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Integrated in-situ remediation and treatment medicament of surface black and odorous water and bottom mud as well as preparation method and application thereof

A black and odorous water body, in-situ repair technology, applied in the field of water treatment, can solve the problem of high cost, large dosage, insufficient consideration of the complexity of pollutants in the sediment, long-term stability changes of diverse pollutants, and pollutant migration Effect and other issues, to achieve the effect of improving efficiency, high treatment efficiency, and strengthening the degradation effect of in-situ bioremediation

Active Publication Date: 2018-01-09
AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dosage is large and the cost is high. At the same time, the output of sediment will be increased by adsorption.
[0007] The method of the above invention patents only inhibits the release of pollutants such as nitrogen and phosphorus in the sediment, and does not fully consider the complexity and diversity of the pollutants in the sediment, the long-term stability changes of the pollutants in the sediment, and the relationship between the sediment and the upper water body Continuing migration of pollutants between

Method used

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  • Integrated in-situ remediation and treatment medicament of surface black and odorous water and bottom mud as well as preparation method and application thereof
  • Integrated in-situ remediation and treatment medicament of surface black and odorous water and bottom mud as well as preparation method and application thereof
  • Integrated in-situ remediation and treatment medicament of surface black and odorous water and bottom mud as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) First prepare the surface black and odorous water body and bottom mud integrated repair and treatment agent: wherein 5 parts of potassium monopersulfate compound salt are added to 40 parts of chitosan, 35 parts of polyferric sulfate, and 10 parts of potassium nitrate by weight. 4 parts of sodium percarbonate, 2 parts of calcium peroxide, 2 parts of calcium hypochlorite, 0.5 parts of compound enzyme (protease, amylase and cellulase mixed at 1:1:1), 1.5 parts of starch glue, dispersed and mixed evenly, and then tested by visible light Just irradiate.

[0051] (2) In the way of continuous dosing, the bottom area of ​​the bottom mud is 250mg / m 2 Add the prepared integrated restoration and treatment agent for surface black and odorous water body and sediment to the sediment-water interface, and stir or hydraulically disturb the sediment-water-medicine to fully mix. The results are shown in Table 1 below.

[0052] Table 1 Experimental results of integrated repair and tre...

Embodiment 2

[0055] (1) First prepare the surface black and odorous water body and bottom mud integrated repair and treatment agent: take 4 parts of potassium monopersulfate compound salt by weight, add 45 parts of natural zeolite, 35 parts of polyaluminum ferric chloride, and 7 parts of potassium nitrate 3 parts of sodium percarbonate, 2 parts of calcium peroxide, 1 part of calcium hypochlorite compound enzyme (protease, amylase and cellulase mixed in 1:1:1) 1.5 parts, 1.5 parts of epoxy resin adhesive After mixing evenly, it can be obtained by irradiating with visible light.

[0056] (2) In the way of continuous dosing, the bottom area of ​​the bottom mud is 350mg / m 2 Add the prepared integrated restoration and treatment agent for surface black and odorous water body and sediment to the sediment-water interface, and stir or hydraulically disturb the sediment-water-medicine to fully mix. The results are shown in Table 2 below:

[0057] Table 2 Experimental results of integrated restorati...

Embodiment 3

[0061] (1) First prepare the surface black and odorous water body and sediment integrated restoration and treatment agent: take 4 parts of potassium monopersulfate compound salt by weight ratio, add 50 parts of diatomite, 30 parts of polyaluminum ferric chloride, and potassium nitrate 7.5 parts, 2 parts of sodium percarbonate, 2 parts of calcium peroxide, 2 parts of sodium hypochlorite, 1.5 parts of compound enzyme (protease, amylase and cellulase mixed in 1:1:1), 1 part of epoxy resin adhesive After uniformity, it can be obtained by irradiation with visible light.

[0062] (2) In the way of continuous dosing, the bottom area of ​​the bottom mud is 180mg / m 2 Add the prepared integrated repair agent for surface black and odorous water and sediment to the sediment-water interface, and stir or hydraulically disturb the sediment-water-medicine to fully mix. The results are shown in Table 3 below:

[0063] Table 3 Experimental results of integrated repair and treatment agents (mg / ...

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Abstract

The invention discloses an integrated in-situ remediation and treatment medicament of surface black and odorous water and bottom mud. The integrated in-situ remediation and treatment medicament is prepared from an agglomeration and adsorption material, polymeric ferric salt, nitrate, oxidants, complex enzymes, adhesives and the like, wherein the oxidants are selected from at least one of percarbonates, potassium monopersulfate compound salts, peroxides and hypochlorite. The medicament is applied to integrated remediation of the surface black and odorous water and the bottom mud; compound chemicals are added into the medicament, so that the dissolved oxygen in the water and the bottom mud can be increased; an ecosystem of microorganisms can be activated and restored; the in-situ biologicalremediation and degradation effects can be enhanced; the self-purification capacity of the water is improved; the yield of the bottom mud is reduced; meanwhile, the efficiency of removing nitrogen andphosphorus is improved; the medicament has long-term stability, is free of secondary pollution, and has good application prospects.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a long-acting agent for integrated restoration and treatment of surface black and odorous water bodies and bottom mud. Background technique [0002] The phenomenon of "black odor" in rivers is a biochemical phenomenon - anaerobic decomposition of organic matter in water bodies. The organic matter existing in the water body consumes more oxygen than reoxygenation during the decomposition process, resulting in water body anoxic. Anaerobic microorganisms reproduce in large numbers and decompose organic matter to produce a large amount of odorous gases such as amines, hydrogen sulfide, ammonia, etc., which make the water body stink, escape from the water surface and enter the atmosphere, resulting in a foul smell around the water body. At the same time, due to the lack of oxygen in the water body, heavy metals such as iron and manganese in the sediment and water are reduced, and they ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F11/00
Inventor 乔瑞平刘君
Owner AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD
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