises the following steps:

[0042] 1) Mixing: Weigh and mix calcium persulfate, polyacrylamide, diatomaceous earth, iron powder, activated carbon powder, cerium powder, Portland cement and other raw materials in proportion, then add appropriate amount of water, and stir evenly get a wet mixture;

[0043] 2) Extrusion molding: inject the mixture obtained in step 1) into a honeycomb mold and extrude to make 1×1×1cm 3 Then p...

Embodiment 2

[0044] Example 2: A rare earth-based multi-element water restoration agent and its preparation method

[0045] A rare earth-based multi-component water restoration agent, which is prepared from the following raw materials in parts by weight: 35 parts of calcium persulfate; 5 parts of polyacrylamide; 5 parts of diatomite; 35 parts of iron powder; 15 parts of activated carbon powder; 5 parts of cerium powder; 10 parts of Portland cement;

[0046] The preparation method of the above-mentioned rare-earth-based multi-element water body repairing agent comprises the following steps:

[0047] 1) Mixing: Weigh and mix calcium persulfate, polyacrylamide, diatomaceous earth, iron powder, activated carbon powder, cerium powder, Portland cement and other raw materials in proportion, then add appropriate amount of water, and stir evenly get a wet mixture;

[0048] 2) Extrusion molding: inject the mixture obtained in step 1) into a honeycomb mold and extrude to make 1×1×1cm 3 Then place ...

Embodiment 3

[0049] Embodiment 3: The restoration agent prepared by the present invention is used for the comparative test of polluted water restoration

[0050] In 5 20L water tanks, pack 15L polluted lake water into, drop into respectively the restoration agent 10g that embodiment 1, embodiment 2 prepare in 2 water tanks wherein, drop into single component calcium persulfate 10g in 1 water tank wherein, 10 g of commercially available iron-carbon micro-electrolytic fillers were put into one of the water tanks, and one water tank was set as a blank control group (without adding any substance), and sampling was carried out after 7 days.

[0051] Table 1 Contrast test results of restoration agents used in water restoration

[0052]

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Abstract

A rare-earth-based multi-element water body repairing agent is prepared from the following raw materials in parts by weight: 35-40 parts of calcium persulfate, 5-15 parts of polyacrylamide, 5-15 parts of diatomite, 35-45 parts of iron powder, 15-20 parts of activated carbon powder, 5-10 parts of cerium powder and 10-15 parts of silicate cement. The preparation method comprises the following steps: weiting calcium sulfate, polyacrylamide, diatomite, iron powder, activated carbon powder, cerium powder, silicate cement and the like according to the proportion and mixing the raw materials, adding a proper amount of water, and uniformly stirring to obtain a wet mixture; injecting the mixture into a honeycomb-shaped mold, extruding to prepare a small cubic shape with the size of 1*1*1 cm3, then placing the small cubic at room temperature, and curing for 7 days in a dark place to obtain a finished product of the repairing agent. The repairing agent disclosed by the invention is applied to the remediation of eutrophic polluted water, the COD can be efficiently removed, the turbidity can be reduced, the dissolved oxygen can be improved, and the water quality can be effectively purified.

Description

[0001] Technical field: [0002] The invention relates to the technical field of water body restoration, in particular to a rare earth-based multi-component water body restoration agent and a preparation method thereof. [0003] technical background: [0004] Black and odorous water is an extreme manifestation of water organic pollution. The mechanism of black and odor in most water bodies is basically the same. It is caused by the lack of oxygen in the water and the corruption of organic matter. When a large amount of organic pollutants enter the water body, under the biochemical action of aerobic microorganisms, a large amount of oxygen in the water body is consumed, and the water body is transformed into an anoxic state, resulting in the proliferation of anaerobic bacteria, and the corruption, decomposition, and fermentation of organic matter make the water body become Black and smelly. [0005] Due to the excessive nutrients in eutrophic water bodies, algae reproduction, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F1/28C02F1/467C02F1/56
CPCC02F1/72C02F1/281C02F1/467C02F1/56C02F1/725
Inventor 张柏林易师
Owner CHANGSHA HUIJU ENVIRONMENTAL TECH CO LTD
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